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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.

Manufacturer

Littelfuse

Category

Transient Voltage Suppressor

Package

DO-214AC/SMA

Key Specifications

ParameterValue
Clamping Voltage38.9V
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

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)

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)

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

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

Related Variants

The following components are covered by the same datasheet.

Part NumberManufacturerPackage
SMAJLittelfuseDO-214AC/SMA
SMAJ24CALittelfuseDO-214AC/SMA
SMAJ440ALittelfuse
SMAJ440CALittelfuse
SMAJ5.0ALittelfuse
SMAJ5.0CALittelfuse
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