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1N4743ATR - onsemi

Description: Zener Voltage Range - 3.3 V to 91 V; ESD Rating of Class 3 (>16 KV) per Human Body Model; DO-41 (DO-204AL) Package; Double Slug Type Construction; Metallurgical Bonded Construction; Oxide Passivated Die Mechanical Characteristics:; CASE: Double slug type, hermetically sealed glass; FINISH: All external surfaces are corrosion resistant and leads are readily solderable; MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES: 230°C, 1/16" from the case for 10 seconds; POLARITY: Cathode indicated by polarity band; MOU

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PCB Footprints
1N4743ATR - onsemi PCB footprint - Diodes, Axial Diameter Horizontal Mounting - Diodes, Axial Diameter Horizontal Mounting - AXIAL LEAD / DO−41 CASE 017AH ISSUE O
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1N4743ATR - onsemi  - 3D model - Diodes, Axial Diameter Horizontal Mounting - AXIAL LEAD / DO−41 CASE 017AH ISSUE O
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  • Datasheet Download Datasheet
  • Stock & Prices $ Price & Stock for 1N4743ATR
  • Part Number 1N4743ATR
  • Manufacturer onsemi
  • Pin Count 2
  • Part Category Zener Diode
  • Package Category Diodes, Axial Diameter Horizontal Mounting
  • Footprint Name Diodes, Axial Diameter Horizontal Mounting - AXIAL LEAD / DO−41 CASE 017AH ISSUE O
  • Released Date Aug 6, 2018
  • Last Modified Date Jan 22, 2025 4:53 PM UTC
  • Pinout / Pin List Click Here (Member Only)

1N4743ATR Details

  • Manufacturer Part Number:

    1N4743ATR

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    Axial Lead / DO-41

  • Manufacturer Package Code:

    017AH

  • Reach Compliance Code:

    Compliant

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.10.00.50

  • Factory Lead Time:

    22 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    5.85

  • Case Connection:

    ISOLATED

  • Configuration:

    SINGLE

  • Diode Element Material:

    SILICON

  • Diode Type:

    ZENER DIODE

  • Dynamic Impedance-Max:

    10 Ω

  • JEDEC-95 Code:

    DO-41

  • JESD-30 Code:

    O-PALF-W2

  • JESD-609 Code:

    e3

  • Knee Impedance-Max:

    700 Ω

  • Number of Elements:

    1

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    200 °C

  • Operating Temperature-Min:

    -65 °C

  • Package Body Material:

    GLASS

  • Package Shape:

    ROUND

  • Package Style:

    LONG FORM

  • Polarity:

    UNIDIRECTIONAL

  • Power Dissipation-Max:

    1 W

  • Qualification Status:

    Not Qualified

  • Reference Voltage-Nom:

    13 V

  • Reverse Current-Max:

    5 µA

  • Reverse Test Voltage:

    9.9 V

  • Surface Mount:

    NO

  • Technology:

    ZENER

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    WIRE

  • Terminal Position:

    AXIAL

  • Voltage Tol-Max:

    5%

  • Working Test Current:

    19 mA

1N4743ATR Frequently Asked Questions (FAQs)

  • The recommended operating temperature range for the 1N4743ATR is -65°C to 150°C.
  • Yes, the 1N4743ATR is a high-reliability zener diode suitable for use in high-reliability applications, such as aerospace, defense, and medical devices.
  • To ensure proper soldering, use a soldering iron with a temperature of 260°C (500°F) or less, and avoid applying excessive force or bending the leads.
  • The maximum power dissipation for the 1N4743ATR is 1 watt, and it is recommended to derate the power dissipation based on the ambient temperature.
  • Yes, the 1N4743ATR can be used in switching power supplies, but ensure that the voltage and current ratings are not exceeded, and consider the diode's reverse recovery time and switching losses.

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1N4743ATR Overview

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