HTFS 400-P Hall Effect Current Sensor - Equivalent & Substitute Parts

Part Overview

The HTFS 400-P is an active Hall Effect current sensor manufactured by LEM USA Inc., designed for bidirectional AC/DC current measurement applications. This open-loop module provides ratiometric voltage output with a 400A sensing range and operates across industrial temperature ranges. The product is currently active in production with full RoHS compliance and REACH unaffected status.

Substitute parts are identified when application requirements permit operation at reduced current-sensing specifications while maintaining identical electrical characteristics, mechanical compatibility, and environmental performance parameters.

Substiute Parts

HTFS 400-P

LEM USA Inc.In Stock: 940HTFS 400-P Datasheet

Current PartRFQ

HTFS 200-P

LEM USA Inc.In Stock: 901HTFS 200-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HTFS 400-P permits substitution with the HTFS 200-P based on the following substitution criteria:

Identical Parameters (Substitution Enablers):

• Sensor Type: Hall Effect, Open Loop
• Number of Channels: 1
• Output Type: Ratiometric, Voltage
• Frequency Range: DC ~ 240kHz
• Linearity: ±0.5%
• Accuracy: ±1%
• Voltage - Supply: 5V
• Response Time: 3.5µs
• Current - Supply (Max): 25mA
• Operating Temperature: -40°C ~ 105°C
• Polarization: Bidirectional
• Mounting Type: Through Hole
• Package / Case: Module
• Packaging: Tube
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 9030.33.3800
• Manufacturer: LEM USA Inc.
• Series: HTFS
• Product Status: Active

Differing Parameter (Substitution Limitation):

• Current - Sensing: 400A (HTFS 400-P) vs. 200A (HTFS 200-P)

Substitution is valid only when the application current requirement does not exceed 200A. The HTFS 200-P cannot be used as a substitute in applications requiring measurement or sensing of currents above 200A.

Parameter Comparison

Engineering Selection Recommendations

HTFS 400-P Selection Criteria:

• Applications requiring current sensing up to 400A
• Bidirectional AC/DC measurement across full frequency range (DC ~ 240kHz)
• Industrial environments with operating temperatures from -40°C to 105°C
• Systems requiring 5V supply with ratiometric voltage output
• Through-hole mounting in module form factor
• RoHS-compliant and REACH-unaffected applications

HTFS 200-P Selection Criteria:

• Applications requiring current sensing up to 200A maximum
• Identical electrical performance, frequency response, and accuracy specifications
• Identical mechanical compatibility and environmental ratings
• Identical compliance certifications (RoHS, REACH, ECCN, HTSUS)
• Both products are active in production with equivalent supply chain availability

Substitution Constraint: The HTFS 200-P is a valid substitute for the HTFS 400-P only when the maximum current to be measured does not exceed 200A. Applications requiring measurement of currents between 200A and 400A must use the HTFS 400-P.

Frequently Asked Questions (FAQ)

Q: Can the HTFS 200-P replace the HTFS 400-P in all applications?

A: No. The HTFS 200-P can replace the HTFS 400-P only in applications where the maximum current to be measured does not exceed 200A. The current-sensing specification is the only parameter that differs between these two parts. If your application requires measurement of currents above 200A, the HTFS 400-P must be used.

Q: Are the electrical output characteristics identical between HTFS 400-P and HTFS 200-P?

A: Yes. Both sensors provide identical ratiometric voltage output, frequency response (DC ~ 240kHz), linearity (±0.5%), accuracy (±1%), response time (3.5µs), and supply requirements (5V, 25mA maximum). The output scaling differs only in relation to the maximum current range.

Q: Are the mechanical and environmental specifications identical?

A: Yes. Both parts feature identical through-hole mounting, module package type, tube packaging, operating temperature range (-40°C ~ 105°C), and polarization (bidirectional). They are mechanically and environmentally interchangeable when current requirements permit.

Q: Do both parts have the same compliance certifications?

A: Yes. Both HTFS 400-P and HTFS 200-P are RoHS Compliant, REACH Unaffected, classified as EAR99, and share the same HTSUS code (9030.33.3800). Both are active products manufactured by LEM USA Inc. in the HTFS series.

Q: What is the inventory status for these parts?

A: HTFS 400-P has 912 pieces in stock. HTFS 200-P has 835 pieces in stock. Both are available as new original components in tube packaging.

Q: Can the HTFS 400-P be used in place of the HTFS 200-P?

A: Yes. The HTFS 400-P can be used in any application designed for the HTFS 200-P. The 400A sensor provides additional current-sensing capability and is fully backward compatible with applications requiring up to 200A measurement.