1N935B-1

Single Zener Diodes Overview

The 1N935B-1 is a temperature compensated Zener reference diode manufactured by Microchip Technology. It provides a nominal voltage of 9.0 V with a tolerance of +/- 5%. The device operates at a test current of 7.5 mA and features a low temperature coefficient as low as 0.001 %/°C for minimal voltage change with temperature. It utilizes glass axial-leaded DO-35 packaging and supports military qualifications including JAN, JANTX, JANTXV, and JANS per MIL-PRF-19500/156.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage variation across operating ranges
• Internal metallurgical bond and double plug construction for structural integrity
• Qualified under MIL-PRF-19500/156 for JAN, JANTX, JANTXV, and JANS levels

Single Zener Diodes Applications

• Precision voltage reference circuits requiring high stability
• Military aerospace systems demanding qualified components
• Temperature sensitive instrumentation applications

Single Zener Diodes Procurement Notes

Verify the specific qualification level required, such as JAN, JANTX, JANTXV, or JANS, as these affect availability and compliance. Confirm RoHS status if commercial grade is needed, noting that military versions may not be compliant. Ensure the DO-35 package matches the board layout requirements. Cross-reference datasheets to confirm the exact temperature coefficient specifications for the selected variant.

Single Zener Diodes Selection Notes

Select this component when a stable 9.0 V reference is necessary in environments with significant thermal fluctuations. The choice depends on the required reliability tier, ranging from commercial to JANS space-grade. Consider the through-hole DO-35 form factor against available PCB real estate. Evaluate the 7.5 mA test current requirement against the circuit's power budget constraints.

Single Zener Diodes Part Context

This part belongs to the 1N935B-1 through 1N938B-1 series of Zero-TC reference diodes. These devices share similar construction methods and nominal voltage characteristics but differ in specific temperature coefficients. The series is designed to replace older standard Zener diodes where precision and thermal stability are critical performance factors.

Single Zener Diodes Replacement Considerations

Direct substitutes include other parts within the 1N935B-1 through 1N938B-1 series. Verify equivalent military qualifications if replacing in existing certified designs. Check for compatible DO-35 packages from other manufacturers only if electrical parameters match exactly.