2N5664

Overview

The Microchip Technology 2N5664 is an NPN silicon power bipolar junction transistor (BJT) designed for general-purpose switching applications. It operates within a collector-emitter voltage of 200 V and supports a maximum continuous collector current of 5 A. The device features a collector-base voltage rating of 250 V and an emitter-base voltage limit of 6 V. With a power dissipation capacity of 2.5 W at 25°C ambient temperature, it utilizes a TO-66 metal can package. The component exhibits a minimum DC current gain of 25 and maintains operation across a temperature range from -65°C to +200°C.

Feature Summary

• Hermetically sealed metal can construction suitable for harsh environments
• High voltage blocking capability with 200 V collector-emitter rating
• Robust current handling with 5 A continuous collector current specification
• Qualified per MIL-PRF-19500/455 standards for military reliability

Applications

• Military-grade power switching circuits
• High-voltage amplifier stages
• Industrial control systems requiring radiation hardness
• Aerospace power management modules

Procurement Notes

Verify the specific qualification level (JAN, JANTX, or JANTV) required for your application, as these suffixes denote different reliability tiers under MIL-PRF-19500/455. Confirm that the TO-66 package dimensions match your thermal and mechanical constraints. Ensure that the manufacturer's datasheet is consulted for derating curves, as power dissipation decreases significantly above 25°C ambient temperature. Validate that the hermetic seal integrity meets your environmental protection requirements.

Selection Notes

Select this component when high voltage isolation and moderate current switching are required in a ruggedized form factor. Compare against the 2N5665 and 2N5666 variants if higher voltage or current ratings are needed. Consider the thermal resistance characteristics of the TO-66 package for heat sink design. Verify compatibility with existing circuit layouts due to the through-hole mounting style and pin configuration.

Part Context

The 2N5664 belongs to a family of NPN power transistors manufactured by Microchip Technology, formerly Microsemi. This series includes related parts such as the 2N5665 and 2N5667, which offer varying voltage and current specifications. These devices are commonly used in defense and aerospace electronics where reliability under extreme conditions is critical. The TO-66 package provides a standardized footprint for easy integration into legacy and modern military hardware designs.

Replacement Considerations

Direct substitutes include the 2N5665 and 2N5666, though their electrical ratings differ. Verify pinout compatibility and thermal performance before substitution. Cross-reference with other manufacturers' equivalents only if they meet the same MIL-PRF-19500/455 qualification standards.