1/3/5/10PCS ACS712 5A 20A 30A Hall Effect Current Sensor Module AC DC Current Measurement Board for Arduino
ACS712 20A / 3PCS / China Mainland
$19.17
Sale price
$19.17
Regular price
$0.00
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1/3/5/10PCS ACS712 5A 20A 30A Hall Effect Current Sensor Module AC DC Current Measurement Board for Arduino
$19.17
Sale price
$19.17
Regular price
$0.00
Description
SPECIFICATIONS
Application: Computer
Brand Name: XYCJJCXL
Choice: yes
Condition: New
Dissipation Power: 5A 20A 30A
High-concerned chemical: none
Origin: Mainland China
Package: SMD
Quantity: 1
Type: Module
semi_Choice: yes
ACS712 Current Sensor Module — 5A / 20A / 30A Hall Effect
1PCS • For Arduino & DIY Electronics • Bi-directional current measurement • Analog output
✨ Product Overview
The ACS712 Current Sensor Module is a Hall-effect based linear current sensor with an analog voltage output centered at VCC/2 when no current flows.
It measures AC or DC current in both directions through the onboard conductor and provides a noise-reduced, filtered output suitable for microcontrollers.
It measures AC or DC current in both directions through the onboard conductor and provides a noise-reduced, filtered output suitable for microcontrollers.
✔ Supply: 5V pin input, onboard power indicator LED
✔ Bi-directional sensing: ±5A / ±20A / ±30A versions
✔ Analog sensitivity: 185 mV/A (5A), 100 mV/A (20A), 66 mV/A (30A)
✔ Zero current output at VCC/2 for simple AC & DC measurement
✔ Hall effect isolation: no shunt heating, low insertion loss
📊 Versions & Key Parameters
Version: 5A
Sensor Chip: ACS712ELC-05B
Measuring Range: ±5 A
Sensitivity: 185 mV/A
Zero-Current Output: VCC / 2
PCB Size (approx.): ≈ 31.5 × 13 mm
Supply: 5 V
Version: 20A
Sensor Chip: ACS712ELC-20A
Measuring Range: ±20 A
Sensitivity: 100 mV/A
Zero-Current Output: VCC / 2
PCB Size (approx.): ≈ 29.5 × 13 mm
Supply: 5 V
Version: 30A
Sensor Chip: ACS712ELC-30A
Measuring Range: ±30 A
Sensitivity: 66 mV/A
Zero-Current Output: VCC / 2
PCB Size (approx.): ≈ 31.5 × 13 mm
Supply: 5 V
Note: Hall detection can be affected by strong external magnetic fields. Keep away from magnets or high-current busbars when possible.
🧩 Pinout & Terminals
Header Pins (3-pin)
VCC: 5V supply input
OUT: Analog output (centered at VCC/2)
GND: Ground
Screw Terminals
IP+: Current input (+) — series with load
IP-: Current output (−) — series with load
🧮 How to Read Current
The sensor output is proportional to current. Use the formula:
I (A) = (VOUT − VCC/2) / Sensitivity
Sensitivity: 0.185 V/A (5A), 0.100 V/A (20A), 0.066 V/A (30A)
Sensitivity: 0.185 V/A (5A), 0.100 V/A (20A), 0.066 V/A (30A)
• Example (5A version): VCC=5V, VOUT=3.425V → I = (3.425−2.5)/0.185 ≈ 5.0A
• For AC measurement, sample VOUT and compute RMS around the VCC/2 offset.
🔌 Quick Wiring Example
• Connect VCC to 5V and GND to GND of your Arduino.
• Connect OUT to an analog input (e.g., A0).
• Place the load line through IP+ → IP- so the module is in series with the circuit.
• Read analog value, convert to voltage, subtract 2.5V, then divide by sensitivity.
🧱 BOM Snapshot (for reference)
C1: 0.1µF Capacitor — 0805 — Qty 1
C2: 1nF Capacitor — 0805 — Qty 1
LED: Power Indicator — LED(0805) — Qty 1
Header: 2-Pin + 3-Pin — 2.54mm — Qty 1 each
R1: 1K Resistor — 0805 — Qty 1
U1: ACS712 (SOIC-8) — SOIC-8 — Qty 1
⚠️ Notes & Safety
• Hall effect sensors are sensitive to external magnetic fields; keep away from magnets and high-current bus bars when possible.
• Do not exceed the rated current of your version (±5A / ±20A / ±30A).
• Observe proper isolation and wiring practices when measuring mains or high-energy loads.
📦 Package Includes
• 1 × ACS712 Current Sensor Module (choose 5A / 20A / 30A)
Free Shipping Over $199
- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
30-Day Return Policy
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
Why Choose Us?
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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