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CIT Relay and Switch A21CSQ24VDC19R Automotive Relay

This 24 V DC automotive relay features a single-pole double-throw (SPDT) contact configuration and a 40 A switching capacity. Designed for automotive and lamp applications, it includes quick connect terminals for easy installation and a sealed construction for protection against dust and moisture. The relay operates with a coil power of 1.9 W, and incorporates a resistor coil suppression for reliable operation. It is suitable for high-current switching, has a compact size, and is capable of withstanding demanding automotive environments ensuring durability and performance.

Authorized Distributors
Source:DigiKey
Part No:A21CSQ24VDC1.9R
Stock:0
Inv Date:05-30-2026
Price: Unit price: $1.9332
Buy/RFQ:

CIT Relay and Switch A21CSQ24VDC19R Automotive Relay Specifications:

  • Contact Arrangement: SPDT
  • Maximum Switching Power: 630W
  • Contact Rating: 40A @ 14VDC
  • Coil Voltage: 24VDC
  • Coil Power: 1.9W
  • Coil Resistance: 680 Ohms
  • Sealing: Sealed
  • Contact Material: AgSnO2
  • Contact Resistance: < 30 milliohms
  • Electrical Life: 100K cycles, typical
  • Mechanical Life: 10M cycles, typical
  • Insulation Resistance: 100MΩ min. @ 500VDC
  • Dielectric Strength, Coil to Contact: 750V rms min.
  • Operating Temperature: -40°C to +125°C
  • Storage Temperature: -40°C to +155°C
  • Weight: Approximate weight based on model
  • Size: 26.0 x 26.0 x 24.5 mm

Buy the Cit Relay Series Automotive Relay: A21CSQ24VDC19R

Order the Cit Relay automotive relay online today for dependable performance in demanding automotive and industrial applications. Featuring a 40A switching capacity, sealed construction, quick connect terminals, and coil resistance suited for 24VDC systems, this relay offers durability and reliability. Ideal for automotive and lamp accessory applications, it ensures safe, high-current switching with thermal stability from -40°C to +125°C. Easy to install, compact, and certified, it delivers top performance for professional and DIY projects alike.

Get Cit Relay automotive relay today—built for precision and long-lasting durability with sealed design and high-current switching capabilities.

Frequently Asked Questions

Where can I buy CIT Relay and Switch A21CSQ24VDC19R?

You can click on the BUY or RFQ button to purchase A21CSQ24VDC19R from an authorized CIT Relay and Switch distributor.

How do I troubleshoot issues or seek technical support for part A21CSQ24VDC19R?

You can download the A21CSQ24VDC19R datasheet or visit the CIT Relay and Switch website for support.

Who is the manufacturer of A21CSQ24VDC19R?

CIT Relay and Switch

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