CQ3200 Equivalent & Substitute Parts

Part Overview

The CQ3200 is a coreless current sensor manufactured by Asahi Kasei Microdevices (AKM) designed for AC/DC current measurement applications. This Hall Effect, open-loop bidirectional sensor provides ratiometric voltage output with a sensing range of 8.5A and operates across a supply voltage range of 2.7V to 3.63V. The device is packaged in a 24-LSSOP (0.220", 5.60mm Width) surface mount configuration with 10 leads.

The CQ3200 is classified as obsolete. Locating equivalent or substitute components is necessary for new designs, production continuity, and system upgrades where this sensor is no longer available from primary sources.

Substiute Parts

CQ3200

Asahi Kasei Microdevices/AKMIn Stock: 764CQ3200 Datasheet

Current PartRFQ

CZ3A01

Asahi Kasei Microdevices/AKMIn Stock: 1926CZ3A01 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CZ3A01 is identified as a manufacturer-recommended substitute for the CQ3200. Substitution eligibility is determined by the following critical parameters:

• Sensor Technology: Both devices employ Hall Effect, open-loop technology for current measurement
• Measurement Type: Both support AC/DC current measurement with bidirectional polarization
• Output Configuration: Both provide voltage output suitable for ratiometric signal processing
• Compliance & Certification: Both are ROHS3 compliant and carry identical ECCN and HTSUS classifications
• Manufacturer: Both are produced by Asahi Kasei Microdevices (AKM), ensuring design continuity and technical support alignment

The CZ3A01 operates within a narrower supply voltage range (3V ~ 3.6V) and features a higher current sensing capability (12.9A) compared to the CQ3200 (8.5A). The substitute employs a different package format (16-PowerSOIC versus 24-LSSOP) and exhibits different sensitivity (120mV/A versus 155mV/A) and response time characteristics (1µs versus 500ns).

Parameter Comparison

Engineering Selection Recommendations

The CZ3A01 is the manufacturer-recommended substitute for the obsolete CQ3200. Both devices maintain ROHS3 compliance and identical ECCN/HTSUS classifications, ensuring regulatory continuity.

Selection of the CZ3A01 requires evaluation of the following design considerations:

Package Compatibility: The CZ3A01 uses a 16-PowerSOIC package (0.303", 7.70mm Width) versus the CQ3200's 24-LSSOP package (0.220", 5.60mm Width). PCB layout modifications are necessary to accommodate the different footprint and lead configuration.

Electrical Parameter Differences: The CZ3A01 operates within a narrower supply voltage window (3V ~ 3.6V) compared to the CQ3200 (2.7V ~ 3.63V). Applications requiring operation below 3V or above 3.6V require alternative solutions. The CZ3A01 provides higher current sensing capability (12.9A versus 8.5A) and lower sensitivity (120mV/A versus 155mV/A), which may require signal conditioning circuit adjustments.

Performance Trade-offs: The CZ3A01 exhibits slower response time (1µs versus 500ns) and higher supply current consumption (16mA typical versus 9.6mA maximum). The CQ3200 supports a wider operating temperature range (-40°C to 90°C versus -40°C to 85°C).

Moisture Handling: The CZ3A01 carries MSL rating 2A (4 weeks) versus the CQ3200's MSL rating 1 (unlimited), requiring stricter moisture control during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can the CZ3A01 directly replace the CQ3200 without PCB modifications?

A: No. The CZ3A01 uses a different package format (16-PowerSOIC versus 24-LSSOP) with different lead spacing and footprint dimensions. PCB layout redesign is required.

Q: What are the key electrical differences between these sensors?

A: The CZ3A01 has a higher current sensing range (12.9A versus 8.5A), lower sensitivity (120mV/A versus 155mV/A), narrower supply voltage range (3V ~ 3.6V versus 2.7V ~ 3.63V), and slower response time (1µs versus 500ns). Accuracy is also different (±2.1% versus ±1.3%).

Q: Is the CZ3A01 suitable for applications requiring sub-3V operation?

A: No. The CZ3A01 minimum supply voltage is 3V. Applications requiring operation below 3V must use alternative components.

Q: What is the impact of the different MSL ratings?

A: The CQ3200 has MSL rating 1 (unlimited shelf life), while the CZ3A01 has MSL rating 2A (4-week shelf life). The CZ3A01 requires stricter moisture control during storage and handling to prevent moisture absorption that could affect reliability.

Q: Are both devices RoHS compliant?

A: Yes. Both the CQ3200 and CZ3A01 are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Q: Which device has faster response time?

A: The CQ3200 has a response time of 500ns, while the CZ3A01 has a response time of 1µs. The CQ3200 is faster by a factor of two.

Q: Can the CZ3A01 be used in high-temperature applications above 85°C?

A: No. The CZ3A01 maximum operating temperature is 85°C. The CQ3200 supports operation up to 90°C. Applications requiring operation above 85°C require alternative components.