1N4944GP-TP

Overview

The MCC 1N4944GP-TP is a glass passivated junction rectifier designed for general-purpose applications. It features an average forward current of 1.0 A and a maximum repetitive peak reverse voltage of 400 V. The device exhibits low leakage current and fast switching characteristics, with a maximum instantaneous forward voltage of 1.3 V at 1.0 A. It supports a peak forward surge current of 30 A for an 8.3 ms half-sine wave. Operating and storage temperature ranges extend from -55°C to +150°C.

Feature Summary

• Glass passivated junction construction
• Low leakage current and fast switching performance
• Epoxy meets UL 94 V-0 flammability rating

Applications

• General purpose rectification in resistive or inductive loads
• Power supply circuits requiring fast recovery
• Reverse polarity protection

Procurement Notes

Verify the component authenticity by checking markings against official datasheet specifications. Confirm the suffix indicates RoHS compliance. Ensure the supplier is an authorized distributor to avoid counterfeit parts. Check for the NRND status which may impact long-term availability. Validate packaging details match project requirements.

Selection Notes

Select this component for circuits requiring 400 V reverse blocking capability and 1 A continuous current handling. Consider the DO-41 package dimensions for board layout. Evaluate thermal resistance limits under high ambient temperatures. Compare surge current ratings against expected transient conditions. Verify compatibility with lead-free soldering processes.

Part Context

This part belongs to the 1N4942GP through 1N4948GP series of fast recovery rectifiers manufactured by Micro Commercial Components. The series shares common electrical characteristics such as 1.0 A average forward current and glass passivation, differentiated primarily by their peak reverse voltage ratings. The 1N4944GP specifically provides a 400 V rating within this lineup.

Replacement Considerations

Direct substitutes include other 1N4944 variants from different manufacturers meeting identical electrical specifications. Cross-reference packages like DO-41 equivalents. Verify that replacement parts maintain the same glass passivation and fast recovery traits. Ensure thermal and mechanical parameters align with existing designs.