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FMB3946 - onsemi

Description: ON Semi FMB3946 Dual NPN + PNP Transistor, 200 mA, 40 V, 6-Pin SOT-23

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PCB Footprints
FMB3946 - onsemi PCB footprint - SOT23 (6-Pin) - SOT23 (6-Pin) - SSOT 6L_
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FMB3946 - onsemi  - 3D model - SOT23 (6-Pin) - SSOT 6L_
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FMB3946 Details

  • Manufacturer Part Number:

    FMB3946

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSOT-23-6

  • Package Description:

    SUPERSOT-6

  • Manufacturer Package Code:

    419BL

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • Factory Lead Time:

    8 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    4

  • Collector Current-Max (IC):

    0.2 A

  • Collector-Base Capacitance-Max:

    4.5 pF

  • Collector-Emitter Voltage-Max:

    40 V

  • Configuration:

    SEPARATE, 2 ELEMENTS

  • DC Current Gain-Min (hFE):

    30

  • Highest Frequency Band:

    ULTRA HIGH FREQUENCY BAND

  • JESD-30 Code:

    R-PDSO-G6

  • JESD-609 Code:

    e3

  • Moisture Sensitivity Level:

    1

  • Number of Elements:

    2

  • Number of Terminals:

    6

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Polarity/Channel Type:

    NPN AND PNP

  • Power Dissipation-Max (Abs):

    0.7 W

  • Qualification Status:

    Not Qualified

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Position:

    DUAL

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

    30

  • Transistor Application:

    SWITCHING

  • Transistor Element Material:

    SILICON

  • Transition Frequency-Nom (fT):

    200 MHz

  • Turn-off Time-Max (toff):

    190 ns

  • Turn-on Time-Max (ton):

    38 ns

  • VCEsat-Max:

    0.25 V

FMB3946 Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and thermal vias is recommended. Ensure a minimum of 1 oz copper thickness and a thermal relief pattern under the device.
  • Implement a robust thermal management system, including a heat sink and thermal interface material. Ensure good airflow and avoid thermal hotspots.
  • A 10uF to 22uF X7R or X5R ceramic capacitor is recommended, with a voltage rating of 25V or higher, placed as close to the VIN pin as possible.
  • Use a shielded enclosure, keep sensitive components away from the FMB3946, and ensure good PCB layout practices, such as separating analog and digital grounds.
  • The maximum allowed voltage on the EN pin is 6V. Exceeding this voltage may damage the device.

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FMB3946 Overview

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Part Image FMB3946D87Z Fairchild Semiconductor Corporation

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