Harwin Two Piece Spring Probe, 30° Spear Head, 33.3mm, 3A

The Harwin Two Piece Spring Probe (P25-0126) is a high-performance component designed for reliable electrical connections in testing and measurement applications. This ATE spring probe features a spear head with a 30-degree tip style for precise contact, making it ideal for accessing challenging connection points. It boasts a gold-finished probe head and body, ensuring excellent conductivity and corrosion resistance for stable, low-contact resistance over its lifespan.

Constructed with a beryllium copper plunger and a phosphor bronze shell, the probe offers superior mechanical strength and spring performance. It is engineered for a vertical connector orientation and supports a 3A current rating, suitable for various signal and power transmission tasks. The design allows for a compact 2.54mm (0.1”) minimum pitch, facilitating high-density board layouts and testing fixtures.

Key Features & Specifications

• High-Temperature Resilience: Withstands a maximum soldering temperature of 260°C for 10 seconds and operates reliably across a wide temperature range from -40°C to +180°C.
• Controlled Spring Force: Provides an initial spring force of 170g and a working travel force of 250g, ensuring consistent and reliable contact pressure.
• Compatibility: Designed for use with Harwin receptacle/sleeve types S25-346 or S25-546, enabling easy integration into existing test systems and fixtures.
• Durable Construction: The combination of gold plating and high-grade copper alloys ensures long-term durability and consistent electrical performance in demanding environments.

This spring probe is a critical component for engineers and technicians building or maintaining automated test equipment (ATE), bed-of-nails test fixtures, and programming or debugging interfaces, where dependable, repeatable connections are essential.