Honeywell 22SM401 SPDT Snap Action Switch Equivalent & Substitute Parts

Part Overview

The Honeywell 22SM401 is an active SPDT snap action switch with chassis mount configuration, rated for 5A at 250V AC and 30V DC. This switch features a round pin plunger actuator and solder lug termination, designed for On-Momentary operation. The part is RoHS compliant and currently in active production status with 1,066 units in stock. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical specifications, and form factor compatibility within the SM series product family.

Substiute Parts

22SM401

Honeywell Sensing and Productivity SolutionsIn Stock: 108922SM401 Datasheet

Current PartRFQ

MS0850500F060S1A

E-SwitchIn Stock: 1035MS0850500F060S1A Datasheet

SimilarRFQ

MS0850500F080S1A

E-SwitchIn Stock: 1289MS0850500F080S1A Datasheet

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MS0850500F250S1A

E-SwitchIn Stock: 1435MS0850500F250S1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 22SM401 are identified from the E-Switch MS series based on the following critical parameters that determine substitution eligibility:

Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Momentary
• Current rating: 5A AC
• Actuator type: Round pin plunger
• Mounting type: Chassis mount
• Termination style: Solder lug
• Base product compatibility: MS0850500 series

Substitution Constraints: The substitute parts operate at 125V AC maximum, which is lower than the 22SM401's 250V AC rating. Substitution is valid only in applications where the actual operating voltage does not exceed 125V AC. The mechanical life of substitute parts (1,000,000 cycles) is lower than the 22SM401 (10,000,000 cycles), requiring application-specific cycle life assessment.

Three E-Switch models are identified as substitutes, differentiated by operating force specifications: MS0850500F060S1A (60gf), MS0850500F080S1A (80gf), and MS0850500F250S1A (250gf).

Parameter Comparison

Engineering Selection Recommendations

Voltage Compatibility Assessment: The 22SM401 operates at 250V AC maximum, while all E-Switch MS0850500 series substitutes are rated for 125V AC maximum. Substitution is valid only when the application circuit operates at 125V AC or lower. For applications requiring 250V AC operation, the 22SM401 remains the required selection.

Mechanical Life Consideration: The 22SM401 provides 10,000,000 mechanical cycles, while substitute parts provide 1,000,000 cycles. Applications requiring extended cycle life beyond 1,000,000 cycles necessitate the 22SM401.

Operating Temperature Range: The 22SM401 operates from -55°C to 125°C, while E-Switch substitutes operate from -25°C to 85°C. Applications requiring operation below -25°C or above 85°C require the 22SM401.

Operating Force Selection: Among E-Switch substitutes, select based on application actuation force requirements:

• MS0850500F060S1A: 60gf operating force for light-touch applications
• MS0850500F080S1A: 80gf operating force for standard applications
• MS0850500F250S1A: 250gf operating force for high-force applications

Compliance Status: All parts maintain RoHS compliance. E-Switch substitutes carry ROHS3 and REACH Unaffected certifications. Both manufacturers assign EAR99 ECCN classification and 8536.50.7000 HTSUS code.

Frequently Asked Questions (FAQ)

Q: Can MS0850500F060S1A, MS0850500F080S1A, or MS0850500F250S1A be used as direct replacements for 22SM401?

A: Direct replacement is valid only in applications where the operating voltage does not exceed 125V AC and mechanical cycle life requirements do not exceed 1,000,000 cycles. The 22SM401 is required for 250V AC applications or extended cycle life operation.

Q: What is the primary difference between the three E-Switch substitute models?

A: The three E-Switch models differ in operating force specification. MS0850500F060S1A requires 60gf, MS0850500F080S1A requires 80gf, and MS0850500F250S1A requires 250gf. Selection depends on the mechanical actuation force available in the application.

Q: Are there temperature limitations when using E-Switch substitutes?

A: Yes. E-Switch MS series substitutes operate from -25°C to 85°C, compared to the 22SM401 range of -55°C to 125°C. Applications requiring operation outside the -25°C to 85°C range require the 22SM401.

Q: How do the electrical life ratings compare?

A: The 22SM401 does not specify electrical life. E-Switch substitutes specify 50,000 electrical cycles. For applications with defined electrical cycle requirements, E-Switch specifications provide measurable performance data.

Q: Are all parts RoHS compliant?

A: Yes. The 22SM401 is RoHS Compliant. E-Switch substitutes are ROHS3 Compliant. Both compliance levels are acceptable for RoHS-regulated applications.

Q: What packaging differences exist?

A: The 22SM401 is supplied in standard packaging. E-Switch substitutes are supplied in Bulk packaging. Confirm packaging compatibility with procurement requirements.

Q: Can operating position differences affect mechanical fit?

A: The 22SM401 has an operating position of 0.330" (8.4mm), while E-Switch substitutes have 0.335" (8.5mm). This 0.005" difference is minimal but should be confirmed against mechanical mounting tolerances in the application.