LTS 6-NP/SP14 Current Transducer Equivalent & Substitute Parts

Part Overview

The LTS 6-NP/SP14 is a 6A current transducer manufactured by LEM USA Inc., designed for AC/DC current measurement applications. This Hall Effect, closed-loop bidirectional sensor operates across a frequency range of DC to 200kHz with ratiometric voltage output. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs requiring similar performance characteristics.

Substiute Parts

LTS 6-NP/SP14

LEM USA Inc.In Stock: 1215LTS 6-NP/SP14 Datasheet

Current PartRFQ

T60404N4647X663

VACUUMSCHMELZEIn Stock: 2957T60404N4647X663 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LTS 6-NP/SP14 is based on the following critical parameters that must align between the main part and substitute candidates:

Primary Matching Criteria:

• Current sensing capacity: 6A
• Number of channels: 1
• Sensor technology: Closed loop
• Output configuration: Ratiometric voltage
• Frequency range: DC ~ 200kHz minimum
• Supply voltage: 4.75V ~ 5.25V
• Operating temperature range: -40°C ~ 85°C
• Mounting type: Through hole

Secondary Compatibility Factors:

• Linearity tolerance: ±0.1% or better
• Accuracy specification: ±0.7% or better
• Response time: 400ns or faster
• RoHS compliance status

The T60404N4647X663 from VACUUMSCHMELZE meets the primary matching criteria with equivalent current sensing, channel configuration, closed-loop operation, ratiometric voltage output, frequency range, supply voltage, operating temperature, and through-hole mounting. Differences in polarization (unidirectional vs. bidirectional) and accuracy tolerance (±0.7% vs. ±0.2%) represent functional trade-offs that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The T60404N4647X663 serves as a functional equivalent for the obsolete LTS 6-NP/SP14 based on alignment of core electrical parameters: 6A current sensing, single-channel configuration, closed-loop operation, ratiometric voltage output, DC to 200kHz frequency response, 4.75V to 5.25V supply voltage, and -40°C to 85°C operating temperature range.

Critical Differences Requiring Evaluation:

1. Polarization: The LTS 6-NP/SP14 operates bidirectionally, while the T60404N4647X663 is unidirectional. Applications requiring bidirectional current measurement must confirm that unidirectional operation is acceptable or identify alternative substitutes.

2. Accuracy: The substitute part specifies ±0.7% accuracy compared to the original ±0.2%. Systems with tight accuracy requirements must assess whether this tolerance increase is permissible.

3. Package Configuration: The original uses a single pass-through module format, while the substitute employs a 10-DIP module package. PCB layout and mechanical integration must be re-evaluated.

4. Current Consumption: The substitute draws 15mA maximum versus 28mA typical for the original, representing a power efficiency improvement.

5. Compliance Status: Both parts meet RoHS requirements. The substitute carries ROHS3 compliance and EAR99 export classification, confirming regulatory alignment with current standards.

Selection Criteria:

• Select T60404N4647X663 when unidirectional current measurement is acceptable and ±0.7% accuracy meets application specifications.
• Retain search for alternative substitutes if bidirectional measurement capability is mandatory.
• Verify PCB layout compatibility with 10-DIP module footprint before design implementation.

Frequently Asked Questions (FAQ)

Q: Can the T60404N4647X663 directly replace the LTS 6-NP/SP14 in existing designs?

A: Direct replacement requires verification of three factors: (1) application tolerance for unidirectional versus bidirectional measurement, (2) acceptance of ±0.7% accuracy versus the original ±0.2%, and (3) PCB compatibility with the 10-DIP module package versus the original single pass-through module format.

Q: What is the significance of the polarization difference between these parts?

A: The LTS 6-NP/SP14 measures current flow in both directions (bidirectional), while the T60404N4647X663 measures current in one direction only (unidirectional). Applications requiring AC current measurement or bidirectional DC current sensing must confirm that unidirectional operation is compatible with system requirements.

Q: How does the accuracy difference affect system performance?

A: The LTS 6-NP/SP14 provides ±0.2% accuracy, while the T60404N4647X663 provides ±0.7% accuracy. The substitute introduces a 0.5% additional uncertainty. Applications with measurement specifications tighter than ±0.7% must evaluate whether this tolerance increase is acceptable or if alternative parts are required.

Q: Are both parts RoHS compliant?

A: Yes. The LTS 6-NP/SP14 is RoHS Compliant, and the T60404N4647X663 is ROHS3 Compliant. Both meet current environmental and hazardous substance restrictions.

Q: What are the package differences, and do they affect integration?

A: The LTS 6-NP/SP14 uses a single pass-through module package, while the T60404N4647X663 uses a 10-DIP module package. These represent different physical form factors and pin configurations. PCB layout, connector compatibility, and mechanical mounting must be re-evaluated for the substitute part.

Q: Does the substitute part offer any performance advantages?

A: The T60404N4647X663 provides faster response time (300ns versus 400ns) and lower current consumption (15mA versus 28mA typical). These represent improvements in speed and power efficiency, though accuracy is reduced.

Q: Is the T60404N4647X663 currently available?

A: Yes. The T60404N4647X663 is classified as Active product status with 2938 pieces in stock, ensuring availability for new designs and production requirements.

Q: What frequency range do both parts support?

A: Both the LTS 6-NP/SP14 and T60404N4647X663 support DC to 200kHz frequency response, making them suitable for AC and DC current measurement applications within this bandwidth.