Wellshow RF Connector, RF Coaxial Cable Assembly, GSM, GPS, WiFi Antenna Manufacturer

RF Connector – FAKRA Connector Introduction

Wellshow — Wed, 31 Aug 2011 03:45:52 +0000

FAKRA connectors are equipped with a standardized coding system which permits easy and fast assembly using fourteen possible coding. The locking system with primary and secondary locking guarantees highest reliability of assembly and contact. Even in vehicle areas with high stress, for example vibrations, FAKRA connectors will always guarantee correct data transfer.

FAKRA connectors are available either in 50ohm or 75ohm impedance. 50ohm FAKRA connectors usually are specified up to 6GHz, and 75ohm FAKRA connectors are fully customized products.

FAKRA Connectors are specially designed for automotive applications. They are based on the SMB connector interface and comply with the standard for a uniform connector system established by FAKRA (Automobile Expert Group). Due to their special standard locking system FAKRA connectors fulfill the high functional and safety requirements of today’s automotive industry. FAKRA connectors are specified for 6 GHz. These connectors are popularly used in GPS antenna, Engine management system, Analog/Digital radio, Auxiliary heating, TV/Video-displays, Antenna, Distributor box, Accident data analysis, Cellular phone, Remote control keyless entry, Distance control, Air pressure control, and Navigation system.

Mechanical Feature:

FAKRA male

Snap-on coupling
Plastic housing covered (14 color options)
Six slots radically spaced outer contact inside shell
Female center contact
Insulator surrounds female center contact wholly for 50ohm
An air gap between female center contact and outer contact for 75ohm Fakra male

FAKRA female

Snap-on coupling
Plastic housing covered (14 color options)
A trough for mating captive after a smooth area of dia. 3.7mm, 3.0mm length from mating end
Male center contact
Insulator nestles up throughout against outer contact. An air gap between insulator and male center contact for 50ohm Fakra female
Reducing insulator amount. An air gap between male center contact and outer contact for 75ohm Fakra connector

Plug and Jack Keying Options

Plug Keying Options

Jack Keying Options

Mechanical and Color Coding

How to judge FAKRA connectors’ feature from outline:

FAKRA connector Male (Plug)

FAKRA connector Female (Jack)

FAKRA connector right angle type:

FAKEA connector right angle type

The cable entry way or PCB terminated way is at 90 degrees against coupling way.

FAKRA connector straight type:

FAKRA connector straight type

The cable entry way or PCB terminated way is at 180 degrees to coupling way.

FAKRA connector female/ jack bulkhead type:

Besides mating trough, there is an outer thread on body, then we can define this FAKRA connector is bulkhead type.
1) Panel mount type bulkhead

FAKRA connector Panel mount type bulkhead

FAKRA connector bulkhead type goes through the panel mounting hole toward the external of device from the internal, and mount it with spring from outside.

2) Front mount type bulkhead

FAKRA connector Front mount type bulkhead

FAKRA connector bulkhead type goes through the panel hole toward the internal of device from the external, and mount it with washer and nut from inside.

FAKRA connector PCB connector:

FAKRA connector PCB connector

PCB type FAKRA connector normally has 2.9mm or 3.9mm leg lengths. Four legs and one conductor will go through PCB vertically, and be soldered in rear side of PC board.

AR021 ZigBee 868MHz wireless Antenna

Wellshow — Tue, 17 May 2011 06:26:59 +0000

The frequency of this ZigBee dipole antenna is 868MHz and is popular wireless and free license ISM RF band in Europe for Industrial, Scientific and Medical (ISM) application.

The return loss can be -24dB which provide an excellent radio frequency(RF) signal tramission and receiving. The terminated connector can be standard SMA plug/female and also can be RP SMA plug/female. Feel free to contact us for technical assistance or further discussion.

If you are interested in other Wireless Antenna, we also have them. Please link our main http://www.wellshow.com/products/antennas/wifi-antennas/ webpage to get more choices.

Dimension

AR021 Antenna Dimension

Specification

Mechanical		Electrical
Antenna	TPU	Frequency Range	868MHz
Color	Black	Impedance	50 Ω
Operating Temperature	-10°C~+75°C	VSWR	2.0 Max
Storage Temperature	-10°C~+75°C	Directional	Omni
Connector Type	RP-SMA Plug, SMA Plug	Polarization	Vertical

If you need more information, please feel free and don’t hesitate to contact us.

