CS0505B Current Sensor Equivalent & Substitute Parts

Part Overview

The CS0505B is an open-loop current sensor manufactured by CUI Devices, designed for AC current measurement applications. This module provides bidirectional sensing capability with a 5A current range and ratiometric voltage output. The part is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, allowing for component interchangeability in circuit designs where current sensing specifications permit alternative configurations.

Substiute Parts

CS0505B

CUI DevicesIn Stock: 743CS0505B Datasheet

Current PartRFQ

CS0305B

CUI DevicesIn Stock: 1151CS0305B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS0505B is determined by alignment across the following critical parameters:

Mandatory Matching Parameters:

• Sensor Type: Open Loop
• Number of Channels: 1
• Output Type: Ratiometric, Voltage
• Frequency Range: DC ~ 40kHz
• Linearity: ±0.5%
• Accuracy: ±2.2%
• Voltage - Supply: 4.75V ~ 5.25V
• Response Time: 7µs
• Current - Supply (Max): 25mA
• Operating Temperature: -10°C ~ 75°C
• Polarization: Bidirectional
• Mounting Type: Through Hole
• Package / Case: Module
• Series: CSXX05B
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Variable Parameter:

• Current - Sensing: Substitutes within the CSXX05B series may differ in current range capacity while maintaining all other electrical and mechanical specifications.

The CS0305B qualifies as a parametric equivalent because it maintains identical specifications across all mandatory parameters while operating at a reduced current sensing range of 3A instead of 5A.

Parameter Comparison

Engineering Selection Recommendations

Both the CS0505B and CS0305B maintain Active product status with identical compliance certifications. Selection between these parts is determined by application current requirements. The CS0505B accommodates measurement of currents up to 5A, while the CS0305B is rated for currents up to 3A. Both parts carry ROHS3 compliance and REACH unaffected designation, confirming regulatory alignment for industrial and commercial applications. The identical electrical performance characteristics—including linearity, accuracy, frequency response, and supply voltage specifications—ensure functional equivalence within their respective current measurement ranges. Through-hole mounting and module packaging are consistent across both variants, supporting direct board-level substitution where current sensing specifications permit the lower 3A range of the CS0305B.

Frequently Asked Questions (FAQ)

Q: Can the CS0305B substitute for the CS0505B in all applications?

A: The CS0305B functions as a parametric equivalent only in applications where the measured current does not exceed 3A. All electrical performance parameters, output characteristics, and operating specifications are identical. Applications requiring current measurement above 3A must use the CS0505B.

Q: Are the mounting footprints identical between CS0505B and CS0305B?

A: Both parts feature through-hole mounting type and module package configuration. Mechanical compatibility is maintained across the CSXX05B series.

Q: Do both parts require identical supply voltage?

A: Yes. Both the CS0505B and CS0305B operate within the 4.75V to 5.25V supply voltage range with identical response characteristics.

Q: What is the primary difference between these two current sensor modules?

A: The sole difference is the current sensing range. The CS0505B measures up to 5A, while the CS0305B measures up to 3A. All other specifications—sensor type, output format, frequency response, accuracy, linearity, and environmental ratings—are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the CS0505B and CS0305B carry ROHS3 compliance and REACH unaffected designation.

Q: What is the response time for both sensors?

A: Both the CS0505B and CS0305B provide a 7µs response time, supporting identical signal acquisition speeds in AC current measurement applications.