1N4121-TP

Single Zener Diodes Overview

The 1N4121-TP is a 500mW silicon Zener diode manufactured by Micro Commercial Components (MCC) in the DO-35 glass package. It provides a nominal Zener voltage of 20V with a standard tolerance of ±5%. The device features double slug type construction and metallurgical bonding for reliability. Maximum ratings include a junction temperature of 175°C and a storage range from -55°C to 175°C. Electrical characteristics specify a maximum forward voltage of 1.1V at 200mA.

Single Zener Diodes Feature Summary

• Double slug type construction
• Metallurgical bonded construction
• Hermetically sealed glass DO-35 case

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• Surge protection applications

Single Zener Diodes Procurement Notes

Verify authenticity through authorized MCC distributors or direct purchase to avoid counterfeit components. Confirm the specific suffix matches the required packaging format, such as tape and reel or bulk. Ensure compliance with RoHS standards and check for lead-free finish designation. Review the manufacturer's life support policy regarding critical system usage before procurement.

Single Zener Diodes Selection Notes

Select this component based on the required 20V nominal breakdown voltage and ±5% tolerance. Verify that the 500mW power dissipation rating meets the circuit requirements at the expected ambient temperature. Consider the DO-35 package dimensions for board layout constraints. Check thermal resistance specifications if operating near the maximum junction temperature limit.

Single Zener Diodes Part Context

This part belongs to the 1N4614 through 1N4125 series of 500mW silicon Zener diodes produced by Micro Commercial Components. The series covers a wide Zener voltage range from 1.8V to 47V. All devices in this family share common mechanical data, including the hermetically sealed glass DO-35 package and double slug construction.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same MCC series include 1N4120 and 1N4122, which offer similar voltage ratings and package types. Cross-brand replacements must match the 500mW power rating, DO-35 footprint, and 20V nominal voltage specification.