High accuracy surface mount current sensor AKM CZ3A04 with low heat generation and continuous rating

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Product Description

Product Overview

The CZ-3A04 is an open-type current sensor utilizing Hall effect technology to provide an analog voltage output proportional to AC/DC current. Engineered with a Group III-V semiconductor thin film Hall sensor, it delivers high accuracy and high-speed current sensing. Its coreless, ultra-small surface mount package ensures space-saving integration, while the low primary conductor resistance minimizes heat generation, enabling a continuous current rating of 50Arms. The CZ-3A04 series incorporates a built-in stray magnetic field reduction function to mitigate accuracy degradation from disturbed magnetic fields, alongside a dual overcurrent detection feature. Compliant with UL 61800-5-1 safety standards, it is ideal for industrial AC drives, servo motors, and for interfacing with 3.3V AD converters. The CZ-3A0x series offers a range of linear measurement capabilities, from 12.9A to 129.1A, facilitating consistent board designs across different current ratings.

Product Attributes

  • Brand: Asahi Kasei Microdevices Corporation (AKM)
  • Safety Standard Compliance: UL 61800-5-1, UL 1577, IEC/UL 60950-1
  • Material: Group III-V semiconductor thin film (Hall sensor)
  • Package Type: Coreless, ultra-small surface mount
  • Lead Finish: Sn-Bi
  • Flammability Standard: V0 (According to UL94)
  • Comparative Tracking Index (CTI): 600V
  • Material Group: I

Technical Specifications

Parameter Symbol Conditions Min. Typ. Max. Units Notes
Model CZ-3A04
Supply Voltage VDD 3.0 3.3 3.6 V VDD pin
Maximum Primary Current (RMS) IRMSmax Continuous 50 Arms
High-accuracy Ta=35~85C 0.4 %F.S. Typ.
Primary Conductor Resistance RP 0.27 m Typ.
Small-sized surface mount package 12.7 10.92.25 mm (LWH)
Isolation Voltage VINS AC50Hz, 60s 4.2 kVrms
Sensitivity Vh IIN=25A 48 mV/A Typ.
Zero-Current Output Voltage Vof IIN0A 1.64 1.65 1.66 V Typ.
Linear Sensing Range INS -32.2 32.2 A
Linearity Error IIN=25A, IOUT=2mA -0.6 0.6 %F.S. Typ.
Rise Response Time tr CLVOUT=1000pF 1 s Typ.
Fall Response Time tf CLVOUT=1000pF 1 s Typ.
Overcurrent Detection Threshold 1 Adjustable Range |IOCDTH1| 14.6 36.4 A
Overcurrent Detection Threshold 2 Adjustable Range |IOCDTH2| 36.5 72.9 A
Creepage distance Cr 8.0 mm
Clearance distance Cl 8.0 mm

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Company Changsha Purple Horn E-Commerce Co., Ltd.
Location 2332 Kaibin Commercial Plaza, No. 419 Shaoshan Middle Road, Shazitang Street, Yuhua District, Changsha City, Hunan Province
Contact Person Coral

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