1N4948-TP

Overview

The MCC 1N4948-TP is a 1 Amp fast recovery rectifier diode housed in the DO-41 axial leaded package. It features a maximum repetitive peak reverse voltage of 1000V and a maximum RMS voltage of 700V. The device supports an average forward rectified current of 1.0A at 55°C ambient temperature, with a peak forward surge current capability of 25A for half-sine pulses lasting 8.3ms. Electrical characteristics include a maximum instantaneous forward voltage of 1.3V at 1.0A, a maximum DC reverse current of 5.0μA at rated blocking voltage (25°C), and a maximum reverse recovery time of 500ns. Typical junction capacitance is 15pF measured at 1.0MHz and 4.0V reverse bias.

Feature Summary

• Fast switching performance with low leakage current suitable for high-efficiency applications
• High thermal stability with operating temperatures ranging from -55°C to +150°C
• Robust mechanical construction with epoxy meeting UL 94 V-0 flammability rating
• Lead-free finish compliant with RoHS standards

Applications

• General-purpose rectification in power supplies
• High-voltage AC-to-DC conversion circuits
• Industrial control systems requiring robust signal diodes

Procurement Notes

Verify the specific ordering suffix when purchasing. The standard part number includes the -TP designation for tape and reel packaging containing 5,000 pieces per reel. For halogen-free variants, confirm the addition of the -HF suffix to the base part number. Ensure procurement channels are authorized distributors to guarantee genuine components with full traceability and compliance with quality standards.

Selection Notes

Select this component for applications requiring high reverse voltage blocking capabilities up to 1000V combined with a 1A continuous forward current rating. The 500ns reverse recovery time makes it appropriate for general-purpose rectification where moderate switching speeds are sufficient. Consider the DO-41 package constraints for board layout and verify that the thermal resistance of 50°C/W aligns with the system's heat dissipation requirements.

Part Context

This component belongs to the 1N4942 through 1N4948 series of fast recovery rectifiers manufactured by Micro Commercial Components. All devices in this family share identical physical dimensions, thermal ratings, and current handling capabilities, differing only in their maximum repetitive peak reverse voltage ratings which range from 200V to 1000V.

Replacement Considerations

Direct replacements must match the 1000V reverse voltage, 1A forward current, and DO-41 package form factor. Verify that substitute parts meet or exceed the 500ns reverse recovery time specification. Cross-reference datasheets to ensure equivalent thermal resistance and surge current ratings before implementation.