Mini 12V Delay OFF Timer Relay 1–50s SMD Kit 10A Switch Module Car Universal

Compact SMD Delay OFF timer relay designed for automotive and general 12V DC applications. The relay activates immediately when power is applied and automatically switches OFF after the preset delay time, making it ideal for lighting, fans, automation, and other timed control circuits.

✔ Adjustable delay time: 1–50 seconds
✔ High-current relay rated up to 20A
✔ Compact SMD PCB design
✔ Reverse polarity protection
✔ Easy trimmer adjustment
✔ Reliable relay switching
✔ Universal 12V DC operation

• 🔴 Red wire → +12V DC
• ⚫ Black wire → Ground (0V)

The module includes reverse polarity protection.

• ⚪ White wires → Normally Open (NO) relay contacts

Connect the load through the two white wires.

The delay is adjusted using the onboard blue/white trimmer.

• Clockwise → Increases delay time
• Counterclockwise → Decreases delay time

Adjustment range:

• Approximately 1–50 seconds

1. Apply 12V DC power.
2. The relay activates immediately.
3. The Normally Open (NO) contact closes and remains closed for the preset delay.
4. When the delay expires, the relay releases and the NO contact opens automatically, even if power is still applied.
5. Disconnecting and reapplying power starts a new timing cycle.

✔ Automotive lighting control
✔ Delay OFF circuits
✔ Cooling fan control
✔ Alarm systems
✔ LED lighting projects
✔ DIY electronics
✔ Industrial and automation projects

• Designed for 12V DC systems only
• Maximum relay load: 20A
• Use an appropriate fuse for load protection
• Verify wiring polarity before powering the module
• The module is supplied as a PCB only (no plastic enclosure)

• 1× Micro SMD Delay OFF Timer Relay
• Wiring diagram and user instructions

All items will undergo thorough inspection before packing to ensure they are of high quality. The item will be shipped within 1 business day upon receipt of payment, excluding weekends and public holidays. We offer worldwide shipping via A1 Post. The estimated delivery times are approximately:

• 7-14 business days to the UK
• 7-14 business days to Germany
• 10-24 business days to the Australia/Canada
• 10-15 business days to USA
• 5-14 business days to Europe
• 14-24 business days worldwide

Please note that these are approximate delivery times, and actual delivery may vary depending on the destination and other factors. Thank you for your understanding.

We provide a 30-day warranty for the exchange of defective, malfunctioning, incorrect, or parts-missing items. If you encounter any issues with your item, please contact us directly, and we will promptly find the right solution for you. This approach will expedite the resolution process. We are committed to assisting you throughout the entire process. Kindly refrain from initiating a return request through , as it may adversely affect our business. Thank you for your understanding and cooperation!

Your satisfaction is our top priority, and we strive to provide you with the best possible experience. We would greatly appreciate it if you could take a moment to leave us positive response, sharing your experience with our items. Your response is invaluable and contributes to the growth of our business.

In the event of any challenges or concerns with your order, we kindly request that you contact us before leaving neutral or negative response. We are open to hearing your ideas and advice, as we are committed to addressing any issues and ensuring your satisfaction.

We are a company based in Bulgaria with 10 years of experience in designing and manufacturing electronic kits, timers, thermostats and many other devices. Our company has been dedicated to designing and manufacturing high-quality electronics. With over 10 years of experience in this field, we have gained a deep understanding of the needs and preferences of our customers, and we pride ourselves in providing our customers with fast, reliable and safe shipping for their purchases. Whether you\'re looking for a car timer or a thermostat to manage your heating and cooling, we have the expertise and technology to provide you with the perfect product and solution for your needs. Choose our company for quality electronics and devices, backed by a decade of experience and a commitment to customer satisfaction!