Littelfuse 59025-3-S-01-F Equivalent & Substitute Parts

Part Overview

The Littelfuse 59025-3-S-01-F is a magnetic reed switch sensor with SPDT (Single Pole Double Throw) output configuration and wire lead termination. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing procurement and system integration. The 59025 series provides reliable magnetic actuation for applications requiring contact switching based on magnetic field presence or absence.

Substiute Parts

59025-3-S-01-F

Littelfuse Inc.In Stock: 83259025-3-S-01-F Datasheet

Current PartRFQ

59025-3-S-02-A

Littelfuse Inc.In Stock: 146359025-3-S-02-A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 59025-3-S-01-F is determined by strict equivalence across the following critical parameters:

• Output Configuration: SPDT switching capability
• Actuator Type: Magnetic actuation
• Termination: Wire leads
• Actuation Distance: 7.00 mm must-operate specification
• Temperature Range: -40°C to +105°C operational envelope
• Compliance: ROHS3 compliance and MSL rating
• Series Continuity: 59025 series designation

The substitute part 59025-3-S-02-A maintains identical electrical and mechanical specifications while offering active product status and improved inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The 59025-3-S-02-A is the direct functional equivalent for the obsolete 59025-3-S-01-F. Both components share identical electrical characteristics, mechanical specifications, and environmental ratings. The primary distinction is product lifecycle status: the 59025-3-S-02-A maintains active manufacturing status with established supply chain availability (1424 units in stock versus 801 units for the obsolete variant).

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The wire lead termination and probe package configuration remain consistent, ensuring direct integration into existing circuit designs without modification.

Frequently Asked Questions (FAQ)

Q: Can the 59025-3-S-02-A directly replace the 59025-3-S-01-F in existing designs?

A: Yes. Both components are electrically and mechanically identical across all specified parameters, including SPDT output, 7.00 mm actuation distance, wire lead termination, and operating temperature range. No circuit or mechanical modifications are required.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active product status indicates ongoing manufacturing and supply chain support. The 59025-3-S-02-A is recommended for new designs and long-term procurement planning. Existing inventory of the 59025-3-S-01-F may be used for current production, but future orders should transition to the active equivalent.

Q: Are there packaging differences between these parts?

A: The 59025-3-S-02-A is supplied in box packaging, while packaging information for the 59025-3-S-01-F is not specified. Both maintain identical probe package / case configuration for the component itself.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 59025-3-S-01-F and 59025-3-S-02-A are ROHS3 compliant with MSL rating of 1 (Unlimited). The 59025-3-S-02-A additionally specifies REACH unaffected status.

Q: What is the must-operate distance specification?

A: Both components require a 7.00 mm distance for magnetic actuation. This specification defines the minimum separation between the magnet actuator and the reed switch sensor for reliable contact closure.