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SMAJ440A

Transient Voltage Suppressor

The SMAJ440A is a transient voltage suppressor from Littelfuse. View the full SMAJ440A datasheet below including electrical characteristics.

Manufacturer

Littelfuse

Category

Transient Voltage Suppressor

Overview

Part: SMAJ Series Transient Voltage Suppressor from Microdiode Semiconductor (Shenzhen)

Type: Transient Voltage Suppressor (TVS)

Description: A surface-mount transient voltage suppressor series offering 400 W peak pulse power capability at 10/1000μs waveform, with stand-off voltages ranging from 5.0 V to 440 V, and excellent clamping capability.

Operating Conditions:

  • Supply voltage: Not applicable
  • Peak pulse power capability: 400 W (at 10/1000μs waveform)

Absolute Maximum Ratings:

  • Max supply voltage: Not applicable
  • Max continuous current: Not applicable

Key Specs:

  • Peak pulse power dissipation: 400 W (at 10/1000μs waveform)
  • Reverse stand-off voltage (VRWM): 5.0 V to 440 V
  • Breakdown voltage (VBR): 6.40 V to 543.00 V (at IT)
  • Maximum clamping voltage (VC): 9.2 V to 713.0 V (at IPP)
  • Peak pulse current (IPP): 0.56 A to 43.5 A (at 10/1000μs waveform)
  • Reverse leakage current (IR): 1 μA to 800 μA (at VRWM, TA=25°C)
  • ESD protection: IEC 61000-4-2 ESD 30KV (Air), 30KV (contact)
  • Response time: Fast

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
  • Typical IR less than 1μA above 10V
  • 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, RS485, etc.)

Package:

  • DO-214AC/SMA

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 30KV(Air),30KV(contact)

0.209*(5.30) 0.067 (1.70) 0.051 (1.30) 0.150(3.80) 0.110(2.80) 0.090(2.30) 0.029(0.75 0.061(1.55) 0.184(4.70) 0.012(0.305) 0.006(0.152) 0.073(1.85 0.097(2.45) 0.008(0.20)* Unipolar Bipolar

DO-214AC/SMA

Dimensions in inches and (millimeters)

Applications

  • I/O interface AC/DC power supply
  • Low frequency signal transmission line (RS232, RS485, etc.)

Electrical Characteristics

Part NumberDevice
Marking
Code		Reverse
Stand-Off
Voltage		Breakdown
Voltage
@IT		Maximum
Clamping
Voltage
@IPP		Peak
Pulse
Current		Reverse
Leakage
@VRWM
UnidirectionalBidirectionalUNIBIVRWM(V)VBR(V)IT(mA)VC(V)IPP(A)IR(μA)
SMAJ5.0ASMAJ5.0CAAEWE5.06.40~7.00109.243.5800
SMAJ6.0ASMAJ6.0CAAGWG6.06.67~7.371010.338.8800
SMAJ6.5ASMAJ6.5CAAKWK6.57.22~7.981011.235.7500
SMAJ7.0ASMAJ7.0CAAMWM7.07.78~8.601012.033.3200
SMAJ7.5ASMAJ7.5CAAPWP7.58.33~9.21112.931.0100
SMAJ8.0ASMAJ8.0CAARWR8.08.89~9.83113.629.450
SMAJ8.5ASMAJ8.5CAATWT8.59.44~10.40114.427.820
SMAJ9.0ASMAJ9.0CAAVWV9.010.00~11.10115.426.010
SMAJ10ASMAJ10CAAXWX10.011.10~12.30117.023.55
SMAJ11ASMAJ11CAAZWZ11.012.20~13.50118.222.01
SMAJ12ASMAJ12CABEXE12.013.30~14.70119.920.11
SMAJ13ASMAJ13CABGXG13.014.40~15.90121.518.61
SMAJ14ASMAJ14CABKXK14.015.60~17.20123.217.21
SMAJ15ASMAJ15CABMXM15.016.70~18.50124.416.41
SMAJ16ASMAJ16CABPXP16.017.80~19.70126.015.41
SMAJ17ASMAJ17CABRXR17.018.90~20.90127.614.51
SMAJ18ASMAJ18CABTXT18.020.00~22.10129.213.71
SMAJ20ASMAJ20CABVXV20.022.20~24.50132.412.31
SMAJ22ASMAJ22CABXXX22.024.40~26.90135.511.31
SMAJ24ASMAJ24CABZXZ24.026.70~29.50138.910.31
SMAJ26ASMAJ26CACEYE26.028.90~31.90142.19.51
SMAJ28ASMAJ28CACGYG28.031.10~34.40145.48.81
SMAJ30ASMAJ30CACKYK30.033.30~36.80148.48.31
SMAJ33ASMAJ33CACMYM33.036.70~40.60153.37.51
SMAJ36ASMAJ36CACPYP36.040.00~44.20158.16.91
SMAJ40ASMAJ40CACRYR40.044.40~49.10164.56.21
SMAJ43ASMAJ43CACTYT43.047.80~52.80169.45.81
SMAJ45ASMAJ45CACVYV45.050.00~55.30172.75.51
SMAJ48ASMAJ48CACXYX48.053.30~58.90177.45.21
SMAJ51ASMAJ51CACZYZ51.056.70~62.70182.44.91
SMAJ54ASMAJ54CAREZE54.060.00~66.30187.14.61
SMAJ58ASMAJ58CARGZG58.064.40~71.20193.64.31
SMAJ60ASMAJ60CARKZK60.066.70~73.70196.84.11
SMAJ64ASMAJ64CARMZM64.071.10~78.601103.03.91
SMAJ70ASMAJ70CARPZP70.077.80~86.001113.03.51
SMAJ75ASMAJ75CARRZR75.083.30~92.101121.03.31
SMAJ78ASMAJ78CARTZT78.086.70~95.801126.03.21
SMAJ85ASMAJ85CARVZV85.094.40~104.001137.02.91
SMAJ90ASMAJ90CARXZX90.0100.00~111.001146.02.71
SMAJ100ASMAJ100CARZZZ100.0111.00~123.001162.02.51
SMAJ110ASMAJ110CA
SMAJ120CA		SE
SG		VE
VG		110.0
120.0		122.00135.00
133.00147.00		1
1		177.0
193.0		2.3
2.1		1
1

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 : 0.07 grams

Marking : Date Code and Marking Code

Related Variants

The following components are covered by the same datasheet.

Part NumberManufacturerPackage
SMAJLittelfuse—
SMAJ24ALittelfuseDO-214AC(SMA)
SMAJ24CALittelfuseDO-214AC/SMA
SMAJ440CALittelfuse—
SMAJ5.0ALittelfuse—
SMAJ5.0CALittelfuse—
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