Littelfuse 55100-2M-02-D Hall Effect Current Sensor Equivalent & Substitute Parts

Part Overview

The Littelfuse 55100-2M-02-D is a Hall Effect current sensor with wire leads and connector termination, designed for magnetic sensing applications requiring current output. This component operates across a 3V to 24V supply range with a frequency response of 10 kHz and temperature stability from -40°C to 100°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

55100-2M-02-D

Littelfuse Inc.In Stock: 110055100-2M-02-D Datasheet

Current PartRFQ

55100-2M-02-A

Littelfuse Inc.In Stock: 491155100-2M-02-A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 55100-2M-02-D has one manufacturer-recommended substitute: the 55100-2M-02-A. Substitution eligibility is determined by matching the following critical parameters:

• Hall Effect Switch type with current output
• South Pole magnet actuator material
• 3V to 24V supply voltage compatibility
• 10 kHz frequency response
• 14.60mm must-operate distance
• -40°C to 100°C operating temperature range
• Module package classification
• ROHS3 compliance

The primary distinction between these parts is termination style and product status. The 55100-2M-02-D features wire leads with connector termination and is obsolete. The 55100-2M-02-A provides wire leads only termination and maintains active product status.

Parameter Comparison

Engineering Selection Recommendations

The 55100-2M-02-A is the manufacturer-recommended substitute for the obsolete 55100-2M-02-D. Both components share identical electrical and mechanical specifications across all critical parameters: Hall Effect switching functionality, current output, South Pole magnet actuation, supply voltage range, frequency response, operating temperature range, and must-operate distance.

The primary design consideration is termination style. The 55100-2M-02-D includes connector termination alongside wire leads, while the 55100-2M-02-A provides wire leads only. System integration requirements must account for this termination difference during component selection.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, supporting deployment in regulated and standard industrial environments. The 55100-2M-02-A's active product status ensures ongoing availability and manufacturer support, making it the preferred choice for new designs and legacy system replacements.

Frequently Asked Questions (FAQ)

Q: Can the 55100-2M-02-A directly replace the 55100-2M-02-D in existing applications?

A: Electrical and magnetic specifications are identical. Compatibility depends on termination requirements. If the original design uses the connector termination feature of the 55100-2M-02-D, additional interface adaptation may be necessary for the wire leads-only configuration of the 55100-2M-02-A.

Q: What is the significance of the termination style difference?

A: The 55100-2M-02-D provides both wire leads and connector termination options. The 55100-2M-02-A provides wire leads only. This affects PCB integration, wiring harness design, and mechanical mounting approaches.

Q: Are there any compliance or certification differences between these parts?

A: Both components are ROHS3 compliant with identical moisture sensitivity levels. No compliance or certification differences exist between the two parts.

Q: Why is the 55100-2M-02-D classified as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The 55100-2M-02-A remains in active production and is the recommended replacement path.

Q: What parameters must match for substitution eligibility?

A: Hall Effect Switch type, current output, South Pole magnet actuation, 3V to 24V supply voltage, 10 kHz frequency, 14.60mm must-operate distance, -40°C to 100°C operating temperature, and Module package type must all remain constant for valid substitution.