CTSR 0.3-TP/SP4 Equivalent & Substitute Parts

Part Overview

The CTSR 0.3-TP/SP4 is a current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications. This flux gate, closed-loop bidirectional module operates with a 300mA sensing range and provides ratiometric voltage output. The part is currently active in production with 987 pieces in stock. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

CTSR 0.3-TP/SP4

LEM USA Inc.In Stock: 1036CTSR 0.3-TP/SP4 Datasheet

Current PartRFQ

CTSR 0.3-P

LEM USA Inc.In Stock: 1747CTSR 0.3-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CTSR 0.3-TP/SP4 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Sensor Type: Flux Gate, Closed Loop architecture
• Current Sensing Range: 300mA
• Number of Channels: 1 channel configuration
• Output Specification: Ratiometric, Voltage output
• Frequency Response: 3.5kHz
• Linearity: ±0.5%
• Accuracy: ±1.9%
• Supply Voltage: 4.75V ~ 5.25V
• Response Time: 50µs
• Maximum Supply Current: 21.6mA
• Operating Temperature Range: -40°C ~ 105°C
• Polarization: Bidirectional
• Mounting Type: PCB, Through Hole
• Package Type: Module
• Compliance: RoHS Compliant, REACH Unaffected

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The CTSR 0.3-P is a direct parametric equivalent to the CTSR 0.3-TP/SP4. Both parts are manufactured by LEM USA Inc., belong to the same CTSR series, and share identical electrical specifications, mechanical characteristics, and compliance certifications.

Selection Basis:

• Both parts are Active in production status, ensuring long-term availability and support.
• Both parts maintain RoHS Compliance and REACH Unaffected status, meeting environmental and regulatory requirements.
• All electrical parameters are identical: 300mA sensing range, 3.5kHz frequency response, ±0.5% linearity, ±1.9% accuracy, 50µs response time, and 4.75V ~ 5.25V supply voltage.
• Both parts feature identical mechanical specifications: PCB through-hole mounting, module package type, and bidirectional polarization.
• The CTSR 0.3-P currently has higher inventory availability (1683 pieces) compared to the CTSR 0.3-TP/SP4 (987 pieces), providing improved procurement flexibility.

The CTSR 0.3-P can be selected as a direct substitute without design modification or functional impact.

Frequently Asked Questions (FAQ)

Q: Can the CTSR 0.3-P be used as a direct replacement for the CTSR 0.3-TP/SP4?

A: Yes. The CTSR 0.3-P is a parametric equivalent with identical electrical specifications, mechanical characteristics, and compliance certifications. No design changes are required.

Q: Are there any differences in the mounting or package between these parts?

A: No. Both parts use PCB through-hole mounting and are supplied in module package type. They are mechanically interchangeable.

Q: Do both parts meet the same environmental and regulatory standards?

A: Yes. Both the CTSR 0.3-TP/SP4 and CTSR 0.3-P are RoHS Compliant and REACH Unaffected, meeting identical compliance requirements.

Q: What is the difference between the part numbers CTSR 0.3-TP/SP4 and CTSR 0.3-P?

A: The part numbers differ in their suffix designations (TP/SP4 versus P), but the electrical and mechanical specifications are identical. The suffix variation reflects packaging or distribution channel differences, not functional differences.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection can be based on inventory availability, lead time, or supplier preference. The CTSR 0.3-P currently has higher stock availability.

Q: Are the frequency response and response time identical?

A: Yes. Both parts operate at 3.5kHz frequency response with 50µs response time, ensuring identical dynamic performance in AC/DC current measurement applications.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes. The identical mounting type (PCB through-hole), package type (module), and electrical specifications ensure full interchangeability in existing circuit designs without modification.