12V DC Solenoid for Electric Door Lock
12V DC Solenoid for Electric Door Lock
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Looking to buy 12V DC Solenoid for Electric Door Lock at the best price in India? Tech Depot India offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Secure your doors, cabinets, and enclosures with this reliable 12V DC solenoid lock from Tech Depot India, Bengaluru. This electromagnetic solenoid actuator is designed for electric door lock applications - delivering strong holding force, quick response, and easy integration with microcontrollers like Arduino, ESP32, and Raspberry Pi. Ideal for smart home projects, automated access control systems, and security installations.
Specifications
| Component Type | DC Solenoid Lock (Electromagnetic Actuator) |
| Operating Voltage | 12V DC |
| Current Draw | ~500mA (typical at 12V) |
| Lock Type | Fail-secure (locked when de-energized, unlocks when powered) |
| Stroke Length | ~10mm |
| Holding Force | ~10N (approximately 1 kg) |
| Response Time | <0.5 seconds |
| Duty Cycle | Intermittent (not designed for continuous energization) |
| Body Material | Metal housing with spring-return plunger |
| Mounting | Screw-mount with standard mounting holes |
| Wire Length | ~20cm with tinned leads |
| Compatible Controllers | Arduino, ESP32, ESP8266, Raspberry Pi, PLC (via relay or MOSFET driver) |
| Origin | Original / Authentic |
Why Choose 12V DC Solenoid for Electric Door Lock?
100% Authentic
GST Invoice - A GST invoice is included with every order.
Expert Support - Dedicated technical help on WhatsApp and email.
Pan-India Delivery - Shipped across Bengaluru, Delhi NCR, Hyderabad and all of India.
Trusted by Makers - Used by students, hobbyists and professionals nationwide.
Key Features of 12V DC Solenoid for Electric Door Lock
- 12V DC Operation: Standard voltage compatible with most power supplies, batteries, and microcontroller relay modules.
- Fail-Secure Design: The bolt remains extended (locked) when power is off and retracts (unlocks) when 12V is applied - ensuring security during power outages.
- Spring-Return Mechanism: Built-in return spring automatically re-extends the bolt when power is removed, providing reliable locking without continuous power.
- Quick Response: Sub-half-second actuation time for near-instant locking and unlocking.
- Compact & Lightweight: Small form factor fits easily into door frames, cabinets, drawers, lockers, and custom enclosures.
- Easy Wiring: Simple 2-wire connection - just supply 12V DC through a relay, MOSFET, or transistor driver circuit.
- Microcontroller Friendly: Drive it with Arduino, ESP32, or Raspberry Pi using a relay module, TIP120 transistor, or IRF540N MOSFET with a flyback diode for protection.
- Durable Metal Construction: Sturdy metal housing and hardened plunger bolt built for repeated actuation cycles.
- Screw-Mount Installation: Standard mounting holes for quick and secure installation on wood, metal, or plastic surfaces.
- Widely used and well-documented - extensive community tutorials and code examples available for Arduino and ESP32.
- Affordable and reliable solution for both DIY hobbyists and professional security installations.
How It Works
This solenoid lock operates on a simple electromagnetic principle. When 12V DC is applied to the coil, a magnetic field is generated that pulls the metal plunger (bolt) inward against the spring, retracting it and unlocking the door. When power is removed, the internal spring pushes the bolt back out into the locked (extended) position. This fail-secure behavior means the lock stays locked even during power failures.
Important: Since the solenoid coil is an inductive load, always use a flyback diode (such as 1N4007) across the solenoid terminals to protect your driver transistor, MOSFET, or relay from voltage spikes when the solenoid is de-energized.
Typical Wiring Guide
- With Relay Module (Recommended for Beginners): Connect the Arduino/ESP32 digital pin to the relay module input. Connect the solenoid's two wires to the relay's NO (Normally Open) and COM terminals. Supply 12V DC to COM through the relay. When the microcontroller sends a HIGH signal, the relay closes and the solenoid unlocks.
- With MOSFET/Transistor Driver: Use an N-channel MOSFET (e.g., IRF540N) or NPN transistor (e.g., TIP120). Connect the gate/base to the microcontroller pin via a resistor. Connect the solenoid between 12V supply and the MOSFET drain. Place a 1N4007
Frequently Asked Questions
Is technical support available?
Yes, responsive support via email and WhatsApp for setup, troubleshooting, and application guidance.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Customer Support
Email: techdepotindia@gmail.com
WhatsApp: Available for setup and troubleshooting help
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