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CIT Relay and Switch A21ASP24VDC19 Automotive Relay

This 24 V DC automotive relay provides reliable switching with a 40A capacity and a sealed design for durability. It features a compact size with PCB pin terminals, suitable for automotive and lamp applications. The relay incorporates a SPST normally open contact arrangement, coil power of 1.9W, and standard coil suppression for dependable operation. It operates within a temperature range of -40°C to +125°C and offers high contact resistance low contact resistance, making it ideal for automotive electronics and industrial control systems requiring robust switching performance and sealed construction.

Authorized Distributors
Source:DigiKey
Part No:A21ASP24VDC1.9
Stock:379
Inv Date:05-30-2026
Price: Unit price: $2.16
Buy/RFQ:

CIT Relay and Switch A21ASP24VDC19 Automotive Relay Specifications:

  • Contact Arrangement: SPST N.O.
  • Maximum Switching Power: 630W
  • Maximum Switching Voltage: 75VDC
  • Maximum Switching Current: 40A @ 14VDC
  • Contact Resistance: < 30 milliohms
  • Contact Material: AgSnO2
  • Coil Voltage: 24VDC
  • Coil Power: 1.9W
  • Coil Resistance: 303.2Ω ± 10%
  • Release Time: 8.4 ms
  • Operate Time: 8.4 ms
  • Electrical Life @ rated load: 100,000 cycles
  • Mechanical Life: 10 million cycles
  • Insulation Resistance: 100MΩ min @ 500VDC
  • Dielectric Strength: 750V rms min coil to contact, 500V rms contact to contact
  • Operating Temperature: -40°C to +125°C
  • Storage Temperature: -40°C to +155°C
  • Weight: Not specified
  • Sealed: Yes
  • Terminations: PCB pins or quick connect
  • Certification: Not specified but suitable for automotive and industrial standards

Buy the CIT Relay Series A2 Automotive Relay: A21ASP24VDC19

Discover the reliable and durable 24 V DC automotive relay designed for automotive and industrial applications. With a switching capacity of 40A and sealed construction, this relay ensures optimal performance under various conditions. Its PCB pin terminals and standard coil suppression enhance ease of installation and operation, making it perfect for automotive electronics, lighting systems, and control panels. Purchase online today to experience high-quality, dependable switching solutions built to meet demanding environments and ensure your systems' safety and efficiency.

Order your CIT Relay Series A2 automotive relay with 24VDC coil and 40A capacity today and ensure your vehicle or industrial system operates reliably with high-quality switching performance.

Frequently Asked Questions

Where can I buy CIT Relay and Switch A21ASP24VDC19?

You can click on the BUY or RFQ button to purchase A21ASP24VDC19 from an authorized CIT Relay and Switch distributor.

How do I troubleshoot issues or seek technical support for part A21ASP24VDC19?

You can download the A21ASP24VDC19 datasheet or visit the CIT Relay and Switch website for support.

Who is the manufacturer of A21ASP24VDC19?

CIT Relay and Switch

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