91MCE28-P5 Equivalent & Substitute Parts Reference

Part Overview

The 91MCE28-P5 is a snap action DPST switch manufactured by Honeywell Sensing and Productivity Solutions. This component features dual-pole, single-throw configuration with momentary on/off switching capability, rated for 6A AC at 120V and 550mA DC at 125V. The switch employs a roller plunger actuator with panel mount installation and cable lead termination, sealed to IP67 ingress protection standards.

The 91MCE28-P5 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

91MCE28-P5

Honeywell Sensing and Productivity SolutionsIn Stock: 72591MCE28-P5 Datasheet

Current PartRFQ

NGCMA50AX01P

Honeywell Sensing and Productivity SolutionsIn Stock: 1126NGCMA50AX01P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 91MCE28-P5 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

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

Mechanical & Environmental Requirements:

• Actuator type must be Roller Plunger
• Mounting type must be Panel Mount
• Termination style must be Cable Leads
• Ingress protection must be IP67 or higher
• Operating temperature range must encompass the application requirements

Regulatory & Quality Requirements:

• RoHS compliance status must be maintained
• Moisture sensitivity level must be acceptable for storage and handling

The NGCMA50AX01P meets all electrical, mechanical, and environmental criteria specified above, establishing it as a direct functional equivalent to the 91MCE28-P5.

Parameter Comparison

Engineering Selection Recommendations

NGCMA50AX01P as Primary Substitute:

The NGCMA50AX01P is qualified as a direct substitute for the 91MCE28-P5 based on complete electrical and mechanical parameter equivalence. Both components are manufactured by Honeywell Sensing and Productivity Solutions and maintain identical circuit configuration, current and voltage ratings, actuator type, mounting method, and termination style.

The NGCMA50AX01P holds active product status, ensuring ongoing availability and manufacturer support. Both components maintain RoHS compliance and equivalent moisture sensitivity levels, satisfying regulatory requirements.

Temperature Range Consideration:

The NGCMA50AX01P operates across -25°C to 75°C, compared to the 91MCE28-P5 range of -25°C to 85°C. Applications requiring operation above 75°C must evaluate whether the narrower temperature range of the substitute is acceptable for the intended use case.

Supply Chain Advantage:

The NGCMA50AX01P demonstrates higher current inventory availability (1,069 pieces versus 635 pieces for the obsolete 91MCE28-P5), supporting improved procurement timelines and supply security.

Frequently Asked Questions (FAQ)

Q: Can the NGCMA50AX01P directly replace the 91MCE28-P5 in existing designs?

A: Yes. Both components share identical electrical ratings (6A AC at 120V, 550mA DC at 125V), circuit configuration (DPST-NO/NC), actuator type (Roller Plunger), mounting method (Panel Mount), and termination style (Cable Leads). No circuit modifications are required.

Q: What is the significance of the operating temperature range difference?

A: The 91MCE28-P5 operates to 85°C maximum, while the NGCMA50AX01P operates to 75°C maximum. If your application requires sustained operation above 75°C, the substitute may not be suitable. Verify your system's maximum operating temperature requirement before selection.

Q: Are both components sealed to the same ingress protection level?

A: Yes. Both the 91MCE28-P5 and NGCMA50AX01P are rated IP67, providing equivalent dust-tight and waterproof protection.

Q: What is the difference in mechanical specifications between these parts?

A: The components differ in pretravel, differential travel, and overtravel distances. The 91MCE28-P5 has pretravel of 0.071" (1.8mm), while the NGCMA50AX01P has pretravel of 0.083" (2.1mm). These differences reflect design variations within the same functional class but do not affect electrical substitutability if mechanical actuation characteristics are compatible with your application.

Q: Why is the 91MCE28-P5 obsolete?

A: The 91MCE28-P5 is classified as obsolete by the manufacturer. The NGCMA50AX01P represents the active product line continuation, offering equivalent functionality with ongoing manufacturer support and supply availability.

Q: Are both components RoHS compliant?

A: Yes. Both the 91MCE28-P5 and NGCMA50AX01P are RoHS compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings.