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1-Channel DC 3V Optocoupler Relay
$1.90
Description
Single 3V High Level Relay Isolation Control Module is a compact and reliable switching board designed for microcontroller-based applications. It features optocoupler isolation for enhanced safety and interference resistance. The module supports high-level trigger input and can directly connect to MCU IO ports.
Built with EL817 optocoupler and SRD-DC03V-SL-C relay, it ensures stable performance and long operational life. With diode freewheeling protection and fast response time under 20ms, it is ideal for automation, DIY electronics, and embedded control systems. Screw terminals provide secure wiring, and mounting holes allow easy installation in projects.
Features:
- High-level trigger control
- Optocoupler isolation (EL817)
- Supports DC 3V / 3.3V input
- Controls 10A high load
- Fast response time (<20ms)
- Diode freewheeling protection
- Screw terminal output connection
- Onboard signal indicator LED
Specifications
| Model No. / Name: | SRD DC03V SL C |
| No. of Channels: | 1 Channel |
| Operating Voltage (VDC): | DC 3V /3.3V |
| Voltage(V) | 10A 30VDC(max) |
| Response Time (mS) | <20 |
| Length (mm): | 70 |
| Width (mm): | 17 |
| Weight (g): | 19 |
| Operating Voltage (V): | 2.7~5.5 |
| Dimensions (L x W x H) mm | 170 x 130 x 130 |
| Installation | Tool-Free, Easy Replacement |
| Shipping Weight | 0.022 kg |
| Dimensions | 14 × 5 × 4 cm |
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