SMBA® (FAKRA)

The SMBA® 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 standardised locking system SMBA® connectors fulfil the high functional and safety requirements of today’s automotive industry.

SMBA® coaxial connectors meet the specification of DIN 72594-1 and USCAR-18.

Standard and individual solutions

1) GPS antenna

2) Engine
management system

3) Analog / Digital radio

4) Auxiliary heating

5) TV / Video-displays

6) Antenna

7) Distributor box

8) Accident data analysis

9) Cellular phone

10) Remote control
keyless entry

11) Distance control

12) Amplifier

13) Air pressure control

14) Navigation system

1) GPS antenna
2) Engine management system
3) Analog / Digital radio
4) Auxiliary heating
5) TV / Video-displays
6) Antenna
7) Distributor box

8) Accident data analysis
9) Cellular phone
10) Remote control keyless entry
11) Distance control
12) Amplifier
13) Air pressure control
14) Navigation system

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General specifications

Benefits of SMBA® connectors

Sophisticated mechanical and color coded system with 13 different codes.

Continuous strip mounted, stamped and formed center contacts ensure efficient automatic assembly.

High mounting security:
Pre-assembling locking features ensures correct position of the coaxial insert in the coded housing

High mounting security:
Secondary locking feature prevents incorrect mating

High mounting security:
Secure primary locking system between plug and jack with tactile and audible locking mechanis

High mounting security:
Protection frame and protection strip protect against accidental demating

Coaxial insert and cable can be rotated freely 360° in coded housing.

Secure secondary locking with high axial retention force of the coaxial insert in the coded housing.

Shock- and vibration-proof housing protects coaxial insert.

Cable types with fixing groove for chassis mounting.

Special shape of inner contact ensures tilt-resistant PCB mounting.

Customer-specific packaging.

Sophisticated mechanical and color coded system with 13 different codes.
Continuous strip mounted, stamped and formed center contacts ensure efficient automatic assembly.
High mounting security:

Pre-assembling locking features ensures correct position of the coaxial insert in the coded housing.
Secondary locking feature prevents incorrect mating.
Secure primary locking system between plug and jack with tactile and audible locking mechanism.
Protection frame and protection strip protect against accidental demating

Coaxial insert and cable can be rotated freely 360° in coded housing.
Secure secondary locking with high axial retention force of the coaxial insert in the coded housing.
Shock- and vibration-proof housing protects coaxial insert.
Cable types with fixing groove for chassis mounting.
Special shape of inner contact ensures tilt-resistant PCB mounting.
Customer-specific packaging.

Type identification

Coding

SMBA® connectors are equipped with a standardised coding system which permits easy and fast assembly using thirteen possible codings.

Jack	Device applications	Colour	RAL	Coding	Plug

	Analog radio without supply voltage	Black	9005	A

	Analog radio with supply voltage	Creme-white	9001	B

	GPS: telemetry or navigation	Signal-blue	5005	C

	Cellular phone	Bordeaux-violet	4004	D

	TV 1	Leaf-green	6002	E

	TV 2	Nut-brown	8011	F

	Remote control keyless entry	Blue-grey	7031	G

	GPS: telemetry and navigation	Heather-violet	4003	H

	Remote control auxiliary heating or bluetooth	Beige	1001	I

	Radio with IF output (antenna diversity)	Curry	1027	K

	Not defined	Carmine-red	3002	L

	Not defined	Pastell-orange	2003	M

	Not defined	White-green	6019	N

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Electrical characteristics

Impedance	50 Ohm
Operating frequency	DC - 6 GHz
Return loss	≥ 18 dB typ.
Insertion loss at 4 GHz	≤ 0,1 dB
Insulation resistance	≥ 1 GOhm
Contact resistance Center contact Outer contact	≤ 5,0 mOhm ≤ 2,5 mOhm
Withstand voltage	≥ 750 V
Operating voltage	≤ 335 V max.
Current carrying capacity	≤ 1,0 A DC
RF-leakage	> 55 dB

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Mechanical characteristics

Engagement force (with or without latch)	max. 25 N
Disengagement force (without latch)	min. 2 N - max. 25 N
Engagement force (with latch)	min. 100 N
Mating cycles	≥ 50
Design according to	DIN 72594, SAE / USCAR

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Environmental specification

Operating temperature range	IEC 68-2-2, -40° C up to 105° C
Temperature change	IEC 68-2-14
Vibration	IEC 68-2-64
Humidity (cyclic)	IEC 68-8-30
Shock	IEC 68-2-29-35G

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Materials

Outer contact - male - female	Brass Brass Diecast
Center contact - male - female	Brass Copper beryllium or Bronze
Spring washer	Stainless steel
Insulator	PTFE / PE / SPS
Plastic Housing	PA, optional Diecast on request
Crimp ferrule	Copper Brass
All products are RoHS conform.

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Plating

Standard plating Nickel (Ni)

Outer contact	2 µm Ni min.
Center contact	0,8 µm Au min.
Other parts	2 µm Ni min.

Alternative plating Gold (Au)

Outer contact - Standard - Adapter	0,2 µm Au min. 0,8 µm Au min.
Center contact	0,8 µm Au min.
Other parts	2 µm Ni min.

Alternative plating White bronze

Outer contact	2-4 µm White bronze
Center contact	0,8 µm Au min.
Other parts	2-4 µm White bronze

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Interface dimensions

Plug

Jack

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Some connectors may have a specification that differs from the above mentioned data.

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