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1N4744A - Vishay

Description: Zener Diode 15 V 1.3 W ±5% Through Hole DO-204AL (DO-41), 5 µA, 14Ohms, -65°C to +175°C

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Symbol
1N4744A - Vishay - PCB symbol
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PCB Footprints
1N4744A - Vishay PCB footprint - Diodes, Axial Diameter Horizontal Mounting - Diodes, Axial Diameter Horizontal Mounting - DO-41 (DO-204AL)_2025
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3D Models
1N4744A - Vishay - 3D model - Diodes, Axial Diameter Horizontal Mounting - DO-41 (DO-204AL)_2025
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  • Datasheet Download Datasheet
  • Stock & Prices $ Price & Stock for 1N4744A
  • Part Number 1N4744A
  • Manufacturer Vishay
  • Pin Count 2
  • Part Category Zener Diode
  • Package Category Diodes, Axial Diameter Horizontal Mounting
  • Footprint Name Diodes, Axial Diameter Horizontal Mounting - DO-41 (DO-204AL)_2025
  • Released Date Jan 22, 2025
  • Last Modified Date Jan 22, 2025 3:22 PM UTC
  • Pinout / Pin List Click Here (Member Only)

1N4744A Details

  • Manufacturer Part Number:

    1N4744A

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    HALOGEN FREE AND ROHS COMPLIANT PACKAGE-2

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.10.00.50

  • Manufacturer:

    Vishay Intertechnologies

  • YTEOL:

    5

  • Case Connection:

    ISOLATED

  • Configuration:

    SINGLE

  • Diode Element Material:

    SILICON

  • Diode Type:

    ZENER DIODE

  • JEDEC-95 Code:

    DO-41

  • JESD-30 Code:

    O-XALF-W2

  • JESD-609 Code:

    e2

  • Moisture Sensitivity Level:

    1

  • Number of Elements:

    1

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    175 °C

  • Package Body Material:

    UNSPECIFIED

  • Package Shape:

    ROUND

  • Package Style:

    LONG FORM

  • Peak Reflow Temperature (Cel):

    260

  • Polarity:

    UNIDIRECTIONAL

  • Power Dissipation-Max:

    1.3 W

  • Qualification Status:

    Not Qualified

  • Reference Voltage-Nom:

    15 V

  • Surface Mount:

    NO

  • Technology:

    ZENER

  • Terminal Finish:

    Tin/Silver (Sn96.5Ag3.5)

  • Terminal Form:

    WIRE

  • Terminal Position:

    AXIAL

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

    30

  • Voltage Tol-Max:

    5%

  • Working Test Current:

    17 mA

1N4744A Frequently Asked Questions (FAQs)

  • The recommended soldering temperature for the 1N4744A is between 250°C to 260°C for a maximum of 10 seconds.
  • While the 1N4744A is a standard recovery diode, it's not recommended for high-frequency switching applications due to its relatively high reverse recovery time (trr) of 3µs. For high-frequency applications, consider using a faster diode with a lower trr.
  • To prevent electrostatic discharge (ESD) damage, handle the 1N4744A with an anti-static wrist strap or mat, and ensure that your workspace is ESD-protected. Avoid touching the device's pins or leads with your bare hands.
  • The maximum allowable voltage derating for the 1N4744A is 80% of the rated voltage (400V) at high temperatures (above 150°C). This ensures reliable operation and prevents thermal runaway.
  • Yes, you can use multiple 1N4744A diodes in parallel to increase the current handling capacity. However, ensure that each diode has its own current-limiting resistor and that the diodes are matched for voltage and current ratings to prevent uneven current sharing.

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1N4744A Overview

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1N4744A Alternates

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Image Part Number Model
Part Image 1N4744ATR Central Semiconductor Corp

Zener Diode, 15V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41
Part Image 1N4744A-T Rectron Semiconductor

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Part Image 1N4744A Lite-On Semiconductor Corporation

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Part Image 1N4744ATA Motorola Semiconductor Products

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Part Image 1N4744A(DO41) Microsemi Corporation (now Microchip)

Zener Diode, 15V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41
For a full list of alternate parts for 1N4744A, check out Findchips.com