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MC33189 - Multicomp Pro

Description: MULTICOMP - MC33189 - FUSE, PTC RESET, SMD, 60V, 300MA

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Symbol
MC33189 - Multicomp Pro - PCB symbol
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PCB Footprints
MC33189 - Multicomp Pro PCB footprint - Fuses Chip - Fuses Chip - MC33189
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3D Models
MC33189 - Multicomp Pro - 3D model - Fuses Chip - MC33189
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MC33189 Details

  • Manufacturer Part Number:

    MC33189

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    CHIP, 3121, ROHS COMPLIANT

  • Reach Compliance Code:

    Unknown

  • ECCN Code:

    EAR99

  • HTS Code:

    8533.40.80.70

  • Manufacturer:

    SPC Multicomp

  • YTEOL:

    7.3

  • Additional Feature:

    MINIMUM RESISTANCE IS 1 OHMS

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Shape:

    RECTANGULAR PACKAGE

  • Rated Power Dissipation (P):

    1.5 W

  • Resistor Type:

    PTC RESETTABLE FUSE

  • Surface Mount:

    YES

  • Terminal Finish:

    Pure Tin (Sn)

  • Terminal Placement:

    DUAL ENDED

  • Terminal Shape:

    WRAPAROUND

  • Thermistor Application:

    TEMPERATURE SENSING

MC33189 Frequently Asked Questions (FAQs)

  • A good PCB layout is crucial for the MC33189. Ensure that the input and output capacitors are placed close to the IC, and the power traces are wide and short. Keep the analog and digital grounds separate and connect them at a single point. Use a solid ground plane and avoid routing high-frequency signals near the IC.
  • Choose input capacitors with low ESR (Equivalent Series Resistance) and high ripple current rating. For output capacitors, select ones with low ESR, high capacitance, and a voltage rating that matches the output voltage. A good starting point is to use 10uF to 22uF ceramic capacitors for both input and output.
  • Although the datasheet specifies a maximum input voltage of 18V, it's recommended to keep the input voltage below 15V to ensure reliable operation and prevent overheating.
  • The output voltage can be adjusted by changing the resistive divider ratio (R1 and R2) connected to the FB pin. Use the formula: Vout = 1.25V x (1 + R2/R1) to calculate the desired output voltage.
  • The MC33189 can operate with an input voltage as low as 7V, but the output voltage regulation may not be as accurate. For optimal performance, it's recommended to use an input voltage above 8V.

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MC33189 Overview

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