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CIT Relay and Switch A21ASP24VDC19D Automotive Relay

This 24 V DC automotive relay features a single pole single throw N.O. contact configuration, PCB pin terminals, and a sealed construction for durability. Designed for automotive and industrial applications, it provides a high switching capacity of up to 40 A and includes a diode for coil suppression, ensuring reliable operation. The relay operates with a coil power of 1.9 W and is built to withstand temperatures from -40°C to +125°C, making it ideal for demanding environments. Its compact size and robust design support various control and switching tasks.

Authorized Distributors
Source:DigiKey
Part No:A21ASP24VDC1.9D
Stock:400
Inv Date:05-30-2026
Price: Unit price: $2.22
Buy/RFQ:

CIT Relay and Switch A21ASP24VDC19D Automotive Relay Specifications:

  • Contact Arrangement: SPST N.O.
  • Maximum Switching Power: 630W
  • Maximum Switching Current: 40A at 14VDC
  • Coil Voltage: 24VDC
  • Coil Power: 1.9W
  • Contact Resistance: <30 milliohms
  • Contact Material: AgSnO2
  • Insulation Resistance: 100MΩ min. at 500VDC
  • Dielectric Strength: 750V rms min. coil to contact, 500V rms min contact to contact
  • Operating Temperature: -40°C to +125°C
  • Storage Temperature: -40°C to +155°C
  • Shock Resistance: 147m/s² for 11 ms
  • Vibration Resistance: 1.5mm double amplitude, 10-40Hz
  • Weight: Approximately specified externally
  • Dimensions: 26.00 x 26.00 x 24.5 mm (referenced from datasheet)
  • Sealed and dust cover options available
  • Includes diode suppression (1N4005) with cathode on '86' terminal

Buy the Cit Relay Series Automotive Relay 24VDC 40A: A21ASP24VDC19D

Purchase the Cit Relay A21ASP24VDC19D online today to benefit from its robust sealed construction, 40A switching capacity, coil suppression diode, and compact size. Ideal for automotive, industrial, and control systems, this relay offers quick installation with PCB pins or quick connect options. Designed to operate reliably from -40°C to +125°C, it ensures long-lasting performance in harsh environments. Secure your electrical projects now with this dependable relay and enjoy fast delivery, trusted quality, and seamless online shopping for your switching and control needs.

Order your Cit Relay A21ASP24VDC19D today and ensure dependable switching with its sealed design and 40A capacity for demanding control tasks.

Frequently Asked Questions

Where can I buy CIT Relay and Switch A21ASP24VDC19D?

You can click on the BUY or RFQ button to purchase A21ASP24VDC19D from an authorized CIT Relay and Switch distributor.

How do I troubleshoot issues or seek technical support for part A21ASP24VDC19D?

You can download the A21ASP24VDC19D datasheet or visit the CIT Relay and Switch website for support.

Who is the manufacturer of A21ASP24VDC19D?

CIT Relay and Switch

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