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CIT Relay and Switch A21ACQ24VDC19R Automotive Relay

This 24 VDC automotive relay features a quick connect terminal for easy installation. It has a single pole, single throw contact arrangement with a maximum switching current of 40A, suitable for automotive and lamp accessories. The relay is sealed with a dust cover, operates within -40°C to +125°C, and is manufactured under QS-9000 and ISO-9002 standards. It includes a coil power of 1.9 W, and coil suppression options with a resistor of 680 Ohms for enhanced performance and reliability in demanding environments.

Authorized Distributors
Source:DigiKey
Part No:A21ACQ24VDC1.9R
Stock:0
Inv Date:05-30-2026
Price: Unit price: $1.66578
Buy/RFQ:

CIT Relay and Switch A21ACQ24VDC19R Automotive Relay Specifications:

  • Dimensions: 26.0 x 26.0 x 24.5 mm (39.5 mm including mounting features)
  • Operating Temperature: -40°C to +125°C
  • Weight: 31g
  • Contact Arrangement: SPST N.O.
  • Maximum Switching Power: 630W
  • Maximum Switching Current: 40A @ 14VDC
  • Contact Resistance: < 30 milliohms
  • Coil Resistance: 15.6 Ohms at 12VDC
  • Coil Power: 1.9W
  • Coil Voltage: 24VDC
  • Dielectric Strength: 750V rms coil to contact
  • Insulation Resistance: 100MΩ min. @ 500VDC
  • Shock Resistance: 147m/s2 for 11 ms
  • Vibration Resistance: 1.5mm double amplitude, 10–40Hz
  • Sealed with dust cover
  • Manufacturing Certifications: QS-9000, ISO-9002

Buy the Automotive Relay Series A2 24VDC: A21ACQ24VDC19R

Purchase the CIT Series A2 24VDC automotive relay online now to ensure reliable switching for automotive and lamp accessories. This sealed relay with a quick connect terminal handles up to 40A and features a dust cover for protection against dust and moisture. Its compact design measures 26 x 26 x 24.5 mm, making it perfect for installation in tight spaces. The relay has a coil power of 1.9W, an insulation resistance of over 100MΩ, and meets stringent QS-9000 and ISO-9002 standards. Replace your old relay with this high-quality component for long-lasting performance.

Get CIT Relay Series A2 24VDC automotive relay today—built for reliable switching and sealed durability in automotive and lighting systems.

Frequently Asked Questions

Where can I buy CIT Relay and Switch A21ACQ24VDC19R?

You can click on the BUY or RFQ button to purchase A21ACQ24VDC19R from an authorized CIT Relay and Switch distributor.

How do I troubleshoot issues or seek technical support for part A21ACQ24VDC19R?

You can download the A21ACQ24VDC19R datasheet or visit the CIT Relay and Switch website for support.

Who is the manufacturer of A21ACQ24VDC19R?

CIT Relay and Switch

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