THDB421A [Littelfuse]

Name: THDB421A
Brand: Littelfuse
SKU: THDB421A
Availability: InStock

Part No:

THDB421A

Relays, Contactors & Solenoids

Manufacturer:

Littelfuse

Description:

The THDB Series combines accurate timing circuitry with high power, solid-state switching for direct operation of motors, lamps, and heaters without a contactor.

Datasheet:

Product FAQ

1. Is THDB421A available for RFQ?

Yes. THDB421A 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 THDB421A?

Pricing for THDB421A 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 THDB421A?

THDB421A is a Littelfuse Relays, Contactors & Solenoids with Factory Calibration Tolerance: ≤ ±1% and Max Load Current Steady State: 6A, 10A, 20A. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for THDB421A?

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 THDB421A 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 THDB421A?

Yes. If THDB421A 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:

THDB421A

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.

The THDB Series is a dedicated delay-on-break time delay relay that uses microcontroller-based timing circuitry with solid-state switching. It allows direct operation of high current loads like motors, lamps, and heaters up to 20A steady state and 200A inrush without a contactor. Features include repeat accuracy of ±0.5%, factory calibration of ±1%, encapsulation for protection against shock, vibration, and humidity, compact design for OEM applications, and metalized mounting surface for heat transfer. Benefits include reduced labor and component costs, increased reliability, and no moving parts to wear out.