1N4758G

Overview

The Taiwan Semiconductor 1N4758G is a hermetically sealed glass Zener diode with a nominal voltage of 56V and ±5% tolerance. It operates in the DO-41 through-hole package, dissipating up to 1W at 25°C. Key electrical parameters include a test current of 4.5mA, maximum dynamic impedance of 110Ω, and leakage current of 5µA at 42.6V reverse bias. The junction temperature range spans from -65°C to +200°C.

Feature Summary

• Hermetically sealed glass compression bonded construction
• Corrosion resistant external surfaces
• Pure tin plated leads for solderability

Applications

• Low voltage stabilizers or voltage references
• Adapters
• Lighting application
• On-board DC/DC converter

Procurement Notes

Verify the specific ordering suffix (e.g., R0G for reel, A0G for ammo box) against project requirements. Confirm RoHS compliance status and lead finish specifications directly with the manufacturer or authorized distributor before finalizing procurement orders.

Selection Notes

Select this component for applications requiring high reliability due to its hermetic sealing. Ensure the operating environment stays within the specified thermal limits. Verify that the required Zener voltage and power dissipation align with the circuit design constraints.

Part Context

This device belongs to the 1N4728G–1N4758G series, covering a wide Zener voltage range from 3.3V to 56V. All members share the same DO-41 mechanical footprint and hermetic glass construction, differing primarily in their specific breakdown voltage ratings.

Replacement Considerations

Cross-reference with other manufacturers' 1N4758 equivalents. Verify matching DO-41 package dimensions, 1W power rating, and 56V Zener voltage tolerance to ensure functional interchangeability.

FAQ

What is the maximum junction temperature?

The maximum junction temperature is 200°C.

How is polarity indicated on the package?

Polarity is indicated by the cathode band on the device body.