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SA54A Datasheet Transient Voltage Suppression Diodes

Manufacturer: Littelfuse

Download the SA54A datasheet PDF. This datasheet also includes the SA5.0A variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (SA5.0A-Littelfuse.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SA54A
Manufacturer Littelfuse
File Size 0.96 MB
Description Transient Voltage Suppression Diodes
Datasheet download datasheet SA54A Datasheet

General Description

The SA Series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

Overview

SA Series TVS Diodes Axial Leaded – 500W > SA series RoHS Pb e3 Bi-directional Uni-directional Agency Approvals Agency Agency File Number E230531 Maximum Ratings and Thermal Characteristics (TA=25OC unless otherwise noted) Parameter Symbol Value Unit Peak Pulse Power Dissipation by 10/1000μs Test Waveform (Fig.2)(Note 1) PPPM 500 W Steady State Power Dissipation on Infinite Heat Sink at TL=75ºC PD 3.0 W Peak Forward Surge Current, 8.3ms Single Half Sine Wave Unidirectional Only (Note 2) IFSM 70 A Maximum Instantaneous Forward Voltage at 35A for Unidirectional Only VF 3.5 V Operating Junction and Storage Temperature Range TJ, TSTG -65 to 175 °C Typical Thermal Resistance Junction to Lead RθJL Typical Thermal Resistance Junction to Ambient RθJA 20 °C/W 75 °C/W Notes: 1.

Non-repetitive current pulse , per Fig.

4 and derated above TJ (initial) =25OC per Fig.

Key Features

  • 500W peak pulse capability at 10/1000μs waveform, repetition rate (duty cycles):0.01%.
  • VBR @ TJ= VBR@25°C x (1+αT x (TJ - 25)) (αT:Temperature Coefficient, typical value is 0.1%).
  • Glass passivated chip junction in DO-15 Package.
  • Fast response time: typically less than 1.0ps from 0 Volts to BV min.
  • Excellent clamping capability.
  • Typical failure mode is short from over-specified voltage or current.
  • Whisker test is conducted based.

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