ZHT103 5A Single-Phase AC Current Sensor Module | Compoden
ZHT103 5A Single-Phase AC Current Sensor Module — Analog Output
The ZHT103 is a compact AC current sensor module designed to measure alternating current up to 5 amps in single-phase circuits. It outputs an analog voltage proportional to the measured current, making it easy to interface with microcontrollers like Arduino or ESP32 for power monitoring, energy auditing, or motor control feedback systems. With built-in isolation, it provides a safe and non-invasive way to track current without direct contact.
Key Specifications
| Specification | Value |
|---|---|
| Measurement Range | 0 to 5A AC |
| Output Type | Analog Voltage (0–1V RMS proportional) |
| Sensitivity | 185 mV/A (typical) |
| Supply Voltage | 5V DC |
| Frequency Range | 50Hz / 60Hz |
| Accuracy | ±1% (at rated current) |
What You Can Build With This
- DIY home energy monitor to track appliance power consumption.
- Overcurrent protection circuit for motors or power supplies.
- Smart irrigation system with pump current sensing.
- Real-time electricity usage logger with IoT dashboard.
Compatibility
This module works with any microcontroller that has an analog-to-digital converter (ADC), such as Arduino Uno, Nano, ESP8266, ESP32, or Raspberry Pi Pico. It requires a 5V supply and outputs a voltage within 0–1V RMS, which can be read directly via ADC; for 3.3V systems, a level shifter may be needed. Commonly paired with relay modules for full control and monitoring of AC loads.
Wiring Notes
Connect the sensor’s VCC to 5V, GND to ground, and the analog output (OUT) to an ADC pin. Since the output is AC, you’ll need to sample it rapidly and calculate RMS in software; no external pull-ups are required. Ensure the measured current does not exceed 5A to avoid saturation.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, connect the analog output to any Arduino ADC pin and use a 5V supply. Sample the AC waveform to calculate RMS current.
Can it measure DC current?
No, this sensor is designed for AC only (50/60 Hz). For DC current measurement, consider a hall-effect sensor like the ACS712.
Do I need any external components?
No additional components are required; the module is ready to use. Just connect power, ground, and signal to your microcontroller.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items