1N3020B-1

Overview

The 1N3020B-1 is a 1-watt Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 10 V with a tolerance of ±5%. The device utilizes a DO-204AL (DO-41) axial through-hole package and supports an operating temperature range from -55°C to +175°C. Key electrical characteristics include a maximum Zener impedance of 7 Ohms, a forward voltage of 1.2 V at 200 mA, and a maximum reverse leakage current of 25 µA at 7.6 V.

Feature Summary

• Provides stable voltage regulation via metallurgically bonded Zener junction technology.
• Engineered for high-temperature reliability with extended operational limits up to +175°C.
• Offers low dynamic impedance for effective noise filtering in power supply circuits.

Applications

• High-reliability voltage reference circuits
• Overvoltage protection stages
• Temperature-compensated bias networks

Procurement Notes

Verify the specific suffix '-1' against official Microchip documentation to confirm compliance with MIL-PRF-19500/115 standards. Ensure the required voltage tolerance and power dissipation ratings align with the target application's thermal constraints before finalizing procurement orders.

Selection Notes

Select this component when a robust 10 V reference is needed in harsh environments. The DO-41 package suits through-hole designs requiring high thermal stability. Compare leakage current specifications against sensitive circuit requirements to ensure adequate performance margins.

Part Context

This part belongs to the 1N3020 series of 1-watt Zener diodes produced by Microchip. The series covers various voltage ratings while maintaining consistent physical dimensions and thermal characteristics suitable for industrial and military-grade applications.

Replacement Considerations

Consult official cross-reference lists for equivalents such as JANTX variants or other MIL-spec compliant 1N3020B parts. Verify pinout compatibility and thermal derating curves before substituting.