Core Specifications
Pin Count & Pitch
Standard pitch: 1.27mm. Pin count ranges from 4–100 pins.
For example, Kinghelm model KH‑1.27FH‑2X18P‑H4.3‑SMT has 2 rows × 18 pins, providing 36 connection points.
The dual‑row design achieves multi‑channel connection in a compact space and greatly improves PCB space utilization.
Key Electrical Performance
Rated current: 1A (standard).
Maximum contact resistance: ≤ 20 mΩ, ensuring low signal loss.
Insulation resistance: ≥ 1000 MΩ.
Withstanding voltage: 500V AC.
Effectively prevents leakage and signal interference for stable circuit operation.
Temperature Resistance & Flame Retardancy
Insulators are made of high‑temperature engineering plastics such as PA6T and LCP, compliant with UL94 V‑0 flame retardant standard.
Operating temperature:
Standard: -40°C to +105°C
Extended: -55°C to +125°C for some models
Withstands reflow soldering high temperatures and harsh environmental conditions.
Material & Process Design
Contact Material
Contacts are made of high‑conductivity, high‑elasticity brass or phosphor bronze.
Surface treatment: nickel under‑plating + gold or tin plating.
Minimum gold plating thickness: 1 μm; minimum nickel under‑plating thickness: 30 μm.
Ensures excellent conductivity, corrosion resistance and service life.
SMT Process Compatibility
Specially designed for surface mount technology.
Some models are equipped with a metal pick‑and‑place cover for automatic assembly equipment.
PA6T material can withstand short‑term high temperature up to 260°C, supporting synchronous processing with other SMT components for mass production.
Flexible Customization & Packaging
Customization Options
Insulator height available in multiple sizes: 2.0mm, 3.4mm, 4.4mm, 5.7mm, etc.
Optional positioning pins for higher mounting accuracy.
Pin length and contact plating specifications can be customized to fit different PCB layouts and applications.
Packaging
Available in tube or tape‑and‑reel packaging, RoHS compliant.
Suitable for automatic production lines, convenient for storage and transportation, and reduces damage during handling.
Typical Applications
This connector is usually mated with 1.27mm dual‑row pin headers for board‑to‑board signal and power transmission.
It is widely used in:
Communication equipment
Industrial control modules
Automotive electronics
Medical instruments
For example:
In portable medical monitors, it enables high‑density signal transmission between internal boards.
In industrial PLC control boards, it supports high‑component‑density design and ensures long‑term stable operation.
