MSSA1350 Equivalent & Substitute Parts

Part Overview

The MSSA1350 is a slide switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a single-pole triple-throw (SP3T) switch with a 300mA AC current rating at 125V. This through-hole mounted component features a standard actuator with epoxy sealed terminals and is designed for on-on-on switching applications with make-before-break (MBB) contact timing.

The MSSA1350 carries an obsolete product status. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this switch specification remains functionally required.

Substiute Parts

MSSA1350

TE Connectivity ALCOSWITCH SwitchesIn Stock: 864MSSA1350 Datasheet

Current PartRFQ

1825194-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8271825194-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSSA1350 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 (SP3T), contact timing (MBB), switch function (On-On-On), current rating (300mA AC), and voltage rating (125V AC) must be identical.

Mechanical Parameters: Mounting type (through hole), termination style (PC pin), actuator length (10.16mm), switch travel (2.00mm), operating force (600gf), and actuator type (standard) must be identical.

Performance Parameters: Mechanical life (15,000 cycles), electrical life (15,000 cycles), and operating temperature range (-20°C to 85°C) must be identical.

Material Specifications: Contact material (copper alloy) and contact finish (silver) must be identical.

The substitute part 1825194-1 meets all these criteria and is therefore a direct functional equivalent to the MSSA1350.

Parameter Comparison

Engineering Selection Recommendations

The MSSA1350 is classified as obsolete, making the active substitute part 1825194-1 the appropriate selection for ongoing production and component replacement applications.

Part 1825194-1 maintains complete electrical and mechanical equivalence to the MSSA1350 across all functional parameters. Both components are manufactured by TE Connectivity ALCOSWITCH Switches within the MSSA series and deliver identical performance in SP3T switching applications at 300mA and 125V AC ratings.

The primary distinction between these parts is product lifecycle status: MSSA1350 is obsolete while 1825194-1 is active. This status difference, combined with the active part's availability (766 units in stock versus 835 units for the obsolete part), establishes 1825194-1 as the recommended substitute for new designs and component replenishment.

A secondary material difference exists in the actuator composition: MSSA1350 uses polyester while 1825194-1 uses polyamide (PA66/Nylon 6/6). Both materials are suitable for the specified operating temperature range and mechanical duty cycle. The polyamide actuator in 1825194-1 provides equivalent functional performance within the application parameters.

RoHS compliance status differs between the parts. This distinction should be evaluated against specific end-application regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can 1825194-1 be used as a direct replacement for MSSA1350 in existing designs?

A: Yes. Part 1825194-1 is electrically and mechanically equivalent to MSSA1350. All critical parameters including circuit configuration, current and voltage ratings, mounting type, actuator dimensions, and lifecycle specifications are identical. Direct substitution is supported without design modification.

Q: What is the difference between the actuator materials in these two parts?

A: MSSA1350 uses a polyester actuator while 1825194-1 uses polyamide (PA66/Nylon 6/6). Both materials operate within the specified temperature range of -20°C to 85°C and support the 15,000-cycle mechanical life requirement. The material difference does not affect functional performance in the specified application envelope.

Q: Why is MSSA1350 listed as obsolete?

A: MSSA1350 carries an obsolete product status, indicating it is no longer in active production. Part 1825194-1 is the active equivalent within the MSSA series and is the recommended selection for new production and component replenishment.

Q: Are there packaging differences between these parts?

A: MSSA1350 is supplied in standard packaging while 1825194-1 is supplied in bulk packaging. Both parts are identical in form, fit, and function. Packaging selection should be based on procurement volume and inventory management requirements.

Q: Do both parts meet the same compliance standards?

A: Both parts carry identical ECCN (EAR99) and HTSUS (8536.50.9050) classifications. RoHS compliance status differs: MSSA1350 is RoHS non-compliant while 1825194-1 is listed as not applicable. Compliance requirements should be verified against specific end-application regulatory obligations.

Q: What is the current availability of these parts?

A: MSSA1350 has 835 units in stock. Part 1825194-1 has 766 units in stock. Both are available as new original components. For long-term supply assurance, 1825194-1 is recommended due to its active product status.