MA12R Slide Switch SPDT Equivalent & Substitute Parts

Part Overview

The MA12R is a slide switch manufactured by APEM Inc., classified as a Surface Mount, Right Angle SPDT (Single Pole Double Throw) switch rated for 300mA DC at 4V. This component features a standard actuator with 1.50mm travel and silver-plated beryllium copper contacts, designed for on-on switching applications. The MA12R is currently listed as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity.

Substiute Parts

MA12R

APEM Inc.In Stock: 1155MA12R Datasheet

Current PartRFQ

SK-12C0405-SG 1.5 RT

C&KIn Stock: 5373SK-12C0405-SG 1.5 RT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MA12R is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPDT topology must be maintained
• Electrical Ratings: Current (300mA DC) and voltage (4V DC) must be met or exceeded
• Mechanical Interface: Surface mount, right angle orientation with gull wing termination
• Actuator Geometry: 1.50mm actuator length and 1.50mm switch travel
• Switch Function: On-on operation
• Contact System: Silver finish for electrical performance
• Lifecycle Compliance: ROHS3 compliance and MSL 1 rating

The SK-12C0405-SG 1.5 RT manufactured by C&K meets all these criteria and is classified as an active product, providing long-term availability for design continuity.

Parameter Comparison

Engineering Selection Recommendations

The SK-12C0405-SG 1.5 RT is the qualified substitute for the obsolete MA12R. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute maintains identical electrical ratings, mechanical dimensions, and contact specifications. As an active product from C&K, the SK-12C0405-SG 1.5 RT provides assured long-term availability and supply chain stability compared to the obsolete MA12R. Operating force differs slightly (150gf versus 200gf on the original), but this remains within acceptable design tolerance for on-on switching applications at the specified electrical ratings.

Frequently Asked Questions (FAQ)

Q: Can the SK-12C0405-SG 1.5 RT be used as a direct replacement for the MA12R?

A: Yes. Both components share identical circuit configuration (SPDT), electrical ratings (300mA at 4V DC), mechanical interface (surface mount, right angle, gull wing termination), and actuator geometry (1.50mm length and travel). Footprint compatibility is maintained.

Q: What is the difference in operating force between these parts?

A: The MA12R specifies 200gf operating force, while the SK-12C0405-SG 1.5 RT specifies 150gf. This difference does not affect electrical performance or switching reliability at the rated current and voltage levels.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the MA12R and SK-12C0405-SG 1.5 RT are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What packaging is available for the substitute part?

A: The SK-12C0405-SG 1.5 RT is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: Why is the MA12R listed as obsolete?

A: The MA12R is no longer in active production. The SK-12C0405-SG 1.5 RT from C&K provides functional equivalence with active product status and assured availability.