Information of SM02B-GHS-TB 1.25mm Pitch Wire-to-Board Connector (Side Entry Header)

Basic Overview

• Product Type: SMT side entry header for wire-to-board connections (GH series, crimp/mating style)
• Manufacturer: JST Corporation
• Document Reference: GH Connector Datasheet (1.25mm Pitch Wire-to-Board Connectors)
• Core Function: Provides secure, high-density electrical connection between wires and printed circuit boards (PCBs) in electronic equipment, with a positive locking mechanism for reliability
• Key Features: 1.25mm contact pitch, side entry orientation (SMT mounting), secure lock mechanism with tactile clicking sensation, low insertion force, anti-contact deformation structure, anti-incorrect mating design, RoHS2 compliant, tin-plated contacts
• Key Identifiers:

Core Specifications

1. Electrical Ratings

2. Physical and Mechanical Characteristics

3. Dimensional Specifications (2-Circuit Side Entry Header)

4. Environmental Ratings

Functional Details

1. Core Functionality

• Secure Connection: Integrated lock mechanism ensures stable mating with a positive tactile click, preventing accidental disconnection in vibration-prone environments.
• Side Entry Design: Optimizes PCB space utilization by allowing horizontal (side) insertion of mating connectors, suitable for high-density layouts.
• Low Insertion Force: Facilitates easy assembly while maintaining reliable contact pressure.
• Anti-Deformation Structure: Housing design protects contacts from damage during mating/unmating or handling.
• Anti-Incorrect Mating: Structured to prevent misalignment or reverse insertion of the mating connector.

2. Compatibility

• Mating Housing: Designed to mate with GH series 2-circuit crimp housings (e.g., GHR-02V-S, natural white PBT housing).
• Crimp Contacts: Compatible with SSHL-002T-P0.2 crimp contacts (for AWG #30–#26 wires, insulation O.D. 0.76–1.0 mm).
• Wire Range: Supports conductor sizes AWG #30 (0.05 mm²) to AWG #26 (0.13 mm²) with insulation outer diameter 0.76–1.0 mm.

Packaging and Handling

1. Packaging Specifications

2. PCB Layout and Assembly

3. Crimping Equipment Compatibility

Application Guidelines

1. Typical Applications

• Internal connections in electrical/electronic equipment
• High-density layout applications (consumer electronics, industrial controls, automotive electronics)
• Battery packs, sensors, and small electronic modules requiring secure wire-to-board connections

2. Key Usage Notes

• Use only compatible GH series crimp contacts (SSHL-002T-P0.2) and housings (e.g., GHR-02V-S) for reliable mating.
• Ensure PCB pad dimensions match JST’s recommended layout to avoid soldering issues.
• Operate within specified temperature and current limits to prevent contact degradation.
• Refer to JST’s "Handling Precautions for Terminals and Connectors" (Technical Documents) before use.
• Gold-plated contact options are available by contacting JST for high-reliability applications.