AM017 GSM Quad-Band Antenna Magnetic Mount

Wellshow — Tue, 17 May 2011 06:11:49 +0000

The frequency of the GSM magnetic mount antenna is 900/1800/850/1900MHz (quad band). This GSM magnetic mount antenna terminates with RG174 and RF coaxial connectors.
This GSM quad band magnetic antenna is 103mm long and has 32mm base. It is for external use to reinforce cellular signal to have good RF signal receiving and transmission. This GSM antenna can be customized per customer’s different request for RF connector. Feel free to let us know your need and get the best service. If you are interested in glass mount or screw mount antenna, we also have them. Please link our main Antenna webpage to get more choices.

Dimension

AM017 Antenna Dimension

Specification

Mechanical		Electrical
Antenna	ABS (Black)	Frequency Range	850/900/1800/1900 MHz
Operating Temperature	-10°C~+75°C	Impedance	50 Ω
Storage Temperature	-10°C~+75°C	VSWR	2.0 Max
Connector Type	SMA / FME / Any per request	Gain	2.0 dBi
Cabel Type	RG174	Directional	Omni
Cable Length	3M / 5M	Polarization	Vertical

If you need more information, please feel free and don’t hesitate to contact us.

BT3002 Coaxial Cable 75ohm

Wellshow — Mon, 12 Apr 2010 14:39:54 +0000

BT3002 is a coaxial cable with a 75ohm solid center core (1×0.31mm) and a double briad shield with a white PVC Jacket. The outer diameter is 3.55mm.

BT3002 coaxial cable is commonly used for interconnection of data or telecoms equipment with 75ohm connector like SMB RF connector, 1.0/2.3 RF connector, 1.6/5.6 RF connector.

Cable Construction

	Conductor (A)	Insulation (B)	1^st Shield (C)	2^st Shield (D)	Jacket (E)
Diameter	0.31 mm	1.95 mm			3.55 mm
Material	Solid Copper Wire	LDPE	Copper Wire Coverage: 75%	Copper Wire Coverage: 85%	PVC

Specification

Impedance: 75 +/-4 Ω
Capacitance: Nom. 66 pF/m
Shield Coverage: 1^st Shield Coverage Min. 75%; 2^st Shield Coverage Min. 85%
Conductor: Solid Copper Wire (1×0.31mm)

More information about cable Attenuation, Diameter and Electrical properties. Please refer to Cable Specification.

BT2003 Coaxial Cable 75ohm

Wellshow — Mon, 12 Apr 2010 14:34:08 +0000

BT2003 RF coaxial cable Spec. and Datasheet, 75ohm for CCTV, Radio and Telecommunication, BT2003 RF Cable Assembly, 3GHz frequency, Dual and Double shielding(Braided wire), Cable Attenuation

BT2003 is a coaxial cable with a 75ohm solid center core (1×0.61mm) and a double briad shield with a white PVC Jacket. The outer diameter is 6.7mm. BT2003 coaxial cable is commonly used for interconnection of data or telecoms equipment with 75ohm connector like 1.0/2.3 RF connector, 1.6/5.6 RF connector, SMB RF connector.

Cable Construction

	Conductor (A)	Insulation (B)	1^st Shield (C)	2^st Shield (D)	Jacket (E)
Diameter	0.61 mm	3.7 mm			6.7 mm
Material	Solid Copper Wire	LDPE	Copper Wire Coverage: 75%	Copper Wire Coverage: 85%	PVC

Specification

Impedance: 75 +/-4 Ω
Conductor Resistance: Max. 59 ohm/km
Conductor: Solid Copper Wire (1×0.61mm)
Bend Raidus: 4 x 6.7mm

More information about BT2003 75ohm coax cable Attenuation, Diameter and Electrical properties. Please refer to Cable Specification.

What’s surface treatment?

Wellshow — Mon, 12 Apr 2010 14:23:47 +0000

A proper surface treatment for formed workpiece can improve surface looking, protection and physical characteristic like higher harness, anti-corrosion or smooth surface.

The surface treatment can be sorted with six categories:

A. Mechanic treatment: Bead Blasting, Cutting, Polishing, Grinding
B. Metallurgic treatment: Heat treatment (Annealing, Tempering, Quenching)
C. Chemical treatment: Electrolyzed Polishing, Acid Pickling
D. Surface Coating: Electro Plating, Sputter, Evapora
E. Inorganic Coating: Hard Anodizing, Oxide, Conversion Coating
F. Organic Coating

Bead Blasting

Bead blasting is the process of removing surface deposits by applying fine metal beads at a low pressure without damaging the surface.

