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CIT Relay and Switch A21ACQ24VDC19 Automotive Relay

This 24 V DC automotive relay features a quick connect terminal for easy installation and a single pole single throw normally open contact configuration capable of handling up to 40 A. It is designed for automotive and lamp applications, providing a large switching capacity with a compact, lightweight design. The relay includes a dust cover for sealing, operates with a 1.9 W coil, and incorporates standard coil suppression. Suitable for high-current switching in automotive electrical systems, it is RoHS compliant and certified to ISO-9002 standards, ensuring reliability and durability.

Authorized Distributors
Source:DigiKey
Part No:A21ACQ24VDC1.9
Stock:0
Inv Date:05-30-2026
Price: Unit price: $1.61533
Buy/RFQ:

CIT Relay and Switch A21ACQ24VDC19 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
  • Storage Temperature: -40°C to +155°C
  • Contact Arrangement: SPST N.O.
  • Maximum Switching Power: 630W
  • Maximum Switching Voltage: 75VDC
  • Contact Resistance: < 30 milliohms
  • Contact Material: AgSnO2
  • Contact Rating: 40A @ 14VDC
  • Coil Voltage: 24VDC
  • Coil Resistance: 31.2 ohms
  • Coil Power: 1.9W
  • Pick Up Voltage: 360 VDC, Release Voltage: 303.2 VDC
  • Electrical Life: 100,000 cycles at rated load
  • Mechanical Life: 10 million cycles
  • Insulation Resistance: >100MΩ @ 500VDC
  • Dielectric Strength: 750V rms coil to contact, 500V rms contact to contact
  • Shock Resistance: 147 m/s² for 11 ms
  • Vibration Resistance: 1.5mm double amplitude, 10-40Hz
  • Weight: 31g

Buy the Cit Relay Series A2 Automotive Relay: A21ACQ24VDC19

Purchase the Cit Relay Series A2 automotive relay with 24VDC voltage, 40A switching capacity, and quick connect terminals. This compact relay offers high durability, sealed design with a dust cover, and efficient coil operation at 1.9W. Suitable for automotive and lamp applications, it ensures reliable switching with high electrical and mechanical life ratings. RoHS compliant and certified under ISO-9002 standards, it is ideal for demanding environments where dependable performance is essential. Order online now for fast shipping and easy integration into your system.

Get Cit Relay Series A2 automotive relay with 40A capacity and quick connect terminals today—built for automotive durability and reliable switching.

Frequently Asked Questions

Where can I buy CIT Relay and Switch A21ACQ24VDC19?

You can click on the BUY or RFQ button to purchase A21ACQ24VDC19 from an authorized CIT Relay and Switch distributor.

How do I troubleshoot issues or seek technical support for part A21ACQ24VDC19?

You can download the A21ACQ24VDC19 datasheet or visit the CIT Relay and Switch website for support.

Who is the manufacturer of A21ACQ24VDC19?

CIT Relay and Switch

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