Littelfuse 55140-3H-02-F Magnetic Sensor Equivalent & Substitute Parts

Part Overview

The Littelfuse 55140-3H-02-F is a digital Hall effect magnetic sensor designed for magnetic field detection applications. This component is classified as obsolete and has been superseded in the product line. Due to its obsolete status, sourcing original units may present supply chain challenges. Identifying active equivalent parts ensures design continuity and maintains component availability for production and maintenance requirements.

Substiute Parts

55140-3H-02-F

Littelfuse Inc.In Stock: 79555140-3H-02-F Datasheet

Current PartRFQ

55140-3H-02-A

Littelfuse Inc.In Stock: 263455140-3H-02-A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 55140-3H-02-A is identified as a direct equivalent based on the following substitution criteria:

Manufacturer Continuity: Both parts are manufactured by Littelfuse Inc., ensuring consistent design standards and quality protocols.

Functional Classification: Both components are classified as digital Hall effect magnetic sensors within the magnetic sensors category.

Series Alignment: The substitute part belongs to the 55140 series, establishing product line continuity.

Compliance Standards: The substitute part maintains RoHS3 compliance and MSL Level 1 rating, meeting the same environmental and handling requirements as the original part.

Active Product Status: The substitute part 55140-3H-02-A holds active product status, providing reliable long-term availability and continued manufacturer support.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: The Littelfuse 55140-3H-02-A is the designated equivalent for the obsolete 55140-3H-02-F. This substitution is supported by identical manufacturer origin, matching sensor classification, and series continuity within the Littelfuse product portfolio.

Compliance Advantage: The substitute part carries ROHS3 compliance, representing an advancement over the original RoHS compliance designation. This upgrade ensures alignment with current regulatory requirements and future environmental standards.

Availability Assurance: The active product status of 55140-3H-02-A guarantees ongoing manufacturer support, documented technical resources, and sustained supply chain availability. This contrasts with the obsolete status of the original part, which presents sourcing limitations.

Regulatory Alignment: Both components maintain MSL Level 1 rating, indicating no moisture sensitivity constraints during storage and handling. The substitute part's REACH Unaffected status confirms compliance with chemical substance regulations.

Frequently Asked Questions (FAQ)

Q: Can the 55140-3H-02-A directly replace the 55140-3H-02-F in existing designs?

A: Yes. Both components are digital Hall effect magnetic sensors from Littelfuse Inc. within the 55140 series. The substitute part maintains functional equivalence as a direct replacement.

Q: What is the primary reason for substitution?

A: The 55140-3H-02-F is classified as obsolete, creating supply chain constraints. The 55140-3H-02-A is an active product with guaranteed availability and manufacturer support.

Q: Are there differences in packaging between these parts?

A: The substitute part 55140-3H-02-A is specified with Rectangular, Wire Leads packaging and Bulk packaging format. The original part packaging designation was not provided in available documentation.

Q: Do both parts meet current environmental compliance standards?

A: Yes. Both components are RoHS compliant. The substitute part carries the more current ROHS3 designation and is REACH Unaffected, confirming compliance with contemporary regulatory frameworks.

Q: Is the MSL rating identical between both parts?

A: Yes. Both the 55140-3H-02-F and 55140-3H-02-A carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity limitations for storage and handling procedures.

Q: What electrical specifications should be verified for the substitute part?

A: The 55140-3H-02-A operates within a 2.7V to 24V supply voltage range, functions at 10 kHz frequency, and maintains operational capability across -40°C to 100°C temperature range. These specifications should be confirmed against original design requirements.