MHS121 Equivalent & Substitute Parts

Part Overview

The MHS121 is a slide switch with SPDT (Single Pole Double Throw) configuration rated for 200mA at 12V DC. This component features non-shorting contact timing, through-hole mounting, and silver-plated contacts. The MHS121 is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and procurement.

Substiute Parts

MHS121

Nidec Components CorporationIn Stock: 786MHS121 Datasheet

Current PartRFQ

CL-SB-12C-01

Nidec Components CorporationIn Stock: 12010CL-SB-12C-01 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CL-SB-12C-01 qualifies as a direct substitute for the MHS121 based on the following critical parameters:

• Circuit configuration matches: SPDT with On-On switch function
• Contact timing is identical: Non-shorting (BBM)
• Electrical ratings are compatible: 200mA at 12V DC
• Physical form factor aligns: 2.00mm actuator length, 2.00mm switch travel, through-hole mounting with PC pin termination
• Contact material and finish are equivalent: Silver-plated contacts
• Compliance certifications match: ROHS3 compliant with MSL 1 rating

The CL-SB-12C-01 is manufactured by the same supplier (Nidec Components Corporation) and maintains functional and mechanical compatibility with the obsolete MHS121.

Parameter Comparison

Engineering Selection Recommendations

The CL-SB-12C-01 is the appropriate substitute for the obsolete MHS121. Both components maintain identical electrical and mechanical specifications for the critical parameters governing SPDT slide switch operation: circuit configuration, contact timing, current and voltage ratings, actuator geometry, and termination style.

The CL-SB-12C-01 offers enhanced performance characteristics: extended operating temperature range (-40°C to 85°C versus -10°C to 70°C), increased electrical life (10,000 cycles versus 5,000 cycles), and defined operating force (153gf). These improvements provide greater design margin without compromising compatibility.

Both parts carry ROHS3 compliance and MSL 1 ratings, ensuring equivalent environmental and handling requirements. The CL-SB-12C-01 is currently in active production status with substantial inventory availability, supporting long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the CL-SB-12C-01 directly replace the MHS121 in existing designs?

A: Yes. The CL-SB-12C-01 maintains identical electrical ratings (200mA, 12V DC), circuit configuration (SPDT), contact timing (non-shorting BBM), and physical form factor (2.00mm actuator length, 2.00mm travel, through-hole PC pin termination). No circuit modifications are required.

Q: What are the key differences between these parts?

A: The CL-SB-12C-01 provides enhanced specifications: operating temperature range extends from -40°C to 85°C (versus -10°C to 70°C), electrical life increases to 10,000 cycles (versus 5,000 cycles), and operating force is specified at 153gf (versus 50-250gf range). These represent performance improvements with no compatibility impact.

Q: Are there packaging considerations for substitution?

A: The MHS121 is supplied in standard packaging, while the CL-SB-12C-01 is supplied in bulk packaging. Both use identical through-hole PC pin termination suitable for PCB assembly. Packaging format does not affect electrical or mechanical compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the MHS121 and CL-SB-12C-01 are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity ratings. Compliance certifications are equivalent.

Q: Why is the MHS121 classified as obsolete?

A: The MHS121 has been discontinued by the manufacturer. The CL-SB-12C-01 represents the active production equivalent, ensuring continued availability and supply chain support for this switch function.