JST Connectors

Commonly used for battery and board-to-board connections.


 30 April 2024   |     1 minute read   |   By Kevin McAleer   |   Share this article on

The Three Types of Electrical Connectors

Electrical connectors are classified into three types based on their termination ends:

  • Board-to-board connectors
  • Cable/wire-to-cable/wire connectors
  • Cable/wire-to-board connectors

What are JST Connectors?

JST connectors are electrical connectors manufactured to the design standards originally developed by J.S.T. Mfg. Co. The name JST is an acronym of Japan Solderless Terminal.

JST connectors com in several series (families) and pitches (pin-to-pin distance).


Description

Small and reliable, commonly used for battery and board-to-board connections.

The Micro:bit has a JST-PH connector for power.


Wire to Board connectors

JST Series Pitch Current Rating Voltage Rating Wire size Datasheet
VH 3.96mm 10A 250V 22-16 AWG Datasheet
RE 2.54mm 2A 250V 30-24 AWG Datasheet
EH 2.5mm 3A 250V 32-22 AWG Datasheet
XA 2.5mm 3A 250V 30-20 AWG Datasheet
XH 2.5mm 3A 250V 30-22 AWG Datasheet
PA 2.0mm 3A 250V 28-22 AWG Datasheet
PH 2.0mm 2A 100V 32-24 AWG Datasheet
ZH 1.5mm 2A 50V 32-26 AWG Datasheet
GH 1.25mm 1A 50V 30-26 AWG Datasheet
SH 1.0mm 1A 50V 32-28 AWG Datasheet

Wire to wire connectors

JST Series Pitch Current Rating Voltage Rating Wire size Datasheet
RCY 2.5mm 3A 250V 28-22 AWG Datasheet
SM 2.5mm 3A 250V 28-22 AWG Datasheet

Conventions

Typically used in compact devices.


Pros and Cons

Compact and dependable but require specific tools for assembly.