1N4970US/TR

Single Zener Diodes Overview

The 1N4970US/TR is a surface-mount Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 33 V with a 5% tolerance and a maximum power dissipation of 5 W. The device operates within a temperature range of -65 °C to +175 °C. Key electrical characteristics include a test current of 40 mA, a maximum reverse leakage current of 2 uA, and a Zener impedance of 10 Ohms. It utilizes an SQ SMT package configuration.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction for high reliability
• Internal metallurgical bond for enhanced durability
• Military qualification per MIL-PRF-19500/406 standards

Single Zener Diodes Applications

• High-reliability aerospace systems
• Military electronic circuits
• Critical voltage regulation applications

Single Zener Diodes Procurement Notes

Verify the specific JAN suffix designation against official Microchip documentation to confirm military qualification level. Ensure the SQ SMT package type matches the target PCB footprint requirements. Confirm RoHS status details as indicated in the manufacturer's specification sheet prior to integration.

Single Zener Diodes Selection Notes

Select this component for designs requiring hermetically sealed surface-mount Zener regulators. The 5 W power rating supports higher current handling compared to standard MELF packages. Verify that the 33 V breakdown voltage aligns with the circuit's reference requirements and thermal management capabilities.

Single Zener Diodes Part Context

This part belongs to the 1N4970 series of Zener voltage regulators. It is designed as a surface-mount alternative to through-hole variants, maintaining similar electrical performance in a compact form factor. The series is recognized for its use in environments where component failure is not tolerated.

Single Zener Diodes Replacement Considerations

Consult official Microchip substitution guides for compatible equivalents. Verify pinout compatibility and thermal characteristics when considering cross-manufacturer alternatives.