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Battery-Free NFC Passive Smart Lock - High-Reliability Access Control | China Suppliers & Factory
Product Overview
The 40NFC Passive Smart Padlock solves the pain points of traditional active smart locks (such as external power supply/battery dependency, complex maintenance, and poor anti-interference performance). It operates by harvesting energy from mobile phone NFC, achieving battery-free, maintenance-free, and high-reliability access control.
Product Models
| Model | Description |
|---|---|
| CRT-NSG200NFC | Plastic housing |
| CRT-NJG200NFC | Middle-frame metal housing |
| CRT-NSG200-J | Built-in mechanical lock cylinder |
Technical Specifications
| Parameter | Specification |
|---|---|
| Lock Beam Material | 304 Stainless Steel |
| Lock Body Material | ABS + PC |
| Working Voltage | 2.2V ~ 3.3V |
| Working Current | < 100mA |
| Operating Temp/Humidity | -40℃ ~ 80℃; 20% ~ 98% RH |
| Switching Cycles | ≥ 20,000 times |
| Power Supply | Mobile Phone NFC Energy Harvesting |
| Protection Level | IP65 |
| Unlocking Time | ≤ 2 seconds |
| Key Protection | National Cryptographic Standard 4 |
| Operating Distance | Tap Distance ≤ 1cm |
| Working Frequency | 13.56MHz |
| Core Features | Battery-free, Maintenance-free, High Reliability, Eco-friendly |
Precautions
- 1 Align the mobile phone’s NFC area with the padlock’s NFC zone (marked "This side outward" on the lock body).
- 2 The padlock harvests energy via NFC and receives the unlock command.
- 3 Hold the lock body and pull down the lock beam to unlock.
Frequently Asked Questions (FAQ)
Q1: How does the passive smart padlock function without a battery?
A1: It utilizes NFC energy harvesting technology. By tapping a mobile phone against the padlock's NFC zone, the padlock draws the necessary operating power directly from the phone to execute the unlock command.
Q2: What materials are used to construct the padlock?
A2: The lock beam is made of durable 304 Stainless Steel, and the lock body is constructed from a robust ABS + PC blend, ensuring high physical resistance.
Q3: Can this padlock withstand outdoor and extreme weather conditions?
A3: Yes. The padlock features an IP65 protection level and is designed to operate in temperatures ranging from -40℃ to 80℃ with humidity levels between 20% and 98% RH.
Q4: What models of the 40NFC padlock are available?
A4: There are three main models: CRT-NSG200NFC (plastic housing), CRT-NJG200NFC (middle-frame metal housing), and CRT-NSG200-J (featuring a built-in mechanical lock cylinder).
Q5: How fast is the unlocking response, and is the connection secure?
A5: The unlocking time is extremely fast at ≤ 2 seconds. The security is backed by the National Cryptographic Standard 4 to prevent unauthorized access.