Equivalent & Substitute Parts for Honeywell 91MCE1-P5

Part Overview

The Honeywell 91MCE1-P5 is a snap action DPST switch rated for 6A at 120V AC with chassis mount configuration and IP67 ingress protection. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The switch features a round pin plunger actuator, cable lead termination, and operates across a temperature range of -25°C to 85°C with 500,000 electrical cycles and 5,000,000 mechanical cycles rated life.

Substiute Parts

91MCE1-P5

Honeywell Sensing and Productivity SolutionsIn Stock: 115991MCE1-P5 Datasheet

Current PartRFQ

NGCMA50AX01B

Honeywell Sensing and Productivity SolutionsIn Stock: 1071NGCMA50AX01B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 91MCE1-P5 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration: DPST-NO/NC
• Switch function: On-Mom, Off-Mom
• Current rating: 6A (AC) and 550mA (DC)
• Voltage rating: 120V (AC) and 125V (DC)

Mechanical & Physical Compatibility Requirements:

• Actuator type: Round (Pin Plunger)
• Mounting type: Chassis Mount
• Termination style: Cable Leads
• Ingress protection: IP67 - Dust Tight, Waterproof

Performance & Lifecycle Requirements:

• Electrical life: 500,000 Cycles
• Mechanical life: 5,000,000 Cycles
• Operating temperature range: -25°C to 85°C (minimum)
• RoHS compliance: Required

The NGCMA50AX01B meets all critical electrical, mechanical, and performance parameters. Operational force specifications (1122gf) are identical. Minor variations in pretravel, differential travel, and overtravel dimensions fall within acceptable mechanical tolerances for snap action switch operation. The substitute part operates at a reduced maximum temperature of 75°C, which represents a functional constraint for applications requiring the full -25°C to 85°C range.

Parameter Comparison

Engineering Selection Recommendations

The NGCMA50AX01B is the direct functional equivalent for the obsolete 91MCE1-P5. Both components are manufactured by Honeywell Sensing and Productivity Solutions and share identical electrical ratings, circuit configuration, mechanical mounting, and lifecycle specifications.

Selection Criteria:

The NGCMA50AX01B is suitable for direct substitution in applications where the operating temperature does not exceed 75°C. For systems requiring operation at temperatures between 75°C and 85°C, alternative components must be evaluated.

The substitute part is currently in active production status with 1011 pieces available in inventory, ensuring supply chain continuity compared to the obsolete 91MCE1-P5 (1121 pieces in stock).

Both components maintain RoHS compliance and carry identical ECCN (EAR99) classification. The NGCMA50AX01B operates under different HTSUS classification (8536.50.7000 versus 8536.50.9055), which may affect tariff treatment depending on import jurisdiction.

Minor dimensional variations in pretravel, differential travel, and overtravel are within acceptable mechanical tolerances for snap action switch applications and do not affect functional compatibility in standard switching circuits.

Frequently Asked Questions (FAQ)

Q: Can the NGCMA50AX01B replace the 91MCE1-P5 in all applications?

A: The NGCMA50AX01B is functionally equivalent for applications operating at temperatures up to 75°C. The original 91MCE1-P5 is rated to 85°C. Applications requiring operation above 75°C require alternative component evaluation.

Q: Are the electrical ratings identical between these two parts?

A: Yes. Both components are rated for 6A at 120V AC and 550mA at 125V DC with DPST-NO/NC circuit configuration and On-Mom, Off-Mom switch function.

Q: What is the significance of the dimensional variations shown in the parameter comparison?

A: The pretravel, differential travel, and overtravel variations are mechanical characteristics of the snap action mechanism. These variations fall within acceptable tolerances for switch operation and do not affect electrical performance or circuit compatibility.

Q: Why is the 91MCE1-P5 classified as obsolete?

A: The 91MCE1-P5 is no longer in active production. The NGCMA50AX01B from the active NGC series provides equivalent functionality and is the recommended replacement for new designs and ongoing maintenance.

Q: Are there packaging differences between these components?

A: The 91MCE1-P5 is packaged with cable leads (5m cable length specified). The NGCMA50AX01B is supplied in bulk packaging. Both use identical cable lead termination style.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the 91MCE1-P5 and NGCMA50AX01B are RoHS compliant with MSL rating of 1 (Unlimited moisture sensitivity level).

Q: What is the inventory status for these components?

A: The obsolete 91MCE1-P5 has 1121 pieces in stock. The active substitute NGCMA50AX01B has 1011 pieces in stock, providing immediate availability for new orders.