MSL55 Equivalent & Substitute Parts

Part Overview

The MSL55 is a slide switch with SP5T (single pole, five throw) circuit configuration manufactured by APEM Inc. It is rated for 200mA at 125V AC and 30V DC, featuring through-hole mounting with PC pin termination. The MSL55 is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

MSL55

APEM Inc.In Stock: 1048MSL55 Datasheet

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SLB1570

APEM Inc.In Stock: 7095SLB1570 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The SLB1570 qualifies as a substitute for the MSL55 based on the following critical parameters:

• Circuit Configuration: Both parts feature SP5T switching topology, ensuring identical switching functionality
• Voltage Ratings: Both maintain 125V AC and 30V DC ratings, supporting equivalent electrical operating conditions
• Mounting and Termination: Both utilize through-hole mounting with PC pin termination, enabling direct PCB compatibility
• Contact Material and Finish: Both employ silver contact finish, maintaining consistent electrical performance characteristics
• Compliance Standards: Both are ROHS3 compliant and REACH unaffected, satisfying regulatory requirements
• Electrical Life: Both are rated for 10,000 cycles, providing equivalent operational durability

The SLB1570 is classified as active product status, providing ongoing availability and supply chain continuity compared to the obsolete MSL55.

Parameter Comparison

Engineering Selection Recommendations

The SLB1570 is the designated substitute for the obsolete MSL55 based on electrical and mechanical equivalence within the specified parameter set. Both components satisfy ROHS3 compliance and REACH regulatory requirements.

The SLB1570 provides superior current capacity (300mA versus 200mA), extended operating temperature range (-20°C to 85°C versus -10°C to 60°C), and active product status ensuring supply chain availability. These characteristics make the SLB1570 suitable for applications previously designed with the MSL55.

Physical form factor differences exist: the SLB1570 features a shorter actuator length (5.00mm versus 14.20mm) and reduced switch travel (2.30mm versus 4.00mm). Operating force differs marginally (220gf versus 250gf). These mechanical variations require verification against specific mechanical envelope and actuation requirements in the target application.

Frequently Asked Questions (FAQ)

Q: Can the SLB1570 directly replace the MSL55 in existing designs?

A: The SLB1570 provides electrical equivalence for SP5T switching applications at 125V AC and 30V DC. However, physical form factor differences (actuator length and switch travel) require mechanical compatibility assessment against the specific PCB layout and mechanical constraints of the original design.

Q: What are the key electrical differences between these parts?

A: The SLB1570 is rated for 300mA compared to the MSL55's 200mA, providing higher current capacity. Both maintain identical voltage ratings (125V AC, 30V DC) and electrical life (10,000 cycles). The SLB1570 supports an extended operating temperature range (-20°C to 85°C versus -10°C to 60°C).

Q: Why is the MSL55 obsolete?

A: The MSL55 is classified as obsolete by the manufacturer. The SLB1570 represents the active equivalent within the APEM Inc. product portfolio, ensuring ongoing availability and manufacturing support.

Q: Are there packaging differences between these parts?

A: The MSL55 is specified with standard packaging, while the SLB1570 is supplied in bulk packaging. Both utilize identical through-hole PC pin termination suitable for standard PCB assembly processes.

Q: Do both parts meet the same regulatory standards?

A: Both the MSL55 and SLB1570 are ROHS3 compliant and REACH unaffected, satisfying equivalent regulatory requirements for electronic component applications.