AH718079-A Snap Action Switch SPDT Equivalent & Substitute Parts

Part Overview

The Panasonic Electric Works AH718079-A is a snap action switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 15A AC at 250V and 600mA DC at 125V. This chassis-mounted switch features a round pin plunger actuator with quick connect 0.250" (6.3mm) termination. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and new design applications requiring compatible switching functionality.

Substiute Parts

AH718079-A

Panasonic Electric WorksIn Stock: 971AH718079-A Datasheet

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83161806

CrouzetIn Stock: 78583161806 Datasheet

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LS0851500F100C2A

E-SwitchIn Stock: 1218LS0851500F100C2A Datasheet

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LS0851500F160C2A

E-SwitchIn Stock: 1457LS0851500F160C2A Datasheet

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LS0851500F250C1A

E-SwitchIn Stock: 993LS0851500F250C1A Datasheet

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V7-4A17D8-407

Honeywell Sensing and Productivity SolutionsIn Stock: 857V7-4A17D8-407 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the AH718079-A is determined by the following critical parameters:

• Circuit Configuration: SPDT topology required for equivalent switching behavior
• Switch Function: On-Momentary operation maintained across all substitutes
• Current Rating: Minimum 15A AC capability at operating voltage
• Voltage Rating: AC voltage compatibility at 125V or 250V
• Actuator Type: Round pin plunger for mechanical compatibility
• Mounting Type: Chassis mount configuration
• Termination Style: Quick connect 0.250" (6.3mm) or 0.187" (4.7mm) compatibility
• Operating Temperature: Functional range overlap with -25°C to 80°C baseline

The substitute parts are grouped into two categories based on current rating alignment:

Category 1 - Full Current Rating Match (15A AC): E-Switch LS series (LS0851500F100C2A, LS0851500F160C2A, LS0851500F250C1A) maintain 15A AC current capacity with identical mechanical dimensions and SPDT configuration.

Category 2 - Reduced Current Rating (5A AC): Crouzet 83161806 and Honeywell V7-4A17D8-407 provide 5A AC capacity, suitable for applications with lower current demands while maintaining SPDT functionality and chassis mount configuration.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (15A AC Capacity Required)

The E-Switch LS0851500 series (LS0851500F100C2A, LS0851500F160C2A, LS0851500F250C1A) provides the closest functional equivalence to the AH718079-A. All three variants maintain 15A AC current rating, SPDT configuration, round pin plunger actuator, and identical 0.579" (14.7mm) operating position. These parts are currently in active production status with ROHS3 compliance. Selection among the three LS variants depends on operating force requirements: 100gf (LS0851500F100C2A), 160gf (LS0851500F160C2A), or 250gf (LS0851500F250C1A).

Voltage consideration: The LS series is rated for 125V AC, compared to the original 250V AC rating. Applications operating at 125V AC or lower are fully compatible. Applications requiring 250V AC operation must use alternative substitutes.

For 250V AC Applications

The Crouzet 83161806 maintains 250V AC voltage rating and 0.250" (6.3mm) quick connect termination. However, current capacity is reduced to 5A AC. This substitute is suitable for applications where 5A AC capacity is sufficient and 250V AC voltage rating is required.

For Reduced Current Applications (5A AC)

The Honeywell V7-4A17D8-407 provides 5A AC capacity with 125V AC rating and 100,000 electrical life cycles matching the original part. The actuator type differs (lever, formed vs. round pin plunger), requiring mechanical compatibility verification in the application. This part is RoHS compliant and currently in active production.

Compliance and Availability

All active substitute parts carry current compliance certifications (ROHS3 or RoHS Compliant) and are in active production status with documented inventory availability. The original AH718079-A is obsolete; substitution is necessary for new procurement.

Frequently Asked Questions (FAQ)

Q: Can the E-Switch LS0851500 series directly replace the AH718079-A in all applications?

A: The LS series provides functional equivalence for SPDT switching at 15A AC, identical mechanical dimensions, and compatible termination. However, voltage rating differs: LS series is rated 125V AC versus the original 250V AC. Direct replacement is valid for applications operating at 125V AC or lower. For 250V AC applications, alternative substitutes must be evaluated.

Q: What is the difference between LS0851500F100C2A, LS0851500F160C2A, and LS0851500F250C1A?

A: All three E-Switch variants share identical electrical ratings (15A AC @ 125V), circuit configuration (SPDT), and mechanical dimensions. The primary difference is operating force: 100gf, 160gf, and 250gf respectively. Selection depends on the required actuation force for the specific application. Additionally, LS0851500F250C1A uses 0.187" (4.7mm) quick connect termination versus 0.250" (6.3mm) for the other two variants.

Q: Why does the Crouzet 83161806 have lower current rating than the original part?

A: The Crouzet 83161806 is rated for 5A AC current capacity, compared to 15A AC for the AH718079-A. This is a design characteristic of the Crouzet switch. It is suitable as a substitute only for applications where 5A AC capacity is sufficient. The advantage is that it maintains the original 250V AC voltage rating and 0.250" (6.3mm) quick connect termination.

Q: Is the Honeywell V7-4A17D8-407 compatible with the original mounting configuration?

A: The Honeywell V7-4A17D8-407 shares the same chassis mount configuration and quick connect termination (0.187" / 4.7mm). However, the actuator type differs: the original uses a round pin plunger, while the Honeywell uses a lever, formed actuator. Mechanical compatibility must be verified in the specific application to ensure the lever actuator does not interfere with surrounding components or operational requirements.

Q: What compliance certifications apply to these substitute parts?

A: The E-Switch LS series carries ROHS3 compliance. The Honeywell V7-4A17D8-407 carries RoHS compliance. The Crouzet 83161806 compliance status is not specified in the provided data. All parts carry REACH Unaffected status and EAR99 ECCN classification.

Q: Are all substitute parts currently available?

A: Yes. The E-Switch LS variants have documented inventory (1,200 to 1,377 pieces), the Crouzet 83161806 has 700 pieces, and the Honeywell V7-4A17D8-407 has 783 pieces in stock. The original AH718079-A is obsolete with no new production.

Q: What is the electrical life difference between the original and substitute parts?

A: The original AH718079-A is rated for 100,000 electrical cycles. The E-Switch LS series is rated for 50,000 cycles, and the Honeywell V7-4A17D8-407 is rated for 100,000 cycles. The Crouzet 83161806 electrical life is not specified. For applications requiring extended electrical life, the Honeywell substitute matches the original specification.