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SMAJ24A

Transient Voltage Suppressor

The SMAJ24A is a transient voltage suppressor from Littelfuse. View the full SMAJ24A datasheet below including key specifications.

Official SMAJ24A datasheet (PDF) — the source this page was extracted from.

Manufacturer

Littelfuse

Category

Transient Voltage Suppressor

Package

DO-214AC/SMA

SMAJ24A Key Specifications

ParameterValue
Clamping Voltage38.9V
Number of Channels1
Operating Temperature-65℃~+150℃ °C
Peak Pulse Current (Ipp)10.3A
Peak Pulse Power Dissipation (Ppp)400W@10/1000us
PolarityUnidirectional
Reverse Leakage Current (Ir)1uA
Reverse Stand-Off Voltage (Vrwm)24V
typeTVS
Voltage - Breakdown29.5V

SMAJ24A Overview

Part: SMAJ5.0 (C)A THRU SMAJ440 ( C ) A — Microdiode Semconductor (Shenzhen)

Type: Transient Voltage Suppressor

Description: 400W peak pulse power, 5.0 to 440 V stand-off voltage Transient Voltage Suppressor in SMA package, designed for surface mounted applications.

Operating Conditions:

  • Operating temperature: -65 to +150 °C
  • Repetition rate (duty cycle): 0.01% (for 400W peak pulse power)
  • Reverse leakage current: Typical less than 1μA above 10V

Absolute Maximum Ratings:

  • Max peak pulse power dissipation: 400 W (at 10/1000 μs waveform)
  • Max steady state power dissipation: 3.3 W (at T A =50 °C)
  • Max peak forward surge current: 40 A (8.3ms single half sine-wave)
  • Max junction/storage temperature: -65 to +150 °C

Key Specs:

  • Reverse Stand-Off Voltage (V RWM): 5.0 V (for SMAJ5.0A)
  • Breakdown Voltage (V BR): 6.40–7.00 V (at I T = 10 mA for SMAJ5.0A)
  • Maximum Clamping Voltage (V C): 9.2 V (at I PP = 43.5 A for SMAJ5.0A)
  • Peak Pulse Current (I PP): 43.5 A (for SMAJ5.0A)
  • Reverse Leakage (I R): 800 μA (at V RWM = 5.0 V for SMAJ5.0A)
  • Typical thermal resistance junction to ambient: 120 °C/W
  • IEC 61000-4-2 ESD rating: 30 KV (Air), 30 KV (contact)

Features:

  • For surface mounted applications in order to optimize board space
  • Low profile package
  • Built-in strain relief
  • Glass passivated junction
  • Low inductance
  • Excellent clamping capability
  • Fast response time
  • High Temperature soldering: 260 °C /10 seconds at terminals
  • Plastic package has underwriters laboratory flammability 94V-0

Applications:

  • I/O interface AC/DC power supply
  • Low frequency signal transmission line (RS232, RS482, etc.)

Package:

  • JEDEC DO-214AC/SMA (0.07 grams)

SMAJ24A Features

  • For surface mounted applications in order to optimize board space
  • Low profile package
  • Built-in strain relief
  • Glass passivated junction
  • Low inductance
  • Excellent clamping capability
  • 400W peak pulse power capability at 10/1000μs waveform,
  • Repetition rate (duty cycle): 0.01%
  • Fast response time
  • Typical IR less than 1μA above 10V
  • High Temperature soldering: 260 °C /10 seconds at terminals
  • Plastic package has underwriters laboratory flammability 94V-0
  • IEC 61000-4-2 ESD 30 K V(Air),30 K V(contact)

SMAJ24A Applications

  • I/O interface AC/DC power supply

  • Low frequency signal transmission line (RS232, RS485, etc.)

Stand-off Voltage - 5.0 to 440

Volts Peak Pulse Power: 400 Watts

SMAJ24A Package Information

Case

: JEDEC DO-214AC/SMA molded plastic body

Terminals

: Solderable per MIL-STD-750,Method 2026

Polarity

: Polarity symbol marking on body

Mounting Position

: Any

Weight

: 0.0 7 grams

Marking

:

Date Code and Marking Code

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
SMAJ24CALittelfuseDO-214AC/SMA
SMAJ440ALittelfuseDO-214AC
SMAJ440CALittelfuseDO-214AC
SMAJ5.0ALittelfuseDO-214AC
SMAJ5.0CALittelfuseDO-214AC

More datasheets

All Littelfuse datasheets (70)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

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