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CIT Relay and Switch A21CSQ12VDC16D Automotive Relay

This automotive relay with quick connect terminals features a single pole double throw contact arrangement and operates at 12 VDC. Capable of handling up to 40 A, it is sealed for protection, lightweight, and suitable for automobile and lamp accessories. The relay includes a 1.6 W coil with coil suppression via a diode (1N4005), ensuring reliable switching and durability. With RoHS compliance, it offers a maximum switching power of 630W and is designed for high-current applications with a compact size and robust construction for automotive electrical systems.

Authorized Distributors
Source:DigiKey
Part No:A21CSQ12VDC1.6D
Stock:7119
Inv Date:05-30-2026
Price: Unit price: $2.52
Buy/RFQ:
Part No:A21CSQ12VDC1.6D
Stock:0
Inv Date:05-30-2026
Price: Unit price: $2.17
Buy/RFQ:
Part No:A21CSQ12VDC1.6D
Stock:0
Inv Date:05-30-2026
Price: Unit price: $2.17
Buy/RFQ:

CIT Relay and Switch A21CSQ12VDC16D Automotive Relay Specifications:

  • Dimensions: 26.09 x 26.00 x 24.50 mm
  • Contact Arrangement: SPDT (single pole double throw)
  • Maximum Switching Power: 630W
  • Maximum Switching Current: 40A @ 14VDC
  • Coil Voltage: 12VDC
  • Coil Resistance: 15.6Ω
  • Coil Power: 1.6W
  • Operating Temperature: -40°C to +125°C
  • Storage Temperature: -40°C to +155°C
  • Weight: 31g
  • Sealed for protection
  • RoHS compliant
  • Contact Resistance: <30 milliohms initially
  • Insulation Resistance: 100MΩ min. @ 500VDC
  • Dielectric Strength: 750V rms coil to contact
  • Endurance: 100,000 cycles (electrical), 10 million cycles (mechanical)

Buy the Automotive Series Relay: SPDT 12VDC High-Current Switch A21CSQ12VDC16D

Purchase the CIT Relay automotive relay with quick connect terminals today for high-current switching needs. Designed for automotive and lighting applications, it features a 12VDC coil, 40A switching capacity, sealed construction, and coil suppression with a 1N4005 diode. Compact and RoHS certified, this relay ensures reliable operation in extreme temperatures with a long service life. Ideal for automotive wiring, lighting control, and other high-current switching environments, available for immediate online ordering for fast installation and durability.

Buy CIT Relay automotive relay with quick connect terminals and 40A capacity now and experience unmatched reliability and performance in your vehicle or lighting systems.

Frequently Asked Questions

Where can I buy CIT Relay and Switch A21CSQ12VDC16D?

You can click on the BUY or RFQ button to purchase A21CSQ12VDC16D from an authorized CIT Relay and Switch distributor.

How do I troubleshoot issues or seek technical support for part A21CSQ12VDC16D?

You can download the A21CSQ12VDC16D datasheet or visit the CIT Relay and Switch website for support.

Who is the manufacturer of A21CSQ12VDC16D?

CIT Relay and Switch

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