MSP103C Equivalent & Substitute Parts

Part Overview

The MSP103C is a pushbutton switch manufactured by TE Connectivity ALCOSWITCH Switches, classified as a SPST-NO (Single Pole Single Throw - Normally Open) momentary contact switch. This component is rated for 3A at 125V AC and features a red plunger actuator with solder lug termination for panel-mount rear installation. The MSP103C is currently listed as obsolete, necessitating identification of equivalent substitute components to maintain design continuity and ensure procurement availability for new production runs or field replacements.

Substiute Parts

MSP103C

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1159MSP103C Datasheet

Current PartRFQ

MSP103C04

TE Connectivity ALCOSWITCH SwitchesIn Stock: 2087MSP103C04 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete MSP103C is based on electrical and mechanical parameter equivalence within the MSP3 series. The substitute part MSP103C04 maintains identical electrical specifications including SPST-NO circuit configuration, 3A AC current rating, and 125V AC voltage rating. Mechanical compatibility is preserved through matching mounting type (Panel Mount, Rear), panel cutout dimensions (Circular - 6.35mm Dia), actuator type (Plunger for Cap), actuator color (Red), and termination style (Solder Lug). Operating temperature range (-20°C ~ 80°C) and electrical life (5,000 Cycles) are identical. The substitute part differs in product status (Active versus Obsolete) and regulatory compliance (ROHS3 Compliant and REACH Affected versus RoHS non-compliant and REACH Unaffected), with packaging available in Bulk format.

Parameter Comparison

Engineering Selection Recommendations

The MSP103C04 is the direct substitute for the obsolete MSP103C. All electrical and mechanical parameters are identical, ensuring functional equivalence in circuit applications. The MSP103C04 is currently in active production status with confirmed inventory availability (2031 Pcs New Original In Stock), providing supply chain continuity for new designs and replacement applications.

The MSP103C04 offers improved regulatory compliance through ROHS3 certification, meeting current environmental and hazardous substance restrictions applicable to electronic components in most markets. The REACH Affected status of the MSP103C04 indicates compliance with European chemical safety regulations, whereas the original MSP103C carries REACH Unaffected status reflecting its obsolete classification.

Selection of the MSP103C04 is appropriate for all applications previously specified for the MSP103C where regulatory compliance with current standards is required. The substitute part maintains identical electrical performance (3A at 125V AC, SPST-NO configuration, 5,000 cycle electrical life) and mechanical compatibility (panel mount rear installation, 6.35mm circular cutout, solder lug termination).

Frequently Asked Questions (FAQ)

Q: Can the MSP103C04 be used as a direct replacement for the MSP103C in existing designs?

A: Yes. The MSP103C04 provides complete electrical and mechanical equivalence. All circuit parameters, mounting specifications, and actuator characteristics are identical. The substitute part operates within the same voltage and current ratings and maintains the same panel cutout dimensions for installation compatibility.

Q: What is the primary difference between the MSP103C and MSP103C04?

A: The primary differences are product status and regulatory compliance. The MSP103C is obsolete, while the MSP103C04 is in active production. The MSP103C04 is ROHS3 compliant and REACH Affected, meeting current environmental regulations, whereas the MSP103C is RoHS non-compliant and REACH Unaffected.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are rated for 3A AC at 125V, feature SPST-NO momentary contact operation, and provide 5,000 cycles of electrical life. Operating temperature range (-20°C ~ 80°C) is identical for both components.

Q: What packaging options are available for the substitute part?

A: The MSP103C04 is available in Bulk packaging format. The original MSP103C was supplied in standard packaging. Bulk packaging is suitable for high-volume production applications and component assembly operations.

Q: Is the MSP103C04 compatible with the same panel cutout dimensions as the MSP103C?

A: Yes. Both parts require a circular panel cutout of 6.35mm diameter. The rear panel mount configuration and solder lug termination are identical, ensuring mechanical interchangeability in existing panel assemblies.

Q: Why should I transition from MSP103C to MSP103C04?

A: Transition is necessary because the MSP103C is obsolete and no longer manufactured. The MSP103C04 provides continued availability with active production status. Additionally, the MSP103C04 meets current RoHS3 and REACH compliance requirements, which may be mandated for new product certifications or market-specific regulations.