MSSA2350 Equivalent & Substitute Parts

Part Overview

The MSSA2350 is a slide switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a DP3T (Double Pole Triple Throw) through-hole component rated for 300mA AC at 125V. This switch features shorting contact timing (MBB), an on-on-on switch function, and epoxy sealed terminals for environmental protection.

The MSSA2350 carries an obsolete product status. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and production requirements for legacy systems and equipment utilizing this switch configuration.

Substiute Parts

MSSA2350

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1140MSSA2350 Datasheet

Current PartRFQ

1825198-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 9791825198-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSSA2350 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be DP3T
• Current rating must be 300mA AC minimum
• Voltage rating must be 125V AC minimum
• Contact timing must be shorting (MBB)
• Switch function must be on-on-on

Mechanical Compatibility Requirements:

• Mounting type must be through hole
• Termination style must be PC pin
• Contact material and finish must be copper alloy with silver finish
• Operating temperature range must encompass -20°C to 85°C
• Mechanical and electrical life must meet or exceed 15,000 cycles

Environmental Requirements:

• Epoxy sealed terminals must be present

The substitute part 1825198-1 satisfies all critical electrical, mechanical, and environmental parameters required for direct substitution with the MSSA2350.

Parameter Comparison

Engineering Selection Recommendations

The MSSA2350 is classified as obsolete. The substitute part 1825198-1 is an active production component from the same manufacturer and series, providing functional and electrical equivalence for direct replacement applications.

Selection Basis:

1. Electrical Equivalence: Both parts maintain identical DP3T circuit configuration, 300mA AC current rating, and 125V AC voltage rating with shorting contact timing and on-on-on switch function.

2. Mechanical Equivalence: Both parts feature through-hole mounting with PC pin termination, copper alloy contacts with silver finish, and identical switch travel of 2.00mm.

3. Environmental Equivalence: Both parts include epoxy sealed terminals and operate across the identical temperature range of -20°C to 85°C.

4. Production Status: The substitute part 1825198-1 is in active production, ensuring availability and supply chain continuity for legacy system support.

5. Minor Variations: The substitute part features a polyamide (PA66) actuator material in place of polyester, and exhibits a higher operating force of 600gf compared to 470gf. These variations do not affect functional compatibility in applications designed for the MSSA2350.

6. Compliance: The substitute part carries an active product status with identical ECCN (EAR99) and HTSUS (8536.50.9050) classifications.

Frequently Asked Questions (FAQ)

Q: Can the 1825198-1 directly replace the MSSA2350 in existing circuit designs?

A: Yes. The 1825198-1 maintains electrical and mechanical equivalence across all critical parameters including circuit configuration, current and voltage ratings, contact timing, mounting type, and termination style. The component is a direct functional substitute.

Q: What is the significance of the different actuator materials (polyester vs. polyamide)?

A: Both polyester and polyamide (PA66) actuator materials are suitable for slide switch applications within the specified operating temperature range of -20°C to 85°C. The polyamide material in the substitute part provides equivalent performance and durability for the intended application.

Q: Why does the 1825198-1 have a higher operating force (600gf vs. 470gf)?

A: The operating force difference reflects material and design variations between the obsolete and current production versions. The higher operating force of 600gf in the substitute part remains within acceptable parameters for DP3T slide switch applications and does not prevent functional substitution.

Q: Are there any packaging differences between the MSSA2350 and 1825198-1?

A: The MSSA2350 is supplied in standard packaging, while the 1825198-1 is supplied in bulk packaging. Both configurations contain the identical electrical and mechanical component. Packaging selection depends on procurement and inventory requirements.

Q: What is the actuator length difference between these parts?

A: The actuator length varies by 0.02mm (MSSA2350 at 10.41mm versus 1825198-1 at 10.39mm). This variance is negligible and does not affect mechanical fit or functional performance in standard through-hole PCB applications.

Q: Is the 1825198-1 suitable for new design implementations?

A: Yes. The 1825198-1 is an active production component and is the appropriate choice for new designs requiring DP3T slide switch functionality at 300mA AC and 125V AC ratings with through-hole mounting.