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1N4149 - Microchip

Description: Diodes - General Purpose, Power, Switching Switching Diode

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1N4149 - Microchip - PCB symbol
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PCB Footprints
1N4149 - Microchip PCB footprint - Diodes, Axial Diameter Horizontal Mounting - Diodes, Axial Diameter Horizontal Mounting - 1N4149
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1N4149 Details

  • Manufacturer Part Number:

    1N4149

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.10.00.70

  • Factory Lead Time:

    22 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    23

  • Additional Feature:

    METALLURGICALLY BONDED

  • Case Connection:

    ISOLATED

  • Configuration:

    SINGLE

  • Diode Element Material:

    SILICON

  • Diode Type:

    RECTIFIER DIODE

  • Forward Voltage-Max (VF):

    1 V

  • JEDEC-95 Code:

    DO-35

  • JESD-30 Code:

    O-LALF-W2

  • JESD-609 Code:

    e0

  • Non-rep Pk Forward Current-Max:

    0.5 A

  • Number of Elements:

    1

  • Number of Phases:

    1

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -65 °C

  • Output Current-Max:

    0.2 A

  • Package Body Material:

    GLASS

  • Package Shape:

    ROUND

  • Package Style:

    LONG FORM

  • Qualification Status:

    Not Qualified

  • Reverse Current-Max:

    0.025 µA

  • Reverse Recovery Time-Max:

    0.004 µs

  • Surface Mount:

    NO

  • Terminal Form:

    WIRE

  • Terminal Position:

    AXIAL

1N4149 Frequently Asked Questions (FAQs)

  • The recommended storage temperature for 1N4149 diodes is -65°C to 150°C.
  • While the 1N4149 diode is suitable for high-frequency applications, its performance may degrade above 100 MHz due to its internal capacitance and inductance. For high-frequency applications, consider using a diode with a lower capacitance and inductance, such as the 1N4148.
  • To prevent electrostatic discharge (ESD) damage, handle 1N4149 diodes with ESD-protective equipment, such as wrist straps, mats, and bags. Ensure that your workspace is ESD-safe, and avoid touching the diode's leads or body.
  • Yes, the 1N4149 diode can be used in switching power supplies, but its reverse recovery time (trr) may not be suitable for high-frequency switching applications. Consider using a diode with a faster trr, such as the 1N4933, for high-frequency switching power supplies.
  • The recommended soldering temperature for 1N4149 diodes is 260°C for 10 seconds, with a maximum temperature of 300°C for 5 seconds. Exceeding these temperatures can damage the diode.

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1N4149 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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1N4149 Alternates

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Image Part Number Model
Part Image 1N4149 Fairchild Semiconductor Corporation

Rectifier Diode, 1 Phase, 1 Element, 0.5A, 100V V(RRM), Silicon, DO-35
Part Image 1N4149E3 Microsemi Corporation (now Microchip)

Rectifier Diode, 1 Phase, 1 Element, 0.2A, 100V V(RRM), Silicon
Part Image 1N4149 Crimson Semiconductor Inc

Rectifier Diode, 1 Phase, 1 Element, 0.15A, 100V V(RRM), Silicon, DO-35
Part Image 1N4149.TR Texas Instruments

100V, SILICON, SIGNAL DIODE, DO-35
Part Image 1N4149 International Semiconductor Inc

Rectifier Diode, 1 Phase, 1 Element, 0.15A, 100V V(RRM), Silicon, DO-35
For a full list of alternate parts for 1N4149, check out Findchips.com