MSS2220G Equivalent & Substitute Parts

Part Overview

The MSS2220G is a slide switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a Double Pole Double Throw (DPDT) switch with a rated capacity of 300mA at 125V AC. This component features a through-hole mounting configuration with epoxy sealed terminals and is designed for On-On switching applications with shorting contact timing (Make-Before-Break).

The MSS2220G is classified as an obsolete product. Identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and redesign activities for systems currently utilizing this component.

Substiute Parts

MSS2220G

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1132MSS2220G Datasheet

Current PartRFQ

1825261-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 32281825261-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSS2220G is constrained by the following critical electrical and mechanical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be DPDT
• Contact timing must be Shorting (MBB)
• Switch function must be On-On
• Current and voltage ratings must meet or exceed application requirements

Mechanical Compatibility Requirements:

• Mounting type must be Through Hole
• Termination style must be PC Pin
• Actuator material and operating force must be compatible with existing mechanical interfaces
• Operating temperature range must encompass -20°C to 85°C

Identified Substitute: The part number 1825261-2 shares the same series designation (MSS), circuit configuration (DPDT), contact timing (Shorting MBB), switch function (On-On), mounting type (Through Hole), termination style (PC Pin), actuator material (POM), operating temperature range (-20°C to 85°C), mechanical life (15,000 cycles), and electrical life (15,000 cycles).

However, 1825261-2 operates at reduced electrical ratings (0.4VA at 20V AC/DC) compared to the MSS2220G (300mA at 125V AC). This substitute is suitable only for applications where the lower voltage and current specifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

MSS2220G (Obsolete): The MSS2220G is no longer in active production. While 1,043 units remain available in inventory as new original stock, this component should not be selected for new designs. The obsolete status indicates that manufacturer support, technical documentation updates, and long-term availability cannot be assured.

1825261-2 (Active Substitute): The 1825261-2 is an active product from the same manufacturer and series. This part maintains electrical and mechanical compatibility with the MSS2220G for applications operating at 20V AC/DC with current requirements not exceeding 0.4VA. The 1825261-2 carries ROHS3 compliance certification, supporting modern regulatory requirements. Inventory availability is higher (3,203 units), and the active product status ensures continued manufacturer support.

Selection Criteria:

• For applications requiring 125V AC operation at 300mA, the MSS2220G cannot be substituted. Alternative DPDT slide switches from current product lines must be evaluated.
• For applications operating at 20V AC/DC with current requirements of 0.4VA or less, the 1825261-2 is a direct functional substitute with superior compliance status and availability.

Frequently Asked Questions (FAQ)

Q: Can the 1825261-2 replace the MSS2220G in all applications?

A: No. The 1825261-2 operates at significantly lower electrical ratings (20V AC/DC, 0.4VA) compared to the MSS2220G (125V AC, 300mA). Substitution is valid only for applications where the lower voltage and current specifications are acceptable. Applications requiring 125V AC operation at 300mA cannot use the 1825261-2.

Q: What are the key mechanical similarities between these parts?

A: Both parts share identical mechanical characteristics: Through Hole mounting, PC Pin termination, POM actuator material, 600gf operating force, 2.00mm switch travel, 15,000 cycle mechanical life, and -20°C to 85°C operating temperature range. These parameters ensure physical and functional compatibility in the circuit board layout.

Q: Why does the MSS2220G have a silver contact finish while the 1825261-2 has gold?

A: Contact finish is determined by the electrical rating requirements of each part. The silver finish on the MSS2220G supports higher current and voltage operation. The gold finish on the 1825261-2 is suitable for the lower voltage and current specifications of that part. Contact finish does not affect substitution compatibility when electrical ratings are met.

Q: Is the 1825261-2 compliant with modern regulatory standards?

A: The 1825261-2 carries ROHS3 compliance certification, supporting current regulatory requirements for electronic components. The MSS2220G status for ROHS compliance is not specified. For new designs or systems requiring regulatory compliance documentation, the 1825261-2 is the preferred choice.

Q: What is the difference between the MSS2220G and 1825261-2 in terms of product availability?

A: The MSS2220G is classified as obsolete with 1,043 units in stock. The 1825261-2 is an active product with 3,203 units in stock. Active product status ensures continued manufacturer support, technical documentation availability, and long-term supply chain reliability.

Q: Are there any differences in the epoxy sealed terminal construction?

A: Both parts feature epoxy sealed terminals as specified. This feature provides environmental protection for the PC pin terminations. No differences in terminal construction are indicated in the provided specifications.