Honeywell 91MCE1-PBQ Snap Action Switch - Equivalent & Substitute Parts

Part Overview

The Honeywell 91MCE1-PBQ is a DPST snap action 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 support and procurement planning. The switch features a round pin plunger actuator, connector termination, and is suitable for applications requiring dual-pole switching with momentary on/off operation.

Substiute Parts

91MCE1-PBQ

Honeywell Sensing and Productivity SolutionsIn Stock: 95791MCE1-PBQ Datasheet

Current PartRFQ

NGCMB00NX01B

Honeywell Sensing and Productivity SolutionsIn Stock: 1010NGCMB00NX01B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 91MCE1-PBQ 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 Compatibility Requirements:

• Actuator type: Round (Pin Plunger)
• Mounting type: Chassis Mount
• Termination style: Connector
• Ingress protection: IP67

Environmental & Regulatory Requirements:

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

The NGCMB00NX01B meets all mandatory electrical and mechanical parameters. Minor variations in mechanical travel specifications (pretravel, differential travel, overtravel) and operating temperature maximum (-75°C vs. -85°C) do not disqualify this substitute, as these represent tighter tolerances or reduced operating range rather than incompatibility.

Parameter Comparison

Engineering Selection Recommendations

The NGCMB00NX01B is the designated substitute for the obsolete 91MCE1-PBQ. Selection of this alternative is supported by the following factors:

Product Status: The 91MCE1-PBQ is obsolete, while NGCMB00NX01B is active and currently manufactured by Honeywell Sensing and Productivity Solutions, ensuring long-term availability and supply chain continuity.

Electrical Equivalence: Both components share identical electrical specifications across all critical parameters: 6A AC / 550mA DC current rating, 120V AC / 125V DC voltage rating, and DPST-NO/NC circuit configuration with On-Mom, Off-Mom switching function.

Mechanical Equivalence: Both components feature identical actuator type (round pin plunger), mounting configuration (chassis mount), termination style (connector), and ingress protection rating (IP67). Operating force is identical at 1122gf.

Regulatory Compliance: Both components are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, meeting identical environmental and regulatory requirements.

Operational Durability: Both components specify 500,000 electrical cycles and 5,000,000 mechanical cycles, ensuring equivalent service life expectations.

Temperature Consideration: The NGCMB00NX01B operates across -25°C to 75°C, compared to the original part's -25°C to 85°C range. This represents a 10°C reduction in maximum operating temperature. Applications operating above 75°C require thermal analysis to confirm compatibility.

Frequently Asked Questions (FAQ)

Q: Can NGCMB00NX01B directly replace 91MCE1-PBQ in existing designs?

A: Yes, for applications operating within the -25°C to 75°C temperature range. The substitute maintains identical electrical ratings (6A AC / 550mA DC, 120V AC / 125V DC), circuit configuration (DPST-NO/NC), mechanical interface (chassis mount, connector termination), and ingress protection (IP67). Applications requiring operation above 75°C require thermal evaluation.

Q: What are the key differences between these two parts?

A: The primary differences are product status (91MCE1-PBQ is obsolete; NGCMB00NX01B is active) and maximum operating temperature (85°C vs. 75°C). Mechanical travel specifications differ slightly: pretravel is 0.071" (1.8mm) for 91MCE1-PBQ versus 0.083" (2.1mm) for NGCMB00NX01B. These variations do not affect functional compatibility for standard applications.

Q: Are the connector terminations identical?

A: Both components use connector termination style. Physical connector compatibility must be verified against the specific connector type used in the original design, as this information is not differentiated in the provided specifications.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity classification. Both are classified under ECCN EAR99 for export control purposes.

Q: What is the inventory status for each part?

A: The 91MCE1-PBQ has 872 pieces in stock as new original inventory. The NGCMB00NX01B has 931 pieces in stock as new original inventory. Availability of the obsolete 91MCE1-PBQ may diminish over time.

Q: Are the electrical life and mechanical life ratings equivalent?

A: Yes. Both components specify 500,000 electrical cycles and 5,000,000 mechanical cycles, indicating equivalent durability and service life expectations under normal operating conditions.