Equivalent & Substitute Parts for 22SM426-T2

Part Overview

The 22SM426-T2 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with solder turret termination. This component operates at 5A/250V AC and 5A/30V DC with a round pin plunger actuator. The product is currently obsolete, making identification of equivalent and substitute parts essential for design continuity, maintenance, and system upgrades. Substitute parts must maintain functional compatibility while accommodating application-specific electrical and mechanical requirements.

Substiute Parts

22SM426-T2

Honeywell Sensing and Productivity SolutionsIn Stock: 85222SM426-T2 Datasheet

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11SM401-T

Honeywell Sensing and Productivity SolutionsIn Stock: 2019511SM401-T Datasheet

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ABS1410409

Panasonic Electric WorksIn Stock: 692ABS1410409 Datasheet

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ABS1410503

Panasonic Electric WorksIn Stock: 1072ABS1410503 Datasheet

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ABS1410509

Panasonic Electric WorksIn Stock: 697ABS1410509 Datasheet

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DB1C-A1AA

Hirose Electric Co LtdIn Stock: 919DB1C-A1AA Datasheet

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DC3C-A1AA

Hirose Electric Co LtdIn Stock: 1171DC3C-A1AA Datasheet

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MWZ101C01C01X01

APEM Inc.In Stock: 830MWZ101C01C01X01 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 22SM426-T2 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration (SPDT)
• Switch function (On-Momentary)
• Actuator type (Round pin plunger)
• Mounting type (Chassis mount)
• Operating position (0.330" / 8.4mm)

Electrical Compatibility Criteria:

• Current rating must equal or exceed 5A
• AC voltage rating must equal or exceed 250V
• DC voltage rating must equal or exceed 30V

Mechanical Compatibility Criteria:

• Operating force and release force within acceptable application tolerance
• Mechanical life rating of 10,000,000 cycles or higher
• Operating temperature range must encompass -55°C to 125°C

Substitutes are grouped into two categories:

Category 1 - Direct Electrical Equivalents (Full Rating Match):

• 11SM401-T (Honeywell): Maintains 5A/250V AC, 5A/30V DC ratings with identical mechanical specifications. Active product status provides supply continuity. Minor variation in overtravel (0.005" vs 0.003") is within acceptable tolerance.

Category 2 - Reduced Rating Substitutes (Conditional Use):

• ABS1410409, ABS1410503, ABS1410509 (Panasonic Electric Works): Rated at 2A/125V AC, 2A/30V DC. These parts are suitable only for applications where the actual operating current does not exceed 2A and AC voltage does not exceed 125V. All three maintain SPDT configuration, round pin plunger actuator, and chassis mount design.

Category 3 - Partial Specification Matches:

• MWZ101C01C01X01 (APEM Inc.): Rated at 5A/125V AC only. Suitable for AC applications up to 125V. No DC voltage rating provided. Enhanced ingress protection (IP67) available.
• DB1C-A1AA, DC3C-A1AA (Hirose Electric Co Ltd): Insufficient technical specifications provided for detailed compatibility assessment.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred):

The 11SM401-T is the primary substitute for the obsolete 22SM426-T2. Both components are manufactured by Honeywell Sensing and Productivity Solutions and maintain identical electrical ratings (5A/250V AC, 5A/30V DC) and mechanical specifications (SPDT, On-Momentary, round pin plunger, chassis mount, 0.330" operating position, 10,000,000 cycle mechanical life). The 11SM401-T is currently in active production status with substantial inventory availability (20,099 pieces), ensuring supply continuity. The minor variation in overtravel specification (0.005" versus 0.003") does not affect functional compatibility. Both components are RoHS compliant.

For Current-Limited Applications:

The Panasonic Electric Works ABS1410409, ABS1410503, and ABS1410509 switches are suitable substitutes only when the application operates at currents not exceeding 2A and AC voltages not exceeding 125V. These parts maintain the SPDT configuration, On-Momentary function, round pin plunger actuator, and chassis mount design. All three are active products with adequate inventory. The reduced mechanical life rating (5,000,000 cycles versus 10,000,000 cycles) and narrower operating temperature range (-40°C to 85°C versus -55°C to 125°C) must be evaluated against application requirements. Termination style differs (solder lug versus solder turret), requiring PCB layout verification.

