Bulgin MP0025/2 Equivalent & Substitute Parts

Part Overview

The Bulgin MP0025/2 is a DPST pushbutton switch rated for 5A at 250V AC and 2A at 28V DC, designed for anti-vandal panel mount applications with rear mounting configuration. The product is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing maintenance, repair, and system continuity in applications where this component was originally specified.

Substiute Parts

MP0025/2

BulginIn Stock: 1107MP0025/2 Datasheet

Current PartRFQ

MP0031/2

BulginIn Stock: 1153MP0031/2 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 MP0025/2 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (DPST-NO/NC capability required)
• Current rating minimum 5A AC
• Voltage rating minimum 250V AC
• Switch function (On-Mom, Off-Mom)
• Anti-vandal type classification
• Round button actuator
• Solder lug termination

Secondary Considerations:

• Panel mount configuration (rear vs. front mounting affects mechanical fit)
• Panel cutout diameter (22.60mm nominal)
• Operating temperature range (-20°C to 70°C minimum)
• Mechanical life rating (1,000,000 cycles minimum)
• RoHS3 compliance

The identified substitute parts are grouped as follows:

Group 1 - Direct Functional Equivalent (Preferred): Bulgin MP0031/2 maintains identical electrical specifications (DPST-NO/NC, 5A/250V AC, 2A/28V DC) with enhanced ingress protection (IP66) and active product status. Primary difference is front panel mount configuration versus rear mount on the original part.

Group 2 - Partial Electrical Compatibility (Limited Substitution): SCHURTER Inc. 1241.6695.1120000 provides anti-vandal pushbutton functionality but with reduced electrical ratings (SPDT circuit, 5A/125V AC only) and different termination (Quick Connect vs. Solder Lug). This part is suitable only for applications where the lower voltage and single-pole-double-throw configuration are acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended): Bulgin MP0031/2 is the primary substitute for MP0025/2. Both parts are manufactured by Bulgin, maintain identical electrical specifications (DPST-NO/NC, 5A/250V AC, 2A/28V DC), and share the same switch function characteristics. The MP0031/2 offers the advantage of active product status, ensuring continued availability and supply chain stability. The primary mechanical difference is front panel mount versus rear mount configuration; panel cutout diameter differs (19.20mm vs. 22.60mm), requiring mechanical redesign of the mounting interface. Enhanced IP66 ingress protection on the MP0031/2 provides superior environmental sealing compared to the original part.

For Voltage-Reduced Applications Only: SCHURTER Inc. 1241.6695.1120000 may be considered only in applications where the reduced voltage rating (125V AC maximum) and single-pole-double-throw circuit configuration are functionally acceptable. This part is also obsolete, limiting its long-term availability. The Quick Connect termination requires rewiring compared to the solder lug configuration of the original part. This substitute is not recommended for direct replacement in applications requiring the full 250V AC rating or dual-pole switching capability.

Compliance Considerations: Both substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original MP0025/2. All three parts are classified under HTSUS code 8536.50.9031 and ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can MP0031/2 be used as a direct replacement for MP0025/2? A: MP0031/2 provides electrical equivalence (DPST-NO/NC, 5A/250V AC, 2A/28V DC) but differs in mounting configuration (front vs. rear) and panel cutout diameter (19.20mm vs. 22.60mm). Mechanical redesign of the panel mounting interface is required. Electrical functionality is fully compatible.

Q: What is the key difference between MP0025/2 and MP0031/2? A: The primary differences are mounting orientation (rear vs. front panel mount), panel cutout diameter (22.60mm vs. 19.20mm), ingress protection rating (unspecified vs. IP66), and product status (obsolete vs. active). Electrical ratings and switch function are identical.

Q: Why is SCHURTER 1241.6695.1120000 listed as a substitute if it has lower voltage rating? A: This part is listed as a substitute option for applications where the reduced voltage rating (125V AC) and SPDT circuit configuration are acceptable. It is not suitable for applications requiring the full 250V AC rating or dual-pole switching. This part is also obsolete.

Q: What are the termination differences between these parts? A: MP0025/2 and MP0031/2 both use solder lug termination. SCHURTER 1241.6695.1120000 uses Quick Connect 0.110" (2.8mm) termination, requiring different wiring connections and potentially different PCB or connector design.

Q: Are all three parts RoHS3 compliant? A: Yes, all three parts (MP0025/2, MP0031/2, and 1241.6695.1120000) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the panel cutout diameter requirement for each part? A: MP0025/2 requires 22.60mm circular cutout, MP0031/2 requires 19.20mm circular cutout, and 1241.6695.1120000 requires 22.30mm circular cutout. Panel redesign is necessary if substituting between parts with different cutout diameters.

Q: Which substitute part has the longest mechanical life? A: SCHURTER 1241.6695.1120000 has the highest mechanical life rating at 1,500,000 cycles, compared to 1,000,000 cycles for both Bulgin parts. However, this advantage is offset by lower electrical ratings and obsolete product status.

Q: Can these parts be used in high-temperature applications? A: MP0025/2 and MP0031/2 are rated for -20°C to 70°C operating temperature. SCHURTER 1241.6695.1120000 has a wider range (-25°C to 85°C). For applications exceeding 70°C, only the SCHURTER part is suitable, subject to voltage and circuit configuration compatibility.