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    Part number
    Part number
    1. Home/
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    3. Electromechanical/
    4. Relays, Contactors & Solenoids/
    5. THC421C Littelfuse

    THC421C [Littelfuse]

    THC421C
    THC421C

    Part No:

    THC421C

    Category:

    Relays, Contactors & Solenoids

    Manufacturer:

    Littelfuse

    Description:

    The THC/THS Series is a solid-state relay and timer combined into one compact, easy-to-use control.

    Datasheet:

    Product FAQ

    1. Is THC421C available for RFQ?

    Yes. THC421C by Littelfuse is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for THC421C?

    Pricing for THC421C can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of THC421C?

    THC421C is a Littelfuse Relays, Contactors & Solenoids with THC421C Max Load Current Inrush: 200A and THC421C Max Load Current Steady: 20A. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for THC421C?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can THC421C be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to THC421C?

    Yes. If THC421C is unavailable, obsolete, or does not meet your required lead time, we can help check similar Littelfuse Relays, Contactors & Solenoids parts or compatible alternatives.

    RFQ

    Part Number:

    THC421C

    Manufacturer:

    Littelfuse

    Looking for Pricing? Contact us for volume pricing.

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Insulation Resistance
    ≥100MΩ
    Operating Humidity
    95% relative, non-condensing
    Operating Temperature
    -20°C ~ 60°C
    Weight
    3.9 oz (111 g)
    Storage Temperature
    -40°C ~ 85°C
    Ac Line Frequency
    50/60Hz
    Dielectric Breakdown
    ≥ 2000V RMS terminals to mounting surface
    Dimensions
    50.8 mm x 50.8 mm x 38.4 mm
    Initiate Time
    ≤ 20ms
    Input Tolerance
    ±15%
    Input Voltage
    24, 120, or 230VAC
    Minimum Load Current
    100mA
    Mounting Type
    Surface mount with one #10 (M5 x 0.8) screw
    Off State Leakage Current
    ≅ 5mA @ 230VAC
    Output Form
    NO, closed during timing
    Output Type
    Solid state
    Power Consumption
    ≤ 2VA
    Repeat Accuracy
    ±2% or 20ms
    Reset Time
    ≤ 150ms
    THC421C Max Load Current Inrush
    200A
    THC421C Max Load Current Steady
    20A
    THC421C Time Delay Range Max
    3s
    THC421C Time Delay Range Min
    0.1s
    THS422B Max Load Current Inrush
    100A
    THS422B Max Load Current Steady
    10A
    THS422B Time Delay Range Max
    60s
    THS422B Time Delay Range Min
    0.5s
    THS422C Max Load Current Inrush
    200A
    THS422C Max Load Current Steady
    20A
    THS422C Time Delay Range Max
    60s
    THS422C Time Delay Range Min
    0.5s
    Terminations
    0.25 in. (6.35 mm) male quick connect terminals
    Time Delay Vs Temp Voltage
    ≤ ±10%
    Tolerance
    ≤ ± 5%
    Voltage Drop
    ≅ 2.5V at rated current

    Products Detail

    The THC/THS Series combines a solid-state relay and timer for single shot operation, providing time delays from 0.1 to 600 seconds in four adjustable ranges. It can directly control lamp or heater loads up to 20A steady and 200A inrush, suitable for applications requiring fast initiate response like coin vending. Features include repeat accuracy ±2%, factory calibration ±5%, compact design for OEM flexibility, high load currents without contactors, totally solid state encapsulation for durability, and metalized mounting surface for heat transfer.

    Key Features

    • Repeat accuracy + / - 2%, Factory calibration + / - 5%, Compact, low cost design, High load currents up to 20A, 200A inrush, Totally solid state and encapsulated, Metalized mounting surface

    Application scenarios

    • coin vending applications

    Documents

    Datasheets:

    THC, THS Series Datasheet
    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method

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