MB2011SS1G01-CB Equivalent & Substitute Parts

Part Overview

The MB2011SS1G01-CB is an SPDT pushbutton switch manufactured by NKK Switches, rated for 0.4VA at 28V AC/DC with panel mount rear termination. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The switch features epoxy sealed solder lug terminals, a circular 6.50mm panel cutout, and operates across -30°C to 85°C with 100,000 mechanical cycles and 50,000 electrical cycles.

Substiute Parts

MB2011SS1G01-CB

NKK SwitchesIn Stock: 872MB2011SS1G01-CB Datasheet

Current PartRFQ

MB2411E1G01-FA

NKK SwitchesIn Stock: 1167MB2411E1G01-FA Datasheet

SimilarRFQ

1977737-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11241977737-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011SS1G01-CB is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Mom (momentary operation)
• Mounting type: Panel Mount, Rear
• Termination style: Solder Lug
• Panel cutout dimensions: Circular 6.50mm diameter
• Voltage rating: Minimum 28V AC/DC
• Current rating: Minimum 0.4VA

Identified Substitute Parts:

MB2411E1G01-FA (NKK Switches MB2400 Series) satisfies all primary compatibility criteria. This part maintains identical circuit configuration, switch function, mounting type, termination style, and panel cutout dimensions. Voltage and current ratings meet or exceed the original specification (0.4VA at 28V AC/DC). The substitute demonstrates enhanced mechanical life (200,000 cycles versus 100,000 cycles) and electrical life (100,000 cycles versus 50,000 cycles). Both parts are ROHS3 compliant and carry MSL 1 rating.

1977737-2 (TE Connectivity ALCOSWITCH Switches Blue Series) meets core electrical and mechanical compatibility requirements. This part maintains SPDT circuit configuration, On-Mom switch function, panel mount rear mounting, and solder lug termination. The DC voltage rating of 30V exceeds the 28V requirement. Current rating is specified as 60mA DC. The part is active status, ROHS3 compliant, and carries MSL 1 rating. Panel cutout dimensions are not specified in available documentation.

Parameter Comparison

Engineering Selection Recommendations

MB2411E1G01-FA is the primary recommended substitute. This NKK Switches component maintains full electrical and mechanical compatibility with the MB2011SS1G01-CB across all specified parameters. The identical panel cutout dimension (6.50mm circular) ensures direct mechanical fit without panel modification. Enhanced mechanical and electrical life ratings provide improved reliability margins. Both parts carry ROHS3 compliance and unlimited MSL 1 rating, supporting equivalent environmental performance. The obsolete product status of both components indicates they represent the same generation technology platform.

1977737-2 serves as a secondary alternative for applications where DC-only operation is acceptable. The TE Connectivity part maintains core SPDT momentary functionality and panel mount rear configuration with solder lug termination. The 30V DC rating provides margin above the 28V requirement. The active product status indicates ongoing manufacturer support and availability. However, the unspecified panel cutout dimension requires physical verification before implementation. The 60mA DC current rating is lower than the 0.4VA specification and applies only to DC operation, limiting applicability to AC circuits or mixed AC/DC applications.

Frequently Asked Questions (FAQ)

Q: Can MB2411E1G01-FA directly replace MB2011SS1G01-CB without panel modification?

A: Yes. Both parts specify identical circular 6.50mm panel cutout dimensions and panel mount rear configuration. Direct mechanical substitution is supported without panel rework.

Q: What is the primary difference between MB2411E1G01-FA and the original MB2011SS1G01-CB?

A: The MB2411E1G01-FA belongs to the NKK Switches MB2400 series versus the MB2000 series of the original part. The substitute provides doubled mechanical life (200,000 versus 100,000 cycles) and doubled electrical life (100,000 versus 50,000 cycles) while maintaining identical electrical ratings and physical dimensions.

Q: Is 1977737-2 suitable for AC applications?

A: No. The 1977737-2 current rating is specified as 60mA DC only. The original MB2011SS1G01-CB supports 0.4VA at both AC and DC. The TE Connectivity part is limited to DC operation and is not rated for AC circuits.

Q: What is the significance of the obsolete product status for MB2411E1G01-FA?

A: Both the original MB2011SS1G01-CB and the recommended substitute MB2411E1G01-FA carry obsolete status, indicating they represent legacy product lines. However, documented inventory of 1099 pieces is available. For new designs requiring long-term supply assurance, the active-status 1977737-2 may provide extended availability, subject to application voltage and current requirements.

Q: Are all three parts ROHS3 compliant?

A: Yes. MB2011SS1G01-CB, MB2411E1G01-FA, and 1977737-2 all carry ROHS3 compliance certification and MSL 1 (unlimited) moisture sensitivity rating, supporting equivalent environmental and regulatory requirements.

Q: What is the operating temperature difference between substitutes?

A: MB2011SS1G01-CB and MB2411E1G01-FA both operate across -30°C to 85°C. The 1977737-2 operates across -20°C to 80°C, representing a narrower temperature range. Applications requiring operation below -20°C or above 80°C must use MB2411E1G01-FA or the original part.