Coreless Surface Mount Current Sensor AKM CZ3A07 with High Accuracy and UL Safety Standard Compliance
Product Overview
The CZ-3A07 is an open-type current sensor utilizing advanced Hall sensor technology for high-accuracy and high-speed AC/DC current measurement. Its coreless, ultra-small surface mount package offers space-saving benefits, while a low primary conductor resistance enables a 50Arms continuous current rating with suppressed heat generation. Designed with a built-in stray magnetic field reduction function and dual overcurrent detection, the CZ-3A0x series ensures reliable performance even in disturbed magnetic environments. It is UL 61800-5-1 safety compliant and ideal for industrial applications such as AC drives, servo motors, UPS, and power conditioners, as well as for interfacing with 3.3V AD converters. The CZ-3A0x series offers a range of linear measurement capabilities, allowing for consistent board designs across different current ratings.
Product Attributes
- Brand: Asahi Kasei Microdevices (AKM)
- Safety Standard Compliance: UL 61800-5-1, UL-1577, IEC/UL 60950-1
- Package Type: Coreless ultra-small surface mount package
- Hall Sensor Material: Group III-V semiconductor thin film
- Primary Conductor Resistance: 0.27m Typ.
- Output Type: 3.3V Output, Non-ratiometric
- Isolation Voltage: 4.2kVrms (AC50Hz, 60s)
- Lead Material: Sn-Bi plating
- Flammability Standard: V0 (According to UL94)
- Comparative Tracking Index (CTI): 600V
- Material Group:
Technical Specifications
| Parameter | Symbol | Conditions | Min. | Typ. | Max. | Units | Notes |
|---|---|---|---|---|---|---|---|
| Model | CZ-3A07 | ||||||
| Maximum Primary Current (Continuous) | IRMSmax | 50 | Arms | Continuous DC value or RMS value | |||
| High-accuracy | Ta=3585C | 0.4 | %F.S. | ||||
| Primary Conductor Resistance | RP | 0.27 | m | ||||
| Package Dimensions | 12.7mm10.9mm2.25mm | ||||||
| Supply Voltage | VDD | 3.0 | 3.3 | 3.6 | V | ||
| Sensitivity | Vh | IIN=30A | 12 | mV/A | Note 1) | ||
| Zero-Current Output Voltage | Vof | IIN0A | 1.64 | 1.65 | 1.66 | V | Note 1) |
| Linear Sensing Range | INS | -129.1 | 129.1 | A | Note 2) | ||
| Linearity Error | IIN=30A, IOUT=2mA | -0.6 | 0.6 | %F.S. | Note 1) | ||
| Rise Response Time | tr | CLVOUT=1000pF | 1 | s | Note 3) | ||
| Fall Response Time | tf | CLVOUT=1000pF | 1 | s | Note 3) | ||
| Stray Magnetic Field Reduction | Ebc | -10mT | 0.01 | A/mT | Equivalent to Zero-Current output drift | ||
| dV/dt Settling Time | tdVdt | 200V/s | 2 | s | Note 5) | ||
| Overcurrent Detection Threshold 1 Adjustable Range | |IOCDTH1| | 58.4 | 145.8 | A | Note 7) | ||
| Overcurrent Detection Response Time 1 | tRSOCD1 | ROCD =1k, CLOCD = 1000pF | 4.5 | 5.5 | s | Note 3) | |
| Overcurrent Detection Threshold 2 Adjustable Range | |IOCDTH2| | 145.9 | 291.6 | A | Note 7) | ||
| Overcurrent Detection Response Time 2 | tRSOCD2 | ROCD =1k, CLOCD = 1000pF | 1.5 | 2.5 | s | Note 3) | |
| Temperature Drift of Sensitivity | Vh-d | Ta=3585C | 0.4 | 0.6 | % | Note 4), 8), 9) | |
| Total Accuracy | Etotal | Ta=3585C | 0.2 | 0.4 | %F.S. | Note 4), 8) | |
| Isolation Voltage | VINS | AC50Hz, 60s | 4.2 | kVrms | Note 6) | ||
| Creepage distance | Cr | 8.0 | mm | ||||
| Clearance distance | Cl | 8.0 | mm |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.