Bulgin MP0025/3 Equivalent & Substitute Parts

Part Overview

The Bulgin MP0025/3 is a DPST pushbutton switch rated for 5A at 250V AC with anti-vandal panel mount construction. This component features a rear-mounted configuration with solder lug termination and domed silver actuator. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance, repair, and new design applications where this switch type is required.

Substiute Parts

MP0025/3

BulginIn Stock: 1014MP0025/3 Datasheet

Current PartRFQ

MP0031/3

BulginIn Stock: 1153MP0031/3 Datasheet

MFR RecommendedRFQ

1241.6695.1120000

SCHURTER Inc.In Stock: 11481241.6695.1120000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP0025/3 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (DPST-NO/NC capability)
• Current rating minimum 5A AC
• Voltage rating minimum 250V AC
• Anti-vandal panel mount construction
• Solder lug termination
• Domed button actuator
• Panel cutout diameter compatibility (22.60mm nominal)

Secondary Considerations:

• Mounting orientation (rear vs. front mount affects panel integration)
• Operating temperature range
• Mechanical and electrical life ratings
• Ingress protection rating

The two identified substitutes present different trade-offs in these parameters, requiring engineering evaluation based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Bulgin MP0031/3 (Primary Substitute)

The MP0031/3 is the manufacturer-recommended substitute and provides the closest functional equivalence to the MP0025/3. Both components share identical electrical ratings (5A AC at 250V, 2A DC at 28V), circuit configuration (DPST-NO/NC), switch function (On-Mom, Off-Mom), and mechanical life specifications. The MP0031/3 is currently in active production status, ensuring long-term availability and supply chain stability.

Key differences: The MP0031/3 features front-panel mounting versus rear-panel mounting on the original part, and includes IP66 ingress protection rating. The panel cutout diameter is 19.20mm compared to 22.60mm on the MP0025/3, requiring panel modification for direct mechanical substitution. Solder lug termination is retained, maintaining electrical connection compatibility.

SCHURTER 1241.6695.1120000 (Secondary Substitute)

The SCHURTER 1241.6695.1120000 offers partial functional equivalence with significant trade-offs. This component maintains 5A AC current rating and anti-vandal construction but operates at reduced voltage (125V AC versus 250V AC). The circuit configuration differs (SPDT versus DPST-NO/NC), providing only single-pole double-throw functionality instead of dual-pole capability. Electrical life is substantially higher at 200,000 cycles compared to 35,000 cycles on the original part.

Key differences: Termination uses quick-connect 0.110" (2.8mm) terminals instead of solder lugs, requiring connection method redesign. Actuator is flush-type rather than domed. Panel cutout diameter is 22.30mm, closely matching the original 22.60mm specification. Product status is obsolete. This substitute is suitable only for applications where reduced voltage rating and single-pole switching are acceptable.

Compliance and Regulatory Status

All three components maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. All are classified under HTSUS code 8536.50.9031 and ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can the MP0031/3 be used as a direct mechanical replacement for the MP0025/3?

A: The MP0031/3 provides electrical equivalence but requires panel modification. The panel cutout diameter differs (19.20mm versus 22.60mm), necessitating enlargement of the existing panel opening. Mounting orientation also differs (front versus rear), affecting panel integration geometry.

Q: What are the key electrical differences between the MP0025/3 and SCHURTER 1241.6695.1120000?

A: The SCHURTER part operates at 125V AC maximum versus 250V AC on the Bulgin part, making it unsuitable for applications requiring 250V operation. Circuit configuration differs (SPDT versus DPST-NO/NC), reducing switching capability from dual-pole to single-pole. DC voltage rating is not specified for the SCHURTER component.

Q: Are there termination compatibility issues with these substitutes?

A: The MP0031/3 retains solder lug termination, maintaining direct electrical compatibility. The SCHURTER 1241.6695.1120000 uses quick-connect 0.110" (2.8mm) terminals, requiring connection method redesign and potential wiring harness modification.

Q: Which substitute offers the longest operational life?

A: The SCHURTER 1241.6695.1120000 provides the highest mechanical life rating at 1,500,000 cycles and substantially higher electrical life at 200,000 cycles. The Bulgin MP0031/3 matches the original part specifications at 1,000,000 mechanical cycles and 35,000 electrical cycles.

Q: What is the impact of ingress protection ratings on substitution?

A: The MP0025/3 does not specify an ingress protection rating. The MP0031/3 provides IP66 (dust tight, water resistant), offering enhanced environmental protection. The SCHURTER part provides IP40 protection. Higher ingress protection may be beneficial in harsh environments but is not required for direct functional substitution.

Q: Are all substitutes currently available for procurement?

A: The MP0031/3 is in active production status with current inventory availability. The SCHURTER 1241.6695.1120000 is classified as obsolete, similar to the original MP0025/3, potentially limiting future availability.