To have Bead blasting metal surface, the surface isn’t easy to get scratch. The common surface treatments include anodize or electro plating after bead blasting.

Polishing

Polishing is the process of creating a smooth and shiny surface by rubbing it or using a chemical action.

To magnify the unpolished surface thousands of times, the surface looks like mountains and valleys. With repeated abrasion, the surface will be more flat like small hills.

Grinding

Grinding is an abrasion process to remove sharp edges and de-burrs.

Bench Grinder has rotating abrasive wheels and it is used for shaping tool bits or various tools that need to be made or repaired. Bench grinders are manually operated.

Vibration Grinder is designed with tumble principle. Placing workpieces inside Vibration Grinder together with fine ceramic bead or metal tiny parts which hardness must be higher than workpieces, then sharp edges and burrs can be abrasive after repeated tumbles.

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RF Connector – TNC Connector Introduction

Wellshow — Thu, 08 Apr 2010 09:12:35 +0000

TNC connector is a threaded version of BNC connector, and the thread is 7/16”-28. With a medium size compared with SMA connector and N connector, TNC connector is commonly used in military radio telecommunication system.

Most TNC connectors are the 50 ohm type, but 75 ohm TNC connector also is available to join with 75ohm coaxial cable like RG6, RG59, RG179.

RP (Reverse Polarity) TNC is a variation of the TNC specification which reverses the polarity of the interface. This is usually achieved by incorporating the female contacts normally found in jacks into the plug, and the male contacts normally found in plugs into the jack. RP TNC connectors are widely used by WiFi or 2.4G WLAN equipment manufacturers.

Mechanical Feature:

TNC male

Inner thread of 7/16-28UNEF-2B on coupling nut, Inner diameter is from 10.135mm to 10.337mm
Male center contact
Silicon Rubber O-ring inside
Insulator nestles up throughout against outer contact, and an air gap between center contact and insulator for 50 ohm TNC male
Reduced insulator in mating end, and an air gap between center and outer contacts for 75ohm TNC male

TNC female

Outer thread of 7/16-28UNEF-2B with O.D. from 10.919~11.084mm for mating
Female center contact
Insulator surrounds female center contact wholly for 50 ohm TNC female
Part of female center contact doesn’t be surrounded by insulator and an air gap between center contact and outer contact for 75 ohm TNC female

How to judge TNC connectors’ feature from outline:

TNC connector Male (Plug)

TNC plug has inner thread on coupling nut, and silicon rubber O-ring between coupling but and outer contact. The outer diameter of TNC male normally is about 14.5mm

TNC male connector, 50 ohm V.S. 75 ohm

TNC connector Female (Jack)

TNC female has outer thread with diameter about 11mm.

BNC female connector, 50 ohm V.S. 75 ohm

TNC connector right angle type:

TNC connector right angle type

The cable entry way or PCB terminated way is at 90 degrees against coupling way.

TNC connector straight type:

TNC connector straight type

The cable entry way and PCB terminated way is in horizontal to coupling way.

TNC connector female/ jack bulkhead type:

TNC female connector has about 6.5mm length outer thread for mating with TNC male. When the exposed outer thread is much longer than 6.5mm or there is another thread on TNC body, we define it is bulkhead type for mounting onto panel with washer and nut.
1) Rear mount type bulkhead

TNC connector Rear mount type bulkhead

TNC connector rear mount bulkhead type goes through the panel mounting hole toward the external of device from the internal, and mount it with washer and nut from outside.

2) Front mount type bulkhead

: TNC connector Front mount type bulkhead

TNC connector front mount bulkhead type goes through the panel hole toward the internal of device from the external, and mount it with washer and nut from inside.

TNC connector PCB connector:

TNC connector PCB connector

PCB type TNC connector normally has female body with 3.0 ~ 4.5mm legs length. legs and one contact will go through PCB vertically, and be soldered in rear side of PC board.

TNC connector female/ jack SMT type

SMT means surface mounting technology and is common used for tiny parts soldering. TNC connector has enough size to be operated by manual, so there is no TNC connector designed for SMT so far.

