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UDZSTE-178.2B - ROHM Semiconductor

Description: Zener Diode

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UDZSTE-178.2B - ROHM Semiconductor PCB footprint - Other - Other - UMD2_SOD-323F
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UDZSTE-178.2B - ROHM Semiconductor  - 3D model - Other - UMD2_SOD-323F
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UDZSTE-178.2B Details

  • Manufacturer Part Number:

    UDZSTE-178.2B

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Part Package Code:

    SC-76

  • Package Description:

    MINIMOLD, UMD2, SC-76, 2 PIN

  • Pin Count:

    2

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.10.00.50

  • Factory Lead Time:

    22 Weeks

  • Date Of Intro:

    1997-07-01

  • Manufacturer:

    ROHM Semiconductor

  • YTEOL:

    1

  • Configuration:

    SINGLE

  • Diode Element Material:

    SILICON

  • Diode Type:

    ZENER DIODE

  • Dynamic Impedance-Max:

    30 Ω

  • JESD-30 Code:

    R-PDSO-F2

  • JESD-609 Code:

    e1

  • Knee Impedance-Max:

    60 Ω

  • Moisture Sensitivity Level:

    1

  • Number of Elements:

    1

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    125 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Polarity:

    UNIDIRECTIONAL

  • Power Dissipation-Max:

    0.2 W

  • Qualification Status:

    Not Qualified

  • Reference Voltage-Nom:

    8.2 V

  • Reverse Current-Max:

    0.5 µA

  • Surface Mount:

    YES

  • Technology:

    ZENER

  • Terminal Finish:

    Tin/Silver/Copper (Sn/Ag/Cu)

  • Terminal Form:

    FLAT

  • Terminal Position:

    DUAL

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

    30

  • Voltage Tol-Max:

    2.08%

  • Working Test Current:

    5 mA

UDZSTE-178.2B Frequently Asked Questions (FAQs)

  • A thermal pad is recommended under the IC, and a 2-layer or 4-layer PCB with a thermal relief pattern is suggested to improve heat dissipation.
  • Use a high-quality output capacitor with low ESR, ensure a stable input voltage, and minimize noise on the VIN pin to ensure stable output voltage regulation.
  • The maximum allowed input voltage ripple is 10% of the nominal input voltage to ensure stable operation and prevent damage to the IC.
  • While ceramic capacitors can be used, it's recommended to use an electrolytic capacitor or a polymer capacitor for the output capacitor due to their lower ESR and higher capacitance.
  • The output voltage tolerance can be calculated by adding the output voltage accuracy (±2%) to the output voltage temperature coefficient (±0.5%/°C) multiplied by the operating temperature range.

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UDZSTE-178.2B Overview

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