MSSA1450R Equivalent & Substitute Parts

Part Overview

The MSSA1450R is a slide switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a single-pole four-throw (SP4T) switch rated for 300mA at 125V AC. This through-hole, right-angle mounted component features epoxy sealed terminals and is designed for applications requiring multiple independent switching positions with make-before-break contact timing.

The MSSA1450R carries an obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

MSSA1450R

TE Connectivity ALCOSWITCH SwitchesIn Stock: 852MSSA1450R Datasheet

Current PartRFQ

1825200-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8651825200-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSSA1450R is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Current rating of 300mA AC minimum
• Voltage rating of 125V AC minimum
• Contact timing configuration (Shorting/MBB)
• Switch function (On-On-On-On positions)

Mechanical Compatibility Criteria:

• Through-hole mounting configuration
• PC pin termination style
• Epoxy sealed terminal construction
• Operating temperature range of -20°C to 85°C or broader
• Mechanical and electrical life ratings of 15,000 cycles minimum

Functional Compatibility: The primary distinction between the MSSA1450R and available substitutes lies in circuit configuration. The MSSA1450R operates as SP4T (single-pole four-throw), while substitute options may employ different pole configurations while maintaining equivalent throw capability and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The 1825200-1 serves as the manufacturer-recommended substitute for the obsolete MSSA1450R. Both components are manufactured by TE Connectivity ALCOSWITCH Switches and share identical electrical ratings, contact materials, and operational characteristics.

Key Considerations:

The 1825200-1 maintains active product status, ensuring ongoing availability and supply chain continuity. This substitute achieves ROHS3 compliance, whereas the MSSA1450R carries no RoHS designation due to its obsolete classification.

The primary functional difference is the circuit configuration: the MSSA1450R operates as SP4T (single-pole four-throw), while the 1825200-1 operates as DP4T (double-pole four-throw). This configuration change increases the number of independent switching poles from one to two, providing additional switching capability within the same physical and electrical envelope.

Both components feature identical current and voltage ratings (300mA AC at 125V AC), matching contact timing (shorting/MBB), equivalent mechanical and electrical life cycles (15,000 cycles), and identical operating temperature ranges (-20°C to 85°C).

The mounting configuration differs slightly: the MSSA1450R specifies right-angle orientation, while the 1825200-1 specifies through-hole mounting without explicit right-angle designation. Actuator length differs between parts (9.02mm versus 10.37mm) and operating force varies (470gf versus 600gf), reflecting the increased pole count in the substitute.

For applications requiring single-pole switching only, the additional pole in the 1825200-1 remains unused but does not compromise functionality. For applications requiring dual-pole switching, the 1825200-1 provides integrated capability without requiring multiple components.

Frequently Asked Questions (FAQ)

Q: Can the 1825200-1 directly replace the MSSA1450R in existing designs?

A: The 1825200-1 provides electrical and mechanical compatibility with the MSSA1450R across all critical parameters: current rating, voltage rating, contact timing, termination style, and operating temperature range. The primary design consideration is the circuit configuration difference (SP4T versus DP4T). If the original design uses only single-pole switching, the additional pole in the 1825200-1 remains unused. PCB layout modifications may be required to accommodate the different actuator length (10.37mm versus 9.02mm) and mounting configuration.

Q: What is the functional difference between SP4T and DP4T configurations?

A: SP4T (single-pole four-throw) provides one independent switching pole with four selectable positions. DP4T (double-pole four-throw) provides two independent switching poles, each with four selectable positions. Both configurations maintain identical electrical ratings and contact timing characteristics. The DP4T configuration offers expanded switching capability within the same component footprint.

Q: Are there compliance differences between the MSSA1450R and 1825200-1?

A: The 1825200-1 is ROHS3 compliant, while the MSSA1450R carries no RoHS designation. Both components share identical ECCN (EAR99) and HTSUS (8536.50.9050) classifications. The REACH status is vendor-undefined for both parts.

Q: What mechanical differences exist between these components?

A: The actuator length differs (MSSA1450R: 9.02mm; 1825200-1: 10.37mm). Operating force also differs (MSSA1450R: 470gf; 1825200-1: 600gf). These differences reflect the increased pole count in the substitute. Switch travel remains identical at 2.00mm for both components. The MSSA1450R specifies right-angle mounting, while the 1825200-1 specifies through-hole mounting.

Q: Are both components available in the same packaging?

A: The MSSA1450R is available in standard packaging, while the 1825200-1 is supplied in bulk packaging. Both components feature PC pin termination and epoxy sealed terminals.

Q: What is the basis for the substitution relationship?

A: The substitution is based on manufacturer recommendation and equivalence across electrical parameters (current, voltage, contact timing, switch function), mechanical parameters (through-hole mounting, PC pin termination, epoxy sealed terminals), and operational characteristics (temperature range, mechanical life, electrical life). Both components are manufactured by TE Connectivity ALCOSWITCH Switches and belong to the same product series.