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CIT Relay and Switch A21ASQ24VDC19D Automotive Relay

This automotive relay features quick connect terminals and a single-pole single-throw normally open contact arrangement. Operating at 24 V DC with a 40 A current rating, it offers reliable switching for automotive and lighting applications. The relay is sealed for protection, with a coil power consumption of 1.9 W and coil suppression using a diode connected to terminal '86'. Suitable for demanding automotive environments, it ensures durability with a compact design, high switching capacity, and compliance with safety standards, making it ideal for vehicle electronics and accessory controls.

Authorized Distributors
Source:DigiKey
Part No:A21ASQ24VDC1.9D
Stock:0
Inv Date:05-30-2026
Price: Unit price: $1.71613
Buy/RFQ:

CIT Relay and Switch A21ASQ24VDC19D Automotive Relay Specifications:

  • Dimensions: 26.0 x 26.0 x 24.5 mm
  • Coil Voltage: 24 VDC
  • Coil Power: 1.9 W
  • Coil Resistance: 303.2 Ω +/- 10%
  • Contact Arrangement: SPST N.O.
  • Maximum Switching Power: 630 W
  • Maximum Switching Current: 40 A at 14 VDC
  • Contact Resistance: < 30 milliohms
  • Contact Material: AgSnO2
  • Electrical Life: 100K cycles, typical
  • Mechanical Life: 10M cycles, typical
  • Insulation Resistance: 100 MΩ min. @ 500VDC
  • Dielectric Strength: 750V rms min. @ sea level
  • Operating Temperature: -40°C to +125°C
  • Storage Temperature: -40°C to +155°C
  • Shock Resistance: 147 m/s² for 11 ms
  • Vibration Resistance: 1.5 mm double amplitude, 10-40Hz
  • Terminal Strength: 8N (quick connect), 4N (PCB pin)
  • Sealed: Yes
  • Coil Suppression: Diode connected to terminal 86
  • Certifications: RoHS compliant

Buy the Automotive Relay 24VDC – Reliable Automotive Switch for Industrial Applications

Purchase this automotive relay online today and ensure reliable control for your vehicle or industrial automation systems. Featuring a 24V DC coil, 40A switching capacity, sealed construction, and coil suppression diode, it offers durability and high performance. Easy to install with quick connect terminals and a compact design, this relay is perfect for automotive lighting, accessories, and control systems. Order now and benefit from fast shipping and exceptional quality that meets safety standards.

Buy CIT relay with 24VDC coil and 40A switching capacity now and experience unmatched reliability and performance in automotive and industrial applications.

Frequently Asked Questions

Where can I buy CIT Relay and Switch A21ASQ24VDC19D?

You can click on the BUY or RFQ button to purchase A21ASQ24VDC19D from an authorized CIT Relay and Switch distributor.

How do I troubleshoot issues or seek technical support for part A21ASQ24VDC19D?

You can download the A21ASQ24VDC19D datasheet or visit the CIT Relay and Switch website for support.

Who is the manufacturer of A21ASQ24VDC19D?

CIT Relay and Switch

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