1N4594R

Overview

The GeneSiC Semiconductor 1N4594R is a silicon standard recovery rectifier housed in a DO-8 stud mount package. It features a repetitive peak reverse voltage of 1000 V and a continuous forward current rating of 150 A at a case temperature of 25 °C. The device supports a surge non-repetitive forward current of 3000 A for half-sine wave pulses lasting 8.3 ms. Electrical characteristics include a maximum diode forward voltage of 1.5 V at 150 A and a reverse current of 4.5 mA at 110 °C. Thermal resistance from junction to case is specified at 0.35 °C/W, with an operating temperature range spanning -55 °C to 150 °C.

Feature Summary

• High surge capability designed for robust power handling
• Not sensitive to electrostatic discharge (ESD)
• Standard polarity configuration with the stud serving as the cathode

Applications

• Industrial power conversion systems
• High-current DC power supplies
• Motor drive rectification circuits

Procurement Notes

Verify the specific voltage variant required, as the 1N4594R denotes a 1000 V rating within the broader 1N4594(R) through 1N4596(R) series. Confirm terminal orientation needs; the 'R' suffix indicates reverse polarity where the stud functions as the anode rather than the cathode. Ensure mounting hardware matches the 3/8-24 UNF thread specification for proper mechanical installation and thermal contact.

Selection Notes

Select this component when designing circuits requiring high current capacity up to 150 A with moderate reverse voltage blocking capabilities around 1000 V. The low thermal resistance facilitates efficient heat dissipation in stud-mounted configurations. Consider the 1.5 V forward voltage drop for conduction loss calculations and ensure the system can accommodate the specified 3000 A surge current during transient events without exceeding the I2t fusing limit.

Part Context

This device belongs to the 1N4594(R) thru 1N4596(R) family of silicon standard recovery diodes manufactured by GeneSiC Semiconductor. The series offers varying reverse voltage ratings from 1000 V to 1400 V while maintaining consistent current and thermal performance across the lineup. All variants share the same DO-8 package dimensions and electrical characteristics except for the breakdown voltage specifications.

Replacement Considerations

Compatible substitutes within the same series include the 1N4595R and 1N4596R, which offer higher voltage ratings of 1200 V and 1400 V respectively while retaining identical current and thermal parameters.