1N4133UR/TR

Single Zener Diodes Overview

The Microchip Technology 1N4133UR/TR is a 0.5-watt glass surface mount Zener voltage regulator in the DO-213AA package. It provides an 87V nominal Zener voltage with a standard ±5% tolerance and a maximum impedance of 1000 ohms at a test current of 250 µA. The device operates within a temperature range of -65°C to +175°C, features minimal capacitance, and is hermetically sealed. The TR suffix indicates tape and reel packaging.

Single Zener Diodes Feature Summary

• Hermetically sealed glass DO-213AA surface mount package
• Internal metallurgical bond construction
• Inherently radiation hard design
• Minimal capacitance for high-frequency applications

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• Spacecraft and satellite electronics
• High-reliability military systems
• Precision reference circuits

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm exact electrical tolerances and termination finishes. Ensure the procurement specification matches the required MIL-PRF-19500/435 qualification level if applicable. Confirm that the tape and reel quantity aligns with production requirements before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a robust, radiation-hardened surface mount Zener diode is required for high-temperature stability. The 1N4133UR offers a specific 87V regulation point suitable for precision analog circuits. Consider the low noise density and tight thermal coefficient for sensitive signal processing applications where standard commercial diodes may fail under extreme conditions.

Single Zener Diodes Part Context

This part belongs to the 1N4099UR through 1N4135UR series of 0.5W glass surface mount Zeners. These devices serve as surface mount equivalents to traditional axial-leaded JEDEC registered parts. The series is designed for high reliability and includes options for tighter voltage tolerances and military qualifications via specific suffixes.

Single Zener Diodes Replacement Considerations

Direct replacements include other 1N4133 variants from different manufacturers that meet the same DO-213AA footprint and 87V specification. Verify that any substitute maintains the required radiation hardness and operating temperature range of -65°C to +175°C.