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MSS1200R Equivalent & Substitute Parts
Part Overview
The MSS1200R is a slide switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a Single Pole Double Throw (SPDT) switch with a 300mA AC current rating at 125V. This component features through-hole, right-angle mounting with PC pin termination and epoxy sealed terminals. The MSS1200R is classified as an obsolete product, necessitating identification of equivalent substitute components for ongoing design support and procurement continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Circuit Configuration | SPDT |
| Current Rating (AC) | 300mA |
| Voltage Rating (AC) | 125V |
| Contact Timing | Shorting (MBB) |
| Switch Function | On-On |
| Mounting Type | Through Hole, Right Angle |
| Termination Style | PC Pin |
| Actuator Length | 4.00mm |
| Switch Travel | 2.00mm |
| Operating Temperature Range | -20°C to 85°C |
| Mechanical Life | 15,000 Cycles |
| Electrical Life | 15,000 Cycles |
Substitute Part Grouping Explanation
Substitution of the MSS1200R is based on electrical and mechanical parameter equivalence. The primary substitute identified is the TE Connectivity ALCOSWITCH Switches part number 1825258-1. This substitution is valid because both components share identical specifications across all critical parameters: SPDT circuit configuration, 300mA AC current rating, 125V AC voltage rating, shorting contact timing (MBB), On-On switch function, through-hole right-angle mounting, PC pin termination, 4.00mm actuator length, 2.00mm switch travel, -20°C to 85°C operating temperature range, 15,000 cycle mechanical and electrical life ratings, and 600gf operating force.
The key differentiator between these parts is product status: the MSS1200R is obsolete, while the 1825258-1 is active and currently available in inventory.
Parameter Comparison
| Parameter | MSS1200R | 1825258-1 | Match |
|---|---|---|---|
| Manufacturer | TE Connectivity ALCOSWITCH Switches | TE Connectivity ALCOSWITCH Switches | Yes |
| Circuit Configuration | SPDT | SPDT | Yes |
| Current Rating (AC) | 300mA | 300mA | Yes |
| Voltage Rating (AC) | 125V | 125V | Yes |
| Contact Timing | Shorting (MBB) | Shorting (MBB) | Yes |
| Switch Function | On-On | On-On | Yes |
| Actuator Type | Standard | Standard | Yes |
| Actuator Length | 4.00mm | 4.00mm | Yes |
| Contact Material | Copper Alloy | Copper Alloy | Yes |
| Contact Finish | Silver | Silver | Yes |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Yes |
| Termination Style | PC Pin | PC Pin | Yes |
| Features | Epoxy Sealed Terminals | Epoxy Sealed Terminals | Yes |
| Operating Temperature | -20°C to 85°C | -20°C to 85°C | Yes |
| Actuator Material | Polyoxymethylene (Acetal) (POM) | Polyoxymethylene (Acetal) (POM) | Yes |
| Switch Travel | 2.00mm | 2.00mm | Yes |
| Mechanical Life | 15,000 Cycles | 15,000 Cycles | Yes |
| Electrical Life | 15,000 Cycles | 15,000 Cycles | Yes |
| Operating Force | 600gf | 600gf | Yes |
| Product Status | Obsolete | Active | No |
| ECCN | EAR99 | EAR99 | Yes |
| HTSUS | 8536.50.9050 | 8536.50.9050 | Yes |
Engineering Selection Recommendations
The 1825258-1 is the direct equivalent substitute for the obsolete MSS1200R. Both components are manufactured by TE Connectivity ALCOSWITCH Switches and maintain complete electrical and mechanical parameter equivalence. The 1825258-1 offers the advantage of active product status with confirmed inventory availability (1079 pieces in stock), whereas the MSS1200R is obsolete with limited remaining stock (978 pieces).
From a compliance perspective, the MSS1200R is RoHS non-compliant, while the 1825258-1 has RoHS status listed as not applicable. Both components share identical ECCN (EAR99) and HTSUS (8536.50.9050) classifications. The REACH status differs between the two parts: MSS1200R is REACH unaffected, while 1825258-1 is vendor undefined.
For new designs and ongoing procurement, the 1825258-1 is the appropriate selection due to its active product status and current availability.
Frequently Asked Questions (FAQ)
Q: Can the 1825258-1 directly replace the MSS1200R in existing designs?
A: Yes. The 1825258-1 is electrically and mechanically equivalent to the MSS1200R across all specified parameters, including circuit configuration, current and voltage ratings, mounting type, termination style, and operating characteristics. No design modifications are required for substitution.
Q: What is the primary reason for substituting the MSS1200R?
A: The MSS1200R is classified as an obsolete product. The 1825258-1 is the active equivalent from the same manufacturer, ensuring continued availability and supply chain continuity.
Q: Are there any differences in compliance or regulatory status between these parts?
A: Both components share identical ECCN and HTSUS classifications. The MSS1200R is RoHS non-compliant, while the 1825258-1 has RoHS status listed as not applicable. REACH status differs: MSS1200R is REACH unaffected, while 1825258-1 is vendor undefined. These differences do not affect functional equivalence.
Q: What are the critical parameters that define substitution eligibility for this switch?
A: Substitution eligibility is determined by matching: SPDT circuit configuration, 300mA AC current rating, 125V AC voltage rating, shorting contact timing (MBB), On-On switch function, through-hole right-angle mounting, PC pin termination, 4.00mm actuator length, 2.00mm switch travel, -20°C to 85°C operating temperature range, 15,000 cycle mechanical and electrical life, and 600gf operating force.
Q: Is the 1825258-1 currently available for procurement?
A: Yes. The 1825258-1 is an active product with 1079 pieces in stock as new original inventory.
Q: Are there any packaging differences between the MSS1200R and 1825258-1?
A: Packaging information is not provided in the component specifications for either part.
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