Overview

The document details the PMS series modular sockets designed for power semiconductor packages. These sockets support various package designs with flexible layout options and feature Kelvin contact types and high-temperature variants.

Key Features

• Flexible placement for different package layouts.
• Kelvin contact type for precise electrical measurement.
• High temperature versions available, supporting up to 220°C.

Product Variants and Specifications

The series includes multiple socket models differentiated by pitch and application:

• PMS-5400P-S: Minimum arrangement pitch 5.4mm, suitable for power transistors and SIP packages.
• PMS-2540P-D: Minimum pitch 5.08mm, designed for Intelligent Power Modules (IPM).
• PMS-4000P-S: Minimum pitch 4.0mm, for TO-247 (4pin) packages.
• PMS-1778P-S: Minimum pitch 1.778mm, for fine pitch applications.

Material and Durability

• Housing: Thermoplastic.
• Contact: Copper alloy with gold plating over nickel.
• Durability: Minimum 10,000 cycles.
• Contact resistance: Maximum 20mΩ.
• Operating temperature range: Standard (-55 to +175°C), High Temperature (HT) type (-55 to +220°C).

Mechanical and Electrical Parameters

Each socket type specifies acceptable lead sizes (width, thickness, length), contact point dimensions, and PCB mounting layouts. For example, PMS-5400P-S accepts leads up to 4.0mm width and 0.3-1.0mm thickness with a minimum length of 3.0mm.

PCB layouts are provided with precise hole diameters and spacing to accommodate guide pins and screws (M1.6, M2, etc.). Clearance holes for leads are necessary.

Thermal Performance

Reference T-rise (temperature rise) vs. current charts are included for each socket type, indicating thermal limits and current carrying capacity. High temperature versions show improved thermal tolerance.

Usage Examples and Layouts

Examples demonstrate socket arrangements for various power semiconductor packages such as TO-247, TO-3P, TO-220, TO-264, and IPM modules. The document provides recommended quantities and combinations of socket types for different package pin counts (e.g., 8pin, 12pin).

Ordering Information

Ordering format includes the product number and quantity, e.g., PMS-5400P-S 3pcs. Nuts and screws are not included and must be sourced separately.

Additional Notes

• Custom substrate design and manufacturing services are available upon request.
• PCB layouts for each socket type are detailed on referenced pages (2L1 - 2L2).

Summary

The PMS series modular sockets provide versatile, durable, and thermally robust solutions for mounting power semiconductor devices. Their modularity and range of pitches accommodate various package types and layouts, with high temperature options for demanding applications. Detailed mechanical, electrical, and thermal specifications support precise design and integration into power electronics systems.