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1N991B - Microchip

Description: Zener Diodes Zener Diodes

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PCB Footprints
1N991B - Microchip PCB footprint - Diodes, Axial Diameter Horizontal Mounting - Diodes, Axial Diameter Horizontal Mounting - DO-35_2022
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3D Models
1N991B - Microchip  - 3D model - Diodes, Axial Diameter Horizontal Mounting - DO-35_2022
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1N991B Details

  • Manufacturer Part Number:

    1N991B

  • Rohs Code:

    No

  • Part Life Cycle Code:

    Active

  • Package Description:

    DO-7, 2 PIN

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.10.00.50

  • Factory Lead Time:

    22 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    23

  • Case Connection:

    ISOLATED

  • Configuration:

    SINGLE

  • Diode Element Material:

    SILICON

  • Diode Type:

    ZENER DIODE

  • Dynamic Impedance-Max:

    2200 Ω

  • Forward Voltage-Max (VF):

    1.3 V

  • JEDEC-95 Code:

    DO-204AA

  • JESD-30 Code:

    O-LALF-W2

  • JESD-609 Code:

    e0

  • Knee Impedance-Max:

    7100 Ω

  • Number of Elements:

    1

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    175 °C

  • Operating Temperature-Min:

    -65 °C

  • Package Body Material:

    GLASS

  • Package Shape:

    ROUND

  • Package Style:

    LONG FORM

  • Polarity:

    UNIDIRECTIONAL

  • Power Dissipation-Max:

    0.417 W

  • Qualification Status:

    Not Qualified

  • Reference Voltage-Nom:

    180 V

  • Reverse Current-Max:

    5 µA

  • Reverse Test Voltage:

    136.8 V

  • Surface Mount:

    NO

  • Technology:

    ZENER

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    WIRE

  • Terminal Position:

    AXIAL

  • Voltage Temp Coeff-Max:

    198 mV/°C

  • Voltage Tol-Max:

    5%

  • Working Test Current:

    0.68 mA

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1N991B Overview

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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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1N991B Alternates

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Image Part Number Model
Part Image 1N991AE3 Microchip Technology Inc

Zener Diode, 180V V(Z), 10%, 0.417W, Silicon, Unidirectional, DO-204AA

Part Image 1N991B-1E3/TR Microchip Technology Inc

Zener Diode, 180V V(Z), 5%, 0.4W, Silicon, Unidirectional, DO-204AH, DO-35, 2 PIN

Part Image 1N991B-1E3TR Microsemi Corporation (now Microchip)

Zener Diode

Part Image 1N991A Motorola Semiconductor Products

Zener Diode, 180V V(Z), 10%, 0.4W, Silicon, Unidirectional, DO-204AA

Part Image 1N991 Fairchild Semiconductor Corporation

Zener Diode, 180V V(Z), 20%, 0.4W

For a full list of alternate parts for 1N991B, check out Findchips.com