MB2011SS4G01 Equivalent & Substitute Parts

Part Overview

The MB2011SS4G01 is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with a 0.4VA rating at 28V. This component is designed for panel mount, rear installation applications with a plunger actuator and solder lug termination. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications.

Substiute Parts

MB2011SS4G01

NKK SwitchesIn Stock: 1266MB2011SS4G01 Datasheet

Current PartRFQ

MBN15SS4G01

NKK SwitchesIn Stock: 1113MBN15SS4G01 Datasheet

MFR RecommendedRFQ

1977737-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11241977737-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MB2011SS4G01 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (SPDT)
• Switch function (On-Mom momentary operation)
• Mounting type (Panel Mount, Rear)
• Actuator type (Plunger for Cap)
• Termination style (Solder Lug)
• Voltage and current ratings within acceptable operating ranges

Secondary Compatibility Criteria:

• Operating temperature range compatibility
• Electrical life rating (minimum 50,000 cycles)
• RoHS compliance status
• Panel cutout dimensions (where applicable)

The substitute parts identified below meet the primary compatibility criteria and maintain functional equivalence for standard panel-mounted pushbutton switch applications.

Parameter Comparison

Engineering Selection Recommendations

MBN15SS4G01 (NKK Switches - Manufacturer Recommended)

This part is designated as the manufacturer-recommended substitute. As an active product from NKK Switches, it provides direct lineage from the obsolete MB2011SS4G01. The recommendation is based on manufacturer validation and product continuity within the same manufacturer ecosystem. Limited specification data is available for this part; verification of electrical and mechanical parameters against your application requirements is necessary before final selection.

1977737-2 (TE Connectivity ALCOSWITCH - Similar Alternative)

This part provides functional equivalence as an SPDT momentary pushbutton switch with panel mount, rear configuration and solder lug termination. The 60mA DC current rating and 30V DC voltage rating are compatible with the original 0.4VA 28V specification. The operating temperature range (-20°C ~ 80°C) is slightly narrower than the original (-30°C ~ 85°C), which may be a consideration for extreme temperature applications. Both parts maintain ROHS3 compliance and 50,000-cycle electrical life ratings. This part is currently active and available in inventory.

Frequently Asked Questions (FAQ)

Q: Can MBN15SS4G01 be used as a direct replacement for MB2011SS4G01?

A: MBN15SS4G01 is the manufacturer-recommended substitute from NKK Switches. However, complete electrical and mechanical specifications for MBN15SS4G01 are not fully documented in available data. Verification against your specific application parameters is required before implementation.

Q: What are the key differences between 1977737-2 and the original MB2011SS4G01?

A: Both parts share SPDT circuitry, momentary operation, panel mount rear configuration, plunger actuator, and solder lug termination. The 1977737-2 has a lower current rating (60mA DC versus 0.4VA AC/DC) and a narrower operating temperature range (-20°C ~ 80°C versus -30°C ~ 85°C). The voltage rating is slightly higher (30V DC versus 28V DC/AC).

Q: Are both substitute parts RoHS compliant?

A: Yes. Both MBN15SS4G01 and 1977737-2 are ROHS3 compliant, matching the compliance status of the original MB2011SS4G01.

Q: What is the panel cutout dimension for the substitute parts?

A: The original MB2011SS4G01 requires a circular 6.50mm diameter panel cutout. Panel cutout dimensions for MBN15SS4G01 are not specified in available data. The 1977737-2 panel cutout dimensions are also not specified. Physical verification or manufacturer consultation is recommended to confirm mechanical compatibility with existing panel installations.

Q: Which substitute should I select for new designs?

A: For new designs, 1977737-2 is the preferred choice based on complete specification availability, active product status, and documented electrical parameters. For legacy system repairs or direct replacement scenarios, MBN15SS4G01 is the manufacturer-recommended option, subject to specification verification.

Q: Are there any temperature-related limitations with the substitute parts?

A: The 1977737-2 operates within -20°C ~ 80°C, which is narrower than the original -30°C ~ 85°C range. If your application requires operation below -20°C or above 80°C, this part may not be suitable. MBN15SS4G01 temperature specifications are not documented.