The Mini B signal connector series is an overmolded connector used by many e-mobility manufacturers for various throttle, e-brake, PAS sensor and light connectors. Compatible versions of this connector are made among others by Julet, HIGO and Cusmade. These connectors are not available as solderable inline connectors that anyone can install. They come as prefabricated harnesses in the OEM line, which limits their use in DIY projects.

While the waterproofing makes the contact reliable, there is no way to measure the voltage on the pins when the system is connected for diagnostic purposes. If a pin breaks off due to the connectors being pressed together incorrectly, there is no way to repair it.


Product specifications may vary slightly from manufacturer to manufacturer.

Therefore, I have collected the minimum requirements here. You should not exhaust them to the maximum.

Characteristic Value
Rated Voltage 48 V AC/DC
Rated Current 2 A
Withstanding Voltage 500 V
Insulation Resistance ≥20 MΩ
Contact Resistance ≤10 mΩ
Mating Type Insertion Force 80 N max., Extraction Force 30 N min.
Mating Cycles 200x
Operation Temperature -25 ℃ ~ +80 ℃
Protection Degree IP67
Max Outer Wire Diameter 9 mm
Mating Length 62 mm
Contact Material Copper alloy plated with gold
Wire Section 0.14 mm² / 0.20 mm²


Mini B Connector Pinout
Mini B Connector Pinout


Mini B Connector Dimensions
Mini B Connector Dimensions