MJS12 Equivalent & Substitute Parts

Part Overview

The MJS12 is a slide switch manufactured by APEM Inc., configured as a Single Pole Double Throw (SPDT) switch rated for 100mA at 12V DC. This through-hole mounted component features a 2.00mm actuator travel and silver-plated contacts, designed for On-On switching applications. The MJS12 is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component procurement.

Substiute Parts

MJS12

APEM Inc.In Stock: 1143MJS12 Datasheet

Current PartRFQ

1825280-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 110561825280-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MJS12 is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPDT topology required for identical switching behavior
• Current and Voltage Ratings: 100mA at 12V DC minimum specification
• Mounting and Termination: Through-hole mounting with PC pin termination for PCB compatibility
• Physical Dimensions: 2.00mm actuator length and switch travel for mechanical fit
• Contact Material and Finish: Silver-plated contacts for electrical performance consistency
• Electrical Life Rating: Minimum 10,000 cycles for operational reliability

The TE Connectivity ALCOSWITCH 1825280-1 meets all substitution criteria. Both components share identical circuit configuration, current/voltage ratings, mounting type, termination style, actuator dimensions, and electrical life specifications. The substitute part is classified as active product status, ensuring continued availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity ALCOSWITCH 1825280-1 is a direct functional equivalent to the obsolete MJS12. Both components satisfy identical electrical and mechanical requirements for SPDT switching applications at 100mA and 12V DC.

The 1825280-1 offers the following advantages for component selection:

• Active Product Status: Ensures long-term availability and supply chain continuity
• Enhanced Temperature Range: Operating range of -20°C to 70°C exceeds the MJS12 specification of -10°C to 60°C
• Compliance Certification: ROHS3 compliant and REACH unaffected, matching the MJS12 regulatory status
• Mechanical Life Rating: 10,000 cycles mechanical life specification provides documented durability
• Sealed Terminal Design: Epoxy sealed terminals offer enhanced environmental protection

The operating force differential of 25gf (250gf versus 225gf) remains within acceptable tolerance for standard actuator applications and does not impact functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 1825280-1 be used as a direct replacement for the MJS12 in existing designs?

A: Yes. Both components share identical circuit configuration (SPDT), current rating (100mA DC), voltage rating (12V DC), mounting type (through-hole), termination style (PC pin), actuator dimensions (2.00mm length and travel), and electrical life specification (10,000 cycles). PCB footprints and electrical performance are equivalent.

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

A: The MJS12 specifies 225gf operating force while the 1825280-1 specifies 250gf. This 25gf difference represents approximately 11% variance and remains within standard mechanical tolerance for slide switch actuators. Both values fall within the typical range for standard actuator applications and do not affect functional compatibility.

Q: Why is the MJS12 classified as obsolete?

A: Obsolete status indicates the MJS12 is no longer manufactured or supported by APEM Inc. The 1825280-1 provides continued access to equivalent switching functionality through an active product line.

Q: Are there packaging differences between the MJS12 and 1825280-1?

A: The MJS12 is supplied in standard packaging, while the 1825280-1 is supplied in bulk packaging. Both are through-hole mounted components with PC pin termination suitable for standard PCB assembly processes.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the MJS12 and 1825280-1 are ROHS3 compliant and REACH unaffected. ECCN and HTSUS classifications are identical, ensuring equivalent regulatory treatment for procurement and export purposes.

Q: What is the contact timing specification for the 1825280-1?

A: The 1825280-1 features shorting contact timing (MBB - Make Before Break), which ensures continuity is maintained during the switching transition between poles. This characteristic is suitable for On-On switching applications.