CZ3AG4 Current Sensor IC 50A for UPS and Inverters
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CZ3AG4 Current Sensor IC 50A for UPS and Inverters
CZ3AG4 Coreless Hall-Effect Current Sensor IC
The CZ3AG4 is an ultra-compact, high-precision current sensor IC designed for industrial and commercial power electronics. Leveraging advanced Hall-effect technology and a coreless surface-mount package, it provides highly accurate, high-speed current measurement in a slim form factor. Engineered for reliability and versatility, the CZ3AG4 is an outstanding solution for demanding applications such as AC drives, DC motors, UPS systems, inverters, and power conditioning equipment.
Performance and Reliability
Delivering a full-scale output of 3 V (with dual overcurrent detection), the CZ3AG4 supports seamless integration with 3 V analog-to-digital converters, making it ideal for modern control systems. With a continuous current measurement capacity of up to 50 A RMS and a low primary conductor resistance of just 0.27 mΩ, it suppresses heat generation and boosts system efficiency. Its built-in stray magnetic field reduction enhances accuracy, and dual adjustable overcurrent detection thresholds offer enhanced protection and flexibility. The sensor complies with UL61800-5-1, UL-1577, and IEC/UL62368-1 safety standards, and its generous 8 mm creepage and clearance distances ensure reinforced insulation for high-voltage environments.
Applications in Industrial and Commercial Electronics
Tailored for high-performance environments, the CZ3AG4 excels across a spectrum of power electronics applications. Its UL safety certifications and compact, coreless construction make it ideal for integration into AC and DC motor drives, renewable energy inverters, UPS systems, and power conditioners that demand reliable, compact, and thermally efficient current sensing.
Benefits
With the CZ3AG4, you get more than just a sensor—you get a reliable workhorse. Its surface-mount coreless design enables space-saving and light-weight board implementations. The low-resistance primary conductor and efficient architecture reduce thermal stress and enhance system longevity. Dual overcurrent detection with adjustable thresholds equips designers for flexible protection strategies. High accuracy, rapid response, and reinforced insulation make this sensor a durable choice for mission-critical power systems.
Key Specs
| Specification | Details |
|---|---|
| Model | CZ3AG4 |
| Sensor Type | Hall-Effect, Coreless (Open-Loop) |
| Output Voltage | 3 V (compatible with 3 V ADCs) |
| Maximum Continuous Current | 50 A RMS |
| Primary Conductor Resistance | 0.27 mΩ (typical) |
| Accuracy | ~0.3% F.S. (typical at 35–85 °C) |
| Response Time | ~3.6 microseconds |
| Overcurrent Detection | Dual, adjustable thresholds |
| Stray Field Suppression | Built-in for improved accuracy |
| Safety Certifications | UL61800-5-1, UL-1577, IEC/UL62368-1 |
| Isolation Voltage | 3.0 kVrms (AC, 50 Hz, 60 s) |
| Creepage / Clearance | ≥ 8 mm |
| Package Size | ~12.7 × 10.9 × 2.25 mm, surface-mount (SMD) |
| Applications | AC/DC drives, UPS, inverters, power conditioners |
