Bulgin MP0034/3 Equivalent & Substitute Parts

Part Overview

The Bulgin MP0034/3 is an anti-vandal pushbutton switch with DPST-NO/NC circuit configuration, rated for 5A at 250V AC and 2A at 28V DC. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The part features a rear panel mount configuration with a domed silver button actuator and solder lug termination.

Substiute Parts

MP0034/3

BulginIn Stock: 1189MP0034/3 Datasheet

Current PartRFQ

MP0031/3

BulginIn Stock: 1153MP0031/3 Datasheet

MFR RecommendedRFQ

PV4DS2B0SSG

E-SwitchIn Stock: 991PV4DS2B0SSG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP0034/3 is determined by the following critical parameters: circuit configuration (DPST-NO/NC), current and voltage ratings, anti-vandal construction, panel mount capability, solder lug termination, and operating temperature range. The substitute parts identified below maintain compatibility with these core electrical and mechanical specifications.

Primary Substitution Criteria:

• Circuit type: DPST-NO/NC or equivalent switching capability
• Current rating: minimum 5A AC / 2A DC
• Voltage rating: minimum 250V AC / 28V DC
• Mounting: Panel mount configuration
• Termination: Solder lug
• Actuator: Round button, domed profile
• Temperature range: -20°C to 70°C minimum

Parameter Comparison

Engineering Selection Recommendations

Bulgin MP0031/3 is the primary recommended substitute. This part maintains identical electrical specifications (5A AC at 250V, 2A DC at 28V), circuit configuration (DPST-NO/NC), and operating temperature range (-20°C to 70°C). The MP0031/3 is active in production, ROHS3 compliant, and offers superior mechanical life (1,000,000 cycles versus 250,000 cycles). The primary design difference is front panel mount orientation versus rear mount on the original part, and a marginally larger panel cutout diameter (19.20mm versus 18.90mm). Both parts feature identical termination style and actuator profile.

E-Switch PV4DS2B0SSG is a secondary alternative for applications where circuit configuration flexibility exists. This part operates at 2A DC and 24V DC, meeting the lower DC specification of the MP0034/3. However, the PV4DS2B0SSG uses SPDT circuit configuration rather than DPST-NO/NC, operates at a reduced temperature maximum (55°C versus 70°C), and does not support AC operation. This substitute is suitable only for DC-only applications with SPDT switching requirements.

All identified substitutes carry ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the original part.

Frequently Asked Questions (FAQ)

Q: Can the Bulgin MP0031/3 directly replace the MP0034/3 in existing designs?

A: The MP0031/3 provides electrical and functional equivalence with one mechanical consideration: it is configured for front panel mount rather than rear panel mount. The panel cutout diameter increases from 18.90mm to 19.20mm. If the existing panel mounting hole is sized for rear mount at 18.90mm, mechanical modification is required. Electrical performance, current/voltage ratings, and circuit configuration are identical.

Q: What are the limitations of the E-Switch PV4DS2B0SSG as a substitute?

A: The PV4DS2B0SSG is limited to DC operation at 24V maximum and does not support AC operation. The circuit configuration is SPDT rather than DPST-NO/NC, reducing switching capability. The maximum operating temperature is 55°C, which is 15°C lower than the MP0034/3. This substitute is applicable only to DC-only systems operating below 55°C with SPDT switching requirements.

Q: Are there packaging differences between the main part and substitutes?

A: The MP0034/3 is supplied in standard packaging (not specified). The MP0031/3 is supplied in trays. The PV4DS2B0SSG packaging is not specified. Packaging differences do not affect electrical or mechanical compatibility.

Q: What is the significance of the panel cutout diameter differences?

A: The MP0034/3 requires an 18.90mm circular cutout, the MP0031/3 requires 19.20mm, and the PV4DS2B0SSG requires 19.00mm. If substituting into an existing panel with a fixed cutout, the larger diameter of the MP0031/3 may not fit. Conversely, the smaller original cutout will not accommodate the MP0031/3 without panel modification.

Q: Why does the MP0031/3 have superior mechanical life?

A: The MP0031/3 specifies 1,000,000 mechanical cycles versus 250,000 cycles for the MP0034/3. This represents a design improvement in the active production version and does not indicate incompatibility; it indicates enhanced durability in the substitute part.