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SMAJ400A - LITTELFUSE

Description: ESD Suppressors / TVS Diodes 400W 400V 5% Uni-Directional

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Symbol
SMAJ400A - LITTELFUSE - PCB symbol
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PCB Footprints
SMAJ400A - LITTELFUSE PCB footprint - Diodes Moulded - Diodes Moulded - (DO-214AC)
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3D Models
SMAJ400A - LITTELFUSE - 3D model - Diodes Moulded - (DO-214AC)
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SMAJ400A Details

  • Manufacturer Part Number:

    SMAJ400A

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DO-214AC

  • Package Description:

    SMA, 2 PIN

  • Pin Count:

    2

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.10.00.50

  • Manufacturer:

    Littelfuse Inc

  • YTEOL:

    6.96

  • Breakdown Voltage-Max:

    494 V

  • Breakdown Voltage-Min:

    447 V

  • Breakdown Voltage-Nom:

    470.5 V

  • Clamping Voltage-Max:

    648 V

  • Configuration:

    SINGLE, 1 CHANNEL

  • Diode Element Material:

    SILICON

  • Diode Type:

    TRANS VOLTAGE SUPPRESSOR DIODE

  • Forward Voltage-Max (VF):

    5 V

  • JEDEC-95 Code:

    DO-214AC

  • JESD-30 Code:

    R-PDSO-C2

  • Moisture Sensitivity Level:

    1

  • Non-rep Peak Rev Power Dis-Max:

    600 W

  • Number of Elements:

    1

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -65 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Polarity:

    UNIDIRECTIONAL

  • Power Dissipation-Max:

    3.3 W

  • Qualification Status:

    Not Qualified

  • Reference Standard:

    IEC-61000-4-2; UL RECOGNIZED

  • Rep Pk Reverse Voltage-Max:

    400 V

  • Reverse Current-Max:

    1 µA

  • Reverse Test Voltage:

    400 V

  • Surface Mount:

    YES

  • Technology:

    AVALANCHE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    C BEND

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

SMAJ400A Frequently Asked Questions (FAQs)

  • The recommended footprint and land pattern for SMAJ400A can be found in the Littelfuse application note AN9313, which provides guidelines for surface mount assembly of TVS diodes.
  • To ensure reliability in high-temperature applications, it is recommended to derate the power rating of SMAJ400A according to the temperature derating curve provided in the datasheet. Additionally, ensure that the device is soldered correctly and that the PCB is designed to minimize thermal stress.
  • Yes, SMAJ400A can be used in a parallel configuration to increase the power rating. However, it is essential to ensure that the devices are matched in terms of their electrical characteristics and that the PCB is designed to minimize current imbalance between the devices.
  • The maximum allowable voltage transients for SMAJ400A are specified in the datasheet as 400V. However, it is recommended to limit the voltage transients to 350V or less to ensure reliable operation and to prevent damage to the device.
  • To select the correct SMAJ400A variant, consider the following factors: working voltage, peak pulse current, and package type. Refer to the datasheet and application notes to determine the most suitable variant for your specific application.

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SMAJ400A Overview

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Part Image SMAJ400A Concord Semiconductor Corp

Trans Voltage Suppressor Diode, 400V V(RWM), Unidirectional, DO-214AC