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Product Detailed Parameters
- Description：TRANS PNP 250V 2A TO66
- Series：-
- Mfr：Microchip Technology
- Package：Bulk
- Transistor Type：PNP
- Current - Collector (Ic) (Max)：2:00 AM
- Voltage - Collector Emitter Breakdown (Max)：250 V
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：-
- Power - Max：35 W
- Frequency - Transition：-
- Operating Temperature：-
- Mounting Type：Through Hole
- Package / Case：TO-213AA, TO-66-2
- Supplier Device Package：TO-66 (TO-213AA)
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Overview
The Microchip Technology 2N6421 is a silicon PNP power transistor designed for high-voltage applications. It features a collector-emitter breakdown voltage of 250V and a continuous collector current rating of 2A. The device utilizes a hermetically sealed metal TO-66 package, ensuring reliability in demanding environments. Key electrical characteristics include a transition frequency of 10 MHz and specified forward current transfer ratios suitable for medium-power switching and amplification tasks.
Feature Summary
- Hermetically sealed metal TO-66 package construction
- High voltage capability with 250V collector-emitter breakdown
- Medium-power handling with 2A continuous collector current
Applications
- High-voltage power switching circuits
- Complementary medium-power amplifier stages
- Industrial control systems requiring robust bipolar transistors
Procurement Notes
Verify the manufacturer source carefully, as the 2N6421 is a generic military-style part number historically produced by multiple vendors including Texas Instruments, Boca Semiconductor, and Littlediode. Confirm that the specific unit supplied matches the required hermetic sealing and TO-66 pinout specifications. Ensure compliance with relevant environmental standards such as RoHS if applicable to your supply chain requirements.
Selection Notes
Select this component when a high-voltage PNP transistor with hermetic sealing is required. Compare its 250V V(BR)CEO and 2A I(C) ratings against circuit demands. Consider the TO-66 package size for thermal management and mounting constraints. Verify compatibility with complementary NPN devices like the 2N6420 or 2N6422 if push-pull configurations are needed.
Part Context
The 2N6421 belongs to a family of silicon PNP power transistors often used in ruggedized electronics. It is frequently paired with complementary NPN counterparts for balanced performance in linear and switching applications. The hermetic metal case distinguishes it from standard plastic-packaged equivalents, targeting aerospace, military, and high-reliability industrial sectors.
Replacement Considerations
Direct substitutes include the 2N6420 (complementary NPN), 2N6422, and 2N6423 from various manufacturers. Generic equivalents may be sourced from Boca Semiconductor or Littlediode, provided they meet the TO-66 form factor and electrical specifications.
