The document describes the features and characteristics of the SMAJ series TRANSILTM diodes, including peak pulse power, standoff voltage range, unidirectional and bidirectional types, low clamping factor, fast response time, etc.
This document provides technical specifications for the SMAUJ series of TRANSIL™ diodes designed by STMicroelectronics. These devices are intended for protecting sensitive equipment against transient overvoltages in high-density printed circuit boards using the JEDEC registered SMA package.
The datasheet details absolute maximum ratings, electrical characteristics including stand-off voltage and clamping voltage for various models (e.g., 5V to 188V), thermal resistance values, and typical performance curves. It also includes mechanical data such as footprint dimensions and packaging information.
| Peak Pulse Power Dissipation | 400 W (10/1000us) |
|---|---|
| Stand Off Voltage Range | 5V to 188V |
| Maximum Junction Temperature | 150 °C |
| Storage Temperature Range | -65 to +175 °C |
| Junction to Leads Thermal Resistance | 30 °C/W |
| Weight | 0.068 g |
They are designed specifically for protecting sensitive equipment against transient overvoltages.
Yes, the series includes both uni and bidirectional types.