TNC connector cable connector:

TNC connector cable connector

TNC male and TNC female connector are commonly terminated with coaxial cable. The applicable coax cable diameter is from 0.81 to 6.1mm. TNC cable is popular antenna cable.

RF Connector – SMC Connector Introduction

Wellshow — Thu, 08 Apr 2010 09:12:01 +0000

SMC connector is one kind of coaxial RF connectors which has same interface dimension as SMB connector, but SMC has thread mating design.

SMC connectors also are available either in 50ohm or 75ohm impedance. 50ohm SMB connectors usually was specified up to 4GHz, and 75ohm SMB connectors are specified for only 2GHz.

SMC connectors are designed originally with female contact in male body or male contact in female body. SMC connector especially is suitable for mobile applications with low VSWR.

Mechanical Feature:

SMC male

Inner thread of 10-32UNF-2B inside coupling nut with 3.952 to 4.165mm inner diameter
Female center contact
Insulator surrounds female center contact wholly for 50ohm SMC male

SMC female

Outer thread of 10-32UNF-2A on body with 4.651 to 4.803mm outer diameter
Male center contact
Insulator nestles up throughout against outer contact. An air gap between insulator and male center contact for 50ohm SMC female

How to judge SMC connectors’ feature from outline:

SMC connector Male (Plug)

SMC Connector Male (Plug)

The coupling nut has thread inside and the inner diameter is around 4mm.

SMC connector Female (Jack)

There is a smooth area of dia. 3.65mm, and 3.0mm length before SMC female outer thread.

SMC connector right angle type:

SMC connector right angle type

The cable entry way or PCB terminated way is at 90 degrees against coupling way.

SMC connector straight type:

SMC connector straight type

The cable entry way or PCB terminated way is at 180 degrees to coupling way.

SMC connector female/ jack bulkhead type:

When thread length is much longer than 3.5mm, the spared thread will be for mounting on panel with washer and nut. And this type can be defined the SMC connector is bulkhead type.
1) Rear mount type bulkhead

SMC connector Rear mount type bulkhead

SMC connector bulkhead type goes through the panel mounting hole toward the external of device from the internal, and mount it with washer and nut from outside.

2) Front mount type bulkhead

SMC connector Front mount type bulkhead

SMC connector bulkhead type goes through the panel hole toward the internal of device from the external, and mount it with washer and nut from inside.

SMC connector PCB connector:

SMC connector PCB connector

PCB type SMC connector normally has 2.9mm or 3.9mm leg lengths. Four legs and one conductor will go through PCB vertically, and be soldered in rear side of PC board.

SMC connector edge mount (end launch)

SMC female/ jack edge mount (end launch)

SMC edge mount type connector will be mounted with the PCB from board’s edge side

SMC connector cable connector:

SMC connector cable connector

SMC connector will be terminated with RF coaxial cable by crimping, soldering or clamping to be SMC cable or SMC pigtail for RF signal transmission.

RF Connector – SMB Connector Introduction

Wellshow — Thu, 08 Apr 2010 09:11:24 +0000

SMB connector is one kind of coaxial RF connectors which have smaller size than SMA connector and were designed in 1960’s with snap-on coupling. The snap-on design permits rapid connection and disconnection in limited spaces.

SMB connectors are available either in 50ohm or 75ohm impedance. 50ohm SMB connectors usually was specified up to 4GHz, and 75ohm SMB connectors are specified for only 2GHz.

SMB connectors are designed originally with female contact in male body or male contact in female body. These connectors are popularly used in telecommunication and automotive.

Mechanical Feature:

SMB male

Snap-on coupling
Six slots radically spaced outer contact inside shell
Shell is fixed and can’t be rotated.
Female center contact
Insulator surrounds female center contact wholly for 50ohm SMC male
An air gap between female center contact and outer contact for 75ohm SMB male

SMB female

Snap-on coupling
A trough for mating captive after a smooth area of dia. 3.7mm, 3.0mm length from mating end
Male center contact
Insulator nestles up throughout against outer contact. An air gap between insulator and male center contact for 50ohm SMB female
Reducing insulator amount. An air gap between male center contact and outer contact for 75ohm SMB connector

How to judge SMB connectors’ feature from outline:

SMB connector Male (Plug)

SMB male’s diameter is around 6.5mm, and an outer contact with 6 slots radically spaced inside the shell.

