HASS 400-S Hall Effect Current Sensor Equivalent & Substitute Parts

Part Overview

The HASS 400-S is a Hall Effect open loop bidirectional current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications up to 400A. This component features ratiometric voltage output, operates across DC to 50kHz frequency range, and is housed in a through-hole module package.

The HASS 400-S carries a "Not For New Designs" product status designation. This status necessitates identification of equivalent substitute parts for ongoing production requirements, maintenance applications, and design continuity where this sensor remains functionally appropriate.

Substiute Parts

HASS 400-S

LEM USA Inc.In Stock: 4268HASS 400-S Datasheet

Current PartRFQ

HASS 200-S

LEM USA Inc.In Stock: 9118HASS 200-S Datasheet

Parametric EquivalentRFQ

HASS 300-S

LEM USA Inc.In Stock: 6792HASS 300-S Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HASS 400-S are identified within the HASS series based on strict parametric equivalence. The substitution logic is determined by the following criteria:

Identical Parameters (Non-Negotiable for Substitution):

• Sensor Type: Hall Effect, Open Loop
• Output Type: Ratiometric, Voltage
• Frequency Range: DC ~ 50kHz
• Linearity: ±0.5%
• Accuracy: ±1%
• Supply Voltage: 5V
• Response Time: 3µs
• Maximum Supply Current: 19mA
• Operating Temperature Range: -40°C ~ 85°C
• Polarization: Bidirectional
• Mounting Type: Through Hole
• Package Type: Module
• Packaging Format: Tray
• RoHS Status: RoHS Compliant
• REACH Status: REACH Unaffected

Variable Parameter (Determines Substitution Applicability):

• Current Sensing Range: 200A, 300A, or 400A

The HASS 400-S can be substituted with HASS 300-S or HASS 200-S when the application current measurement requirement does not exceed the substitute part's rated sensing capacity. Conversely, the HASS 400-S serves as a substitute for applications requiring lower current sensing where 400A capacity is acceptable.

Parameter Comparison

Engineering Selection Recommendations

HASS 400-S Primary Application: The HASS 400-S is designated for applications requiring current measurement up to 400A with Hall Effect open loop sensing technology. All three parts in this series maintain identical electrical performance characteristics, compliance certifications, and mechanical specifications.

Substitution Criteria: Selection between HASS 400-S, HASS 300-S, and HASS 200-S is determined solely by the maximum current measurement requirement of the application:

• HASS 200-S: Applications measuring current up to 200A
• HASS 300-S: Applications measuring current up to 300A
• HASS 400-S: Applications measuring current up to 400A

Compliance Considerations: All three parts maintain identical RoHS Compliant and REACH Unaffected status, ensuring regulatory equivalence for applications subject to these standards.

Product Status Impact: The "Not For New Designs" designation applies uniformly across HASS 200-S, HASS 300-S, and HASS 400-S. This status does not affect substitution eligibility between parts within this series for existing production or maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can HASS 200-S replace HASS 400-S in an existing application?

A: HASS 200-S can replace HASS 400-S only if the application's maximum current measurement requirement does not exceed 200A. The HASS 200-S is rated for 200A sensing capacity. If the application requires measurement of currents above 200A, HASS 200-S is not suitable.

Q: Can HASS 400-S replace HASS 300-S or HASS 200-S?

A: Yes. HASS 400-S can replace HASS 300-S or HASS 200-S in applications where the current measurement requirement is within the lower part's rated capacity. The 400A rated sensor functions in applications requiring 300A or 200A measurement. All other electrical and mechanical parameters are identical.

Q: Are there differences in output signal characteristics between these parts?

A: No. All three parts (HASS 200-S, HASS 300-S, HASS 400-S) provide identical ratiometric voltage output, linearity (±0.5%), accuracy (±1%), response time (3µs), and frequency response (DC ~ 50kHz).

Q: Do these parts require different mounting or PCB layout considerations?

A: No. All three parts share identical through-hole mounting type and module package specifications. PCB layout and mounting procedures are interchangeable.

Q: What is the significance of the "Not For New Designs" status?

A: This designation indicates that LEM USA Inc. does not recommend these parts for new product development. However, this status does not affect the technical equivalence or substitution eligibility between HASS 200-S, HASS 300-S, and HASS 400-S for existing applications or production continuity.

Q: Are supply voltage and power consumption identical across all three parts?

A: Yes. All three parts operate at 5V supply voltage with maximum supply current of 19mA. Power consumption characteristics are identical.

Q: What is the operating temperature range for all substitute parts?

A: All three parts operate across -40°C to 85°C. Operating temperature range is identical and does not vary by current sensing rating.