Littelfuse 59010-1-T-02-B Magnetic Reed Switch Equivalent & Substitute Parts

Part Overview

The Littelfuse 59010-1-T-02-B 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 lead termination and operates across an industrial temperature range of -40°C to 85°C. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

59010-1-T-02-B

Littelfuse Inc.In Stock: 88859010-1-T-02-B Datasheet

Current PartRFQ

59010-1-T-02-A

Littelfuse Inc.In Stock: 104059010-1-T-02-A Datasheet

MFR RecommendedRFQ

59010-1-T-02-F

LittelfuseIn Stock: 199959010-1-T-02-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 59010-1-T-02-B is determined by strict alignment across the following critical parameters:

• Output Configuration: SPST-NO switching behavior must be maintained
• Actuator Type: Magnetic actuation requirement
• Actuation Distance: 4.50mm must operate threshold
• Operating Temperature Range: -40°C to 85°C operational envelope
• Termination Interface: Wire lead connection method
• Package Form Factor: Probe configuration
• Compliance Standards: ROHS3 compliance and MSL rating

Two substitute parts meet these criteria: 59010-1-T-02-A (active status, standard wire leads) and 59010-1-T-02-F (active status, wire leads with connector interface). Both maintain identical electrical switching characteristics, thermal performance, and magnetic sensitivity specifications as the original part.

Parameter Comparison

Engineering Selection Recommendations

59010-1-T-02-A is the primary substitute for direct replacement applications. This part maintains active product status with Littelfuse, ensuring ongoing availability and supply chain continuity. It provides identical electrical and mechanical specifications to the obsolete 59010-1-T-02-B, with wire lead termination matching the original design interface. ROHS3 compliance and MSL-1 rating are maintained.

59010-1-T-02-F serves as an alternative substitute where connector-based termination is acceptable or preferred. This variant introduces a wire lead with connector interface, providing enhanced mechanical robustness in applications requiring frequent connection/disconnection cycles. Active product status and full compliance certification are maintained. Selection between 59010-1-T-02-A and 59010-1-T-02-F depends on termination interface requirements within the target application.

Frequently Asked Questions (FAQ)

Q: Can 59010-1-T-02-A directly replace 59010-1-T-02-B in existing designs?

A: Yes. Both parts share identical SPST-NO output configuration, 4.50mm magnetic actuation distance, -40°C to 85°C operating range, probe package form factor, and wire lead termination. Electrical and mechanical compatibility is maintained.

Q: What is the primary difference between 59010-1-T-02-A and 59010-1-T-02-F?

A: The termination interface differs. 59010-1-T-02-A uses standard wire leads, while 59010-1-T-02-F incorporates wire leads with a connector interface. Both maintain identical switching characteristics and thermal specifications.

Q: Why is 59010-1-T-02-B classified as obsolete?

A: Product status reflects Littelfuse's discontinuation of this specific variant. Active alternatives 59010-1-T-02-A and 59010-1-T-02-F provide equivalent functionality with ongoing manufacturer support.

Q: Are compliance certifications maintained across all three parts?

A: Yes. All three parts—59010-1-T-02-B, 59010-1-T-02-A, and 59010-1-T-02-F—carry ROHS3 compliance and MSL-1 (Unlimited) moisture sensitivity ratings.

Q: Which substitute should be selected for new designs?

A: 59010-1-T-02-A is recommended for new designs requiring standard wire lead termination. 59010-1-T-02-F is appropriate where connector-based termination provides system integration advantages. Both are active products with full manufacturer support.