For AC-Only Applications with Enhanced Environmental Protection:

The APEM Inc. MWZ101C01C01X01 provides 5A AC capability at 125V with IP67 ingress protection (dust tight, waterproof). This substitute is applicable only to AC circuits operating at 125V or below. No DC voltage rating is specified. The significantly reduced mechanical life (1,000,000 cycles) and narrower operating temperature range (-40°C to 85°C) restrict use to applications with lower cycle counts and moderate temperature environments. Termination style is solder lug.

Compliance Considerations:

All recommended substitutes maintain RoHS compliance status. The 11SM401-T carries REACH Unaffected designation. Selection should prioritize the 11SM401-T for new designs and maintenance applications requiring full electrical and mechanical equivalence to the original 22SM426-T2 specification.

Frequently Asked Questions (FAQ)

Q: Can the 11SM401-T directly replace the 22SM426-T2 without circuit modification?

A: Yes. The 11SM401-T maintains identical electrical ratings (5A/250V AC, 5A/30V DC), circuit configuration (SPDT), switch function (On-Momentary), actuator type (round pin plunger), mounting type (chassis mount), and operating position (0.330"). Both use solder turret termination. The only specification difference is overtravel (0.005" versus 0.003"), which does not affect functional compatibility. No circuit modification is required.

Q: What are the limitations of using Panasonic ABS141 series switches as substitutes?

A: The ABS1410409, ABS1410503, and ABS1410509 switches are rated at 2A/125V AC maximum, compared to the original 5A/250V AC rating. These substitutes are suitable only for applications where actual operating current does not exceed 2A and AC voltage does not exceed 125V. Additionally, mechanical life is reduced to 5,000,000 cycles (versus 10,000,000), and operating temperature range is narrower (-40°C to 85°C versus -55°C to 125°C). Termination style is solder lug rather than solder turret, requiring PCB layout verification.

Q: Is the APEM MWZ101C01C01X01 suitable for DC applications?

A: No. The MWZ101C01C01X01 is rated for 5A AC at 125V only. No DC voltage rating is specified in the technical data. This switch is suitable only for AC circuits. For applications requiring DC operation, the 11SM401-T or Panasonic ABS141 series (at reduced current ratings) are appropriate alternatives.

Q: What is the difference in termination style between the original part and substitutes?

A: The 22SM426-T2 uses solder turret termination, while the 11SM401-T also uses solder turret. However, the Panasonic ABS141 series and APEM MWZ101C01C01X01 use solder lug termination. Solder lug termination requires different PCB pad design and soldering approach compared to solder turret. Verify PCB layout compatibility before selecting these alternatives.

Q: Can the MWZ101C01C01X01 be used in applications requiring 250V AC operation?

A: No. The MWZ101C01C01X01 is rated at 125V AC maximum. It cannot be used in applications requiring 250V AC operation. The 11SM401-T is the only substitute that maintains the full 250V AC rating of the original 22SM426-T2.

Q: What is the mechanical life difference between the original part and substitutes?

A: The 22SM426-T2 and 11SM401-T both provide 10,000,000 cycle mechanical life. The Panasonic ABS141 series (ABS1410409, ABS1410503, ABS1410509) provide 5,000,000 cycles. The APEM MWZ101C01C01X01 provides only 1,000,000 cycles. For applications with high cycle count requirements, the 11SM401-T is the preferred substitute.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitutes are RoHS compliant. The 11SM401-T, Panasonic ABS141 series, and APEM MWZ101C01C01X01 all meet RoHS requirements. The 11SM401-T carries additional REACH Unaffected designation.

Q: What is the operating temperature range limitation for Panasonic and APEM substitutes?

A: The original 22SM426-T2 operates from -55°C to 125°C. The Panasonic ABS141 series and APEM MWZ101C01C01X01 both operate from -40°C to 85°C. These substitutes cannot be used in applications requiring operation below -40°C or above 85°C. The 11SM401-T maintains the full -55°C to 125°C range.

Q: Does the 0.325" operating position of the MWZ101C01C01X01 affect compatibility?

A: The MWZ101C01C01X01 has an operating position of 0.325" (8.25mm) compared to 0.330" (8.4mm) for the original part. This 0.005" difference may affect mechanical fit and actuation characteristics in applications with tight mechanical tolerances. Verify mechanical compatibility with the specific application before selection.