TE Connectivity ALCOSWITCH MHS122G Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH MHS122G is a slide switch with Single Pole Double Throw (SPDT) configuration, rated for 0.4VA at 20V AC/DC. This component features a through-hole mounting design with gold-plated copper alloy contacts and epoxy-sealed terminals. The MHS122G is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

MHS122G

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1047MHS122G Datasheet

Current PartRFQ

1825255-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8871825255-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MHS122G is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Electrical Parameters: Circuit configuration (SPDT), contact timing (Shorting/MBB), switch function (On-On), current rating (0.4VA AC/DC), and voltage ratings (20V AC and 20V DC).

Mechanical Parameters: Actuator type (Standard), actuator length (4.50mm), contact material (Copper Alloy), contact finish (Gold), mounting type (Through Hole), termination style (PC Pin), operating temperature range (-20°C to +85°C), switch travel (4.00mm), mechanical life (15,000 cycles), electrical life (15,000 cycles), and operating force (600gf).

Manufacturing Specifications: Both parts originate from TE Connectivity ALCOSWITCH Switches and belong to the MHS series family.

Parts meeting all these criteria are classified as direct equivalents and may be used interchangeably in circuit designs and PCB layouts without modification.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity ALCOSWITCH part number 1825255-2 is a direct functional and mechanical equivalent to the obsolete MHS122G. All electrical parameters, mechanical dimensions, contact specifications, and environmental ratings are identical between the two parts.

The primary distinction is product status: the MHS122G is classified as obsolete, while the 1825255-2 is active in the TE Connectivity product line. This status difference makes the 1825255-2 the appropriate selection for new designs, production builds, and ongoing supply chain requirements.

Both parts carry identical export classification (EAR99) and tariff codes (8536.50.9050), indicating no regulatory or compliance barriers to substitution. The 1825255-2 maintains the same through-hole PC pin termination, gold-plated copper alloy contacts, and epoxy-sealed terminal construction as the original MHS122G.

For applications currently using the MHS122G, direct replacement with the 1825255-2 requires no circuit redesign, PCB layout modification, or functional requalification, as all performance parameters remain constant.

Frequently Asked Questions (FAQ)

Q: Can the 1825255-2 be used as a direct replacement for the MHS122G in existing designs?

A: Yes. The 1825255-2 is electrically and mechanically identical to the MHS122G across all specified parameters. No circuit modifications, PCB layout changes, or functional requalification are required. The parts are pin-compatible and functionally interchangeable.

Q: What is the primary reason for substituting the MHS122G?

A: The MHS122G is classified as obsolete. The 1825255-2 is the active equivalent part from TE Connectivity ALCOSWITCH Switches, ensuring continued supply availability and long-term component sourcing for production and repair applications.

Q: Are the electrical ratings identical between the MHS122G and 1825255-2?

A: Yes. Both parts are rated for 0.4VA at 20V AC/DC with SPDT configuration, shorting contact timing, and On-On switch function. Current and voltage specifications are identical.

Q: Do the mechanical dimensions match between these parts?

A: Yes. Both parts feature identical actuator length (4.50mm), switch travel (4.00mm), operating force (600gf), and through-hole PC pin termination. The parts are mechanically interchangeable.

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

A: Both the MHS122G and 1825255-2 operate across the temperature range of -20°C to +85°C.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both parts carry identical ECCN classification (EAR99) and HTSUS tariff codes (8536.50.9050). No regulatory barriers exist to substitution.

Q: What is the mechanical and electrical life rating for these switches?

A: Both parts are rated for 15,000 mechanical cycles and 15,000 electrical cycles.

Q: Is the contact material and finish the same for both parts?

A: Yes. Both parts use copper alloy contacts with gold plating and epoxy-sealed terminals.