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1N4728ATR - 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
1N4728ATR - 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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1N4728ATR - 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 1N4728ATR
  • Part Number 1N4728ATR
  • 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 Dec 27, 2017
  • Last Modified Date Jan 22, 2025 4:53 PM UTC
  • Pinout / Pin List Click Here (Member Only)

1N4728ATR Details

  • Manufacturer Part Number:

    1N4728ATR

  • 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:

    21 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-LALF-W2

  • JESD-609 Code:

    e3

  • Knee Impedance-Max:

    400 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:

    3.3 V

  • Reverse Current-Max:

    100 µA

  • Reverse Test Voltage:

    1 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:

    76 mA

1N4728ATR Frequently Asked Questions (FAQs)

  • The recommended storage temperature range for the 1N4728ATR is -40°C to 125°C.
  • Yes, the 1N4728ATR is suitable for high-reliability applications, as it is designed and manufactured to meet the requirements of AEC-Q101, a standard for automotive-grade semiconductor components.
  • Yes, the 1N4728ATR can be used in switching power supplies due to its fast switching speed and low forward voltage drop, making it suitable for high-frequency switching applications.
  • The maximum allowable power dissipation for the 1N4728ATR is 3.5 watts, and it is recommended to derate the power dissipation based on the ambient temperature and thermal resistance of the device.
  • Yes, the 1N4728ATR is compatible with lead-free soldering processes, as it is designed to meet the requirements of RoHS (Restriction of Hazardous Substances) and WEEE (Waste Electrical and Electronic Equipment) directives.

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1N4728ATR Overview

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1N4728ATR Alternates

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Image Part Number Model
Part Image 1N4728A Vishay Semiconductors

Zener Diode, 3.3V V(Z), 5%, 1W, Silicon, Unidirectional, DO-204AL

Part Image 1N4728A-T Diodes Incorporated

Zener Diode, 3.3V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41

Part Image 1N4728A Texas Instruments

Zener Diode, 3.3V V(Z), 5%, 1W, Silicon, Unidirectional, 36050

Part Image 1N4728A-A Diodes Incorporated

Zener Diode, 3.3V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41

Part Image 1N4728APTR Microsemi Corporation (now Microchip)

Zener Diode, 3.3V V(Z), 5%, 1W, Silicon, Unidirectional, DO-204AL

For a full list of alternate parts for 1N4728ATR, check out Findchips.com