MHS123 Equivalent & Substitute Parts

Part Overview

The MHS123 is a slide switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a Single Pole Double Throw (SPDT) switch with a 300mA AC current rating at 125V. The switch features a through-hole mounting design with PC pin termination and epoxy sealed terminals. The MHS123 is classified as an obsolete product, necessitating identification of active equivalent components for continued system support and procurement.

Substiute Parts

MHS123

TE Connectivity ALCOSWITCH SwitchesIn Stock: 915MHS123 Datasheet

Current PartRFQ

1825255-5

TE Connectivity ALCOSWITCH SwitchesIn Stock: 37241825255-5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MHS123 is determined by electrical and mechanical parameter equivalence. The primary substitute part 1825255-5 maintains identical specifications across all critical functional parameters: SPDT circuit configuration, 300mA AC current rating, 125V AC voltage rating, shorting contact timing, On-Off-On switch function, standard actuator type with 4.50mm length, copper alloy contacts with silver finish, through-hole mounting with PC pin termination, -20°C to 85°C operating temperature range, 2.00mm switch travel, 15,000 cycle mechanical and electrical life ratings, and 600gf operating force.

The substitution is valid based on the following key parameters:

• Identical electrical ratings (current, voltage, circuit type)
• Identical mechanical specifications (actuator dimensions, switch travel, operating force)
• Identical contact materials and finishes
• Identical mounting and termination configuration
• Identical environmental operating range
• Identical lifecycle ratings

Parameter Comparison

Engineering Selection Recommendations

The part 1825255-5 is the direct equivalent substitute for the obsolete MHS123. Both components are manufactured by TE Connectivity ALCOSWITCH Switches and share identical electrical and mechanical specifications. The primary distinction is product status: MHS123 is obsolete while 1825255-5 is active and currently in production.

Selection of 1825255-5 is supported by the following factors:

• Complete electrical parameter equivalence across all ratings and circuit configurations
• Complete mechanical parameter equivalence including actuator geometry, switch travel, and operating force
• Identical contact material composition and surface finish specifications
• Identical mounting and termination configuration for direct PCB integration
• Identical environmental operating temperature range
• Identical lifecycle performance ratings
• Active product status ensuring continued availability and supply chain support
• Compliance with identical regulatory classifications (ECCN EAR99, HTSUS 8536.50.9050)
• RoHS3 compliance certification on the substitute part

Frequently Asked Questions (FAQ)

Q: Can 1825255-5 be used as a direct replacement for MHS123 in existing designs?

A: Yes. The 1825255-5 maintains identical electrical ratings (300mA AC at 125V), circuit configuration (SPDT), contact timing (shorting MBB), switch function (On-Off-On), and mechanical specifications (4.50mm actuator length, 2.00mm switch travel, 600gf operating force). Through-hole mounting and PC pin termination are identical, enabling direct PCB integration without design modification.

Q: What is the primary reason for substitution?

A: The MHS123 is classified as obsolete. The 1825255-5 is the active equivalent part from the same manufacturer and series, ensuring continued procurement and supply chain availability.

Q: Are there packaging differences between MHS123 and 1825255-5?

A: The MHS123 is supplied in standard packaging, while 1825255-5 is supplied in bulk packaging. Both configurations contain the identical component. Bulk packaging does not affect electrical or mechanical performance.

Q: Do the substitute parts have different compliance certifications?

A: Both parts share identical ECCN (EAR99) and HTSUS (8536.50.9050) classifications. The 1825255-5 carries RoHS3 compliance certification. Both parts are REACH unaffected or vendor undefined, indicating no conflict with chemical substance regulations.

Q: Are the operating temperature ranges identical?

A: Yes. Both MHS123 and 1825255-5 operate across the identical temperature range of -20°C to 85°C.

Q: Do the lifecycle ratings differ between the parts?

A: No. Both components are rated for 15,000 mechanical cycles and 15,000 electrical cycles, providing equivalent reliability and service life expectations.

Q: Is the contact material composition the same?

A: Yes. Both parts use copper alloy contacts with silver finish, ensuring identical electrical conductivity and contact resistance characteristics.