TE Connectivity ALCOSWITCH 1478602-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1478602-2 is a snap action SPDT (Single Pole Double Throw) switch rated for 5A at 125V AC with a straight lever actuator and chassis mount configuration. This component is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

1478602-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 12141478602-2 Datasheet

Current PartRFQ

Z-15GW22-C

Omron Automation and SafetyIn Stock: 1133Z-15GW22-C Datasheet

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Z-15GW22S

Omron Automation and SafetyIn Stock: 1121Z-15GW22S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 1478602-2 are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Momentary
• Voltage rating: 125V AC minimum
• Current rating: 5A AC minimum
• Mounting type: Chassis Mount
• Termination style: Solder Lug

The Omron Automation and Safety Z-15GW22-C and Z-15GW22S models satisfy these core requirements. Both parts exceed the current rating specification (15A AC versus 5A AC), providing enhanced capacity. The Z-15GW22S variant is explicitly referenced in the original part's substitute field, confirming direct substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Omron Z-15GW22S is the primary substitute for the TE Connectivity 1478602-2. This part is explicitly listed in the original component's substitute field and is currently in active production status. The Z-15GW22S provides superior electrical life (500,000 cycles versus 50,000 cycles) and mechanical life (20,000,000 cycles versus 500,000 cycles), with RoHS compliance and IP40 ingress protection. The operating temperature range is reduced by 5°C at the upper limit (-25°C to 80°C versus -25°C to 85°C), which is acceptable for most applications within standard industrial operating conditions.

Omron Z-15GW22-C serves as an alternative substitute with identical electrical specifications to the Z-15GW22S but with IP00 ingress protection and unspecified mechanical parameters for operating force, pretravel, and differential travel. Selection between Z-15GW22-C and Z-15GW22S depends on environmental exposure requirements and packaging preferences (bulk versus standard packaging).

Both Omron alternatives exceed the current rating of the original part (15A AC versus 5A AC), providing design margin and enhanced reliability. The transition from straight lever to roller lever actuator represents a mechanical design change that does not affect electrical compatibility but may require mechanical interface verification in the application.

Frequently Asked Questions (FAQ)

Q: Can the Omron Z-15GW22S directly replace the TE Connectivity 1478602-2 in existing designs?

A: Yes. Both parts share identical circuit configuration (SPDT), switch function (On-Momentary), voltage rating (125V AC), mounting type (Chassis Mount), and termination style (Solder Lug). The Z-15GW22S is rated for higher current (15A AC versus 5A AC), providing enhanced capacity. The mechanical interface (chassis mount with solder lug termination) is compatible. Verification of the lever actuator geometry (roller versus straight) in the mechanical assembly is required.

Q: What is the difference between the Omron Z-15GW22-C and Z-15GW22S?

A: Both parts are functionally equivalent for electrical operation. The Z-15GW22-C provides IP00 ingress protection, while the Z-15GW22S provides IP40 ingress protection. The Z-15GW22S includes specified operating force (160gf), release force (42gf), and overtravel (0.094") parameters. The Z-15GW22S is packaged in bulk, while the Z-15GW22-C packaging is not specified. Selection depends on environmental exposure and mechanical parameter requirements.

Q: Why does the substitute part have a higher current rating than the original?

A: The Omron Z-15GW22 series is rated for 15A AC, exceeding the original 5A AC specification. This higher rating does not create incompatibility; it provides additional design margin and reliability. The application circuit determines actual current draw, not the component rating. The substitute part operates safely at the original 5A AC specification.

Q: Are there temperature range differences between the original and substitute parts?

A: The original TE Connectivity 1478602-2 operates from -25°C to 85°C. The Omron substitutes operate from -25°C to 80°C, a 5°C reduction at the upper limit. For applications operating within standard industrial temperature ranges (-25°C to 80°C), this difference is not significant. Applications requiring operation above 80°C require evaluation against the original specification.

Q: What compliance certifications apply to the substitute parts?

A: The Omron Z-15GW22-C and Z-15GW22S are RoHS Compliant with MSL rating of 1 (Unlimited). The original TE Connectivity 1478602-2 is REACH Unaffected. Both substitute parts meet current environmental compliance requirements for electronic components.

Q: How do the mechanical life ratings compare?

A: The original part specifies 500,000 mechanical cycles. The Omron substitutes specify 20,000,000 mechanical cycles, representing a 40-fold increase in mechanical durability. This enhanced specification provides extended component life and improved reliability in high-cycle applications.