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SM4T21CAY - STMicroelectronics

Description: STMicroelectronics SM4T21CAY Bi-Directional TVS Diode, 400W peak, 2-Pin DO-214AC

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PCB Footprints
SM4T21CAY - STMicroelectronics PCB footprint - Other - Other - SMA_BD
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SM4T21CAY - STMicroelectronics  - 3D model - Other - SMA_BD
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SM4T21CAY Details

  • Manufacturer Part Number:

    SM4T21CAY

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DO-214AC

  • Package Description:

    SMA, 2 PIN

  • Pin Count:

    2

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.10.00.50

  • Factory Lead Time:

    53 Weeks, 1 Day

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6.1

  • Breakdown Voltage-Max:

    22.2 V

  • Breakdown Voltage-Min:

    20 V

  • Breakdown Voltage-Nom:

    21.1 V

  • Clamping Voltage-Max:

    39.3 V

  • Configuration:

    SINGLE, 1 CHANNEL

  • Diode Element Material:

    SILICON

  • Diode Type:

    TRANS VOLTAGE SUPPRESSOR DIODE

  • JEDEC-95 Code:

    DO-214AC

  • JESD-30 Code:

    R-PDSO-C2

  • JESD-609 Code:

    e3

  • Moisture Sensitivity Level:

    1

  • Non-rep Peak Rev Power Dis-Max:

    400 W

  • Number of Elements:

    1

  • Number of Terminals:

    2

  • 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):

    NOT SPECIFIED

  • Polarity:

    BIDIRECTIONAL

  • Qualification Status:

    Not Qualified

  • Reference Standard:

    AEC-Q101; IEC-61000-4-2; ISO 10605

  • Rep Pk Reverse Voltage-Max:

    18 V

  • Reverse Current-Max:

    0.2 µA

  • Reverse Test Voltage:

    18 V

  • Surface Mount:

    YES

  • Technology:

    AVALANCHE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    C BEND

  • Terminal Position:

    DUAL

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

    NOT SPECIFIED

SM4T21CAY Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN5076, which includes guidelines for thermal pad connection, thermal vias, and copper pouring to ensure optimal thermal performance.
  • The thermal shutdown feature is enabled by default. To handle it, monitor the TSD pin, which goes low when the device reaches the thermal shutdown temperature (typically 150°C). You can also use the TSD pin to trigger an interrupt or reset the device.
  • Although the datasheet specifies a maximum rating of 3.6V, it's recommended to keep the VCC voltage below 3.4V to ensure reliable operation and prevent damage to the device.
  • To configure the device for low-power mode, set the PWRMODE pin to a logic low. This reduces the device's power consumption, but note that some features may be disabled or have reduced performance in low-power mode.
  • The recommended clock frequency for the SM4T21CAY is up to 80 MHz, but it can operate at frequencies up to 100 MHz with some performance degradation. Always check the device's performance and power consumption at the desired clock frequency.

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SM4T21CAY Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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