SMB male connector, 50 ohm V.S. 75 ohm

SMB connector Female (Jack)

A significant trough (groove) for mating purpose, and has around 3.70mm diameter.

SMB female connector, 50 ohm V.S. 75 ohm

SMB connector right angle type:

SMB connector right angle type

The cable entry way or PCB terminated way is at 90 degrees against coupling way.

SMB connector straight type:

SMB connector straight type

The cable entry way or PCB terminated way is at 180 degrees to coupling way.

SMB connector female/ jack bulkhead type:

Besides mating trough, there is an outer thread on body, then we can define this SMB connector is bulkhead type.
1) Rear mount type bulkhead

SMB connector Rear mount type bulkhead

SMB connector bulkhead type goes through the panel mounting hole toward the external of device from the internal, and mount it with washer and nut from outside.

2) Front mount type bulkhead

SMB connector Front mount type bulkhead

SMB connector bulkhead type goes through the panel hole toward the internal of device from the external, and mount it with washer and nut from inside.

SMB connector PCB connector:

SMB connector PCB connector

PCB type SMB connector normally has 2.9mm or 3.9mm leg lengths. Four legs and one conductor will go through PCB vertically, and be soldered in rear side of PC board.

SMB connector edge mount (end launch)

SMB edge mount type connector will be mounted with the PCB from board’s edge side

SMB connector cable connector:

SMB connector cable connector

SMB connector will be terminated with RF coaxial cable by crimping, soldering or clamping to be SMB cable for RF signal transmission.

RF Connector – RP TNC Connector Introduction

Wellshow — Thu, 08 Apr 2010 09:10:44 +0000

RP(Reverse Polarity) is a variation of the TNC specification which reverses the polarity of the interface. This is usually achieved by incorporating the female contacts normally found in jacks into the plug, and the male contacts normally found in plugs into the jack.

RP TNC connectors, RP TNC adaptor, RP TNC cable are widely used by WiFi or 2.4G WLAN equipment manufacturers.

Mechanical Feature:

RP TNC male

Inner thread of 7/16-28UNEF-2B on coupling nut, Inner diameter is from 10.135mm to 10.337mm
Female center contact
Silicon Rubber O-ring inside
Insulator nestles up throughout against outer contact, and an air gap between center contact and insulator for 50 ohm RP TNC male

RP TNC female

Outer thread of 7/16-28UNEF-2B with O.D. from 10.919~11.084mm for mating
Male center contact
Insulator surrounds female center contact wholly for 50 ohm TNC female

How to judge RP TNC connectors’ feature from outline:

RP TNC connector Male (Plug)

TNC plug has inner thread on coupling nut with female center contact, and silicon rubber O-ring between coupling but and outer contact. The outer diameter of RP TNC male normally is about 14.5mm. Insulator nestles up throughout against outer contact, and an air gap between center contact and insulator.

RP TNC connector Female (Jack)

RP TNC female has outer thread with diameter about 11mm and male center contact. The insulator surrounds male center contact wholly.

RP TNC connector right angle type:

RP TNC connector right angle type

The cable entry way or PCB terminated way is at 90 degrees against coupling way.

RP TNC connector straight type:

RP TNC connector straight type

The cable entry way and PCB terminated way is at 180 degrees to coupling way.

RP TNC connector female/ jack bulkhead type:

RP TNC female connector has about 6.5mm length outer thread for mating with RP TNC male When the exposed outer thread is much longer than 6.5mm or there is another thread on body, we define it is bulkhead type for mounting onto panel with washer and nut.
1) Rear mount type bulkhead

RP TNC connector Rear mount type bulkhead

RP TNC connector rear mount bulkhead type will go through the panel mounting hole toward the external of device from the internal, and mount it with washer and nut from outside.

2) Front mount type bulkhead

RP TNC connector Front mount type bulkhead

RP TNC connector front mount bulkhead type will go through the panel hole toward the internal of device from the external, and mount it with washer and nut from inside.

RP TNC connector PCB connector:

RP TNC connector PCB connector

PCB type RP TNC connector normally has female body with 3.0 ~ 4.5mm legs length. legs and one contact will go through PCB vertically, and be soldered in rear side of PC board.

RP TNC connector cable connector:

RP TNC connector cable connector

RP TNC male and RP TNC female connector are commonly terminated with coaxial cable. The applicable coax cable diameter is from 0.81 to 6.1mm. RP TNC cable is popular WiFi or WLAN antenna cable.