Equivalent & Substitute Parts for Honeywell 91MCE28-P2

Part Overview

The Honeywell 91MCE28-P2 is a snap action DPST switch rated for 6A at 120V AC with roller plunger actuation and panel mount configuration. This component is classified as Obsolete, necessitating identification of active equivalent parts to maintain system functionality and ensure continued supply chain availability. The switch features IP67 ingress protection, cable lead termination, and operates across -25°C to 85°C.

Substiute Parts

91MCE28-P2

Honeywell Sensing and Productivity SolutionsIn Stock: 85391MCE28-P2 Datasheet

Current PartRFQ

NGCMA20AX01P

Honeywell Sensing and Productivity SolutionsIn Stock: 842NGCMA20AX01P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 91MCE28-P2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be DPST-NO/NC
• Current rating must support minimum 6A AC and 550mA DC
• Voltage ratings must meet or exceed 120V AC and 125V DC

Mechanical Compatibility Requirements:

• Actuator type must be roller plunger
• Mounting configuration must be panel mount
• Termination must be cable leads
• Ingress protection must maintain IP67 rating

Performance Requirements:

• Operating force of 1122gf
• Electrical life minimum 500,000 cycles
• Mechanical life minimum 5,000,000 cycles

Regulatory Requirements:

• RoHS compliant
• MSL rating of 1 (Unlimited)

The substitute part NGCMA20AX01P meets all mandatory electrical, mechanical, and regulatory criteria, with the distinction of active product status versus the obsolete 91MCE28-P2.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: NGCMA20AX01P

The NGCMA20AX01P is the qualified equivalent for the obsolete 91MCE28-P2 based on the following engineering criteria:

1. Electrical Equivalence: Both parts maintain identical circuit configuration (DPST-NO/NC), current ratings (6A AC / 550mA DC), and voltage ratings (120V AC / 125V DC).

2. Mechanical Equivalence: Actuator type, mounting configuration, termination style, and ingress protection rating are identical across both parts.

3. Performance Equivalence: Operating force, electrical life, and mechanical life specifications are identical.

4. Regulatory Compliance: Both parts are RoHS compliant with MSL rating of 1 (Unlimited), meeting environmental and moisture sensitivity requirements.

5. Product Status Advantage: NGCMA20AX01P holds active product status, ensuring ongoing availability and supply chain support compared to the obsolete 91MCE28-P2.

Temperature Range Consideration: The NGCMA20AX01P operates to 75°C maximum, compared to 85°C for the 91MCE28-P2. Applications requiring operation above 75°C must evaluate thermal requirements against this specification difference.

Frequently Asked Questions (FAQ)

Q: Can NGCMA20AX01P directly replace 91MCE28-P2 in existing designs?

A: Yes. The NGCMA20AX01P meets all electrical, mechanical, and performance specifications of the 91MCE28-P2. The primary consideration is the operating temperature maximum of 75°C versus 85°C for the original part. Applications operating within -25°C to 75°C require no design modification.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active product status indicates ongoing manufacturing, quality assurance, and supply chain support. The NGCMA20AX01P ensures long-term component availability and eliminates obsolescence risk associated with the 91MCE28-P2.

Q: Are there packaging differences between these parts?

A: The 91MCE28-P2 is specified with "-" packaging notation, while NGCMA20AX01P is supplied in Bulk packaging. Packaging differences do not affect electrical or mechanical compatibility.

Q: What parameters must remain identical for substitution to be valid?

A: Circuit configuration (DPST-NO/NC), current and voltage ratings, actuator type (roller plunger), mounting type (panel mount), termination style (cable leads), and ingress protection (IP67) must be identical. Operating force and life cycle ratings must also match.

Q: Are there any mechanical dimension differences?

A: Pretravel, differential travel, and overtravel specifications differ between the parts. The 91MCE28-P2 has pretravel of 0.071" (1.8mm), while NGCMA20AX01P has pretravel of 0.083" (2.1mm). These differences reflect design variations within the same functional class but should be evaluated for specific mechanical integration requirements.

Q: What is the release force specification for NGCMA20AX01P?

A: The NGCMA20AX01P specifies a release force of 306gf. The 91MCE28-P2 does not provide a release force specification in the available data.