Equivalent & Substitute Parts: 91MCE29-P1

Part Overview

The Honeywell 91MCE29-P1 is a snap action DPST switch rated for 6A at 120V AC with cross roller plunger actuation and panel mount configuration. This component features IP67 ingress protection, cable lead termination, and 1-meter cable length. The 91MCE29-P1 is classified as obsolete, necessitating identification of functionally equivalent active alternatives to support ongoing system maintenance and new production requirements.

Key Parameters

Parameter	Value
Circuit Configuration	DPST-NO/NC
Switch Function	On-Mom, Off-Mom
Current Rating (AC)	6A
Current Rating (DC)	550mA
Voltage Rating (AC)	120V
Voltage Rating (DC)	125V
Actuator Type	Cross Roller Plunger
Mounting Type	Panel Mount
Termination Style	Cable Leads
Ingress Protection	IP67
Operating Temperature Range	-25°C to 85°C
Electrical Life	500,000 Cycles
Mechanical Life	5,000,000 Cycles
RoHS Compliance	Compliant

Substitute Part Grouping Explanation

Substitution of the 91MCE29-P1 is determined by strict equivalence across the following electrical and mechanical parameters:

Mandatory Equivalence Criteria:

Circuit configuration: DPST-NO/NC
Switch function: On-Mom, Off-Mom
Current rating: 6A AC / 550mA DC
Voltage rating: 120V AC / 125V DC
Actuator type: Cross Roller Plunger
Mounting type: Panel Mount
Termination style: Cable Leads
Ingress protection: IP67

Acceptable Variation Parameters:

Operating temperature range (provided minimum -25°C is maintained)
Operating force, pretravel, differential travel, and overtravel (mechanical characteristics that do not affect electrical performance)
Electrical and mechanical life cycles (provided minimum 500,000 and 5,000,000 cycles respectively are met)

The NGCMA10AX01Q meets all mandatory equivalence criteria and qualifies as a direct substitute.

Parameter Comparison

Parameter	91MCE29-P1	NGCMA10AX01Q	Compatibility
Manufacturer	Honeywell Sensing and Productivity Solutions	Honeywell Sensing and Productivity Solutions	Same
Circuit Configuration	DPST-NO/NC	DPST-NO/NC	Equivalent
Switch Function	On-Mom, Off-Mom	On-Mom, Off-Mom	Equivalent
Current Rating (AC)	6A	6A	Equivalent
Current Rating (DC)	550mA	550mA	Equivalent
Voltage Rating (AC)	120V	120V	Equivalent
Voltage Rating (DC)	125V	125V	Equivalent
Actuator Type	Cross Roller Plunger	Cross Roller Plunger	Equivalent
Mounting Type	Panel Mount	Panel Mount	Equivalent
Termination Style	Cable Leads	Cable Leads	Equivalent
Ingress Protection	IP67	IP67	Equivalent
Operating Force	1122gf	1122gf	Equivalent
Operating Temperature Range	-25°C to 85°C	-25°C to 75°C	Acceptable Variation
Electrical Life	500,000 Cycles	500,000 Cycles	Equivalent
Mechanical Life	5,000,000 Cycles	5,000,000 Cycles	Equivalent
RoHS Compliance	Compliant	Compliant	Equivalent
Product Status	Obsolete	Active	Upgrade Path

Engineering Selection Recommendations

The NGCMA10AX01Q is the qualified substitute for the obsolete 91MCE29-P1. Both components are manufactured by Honeywell Sensing and Productivity Solutions and maintain identical electrical ratings, circuit configuration, and mechanical actuation characteristics.

Selection Basis:

The NGCMA10AX01Q provides functional equivalence across all critical electrical parameters: 6A AC / 550mA DC current capacity, 120V AC / 125V DC voltage ratings, DPST-NO/NC circuit configuration, and On-Mom/Off-Mom switch function. Both components feature cross roller plunger actuation, panel mount configuration, cable lead termination, and IP67 ingress protection.

The NGCMA10AX01Q carries active product status, ensuring ongoing availability and manufacturer support. Both components are RoHS compliant and carry MSL Level 1 moisture sensitivity classification.

The operating temperature range of the NGCMA10AX01Q (-25°C to 75°C) is narrower than the 91MCE29-P1 (-25°C to 85°C). Applications requiring operation above 75°C require evaluation against specific system thermal requirements.

Frequently Asked Questions (FAQ)

Q: Can the NGCMA10AX01Q directly replace the 91MCE29-P1 in existing designs?

A: The NGCMA10AX01Q is electrically and mechanically equivalent to the 91MCE29-P1 across all critical parameters. Direct substitution is supported for applications operating within the NGCMA10AX01Q temperature range of -25°C to 75°C. Applications requiring operation above 75°C require thermal environment assessment.

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

A: The primary differences are product status (91MCE29-P1 is obsolete; NGCMA10AX01Q is active) and operating temperature range (91MCE29-P1: -25°C to 85°C; NGCMA10AX01Q: -25°C to 75°C). Mechanical characteristics including pretravel, differential travel, and overtravel differ slightly but do not affect electrical performance or functional compatibility.

Q: Are both parts from the same manufacturer?

A: Yes. Both the 91MCE29-P1 and NGCMA10AX01Q are manufactured by Honeywell Sensing and Productivity Solutions.

Q: What is the cable length specification for the NGCMA10AX01Q?

A: The cable length specification for the NGCMA10AX01Q is not provided in the available technical parameters. Confirm cable length requirements with the manufacturer or component datasheet prior to procurement.

Q: Are both components RoHS compliant?

A: Yes. Both the 91MCE29-P1 and NGCMA10AX01Q are RoHS compliant and carry MSL Level 1 moisture sensitivity classification.

Q: What is the inventory status of these parts?

A: The 91MCE29-P1 has 1,088 pieces in stock (obsolete status). The NGCMA10AX01Q has 907 pieces in stock (active status).

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