CQ2366 Equivalent & Substitute Parts

Part Overview

The CQ2366 is a current sensor channel module manufactured by Asahi Kasei Microdevices (AKM) designed for AC/DC current measurement applications with a 50A sensing capacity. This component features through-hole mounting and is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

The obsolete status of the CQ2366 necessitates the identification of active substitute components that maintain functional compatibility while meeting current manufacturing and supply chain requirements.

Substiute Parts

CQ2366

Asahi Kasei Microdevices/AKMIn Stock: 984CQ2366 Datasheet

Current PartRFQ

CZ3706

Asahi Kasei Microdevices/AKMIn Stock: 3312CZ3706 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CZ3706 qualifies as a manufacturer-recommended substitute based on the following substitution criteria:

Common Functional Parameters:

• Manufacturer: Asahi Kasei Microdevices (AKM) — same manufacturer ensures design continuity and application compatibility
• Sensor Technology: Hall Effect, Open Loop — maintains the same sensing principle for AC/DC current measurement
• AC/DC Measurement Capability: Both components support bidirectional current sensing for AC/DC applications
• RoHS3 Compliance: Both components meet the same environmental and regulatory standards
• ECCN Classification: Both classified as EAR99, ensuring consistent export control treatment

Substitution Basis: The CZ3706 represents an active product within the AKM current sensor portfolio with enhanced specifications (180A sensing capacity versus 50A) and improved availability. While the CZ3706 employs surface-mount packaging rather than through-hole mounting, it provides superior electrical performance and current production status, making it suitable for applications requiring component replacement or redesign.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement in Existing Designs: The CZ3706 is the manufacturer-recommended substitute for the obsolete CQ2366. Both components are manufactured by Asahi Kasei Microdevices and employ Hall Effect sensing technology for AC/DC current measurement. The CZ3706 maintains ROHS3 compliance and EAR99 classification, ensuring regulatory consistency.

Design Considerations:

• The CZ3706 features surface-mount packaging, requiring PCB layout modifications from the through-hole configuration of the CQ2366
• The CZ3706 provides 180A sensing capacity, exceeding the 50A specification of the CQ2366, offering design margin for current measurement applications
• The CZ3706 specifies ratiometric voltage output with defined sensitivity (12mV/A), linearity (±0.13%), and accuracy (±1%), providing quantified performance parameters for circuit design

Compliance Status: Both components maintain ROHS3 compliance and EAR99 export classification, ensuring no regulatory barriers to substitution.

Frequently Asked Questions (FAQ)

Q: Can the CZ3706 directly replace the CQ2366 in existing PCB assemblies? A: Direct PCB replacement is not possible due to packaging differences. The CQ2366 uses through-hole mounting while the CZ3706 uses surface-mount technology (16-PowerSOIC package). PCB redesign is required for the CZ3706 implementation.

Q: What are the key electrical differences between these components? A: The primary electrical difference is current sensing capacity: the CQ2366 measures up to 50A, while the CZ3706 measures up to 180A. Both employ Hall Effect sensing for AC/DC measurement. The CZ3706 provides specified output characteristics (12mV/A sensitivity, ±1% accuracy, ±0.13% linearity) not detailed in the CQ2366 specification.

Q: Are there any regulatory or compliance concerns with substitution? A: No. Both components are ROHS3 compliant and classified as EAR99 for export control purposes, ensuring regulatory consistency across substitution.

Q: What is the moisture sensitivity impact of substitution? A: The CQ2366 specifies MSL 1 (unlimited moisture exposure), while the CZ3706 specifies MSL 2A (4-week moisture exposure limit). Storage and handling procedures must account for the CZ3706's moisture sensitivity requirements.

Q: Is the CZ3706 currently available? A: Yes. The CZ3706 is classified as an active product with documented inventory availability, unlike the obsolete CQ2366.