MPD031 Equivalent & Substitute Parts

Part Overview

The MPD031 is an anti-vandal pushbutton switch manufactured by Bulgin, configured as a DPDT (Double Pole Double Throw) momentary contact switch rated for 3A at 125V AC. This component is designed for panel-mount front installation with a circular 19.20mm diameter cutout. 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

MPD031

BulginIn Stock: 1066MPD031 Datasheet

Current PartRFQ

AV19820KMZQ

APEM Inc.In Stock: 1115AV19820KMZQ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPD031 is determined by the following critical parameters that must remain consistent or exceed the original specification:

Mandatory Matching Parameters:

• Circuit configuration: DPDT
• Switch function: On-Mom (momentary contact)
• Voltage rating: 125V AC minimum
• Current rating: 3A AC minimum
• Mounting type: Panel Mount, Front
• Panel cutout diameter: 19.20mm (circular)
• Termination style: Solder Lug
• Actuator type: Round button configuration

Allowable Improvements:

• Current rating may exceed 3A (higher current capability is acceptable)
• Operating temperature range may be wider
• Electrical life may exceed 10,000 cycles
• Ingress protection rating may be added
• Mechanical life specifications may be enhanced

The substitute part AV19820KMZQ manufactured by APEM Inc. meets all mandatory parameters while providing enhanced electrical life (60,000 cycles versus 10,000 cycles) and improved ingress protection (IP54 rating).

Parameter Comparison

Engineering Selection Recommendations

The AV19820KMZQ from APEM Inc. is a direct functional substitute for the obsolete MPD031. Both components maintain identical electrical specifications for circuit configuration, voltage rating, and mounting geometry. The substitute part provides enhanced performance characteristics including doubled current capacity (6A versus 3A), extended electrical life (60,000 versus 10,000 cycles), and improved environmental protection (IP54 rating). Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for industrial and commercial applications.

The identical panel cutout diameter (19.20mm) and solder lug termination enable direct mechanical and electrical integration into existing designs without modification to PCB layouts or panel mounting hardware.

Frequently Asked Questions (FAQ)

Q: Can the AV19820KMZQ replace the MPD031 in existing applications?

A: Yes. The AV19820KMZQ maintains identical circuit configuration (DPDT), voltage rating (125V AC), mounting type (panel mount, front), panel cutout diameter (19.20mm), and termination style (solder lug). The substitute part exceeds the original current rating and electrical life specifications.

Q: What is the difference between the flush and domed actuator types?

A: The MPD031 features a flush button actuator, while the AV19820KMZQ features a domed button actuator. Both are round button configurations suitable for panel-mount applications. The domed design may provide slightly different tactile feedback and aesthetic appearance but maintains functional compatibility.

Q: Does the IP54 rating on the substitute part affect compatibility?

A: No. The IP54 ingress protection rating on the AV19820KMZQ provides enhanced environmental protection compared to the unspecified rating on the MPD031. This improvement does not affect electrical or mechanical compatibility and is beneficial for applications exposed to dust or moisture.

Q: Are both parts RoHS compliant?

A: Yes. Both the MPD031 and AV19820KMZQ are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components in industrial and commercial markets.

Q: What is the significance of the extended operating temperature range on the substitute part?

A: The AV19820KMZQ operates from -30°C to 85°C, compared to the MPD031 range of -20°C to 70°C. This extended range provides greater flexibility for applications in extreme temperature environments without requiring alternative component selection.