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Ideal for in-vehicle infotainment, advanced driving systems, and battery applications. Supports
Compact, Heat/Vibration Resistant Board-to-Wire Connector – KM32A Series

Compact, Heat/Vibration Resistant Board-to-Wire Connector – KM32A Series

Infotainment systems (IVI) and advanced driving systems (ADAS) are constantly evolving to enhance safety, comfort, and the driving experience. As vehicles become more electric, battery density increases, demanding more advanced specifications for electronic components, all while requiring smaller sizes.

In response, Hirose Electric has introduced the KM32A Series, a compact, heat- and vibration-resistant board-to-wire connector for internal connections.

The KM32A Series meets automotive-grade standards, offering 125°C heat resistance, compatibility with 0.3 to 0.5 sq (AWG 20 to 22) cables, and high vibration resistance. It complies with the “GMW3191” standard for low-voltage connectors, making it ideal for various applications such as automotive displays, ADAS sensors and cameras, batteries, lights, and switches.

Series Page

Product Specifications

Rated Current	5A（22 AWG）
Rated Voltage	12V AC/DC
Operating Temperature Range	-40°C to +125°C (including temperature rise due to energization)
Contact Resistance	25mΩ or less
Withstand Voltage	1,000V AC for 1 minute
Insulation Resistance	1,000MΩ or more（500V DC）
Number of Insertions and Withdrawals	10 times
Insertion and Removal Force	Max. 75N

Number of Cores: 2, 3, 4, 5, 6, 7, 8, 9, 10 (straight, right-angled)
Applicable Wires: 0.3 to 0.5 sq (AWG 20 to 22 cable)
RoHS Compliant

Features

Automotive-Quality Connector with 125°C Heat and Vibration Resistance

The KM32A Series has passed rigorous automotive tests, including a thermal shock test (-40°C to 125°C, 1,000 cycles) and a combined environment test (-40°C to 125°C/10 to 1,000Hz, 3.1 Grms). Its unique contact structure ensures continuous reliability under driving vibrations.

Compact and Space-Saving Design

Compatible with 0.3 to 0.5 sq (AWG 20 to 22) cables, this small 0.5-type connector is versatile for various applications, including infotainment systems (IVI), ADAS, batteries, and lights.

Straight Type (for 2-core)

Right-Angle Type (for 2-core)

Number of Cores	2	3	4	5	6	7	8	9	10
Dimension A（mm）	7.5	9.5	11.5	13.5	15.5	17.5	19.5	21.5	23.5

Pursuing Connection Reliability and Meeting Various Automotive Standards

The design meets the GMW3191 standard for low-voltage automotive connectors and the ADM-F-0006 vibration test standard, ensuring durability in automotive conditions.

Unique Contact Structure for High Vibration Resistance

A single contact spring presses against the terminal to maintain strong vibration resistance, supporting a tensile/pry strength of up to 75N.

Comparison Table with Similar Series for Automotive Use

About Connectors

Series Name		KM32 Series	KM32A Series
Shape
Variation	Horizontal Right Angle	1 row: 2 to 8 cores 2 rows: 12 to 24 cores	1 row: 2 to 10 cores
Variation	Vertical	1 row: 2 to 10 cores 2 rows: 16 cores	1 row: 2 to 10 cores
Size (X, Y, Z, for 2-core)		8.1mm x 5.8mm x 13.35mm	8.0mm x 6.45mm x 12.4mm
Volume (for 2-core)		627mm³	639mm³
Operating Temperature Range		-40℃～+85℃	-40℃～+125℃
Connector Insertion Force		0.79kgf	0.61kgf
Insertion Force Between Terminal and Housing		0.77kgf	0.24kgf
Terminal Tensile Strength		5.53kgf	7.04kgf
Locking Strength		6.23kgf	9.53kgf
Clashing Noise		58dB	64.2dB
Conforming Wire		AWG 20（0.3 sq）	AWG 20～22（0.3～0.5 sq）

Connector Terminals

Series Name	KM32 Series	KM32A Series
Shape
Structure of Spring	Left/Right Contact Structure	Vertical Contact Structure
Size (X, Y, Z, for 2-core)	1.1mm x 1.26mm x 8.05mm	1.3mm x 1.5mm x 7.85mm
volume	11.15mm³	15.3mm³
Rated Current	3A	5A
Crimp Strength	Average 7.3kgf	Average 10.7kgf