Littelfuse 59010-1-S-01-F Magnetic Reed Switch Equivalent & Substitute Parts

Part Overview

The Littelfuse 59010-1-S-01-F is a magnetic reed switch sensor with SPST-NO (Single Pole Single Throw - Normally Open) output configuration, designed for magnetic actuation applications. This component features wire leads with connector probe termination and operates across a temperature range of -40°C to 85°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure long-term component availability for new designs and field replacements.

Substiute Parts

59010-1-S-01-F

Littelfuse Inc.In Stock: 106559010-1-S-01-F Datasheet

Current PartRFQ

59010-1-S-02-A

Littelfuse Inc.In Stock: 169859010-1-S-02-A Datasheet

MFR RecommendedRFQ

59010-1-S-02-F

Littelfuse Inc.In Stock: 205359010-1-S-02-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 59010-1-S-01-F is determined by strict equivalence across the following critical parameters:

• Functional Type: Reed Switch with SPST-NO output configuration
• Actuation Method: Magnetic actuation
• Operating Distance: 6.00mm must-operate specification
• Temperature Range: -40°C to 85°C operational envelope
• Compliance: ROHS3 compliance and MSL Level 1 rating
• Series Compatibility: Littelfuse 59010 series

The two identified substitutes (59010-1-S-02-A and 59010-1-S-02-F) maintain functional and electrical equivalence to the main part while differing in termination style and packaging configuration. Both substitutes are active products with confirmed inventory availability, addressing the obsolescence status of the original component.

Parameter Comparison

Engineering Selection Recommendations

59010-1-S-02-F is the primary recommended substitute for the obsolete 59010-1-S-01-F. This part maintains identical termination style (Wire Leads with Connector), ensuring direct mechanical and electrical compatibility in existing circuit designs without requiring connector interface modifications. The 59010-1-S-02-F is an active product with the highest inventory availability (2017 units), ROHS3 compliance, and REACH unaffected status, providing long-term supply assurance.

59010-1-S-02-A serves as an alternative substitute when connector probe termination is not required. This variant features standard wire leads termination and is also an active product with substantial inventory (1601 units). Selection of this part requires verification that the application circuit can accommodate wire lead termination without connector interface requirements.

Both substitutes maintain full electrical and thermal equivalence to the original part across all critical operating parameters.

Frequently Asked Questions (FAQ)

Q: Can 59010-1-S-02-A and 59010-1-S-02-F be used interchangeably with 59010-1-S-01-F?

A: Both parts are functionally equivalent in terms of reed switch operation, SPST-NO output, magnetic actuation, and operating specifications. The primary difference is termination style. The 59010-1-S-02-F maintains connector probe termination identical to the original part. The 59010-1-S-02-A uses standard wire leads without connector. Selection depends on circuit interface requirements.

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

A: Termination style affects mechanical integration. The 59010-1-S-02-F with connector probe provides direct replacement capability for designs using connector interfaces. The 59010-1-S-02-A with wire leads requires direct soldering or wire connection to the circuit. Verify your application's connector or termination requirements before selection.

Q: Are both substitutes compliant with current regulatory standards?

A: Yes. Both 59010-1-S-02-A and 59010-1-S-02-F are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 rating. Both are active products with confirmed current manufacturing status, ensuring compliance with contemporary regulatory requirements.

Q: Why is the original 59010-1-S-01-F classified as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The identified substitutes (59010-1-S-02-A and 59010-1-S-02-F) are active alternatives within the same 59010 series, providing equivalent functionality with ongoing manufacturing support and supply availability.

Q: What are the critical parameters that must match for substitution?

A: Critical matching parameters are: SPST-NO output type, 6.00mm must-operate distance, -40°C to 85°C operating temperature range, magnetic actuation method, probe package configuration, and ROHS3 compliance. All identified substitutes meet these requirements.