MSS1200 Equivalent & Substitute Parts

Part Overview

The MSS1200 is a slide switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a Single Pole Double Throw (SPDT) switch with a current rating of 300mA at 125V AC. The switch features through-hole mounting with PC pin termination and is designed for on-on switching applications with make-before-break contact timing.

The MSS1200 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and repair requirements for systems utilizing this component.

Substiute Parts

MSS1200

TE Connectivity ALCOSWITCH SwitchesIn Stock: 981MSS1200 Datasheet

Current PartRFQ

1825257-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 41461825257-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSS1200 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following areas:

Electrical Parameters: Circuit configuration (SPDT), current rating (300mA AC), voltage rating (125V AC), and contact timing (shorting/MBB).

Mechanical Parameters: Actuator length (5.00mm), switch travel (2.00mm), operating force (600gf), and mounting type (through hole with PC pin termination).

Material and Environmental Parameters: Contact material (copper alloy), contact finish (silver), operating temperature range (-20°C to 85°C), mechanical life (15,000 cycles), and electrical life (15,000 cycles).

The substitute part 1825257-1 meets all these criteria and is therefore classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The part 1825257-1 is the direct equivalent substitute for the obsolete MSS1200. Both components are manufactured by TE Connectivity ALCOSWITCH Switches and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction between the two parts is product status: the MSS1200 is obsolete, while 1825257-1 carries active product status. Additionally, 1825257-1 is certified as ROHS3 compliant, providing enhanced regulatory alignment for new designs and ongoing production.

From an engineering perspective, 1825257-1 is suitable for direct replacement in applications currently utilizing the MSS1200. The component maintains full compatibility with existing PCB layouts, mounting requirements, and electrical performance specifications. The active product status of 1825257-1 ensures continued availability and supply chain support.

Frequently Asked Questions (FAQ)

Q: Can 1825257-1 be used as a direct replacement for MSS1200 in existing designs?

A: Yes. The 1825257-1 is electrically and mechanically equivalent to the MSS1200 across all specified parameters, including circuit configuration, current and voltage ratings, actuator dimensions, and contact characteristics. No design modifications are required for substitution.

Q: What is the primary reason for substituting MSS1200 with 1825257-1?

A: The MSS1200 carries an obsolete product status, which impacts long-term availability and supply chain continuity. The 1825257-1 is an active product from the same manufacturer and series, ensuring ongoing availability and support.

Q: Are there any differences in packaging between MSS1200 and 1825257-1?

A: The MSS1200 is specified with packaging listed as a dash (-), while 1825257-1 is supplied in bulk packaging. Both components are identical in form, fit, and function. Packaging differences do not affect component performance or compatibility.

Q: Does 1825257-1 meet current regulatory requirements?

A: Yes. The 1825257-1 is ROHS3 compliant and maintains REACH unaffected status, consistent with the MSS1200. Both components share identical ECCN (EAR99) and HTSUS (8536.50.9050) classifications.

Q: Are the mechanical life and electrical life ratings identical between the two parts?

A: Yes. Both the MSS1200 and 1825257-1 are rated for 15,000 mechanical cycles and 15,000 electrical cycles, with identical operating force (600gf) and switch travel (2.00mm) specifications.

Q: What is the operating temperature range for both components?

A: Both the MSS1200 and 1825257-1 operate across the temperature range of -20°C to 85°C, with identical contact material (copper alloy with silver finish) and actuator material (polyoxymethylene/acetal).