OMSO1OST OM5O11ST Hermetic JEDEC TO-257AA High Efficiency Soft Recovery Rectifier Datasheet

Category: Diodes, Electronics, International Rectifier

Product Overview

The OMSO1OST OM5O11ST is a soft recovery rectifier designed for high efficiency in high voltage switching applications, with models for both 800V and 1000V peak inverse voltages. This component, encapsulated in a hermetic JEDEC TO-257AA package, is optimized for minimal losses in power conversion and motor control circuits. It offers a match for the switching characteristics of power MOSFETs, IGBTs, and bipolar transistors.

Key Features

The datasheet highlights several key features of the OMSO1OST OM5O11ST rectifier:

High switching efficiency due to ultra-fast and soft recovery behavior.
Low losses at high switching speeds and a low IRM rating.
Capability to handle 12 Amps of continuous current and 70 Amps of non-repetitive surge current.
Thermal resistance as low as 2.09 °C/W, maintaining performance over a wide temperature range from -55°C to +150°C.
Availability of models screened to different MIL-S-19500 standards (TX, TXV, S levels).

Maximum Ratings and Characteristics

The rectifier is specified with an absolute maximum rating for peak inverse voltage (PIV) at 800V and 1000V, and a maximum average D.C. output current of 12A at 100°C. The surge current is rated at 70A for an 8.3 nsec duration.

Electrical Characteristics

Electrical characteristics detail the forward voltage drop and reverse recovery performance:

A maximum forward voltage of 2.9V at 12A for the OMSO1OST and 2.7V for the OM5O11ST.
Maximum reverse current is spec’d at 150µA (at 8x PIV) and 4µA at higher temperatures.
Reverse recovery time (trr) is as fast as 50 nanoseconds, indicating swift turn-off times.

Turn-Off Characteristics

The turn-off characteristics define how the rectifier ceases conduction, critical for applications requiring fast switching performance. The document provides a detailed explanation of symbols and test conditions, including IF, IR, VR, and di/dt parameters, representative of typical circuit conditions.

Contact Information

For further clarification or detailed product information, Omnirel is located at 205 Crawford Street, Leominster, MA 01453 USA, with the provided contact telephone and fax numbers.