MB2511S2G45-CF Equivalent & Substitute Parts

Part Overview

The MB2511S2G45-CF is a snap-action bushing mount pushbutton switch manufactured by NKK Switches, configured as a Standard Panel Mount, Rear termination SPDT switch with On-Momentary function. This component is classified as Obsolete product status. Due to its obsolete classification, identifying functionally equivalent substitute parts is necessary to maintain design continuity and ensure procurement availability for applications requiring SPDT pushbutton switch functionality with matching electrical and mechanical specifications.

Substiute Parts

MB2511S2G45-CF

NKK SwitchesIn Stock: 851MB2511S2G45-CF Datasheet

Current PartRFQ

MBNF15S2G45-CF

NKK SwitchesIn Stock: 809MBNF15S2G45-CF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB2511S2G45-CF is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Circuit configuration: SPDT (Single Pole, Double Throw)
• Switch function: On-Momentary operation
• Current rating: 0.4 VA (AC/DC)
• Voltage rating: 28 V AC and 28 V DC

Mechanical Compatibility Parameters:

• Mounting type: Panel Mount, Rear termination
• Actuator type: Round, Button
• Termination style: PC Pin
• Panel cutout dimensions: Circular 6.50 mm diameter

Environmental & Lifecycle Parameters:

• Operating temperature range: -30°C to +85°C
• Mechanical life: 200,000 cycles minimum
• Electrical life: 100,000 cycles minimum

The substitute part MBNF15S2G45-CF maintains equivalence across all critical electrical and mechanical parameters, ensuring direct functional replacement capability.

Parameter Comparison

Engineering Selection Recommendations

The MBNF15S2G45-CF is the direct equivalent substitute for the obsolete MB2511S2G45-CF. Selection of the MBNF15S2G45-CF is supported by the following engineering factors:

Product Status Compliance: The substitute part maintains Active product status with NKK Switches, ensuring ongoing availability, technical support, and manufacturing continuity. The main part's Obsolete classification creates procurement risk and supply chain uncertainty.

Electrical & Mechanical Equivalence: The substitute part maintains identical electrical ratings (0.4 VA at 28 V AC/DC, SPDT configuration) and mechanical specifications (Panel Mount, Rear termination, PC Pin, 6.50 mm circular cutout, round green button actuator).

Environmental & Lifecycle Equivalence: Operating temperature range (-30°C to +85°C), mechanical life (200,000 cycles), and electrical life (100,000 cycles) are identical between the main part and substitute.

Direct Replacement Capability: No circuit redesign, panel modification, or connector adaptation is required. The MBNF15S2G45-CF functions as a direct pin-for-pin and form-factor equivalent.

Frequently Asked Questions (FAQ)

Q: Can the MBNF15S2G45-CF directly replace the MB2511S2G45-CF without any modifications?

A: Yes. The MBNF15S2G45-CF is a direct equivalent substitute. All electrical parameters (SPDT, 0.4 VA, 28 V AC/DC), mechanical specifications (Panel Mount, Rear, PC Pin termination, 6.50 mm circular cutout), and environmental ratings (-30°C to +85°C, 200,000 mechanical cycles, 100,000 electrical cycles) are identical. No circuit redesign or panel modification is required.

Q: Why is the MB2511S2G45-CF classified as Obsolete?

A: The MB2511S2G45-CF has reached end-of-life status with NKK Switches. Obsolete classification indicates that the manufacturer no longer actively produces or supports this part number. The MBNF15S2G45-CF is the Active equivalent that maintains all functional specifications.

Q: What is the difference between the MB2511S2G45-CF and MBNF15S2G45-CF?

A: The primary difference is product status: MB2511S2G45-CF is Obsolete, while MBNF15S2G45-CF is Active. All electrical, mechanical, and environmental specifications are identical. The part number change reflects NKK Switches' product line evolution and nomenclature updates.

Q: Are there any packaging differences between these parts?

A: The MB2511S2G45-CF is packaged in standard format, while the MBNF15S2G45-CF is supplied in Bulk packaging. Both configurations contain the same component. Bulk packaging is standard for active production parts and does not affect component functionality or specifications.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by equivalence across: circuit configuration (SPDT), switch function (On-Momentary), current rating (0.4 VA AC/DC), voltage rating (28 V AC/DC), mounting type (Panel Mount, Rear), termination style (PC Pin), panel cutout dimensions (6.50 mm circular), actuator type (round button), and environmental operating range (-30°C to +85°C). All these parameters must match for direct substitution.

Q: Is the MBNF15S2G45-CF suitable for the same applications as the MB2511S2G45-CF?

A: Yes. The MBNF15S2G45-CF maintains identical electrical ratings, mechanical specifications, and environmental performance. It is suitable for all applications previously served by the MB2511S2G45-CF, including panel-mounted SPDT momentary switching applications operating at 28 V AC/DC with 0.4 VA load requirements.