SRM-10 Equivalent & Substitute Parts

Part Overview

The SRM-10 is a surface mount rotary DIP switch with BCD circuit configuration, rated for 100mA at 5VDC. Manufactured by E-Switch, this component is designed for tool actuator applications requiring 10-position selection capability. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new production runs where legacy component replacement is necessary.

Substiute Parts

SRM-10

E-SwitchIn Stock: 991SRM-10 Datasheet

Current PartRFQ

SC-2010B

Nidec Components CorporationIn Stock: 1279SC-2010B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SC-2010B from Nidec Components Corporation qualifies as a direct substitute for the SRM-10 based on the following critical parameters:

• Circuit Configuration: Both parts implement BCD logic, ensuring identical encoding output
• Position Count: Both provide 10-position selection capability
• Electrical Ratings: Identical 100mA current and 5VDC voltage specifications
• Mechanical Interface: Matching 0.100" (2.54mm) pitch, surface mount configuration, and gull wing termination enable direct PCB compatibility
• Body Material: Both use Polyphenylene Sulfide (PPS) construction
• Contact Finish: Gold plating on both parts ensures equivalent contact reliability
• Washability: Both components support cleaning processes
• Compliance: Both meet ROHS3 and REACH requirements

The SC-2010B represents an active product with enhanced specifications in operating temperature range and electrical life cycle rating, making it suitable for direct replacement in applications where the SRM-10 is no longer available.

Parameter Comparison

Engineering Selection Recommendations

The SC-2010B is the recommended substitute for the SRM-10 based on functional equivalence and active product status. Both components meet ROHS3 and REACH compliance requirements, ensuring regulatory alignment for new and legacy applications.

The SC-2010B offers improved operating temperature range (-40°C to 85°C versus -10°C to 60°C) and extended electrical life (20,000 steps versus 15,000 cycles), providing enhanced performance margins for demanding environments. The reduced height above board (4.00mm versus 5.10mm) may require PCB layout verification in space-constrained designs, though the identical pitch and termination style ensure electrical compatibility.

Both components utilize gold-plated contacts and PPS body material, maintaining equivalent reliability characteristics. The SC-2010B's active product status ensures long-term availability and supply chain continuity compared to the obsolete SRM-10.

Frequently Asked Questions (FAQ)

Q: Can the SC-2010B be used as a direct replacement for the SRM-10 on existing PCBs?

A: Yes. Both components share identical pitch (0.100"), termination style (gull wing), and mounting type (surface mount). The SC-2010B's reduced height (4.00mm versus 5.10mm) is mechanically compatible with standard surface mount assembly processes. PCB layout verification is recommended for applications with minimal clearance above the component.

Q: Are the BCD encoding outputs identical between these parts?

A: Yes. Both the SRM-10 and SC-2010B implement 10-position BCD circuit configuration, producing identical logic outputs for each switch position.

Q: What are the key differences between these components?

A: The primary differences are product status (obsolete versus active), operating temperature range (SRM-10: -10°C to 60°C; SC-2010B: -40°C to 85°C), electrical life rating (SRM-10: 15,000 cycles; SC-2010B: 20,000 steps), and component height (SRM-10: 5.10mm; SC-2010B: 4.00mm). Contact material differs (glass fabric epoxy resin versus copper alloy), though both feature gold plating.

Q: Do both components meet current environmental and compliance standards?

A: Yes. Both the SRM-10 and SC-2010B are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: Is the SC-2010B available in the same packaging as the SRM-10?

A: The SRM-10 is packaged in standard format, while the SC-2010B is supplied in bulk packaging. Both are suitable for production assembly; packaging selection depends on order quantity and inventory management requirements.