HAT 400-S Current Sensor Equivalent & Substitute Parts

Part Overview

The HAT 400-S is an active Hall Effect current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications requiring bidirectional sensing capability. This open-loop module provides ratiometric voltage output with 400A sensing range and operates across industrial temperature ranges. The product maintains active status with full RoHS compliance and REACH unaffected designation. Substitute parts are identified when application requirements permit operation within alternative current-sensing specifications while maintaining compatibility across electrical, mechanical, and environmental parameters.

Substiute Parts

HAT 400-S

LEM USA Inc.In Stock: 941HAT 400-S Datasheet

Current PartRFQ

HAT 200-S

LEM USA Inc.In Stock: 1152HAT 200-S Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts within the HAT series are determined by compatibility across the following critical parameters:

Preserved Parameters (Must Match for Substitution):

• Sensor Type: Hall Effect, Open Loop
• Number of Channels: 1
• Output Type: Ratiometric, Voltage
• Frequency Range: DC ~ 25kHz
• Linearity: ±1%
• Accuracy: ±1%
• Voltage - Supply: ±15V
• Response Time: 5µs
• Current - Supply (Max): 15mA
• Operating Temperature: -40°C ~ 105°C
• Polarization: Bidirectional
• Mounting Type: Chassis Mount
• Package / Case: Module
• Packaging: Tray
• RoHS Status: RoHS Compliant
• REACH Status: REACH Unaffected

Variable Parameter (Defines Substitution Scope):

• Current - Sensing: 400A (main part) vs. 200A (substitute)

The HAT 200-S qualifies as a parametric equivalent because it maintains identical electrical performance characteristics, environmental ratings, and mechanical specifications. The reduced current-sensing range (200A vs. 400A) represents the only specification variance and determines applicability based on circuit current requirements.

Parameter Comparison

Engineering Selection Recommendations

HAT 400-S Primary Selection Criteria:

• Applications requiring 400A current measurement range
• Bidirectional AC/DC sensing across full frequency spectrum (DC to 25kHz)
• Industrial environments spanning -40°C to 105°C operating range
• Systems requiring ±1% linearity and accuracy specifications
• Designs utilizing ±15V dual-supply architecture

HAT 200-S Substitution Applicability:

• Applications with maximum circuit current not exceeding 200A
• Identical electrical performance and environmental compliance required
• Chassis-mount module form factor compatibility confirmed
• RoHS and REACH compliance requirements maintained
• Both products maintain active manufacturing status with full LEM USA Inc. support

Selection between HAT 400-S and HAT 200-S depends exclusively on circuit current requirements. All other electrical, mechanical, and compliance parameters remain constant across both models.

Frequently Asked Questions (FAQ)

Q: Can HAT 200-S replace HAT 400-S in existing designs?

A: HAT 200-S substitution is applicable only when circuit maximum current does not exceed 200A. All other specifications remain identical. Circuit redesign is not required if current requirements fall within the 200A range.

Q: What is the primary difference between HAT 400-S and HAT 200-S?

A: The sole specification difference is current-sensing range: HAT 400-S measures up to 400A, while HAT 200-S measures up to 200A. Sensor type, output characteristics, frequency response, accuracy, linearity, supply voltage, response time, temperature range, and mounting specifications are identical.

Q: Are both sensors compatible with the same PCB layout and connector interface?

A: Both HAT 400-S and HAT 200-S share identical mounting type (Chassis Mount), package type (Module), and packaging format (Tray). Mechanical compatibility is confirmed. Electrical interface compatibility depends on circuit design specifics not provided in this reference.

Q: Do both sensors require identical power supply specifications?

A: Yes. Both HAT 400-S and HAT 200-S require ±15V supply voltage with maximum supply current of 15mA. Power supply design remains unchanged between models.

Q: What compliance certifications apply to both sensors?

A: Both sensors maintain RoHS Compliant status and REACH Unaffected designation. Regulatory compliance is identical across both models.

Q: Are both sensors suitable for the same temperature operating range?

A: Yes. Both HAT 400-S and HAT 200-S operate across -40°C to 105°C temperature range with identical performance characteristics.

Q: What is the response time specification for both sensors?

A: Both sensors provide 5µs response time, enabling identical dynamic performance in AC/DC measurement applications across the DC to 25kHz frequency range.