MS22BSG30 Equivalent & Substitute Parts

Part Overview

The MS22BSG30 is a slide switch manufactured by NKK Switches, configured as a DPDT (Double Pole Double Throw) switch with a rated capacity of 0.4VA at 28V. This component features a through-hole, right-angle mounting configuration with gold-plated copper contacts and epoxy-sealed terminals. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

MS22BSG30

NKK SwitchesIn Stock: 1153MS22BSG30 Datasheet

Current PartRFQ

MSN22BSG30

NKK SwitchesIn Stock: 1081MSN22BSG30 Datasheet

MFR RecommendedRFQ

1201M2S3AGE2

C&KIn Stock: 11161201M2S3AGE2 Datasheet

SimilarRFQ

1201M2S3ASE2

C&KIn Stock: 9241201M2S3ASE2 Datasheet

SimilarRFQ

1201M2S4ABE2

C&KIn Stock: 9391201M2S4ABE2 Datasheet

SimilarRFQ

1201M2S4AQE2

C&KIn Stock: 10681201M2S4AQE2 Datasheet

SimilarRFQ

500SDP1S2M6QEA

E-SwitchIn Stock: 916500SDP1S2M6QEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MS22BSG30 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be DPDT
• Switch function must be On-On
• Mounting type must be Through Hole, Right Angle
• Termination style must be PC Pin
• Voltage rating must support minimum 28V DC operation
• Current rating must support minimum 0.4VA operation

Secondary Compatibility Considerations:

• Contact material and finish (copper-based with precious metal plating preferred)
• Operating temperature range (minimum -30°C to 85°C preferred)
• Switch travel distance (2.16mm to 2.20mm acceptable)
• RoHS3 compliance status

The substitute parts listed below meet the primary compatibility criteria and maintain functional equivalence within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

MSN22BSG30 (NKK Switches - Recommended Primary Substitute)

The MSN22BSG30 is the manufacturer-recommended equivalent from NKK Switches. As an active product from the same manufacturer, this part maintains design continuity and is the preferred choice for direct replacement applications. Current inventory of 978 units is available.

1201M2S4ABE2 (C&K - Electrical Performance Match)

The 1201M2S4ABE2 provides the closest electrical specification match to the MS22BSG30, with identical 0.4VA current rating and matching DC voltage rating of 28V. This C&K component operates across the full -30°C to 65°C temperature range and features gold-plated contacts. The extended electrical life rating of 100,000 cycles exceeds the original specification. ROHS3 compliance is confirmed. This part is suitable for applications where the original NKK part is unavailable.

1201M2S3AGE2 and 1201M2S4AQE2 (C&K - Higher Current Capacity)

Both C&K parts (1201M2S3AGE2 and 1201M2S4AQE2) provide higher current ratings of 6A and support 120V AC operation, offering design margin for applications requiring increased electrical capacity. These parts maintain 28V DC compatibility and ROHS3 compliance. The 1201M2S3AGE2 features gold-plated contacts, while 1201M2S4AQE2 uses silver plating.

500SDP1S2M6QEA (E-Switch - Extended Temperature Range)

The E-Switch 500SDP1S2M6QEA maintains the full -30°C to 85°C operating temperature range of the original MS22BSG30, matching the thermal specification exactly. This part provides 5A current capacity and 120V AC support with 28V DC compatibility. ROHS3 compliance is confirmed. This option is preferred for applications operating at the upper temperature limit.

1201M2S3ASE2 (C&K - Alternative with Silver Contacts)

The 1201M2S3ASE2 offers equivalent functionality with silver-plated contacts instead of gold plating. This part maintains 6A current capacity and 28V DC voltage rating with ROHS compliance. Inventory availability is 824 units.

1201M2S4ABE2 Voltage Consideration

Note that 1201M2S4ABE2 has a reduced AC voltage rating of 20V compared to the original 28V AC specification. This part is suitable only for applications operating at or below 20V AC.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher current rating than the MS22BSG30?

A: Yes. The substitute parts with 5A or 6A current ratings are electrically compatible with the 0.4VA original specification. Higher current capacity provides design margin and does not create incompatibility. The circuit configuration, voltage rating, and mounting characteristics remain the controlling factors for substitution eligibility.

Q: What is the difference between gold and silver contact finishes?

A: Both gold-plated and silver-plated contacts are acceptable for this application. Gold plating provides superior corrosion resistance and is preferred for low-current, low-voltage applications. Silver plating offers lower contact resistance and is suitable for higher-current applications. The MS22BSG30 uses gold plating; substitute parts with either finish are functionally equivalent within the specified electrical parameters.

Q: Does the 20V AC rating of 1201M2S4ABE2 make it unsuitable?

A: The 1201M2S4ABE2 has a 20V AC rating, which is below the original 28V AC specification. This part is suitable only for applications operating at 20V AC or lower. For applications requiring the full 28V AC capability, select MSN22BSG30, 1201M2S3AGE2, 1201M2S4AQE2, or 500SDP1S2M6QEA.

Q: Which substitute part best matches the original MS22BSG30 specifications?

A: The MSN22BSG30 is the manufacturer-recommended equivalent and provides the most direct replacement. For alternative sources, the 1201M2S4ABE2 matches the electrical specifications most closely with identical 0.4VA current rating and 28V DC voltage rating.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts carry RoHS3 compliance certification, matching the original MS22BSG30 status. This ensures regulatory compliance for applications subject to RoHS requirements.

Q: What is the significance of the -30°C to 65°C versus -30°C to 85°C operating temperature range?

A: The original MS22BSG30 and E-Switch 500SDP1S2M6QEA support operation to 85°C. The C&K substitute parts are rated to 65°C maximum. For applications operating above 65°C, select either the MSN22BSG30 or 500SDP1S2M6QEA to maintain full thermal specification compliance.

Q: Can I substitute based on packaging type alone?

A: No. Packaging (tray versus bulk) is a procurement consideration only and does not affect electrical or mechanical compatibility. Substitution decisions must be based on circuit configuration, voltage and current ratings, mounting type, and termination style as specified in the Key Parameters section.