MMS22R Equivalent & Substitute Parts

Part Overview

The MMS22R is a slide switch with DPDT (Double Pole Double Throw) configuration manufactured by APEM Inc. It is rated for 300mA DC at 30V with through-hole, right-angle mounting. The product is currently obsolete, making identification of compatible alternatives essential for ongoing maintenance, repair, and redesign applications. This reference provides equivalent and substitute parts based on electrical and mechanical compatibility parameters.

Substiute Parts

MMS22R

APEM Inc.In Stock: 1023MMS22R Datasheet

Current PartRFQ

1437575-7

TE Connectivity ALCOSWITCH SwitchesIn Stock: 7091437575-7 Datasheet

SimilarRFQ

MMS22R

TE Connectivity ALCOSWITCH SwitchesIn Stock: 941MMS22R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MMS22R is determined by the following critical parameters:

• Circuit Configuration: DPDT topology must be maintained
• Voltage Rating: Minimum 30V DC capability required
• Current Rating: Substitute must support the application's current demand
• Mounting and Termination: Through-hole, right-angle configuration with PC pin termination
• Physical Dimensions: Actuator length and switch travel compatibility
• Contact Material and Finish: Silver-finished contacts for electrical performance
• Operating Temperature: Functional range must encompass application requirements
• Electrical Life: Minimum 10,000 cycles for reliability

The substitute parts identified below meet the DPDT, 30V, through-hole right-angle, and PC pin termination requirements. Current rating differences are noted as they affect application suitability.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration: Current Rating Limitation

Both TE Connectivity substitutes (1437575-7 and MMS22R) are rated for 100mA DC, which is one-third the current capacity of the original APEM MMS22R (300mA). Selection of these substitutes is appropriate only for applications where the actual circuit current does not exceed 100mA.

TE Connectivity MMS22R (Active, ROHS3 Compliant)

This part is the preferred substitute when current requirements are within 100mA limits. It maintains ROHS3 compliance matching the original specification and is currently in active production with confirmed inventory availability. The contact timing is specified as Shorting (MBB), which provides momentary contact overlap during switching transitions.

TE Connectivity 1437575-7 (Active, Non-Shorting Contact Timing)

This alternative offers Non-Shorting (BBM) contact timing, which eliminates momentary contact overlap. Selection depends on circuit requirements for contact transition behavior. RoHS status is not applicable for this part number variant.

Temperature Range Consideration

Both TE Connectivity substitutes operate to 60°C maximum, compared to the original 70°C upper limit. Applications requiring operation above 60°C are not suitable for these substitutes.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity MMS22R (100mA) directly replace the APEM MMS22R (300mA)?

A: Direct replacement is possible only if the application circuit current does not exceed 100mA. The substitute has identical DPDT configuration, 30V rating, through-hole right-angle mounting, and PC pin termination. However, the reduced current rating must be verified against actual circuit requirements before implementation.

Q: What is the difference between the two TE Connectivity substitutes?

A: The primary difference is contact timing behavior. The 1437575-7 uses Non-Shorting (BBM) contact timing, while the MMS22R uses Shorting (MBB) contact timing. BBM (Break-Before-Make) ensures no momentary contact overlap; MBB (Make-Before-Break) creates brief contact overlap during transitions. Selection depends on circuit sensitivity to contact transition characteristics.

Q: Are there physical compatibility concerns with the slightly longer actuator length (4.29mm vs. 4.00mm)?

A: The 0.29mm difference in actuator length may affect panel cutout fit and actuator clearance. Mechanical verification against the specific application's physical constraints is necessary before final selection.

Q: Do the substitutes meet the same compliance standards?

A: The TE Connectivity MMS22R is ROHS3 compliant, matching the original. The 1437575-7 has RoHS status listed as not applicable. Both parts carry EAR99 ECCN and identical HTSUS classification. Compliance requirements for your specific application should be confirmed.

Q: What is the maximum operating temperature for these substitutes?

A: Both TE Connectivity substitutes are rated to 60°C maximum, compared to the original 70°C. Applications requiring sustained operation above 60°C are not suitable for these alternatives.