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

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

working temperature : -40℃~+85℃

Current Range : 32.2A

Voltage - Supply : 3V~3.6V

Current Terminal Resistance : 0.27mΩ

Response Time (tr) : 1us

Sensitivity : 48mV/A

Bidirectional Current Detection : Support

Description : 32.2A 48mV/A SMD-10P,10.9x7.7mm Current Sensors RoHS

Mfr. Part # : CZ3A04

Model Number : CZ3A04

Package : SMD-10P,10.9x7.7mm

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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

2410121456_AKM-CZ3A04_C1857735.pdf

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