MPA103C04 Equivalent & Substitute Parts

Part Overview

The MPA103C04 is a pushbutton switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a SPST-NO (Single Pole Single Throw - Normally Open) circuit with a 3A AC current rating at 125V. This component features a round black button actuator with rear panel mount termination via solder lug. The product is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for new production and field service applications.

Substiute Parts

MPA103C04

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1121MPA103C04 Datasheet

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MSP103C004

TE Connectivity ALCOSWITCH SwitchesIn Stock: 2953MSP103C004 Datasheet

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MSP103C04

TE Connectivity ALCOSWITCH SwitchesIn Stock: 2087MSP103C04 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPA103C04 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be SPST-NO
• Current rating must be 3A (AC)
• Voltage rating must be 125V (AC)
• Switch function must be Off-Mom

Mechanical Compatibility Requirements:

• Mounting type must be Panel Mount, Rear
• Termination style must be Solder Lug
• Panel cutout dimensions must be Circular - 6.35mm Dia
• Actuator type must accommodate the same panel interface

Environmental Compatibility Requirements:

• Operating temperature range must encompass or exceed -20°C ~ 70°C
• Moisture sensitivity level must be compatible with application requirements

The substitute parts MSP103C04 and MSP103C004 satisfy all electrical and mechanical compatibility criteria. Both parts maintain identical circuit configuration, current and voltage ratings, mounting methodology, termination style, and panel cutout dimensions. Operating temperature ranges of -20°C ~ 80°C exceed the original specification. Differences in actuator color and electrical life cycle rating do not affect functional substitution within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

MSP103C04 and MSP103C004 Selection Basis:

Both MSP103C04 and MSP103C004 are active products manufactured by TE Connectivity ALCOSWITCH Switches and provide direct functional equivalence to the obsolete MPA103C04. Selection between these two substitute parts is determined by actuator color requirements:

MSP103C04 features a red actuator cap and is appropriate for applications where color-coded operator interface is required or preferred.

MSP103C004 features a black actuator cap, matching the original MPA103C04 actuator color specification and is appropriate for applications requiring visual consistency with the original design.

Both substitute parts are RoHS3 compliant and REACH affected, indicating compliance with current environmental and regulatory standards. The extended operating temperature range of -20°C ~ 80°C provides enhanced thermal margin compared to the original specification of -20°C ~ 70°C. The reduced electrical life rating of 5,000 cycles versus the original 10,000 cycles must be evaluated against application duty cycle requirements.

Frequently Asked Questions (FAQ)

Q: Can MSP103C04 and MSP103C004 be used interchangeably with MPA103C04?

A: Both MSP103C04 and MSP103C004 are functionally equivalent to MPA103C04 across all critical electrical and mechanical parameters. The primary difference is actuator color: MSP103C04 has a red actuator, while MSP103C004 has a black actuator matching the original. Selection depends on color-coding requirements for the specific application.

Q: What are the key compatibility criteria for substitution?

A: Substitution is valid when the following parameters match: SPST-NO circuit configuration, 3A AC current rating, 125V AC voltage rating, Off-Mom switch function, Panel Mount Rear mounting type, Solder Lug termination, and Circular 6.35mm diameter panel cutout. All substitute parts meet these criteria.

Q: Does the reduced electrical life of 5,000 cycles in the substitute parts affect compatibility?

A: The electrical life rating indicates the number of switching cycles the component is rated to withstand. The original MPA103C04 is rated for 10,000 cycles, while MSP103C04 and MSP103C004 are rated for 5,000 cycles. Substitution is valid only if the application duty cycle does not exceed 5,000 cycles. Applications requiring higher cycle counts must evaluate this parameter against actual usage requirements.

Q: Are there packaging differences between the substitute parts?

A: Both MSP103C04 and MSP103C004 are supplied in bulk packaging. The original MPA103C04 packaging specification is not provided in the technical data. Bulk packaging is standard for these components and does not affect electrical or mechanical compatibility.

Q: What is the significance of the extended operating temperature range in the substitute parts?

A: The substitute parts are rated for -20°C ~ 80°C operation, compared to the original -20°C ~ 70°C specification. This extended range provides additional thermal margin and indicates the substitute parts are suitable for applications across a wider temperature envelope, including those originally specified for the MPA103C04.

Q: Are the substitute parts compliant with current regulatory standards?

A: Both MSP103C04 and MSP103C004 are RoHS3 compliant and REACH affected, indicating compliance with current environmental and regulatory requirements. The original MPA103C04 is listed as REACH unaffected, reflecting its obsolete status prior to current regulatory frameworks.