MPS73WGW Equivalent & Substitute Parts

Part Overview

The MPS73WGW is a magnetic reed switch manufactured by C&K, classified as a SPST-NO (Single Pole Single Throw - Normally Open) sensor. This component features wire leads termination and is designed for applications requiring magnetic actuation. The product is currently listed as obsolete, making identification of equivalent substitute parts essential for ongoing system support and component procurement.

Substiute Parts

MPS73WGW

C&KIn Stock: 1153MPS73WGW Datasheet

Current PartRFQ

59025-1-S-02-A

Littelfuse Inc.In Stock: 112359025-1-S-02-A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPS73WGW is based on the following critical parameters that must align between the main part and substitute candidates:

• Output Type: SPST-NO configuration is mandatory for functional equivalence
• Actuator Material: Magnet-based actuation is required
• Termination Style: Wire Leads connection method must be maintained
• Operating Temperature Range: The substitute must support the required thermal envelope
• RoHS and REACH Compliance: Environmental and regulatory compliance status must be verified

The identified substitute part 59025-1-S-02-A from Littelfuse Inc. shares the core functional characteristics (SPST-NO reed switch with magnet actuation and wire leads), though differences exist in specific operational parameters and package configuration.

Parameter Comparison

Engineering Selection Recommendations

The 59025-1-S-02-A from Littelfuse Inc. is an active product suitable for replacing the obsolete MPS73WGW in applications where the operational distance parameters can be accommodated. Key considerations for selection:

• The substitute operates at a significantly shorter must-operate distance (8.00mm versus 31.75mm), which may require mechanical redesign of the magnet positioning in the application
• Both parts maintain SPST-NO functionality and magnet-based actuation, ensuring core switching behavior is preserved
• The substitute offers an extended operating temperature range (-40°C to 105°C), providing additional thermal margin
• Both parts meet RoHS compliance requirements; the substitute carries ROHS3 certification, representing current compliance standards
• The substitute is currently in active production status, ensuring long-term availability and supply chain stability

Frequently Asked Questions (FAQ)

Q: Can the 59025-1-S-02-A directly replace the MPS73WGW without circuit modifications?

A: Both parts are SPST-NO reed switches with magnet actuation and wire leads termination. However, the significant difference in must-operate distance (8.00mm versus 31.75mm) requires evaluation of the mechanical assembly. If the application's magnet positioning can be adjusted to accommodate the shorter actuation distance, functional replacement is possible.

Q: What is the impact of the different package configurations?

A: The MPS73WGW uses a rectangular wire leads package, while the 59025-1-S-02-A uses a probe package. These physical differences may affect mounting and spatial integration within the application. Mechanical compatibility must be assessed based on available board space and connector requirements.

Q: Are there compliance differences between these parts?

A: Both parts are RoHS compliant and REACH unaffected. The 59025-1-S-02-A carries ROHS3 certification, which represents the current RoHS directive compliance standard. Both parts meet the same HTSUS classification (8536.50.9065) and ECCN designation (EAR99).

Q: Why is the must-release distance not specified for the substitute?

A: The 59025-1-S-02-A datasheet does not provide an explicit must-release distance value. This parameter should be obtained from the manufacturer's technical documentation to ensure the part meets the application's release timing requirements.

Q: Is the extended temperature range of the substitute beneficial?

A: The 59025-1-S-02-A supports -40°C to 105°C operation, compared to the MPS73WGW's -40°C to 100°C range. This provides an additional 5°C of upper thermal margin, which may be advantageous in applications operating near temperature limits.