MJS12R Equivalent & Substitute Parts

Part Overview

The MJS12R is a slide switch manufactured by APEM Inc., designed for SPDT (Single Pole Double Throw) switching applications with a 100mA DC rating at 12V. This component features a through-hole, right-angle mounting configuration with PC pin termination and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

MJS12R

APEM Inc.In Stock: 934MJS12R Datasheet

Current PartRFQ

1825282-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 58901825282-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MJS12R is determined by strict alignment with the following critical parameters:

• Circuit topology: SPDT configuration required for functional equivalence
• Electrical ratings: 100mA DC current and 12V DC voltage must be met or exceeded
• Mechanical interface: Through-hole, right-angle mounting with PC pin termination ensures PCB compatibility
• Physical dimensions: Actuator length (2.50mm) and switch travel (2.00mm) must match to maintain mechanical fit and user interface consistency
• Contact system: Silver finish contact material ensures electrical performance parity
• Switching function: On-On operation required for application compatibility
• Compliance: ROHS3 compliance and REACH unaffected status required for regulatory alignment

The substitute part 1825282-1 (TE Connectivity ALCOSWITCH Switches, SSJ series) meets all these criteria and is classified as active, providing long-term availability and production support.

Parameter Comparison

Engineering Selection Recommendations

The 1825282-1 from TE Connectivity ALCOSWITCH Switches is the qualified substitute for the obsolete MJS12R. Selection rationale is based on:

• Functional equivalence: All critical electrical and mechanical parameters align with the original specification
• Active product status: The 1825282-1 is actively manufactured and supported, ensuring long-term availability and supply chain stability
• Regulatory compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements
• Enhanced operating range: The substitute provides an extended operating temperature range (-20°C to 70°C versus -10°C to 60°C), offering improved thermal margin
• Mechanical compatibility: Identical mounting interface, actuator dimensions, and switch travel ensure direct PCB-level substitution without redesign

No design modifications are required for component replacement in existing applications.

Frequently Asked Questions (FAQ)

Q: Can the 1825282-1 be used as a direct replacement for the MJS12R without PCB modifications?

A: Yes. The 1825282-1 maintains identical through-hole, right-angle mounting geometry, PC pin termination, actuator length (2.50mm), and switch travel (2.00mm). Direct substitution on existing PCBs is supported.

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

A: The MJS12R specifies 225gf operating force, while the 1825282-1 specifies 250gf. This 25gf difference is within normal manufacturing tolerance for slide switches and does not affect functional compatibility or user interface feel in typical applications.

Q: Does the 1825282-1 support the same electrical ratings as the MJS12R?

A: Yes. Both components are rated for 100mA DC at 12V with SPDT configuration and 10,000 cycle electrical life. Electrical performance is equivalent.

Q: Why is the MJS12R classified as obsolete?

A: The MJS12R is no longer in active production. The 1825282-1 provides an equivalent active alternative for new designs and production continuity.

Q: Are there any compliance differences between the MJS12R and 1825282-1?

A: No. Both components are ROHS3 compliant and REACH unaffected. Regulatory status is identical.

Q: What is the packaging difference between these parts?

A: The MJS12R is supplied in standard packaging, while the 1825282-1 is supplied in bulk packaging. This does not affect component performance or compatibility.

Q: Does the extended temperature range of the 1825282-1 provide any advantage?

A: The 1825282-1 operates from -20°C to 70°C compared to the MJS12R range of -10°C to 60°C. This wider range provides additional thermal margin for applications exposed to extreme environmental conditions.