1N4933-AP

Overview

The 1N4933-AP is a silicon fast recovery rectifier diode manufactured by Micro Commercial Components (MCC). It features a maximum average forward current of 1.0A and a maximum repetitive peak reverse voltage of 50V. The device exhibits a maximum instantaneous forward voltage of 1.3V at 1.0A, with a typical junction capacitance of 15pF measured at 1.0MHz. Electrical characteristics include a maximum reverse recovery time of 200ns and a peak forward surge current rating of 30A for an 8.3ms half-sine pulse. The component operates within a temperature range of -55°C to +150°C.

Feature Summary

• Fast switching capability designed for high efficiency applications
• Low leakage current performance across operating temperatures
• Glass passivated junction construction for enhanced reliability
• Lead-free finish compliant with RoHS directives

Applications

• High frequency rectification circuits
• Free-wheeling diodes in power supplies
• General purpose rectification in consumer electronics

Procurement Notes

Verify the specific ordering suffix to confirm packaging type, as the AP designation indicates Ammo Packing containing 5,000 pieces per box. Ensure compliance requirements match project needs, noting that halogen-free versions require the additional HF suffix. Confirm authenticity through authorized distributors to avoid counterfeit components. Check datasheet revision dates for updated electrical parameters before finalizing procurement specifications.

Selection Notes

Select this component when a 50V blocking voltage and 1A continuous current rating are required. The fast recovery characteristic makes it suitable for higher frequency applications compared to standard rectifiers. Consider thermal derating curves if ambient temperatures exceed 55°C. Verify package compatibility with existing PCB footprints, as the DO-41 axial leaded format dictates mounting orientation and spacing constraints.

Part Context

This part belongs to the 1N4933 through 1N4937 series of fast recovery rectifiers from MCC. The series covers voltage ratings from 50V to 600V while maintaining a consistent 1A current capacity. All devices share identical physical dimensions and thermal characteristics, allowing for design flexibility based on voltage requirements without changing mechanical layouts.

Replacement Considerations

Cross-reference with other manufacturers' 1N4933 equivalents ensuring matching 50V reverse voltage and 1A forward current ratings. Verify that substitute parts maintain comparable reverse recovery times and forward voltage drops to preserve circuit performance.