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SM303J1K - LITTELFUSE

Description: NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, U.S. SENSOR

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SM303J1K - LITTELFUSE  - 3D model
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SM303J1K Details

  • Manufacturer Part Number:

    SM303J1K

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    MELF

  • Reach Compliance Code:

    Unknown

  • ECCN Code:

    EAR99

  • HTS Code:

    8533.40.80.70

  • Manufacturer:

    Littelfuse Inc

  • YTEOL:

    7.75

  • Additional Feature:

    GLASS ENCAPSULATED, HERMETICALLY SEALED

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    220 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Diameter:

    1.524 mm

  • Package Length:

    3.429 mm

  • Package Style:

    MELF

  • Resistance:

    30000 Ω

  • Resistor Type:

    NTC THERMISTOR

  • Surface Mount:

    YES

  • Terminal Placement:

    DUAL ENDED

  • Terminal Shape:

    WRAPAROUND

  • Tolerance:

    10%

SM303J1K Frequently Asked Questions (FAQs)

  • The recommended land pattern for the SM303J1K can be found in the Littelfuse application note AN9313, which provides guidelines for surface mount assembly of TVS diodes.
  • To select the correct TVS diode, consider factors such as the maximum voltage, current, and power requirements of your application. You should also consider the type of transient protection required (e.g., lightning, ESD, or inductive load dump). Littelfuse provides a TVS Diode Selection Guide that can help with this process.
  • A unidirectional TVS diode protects against voltage transients in one direction (e.g., positive or negative), while a bidirectional TVS diode protects against voltage transients in both directions (e.g., both positive and negative). The SM303J1K is a unidirectional TVS diode.
  • Yes, the SM303J1K can be used for ESD protection. It has a high ESD rating of 30kV (contact discharge) and 30kV (air discharge) per IEC 61000-4-2, making it suitable for protecting sensitive electronics from electrostatic discharge.
  • The maximum operating temperature of the SM303J1K is 150°C, as specified in the datasheet. However, it's essential to consider the derating of the device's characteristics at higher temperatures to ensure reliable operation.

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SM303J1K Overview

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