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CIT Relay and Switch A21ASP24VDC19R Automotive Relay

This 24VDC automotive relay with PCB terminals features a single-pole, single-throw normally open contact configuration rated for 40A. It is sealed for environmental protection and designed for high switching capacity. The relay operates with a coil power of 1.9W and incorporates a 680 Ohm resistor for coil suppression, making it suitable for automotive and lighting applications. Compact with dimensions of approximately 26x26x24.5 mm, it provides reliable switching performance in demanding conditions and is certified for industrial use, ensuring durability and safety.

Authorized Distributors
Source:DigiKey
Part No:A21ASP24VDC1.9R
Stock:0
Inv Date:05-30-2026
Price: Unit price: $1.71613
Buy/RFQ:

CIT Relay and Switch A21ASP24VDC19R Automotive Relay Specifications:

  • Dimensions: 26.0 x 26.0 x 24.5 mm
  • Contact Arrangement: SPST N.O.
  • Maximum Switching Power: 630W
  • Contact Resistance: <30 milliohms
  • Contact Material: AgSnO2
  • Contact Rating: 40A @ 14VDC
  • Coil Voltage: 24VDC
  • Coil Power: 1.9W
  • Coil Resistance: 680 Ohms
  • Release Time: 10-16.8 ms
  • Operate Time: 8.4 ms
  • Electrical Life: 100K cycles
  • Mechanical Life: 10M cycles
  • Insulation Resistance: >100MΩ at 500VDC
  • Dielectric Strength: 750V rms coil to contact, 500V rms contact to contact
  • Operating Temperature: -40°C to +125°C
  • Storage Temperature: -40°C to +155°C
  • Shock Resistance: 147 m/s² for 11 ms
  • Vibration Resistance: 1.5mm amplitude at 10-40Hz
  • Weight: Compact, approximately 50 grams

Buy the Citrelay 24VDC 1.9W – Reliable Automotive Switch for Industrial Applications

Experience reliable switching performance with this 24VDC automotive relay featuring a 40A rating, sealed design, and coil suppression resistor. Perfect for automotive, lighting, and industrial applications, the relay ensures durability and efficiency. Its compact size of 26x26x24.5 mm allows easy integration into various systems. The high-quality AgSnO2 contacts and robust construction enable it to withstand demanding conditions, providing consistent operation over extensive cycles. Buy online now to enhance your automotive or industrial projects with trusted relay technology.

Get Citrelay 24VDC 1.9W today—built for precision and long-lasting durability in automotive and industrial environments.

Frequently Asked Questions

Where can I buy CIT Relay and Switch A21ASP24VDC19R?

You can click on the BUY or RFQ button to purchase A21ASP24VDC19R from an authorized CIT Relay and Switch distributor.

How do I troubleshoot issues or seek technical support for part A21ASP24VDC19R?

You can download the A21ASP24VDC19R datasheet or visit the CIT Relay and Switch website for support.

Who is the manufacturer of A21ASP24VDC19R?

CIT Relay and Switch

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