UF1J

Overview

The UF1J is a surface mount high efficiency ultra fast glass passivated rectifier manufactured by HY Electronic (Cayman) Limited. It belongs to the UF1G through UF1M series and utilizes a JEDEC SMA molded plastic case. The component provides a maximum average forward rectified current of 1.0 A at an ambient temperature of 55 °C. It features a maximum repetitive peak reverse voltage of 600 V, with corresponding RMS and DC blocking voltages of 420 V and 600 V respectively. The device exhibits a peak forward voltage of 1.3 V at 1.0 A DC and a maximum reverse recovery time of 50 ns. Typical junction capacitance is 20 pF measured at 1.0 MHz.

Feature Summary

• Ultra-fast switching capability designed for high efficiency applications
• Low reverse leakage current characteristics
• Low forward voltage drop performance
• High current capability within the specified thermal limits

Applications

• Switching Mode Power Supplies (SMPS)
• High frequency inverters
• Pulse Width Modulation (PWM) circuits
• Polarity protection applications

Procurement Notes

Verify that the ordered part matches the specific UF1J designation to ensure the correct 600 V reverse voltage rating, as this series includes variants with different voltage levels. Confirm compliance with RoHS standards and UL 94V-0 flammability ratings for the plastic material. Ensure the procurement documentation references the official datasheet revision date to validate the electrical parameters against current manufacturing specifications.

Selection Notes

Select the UF1J when a 600 V reverse voltage rating is required for high-frequency rectification tasks. This component is suitable for designs needing ultra-fast switching speeds and low reverse recovery times. Consider the SMA package constraints and the 1.0 A current limit at elevated temperatures. Derate the forward current by 20% if the application involves capacitive loads to maintain reliability.

Part Context

The UF1J is part of the UF1G through UF1M product family from HY Electronic (Cayman) Limited. This series comprises surface mount high efficiency ultra fast glass passivated rectifiers housed in JEDEC SMA packages. The components are designed for general-purpose rectification in compact electronic circuits requiring fast switching performance and reliable operation under standard industrial conditions.

Replacement Considerations

Compatible substitutes within the same series include UF1G, UF1K, and UF1M. Verify that any replacement component matches the 600 V reverse voltage requirement and the 1.0 A forward current capacity. Ensure the alternative part maintains the SMA package outline and polarity marking conventions.