CS2005U Current Sensor Equivalent & Substitute Parts

Part Overview

The CS2005U is an active, open-loop current sensor manufactured by CUI Devices, designed for AC current measurement applications. This module provides ratiometric voltage output with a 20A sensing range, operating across a frequency spectrum from DC to 40kHz. The part is ROHS3 compliant and REACH unaffected, confirming its suitability for modern electronic applications.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, allowing direct functional replacement within defined application constraints. The CS2005U belongs to the CSXX05U series, which includes lower current-range variants that maintain identical electrical characteristics except for current-sensing capacity.

Substiute Parts

CS2005U

CUI DevicesIn Stock: 1042CS2005U Datasheet

Current PartRFQ

CS0505U

CUI DevicesIn Stock: 939CS0505U Datasheet

Parametric EquivalentRFQ

CS1005U

CUI DevicesIn Stock: 953CS1005U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CS2005U are identified from the CSXX05U series based on electrical and mechanical parameter equivalence. The substitution logic is determined by the following criteria:

Identical Parameters Across All Variants:

• Sensor Type: Open Loop
• Output Type: Ratiometric, Voltage
• Frequency Range: DC ~ 40kHz
• Linearity: ±0.5%
• Accuracy: ±4.2%
• Voltage - Supply: 4.75V ~ 5.25V
• Response Time: 7µs
• Current - Supply (Max): 25mA
• Operating Temperature: -10°C ~ 75°C
• Polarization: Unidirectional
• Mounting Type: Through Hole
• Package / Case: Module
• Packaging: Tray
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Variable Parameter:

• Current - Sensing: Differs by part number (5A, 10A, 20A)

The CS1005U (10A) and CS0505U (5A) are parametric equivalents of the CS2005U. These parts share identical electrical performance characteristics, compliance certifications, and mechanical specifications. The only distinction is the current-sensing range, which determines the maximum measurable current for each variant.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CS2005U, CS1005U, and CS0505U—maintain active product status with full ROHS3 compliance and REACH unaffected certification. This ensures regulatory compliance for applications requiring environmental and hazardous substance restrictions.

Selection between these variants is determined solely by the maximum current measurement requirement of the application:

• CS2005U: Applications requiring measurement of currents up to 20A
• CS1005U: Applications requiring measurement of currents up to 10A
• CS0505U: Applications requiring measurement of currents up to 5A

All three parts deliver identical electrical performance, signal conditioning characteristics, and thermal operating ranges. The choice of variant depends on the maximum current level present in the target circuit. Using a lower-range sensor (CS0505U or CS1005U) in an application designed for CS2005U will result in signal saturation if current exceeds the sensor's rated range. Conversely, using a higher-range sensor in a lower-current application introduces no functional degradation.

Frequently Asked Questions (FAQ)

Q: Can CS1005U or CS0505U be used as direct replacements for CS2005U?

A: CS1005U and CS0505U are parametric equivalents with identical electrical characteristics, output behavior, and compliance certifications. Direct physical and electrical substitution is possible. However, the maximum measurable current differs: CS1005U measures up to 10A, and CS0505U measures up to 5A, compared to CS2005U's 20A range. Substitution is valid only if the application's maximum current does not exceed the substitute part's sensing limit.

Q: What is the difference between these three current sensor variants?

A: The CS2005U, CS1005U, and CS0505U differ only in their current-sensing range (20A, 10A, and 5A respectively). All other specifications—including output type, frequency response, accuracy, linearity, supply voltage, response time, operating temperature, and mounting configuration—are identical across the series.

Q: Are all three parts available in the same packaging?

A: Yes. All three parts use identical through-hole module packaging in tray format, ensuring mechanical compatibility in PCB designs.

Q: What happens if I use a lower-range sensor in a higher-current application?

A: Using CS0505U or CS1005U in an application where current exceeds the sensor's rated range will cause the output signal to saturate at its maximum voltage level, preventing accurate current measurement above the sensor's threshold.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts carry identical ROHS3 compliance and REACH unaffected status, ensuring equivalent regulatory suitability for all applications.

Q: What is the response time for all variants?

A: All three parts—CS2005U, CS1005U, and CS0505U—have a response time of 7µs, enabling real-time current measurement across the DC to 40kHz frequency range.