TE Connectivity ALCOSWITCH 1478618-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1478618-5 is a snap-action switch with SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration, rated for 16A at 125V AC. This component features a lever roller actuator and chassis mount termination using quick connect 0.250" (6.3mm) terminals. The product is classified as obsolete, making identification of equivalent substitute parts necessary for ongoing maintenance, repair, and design continuity in applications requiring this switch type.

Substiute Parts

1478618-5

TE Connectivity ALCOSWITCH SwitchesIn Stock: 9961478618-5 Datasheet

Current PartRFQ

LS085R105F250C1C

E-SwitchIn Stock: 1105LS085R105F250C1C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity ALCOSWITCH 1478618-5 is constrained by the following critical parameters that must align between the main part and any substitute:

Mandatory Matching Parameters:

• Circuit Configuration: SPST-NO
• Switch Function: Off-Mom (Off-Momentary)
• Actuator Type: Lever, Roller
• Mounting Type: Chassis Mount
• Operating Position: 0.815" (20.7mm)

Electrical Performance Constraints: The main part operates at 16A AC / 125V AC. Substitute parts must maintain electrical ratings sufficient for the intended application. The operating force (140gf) and release force (20gf) establish the mechanical actuation profile.

Mechanical Compatibility: The operating position of 0.815" (20.7mm) is a critical dimension for mechanical fit within the application. Pretravel, differential travel, and overtravel specifications must be evaluated for functional compatibility.

Termination Compatibility: The quick connect 0.250" (6.3mm) termination style is a primary interface specification. Substitute parts with different termination styles require adapter evaluation.

The identified substitute part LS085R105F250C1C from E-Switch shares the core functional parameters (SPST-NO circuit, Off-Mom function, lever roller actuator, chassis mount, and matching operating position) but operates at reduced electrical ratings (0.4VA at 20V AC/DC) and exhibits different mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TE Connectivity ALCOSWITCH 1478618-5 is classified as obsolete. The E-Switch LS085R105F250C1C maintains active product status, ensuring ongoing availability and manufacturer support.

Compliance and Certifications: The E-Switch LS085R105F250C1C is ROHS3 compliant, whereas RoHS status for the main part is not specified. Both parts carry REACH Unaffected and EAR99 ECCN classifications. The substitute part's active compliance status provides regulatory alignment for new designs and ongoing applications.

Electrical Rating Limitations: The E-Switch LS085R105F250C1C operates at significantly reduced electrical ratings (0.4VA at 20V AC/DC) compared to the main part (16A at 125V AC). This substitute is suitable only for applications operating within the lower voltage and current envelope. Direct substitution in high-current or high-voltage applications is not supported by the electrical specifications.

Mechanical Life Consideration: The main part specifies 10,000,000 mechanical cycles, while the substitute provides 1,000,000 cycles. Applications requiring extended mechanical life should account for this tenfold reduction in rated mechanical durability.

Termination Interface: The termination styles differ: the main part uses 0.250" (6.3mm) quick connect terminals, while the substitute uses 0.187" (4.7mm) quick connect terminals. Connector compatibility must be evaluated for each application.

Frequently Asked Questions (FAQ)

Q: Can the E-Switch LS085R105F250C1C directly replace the TE Connectivity ALCOSWITCH 1478618-5 in all applications?

A: No. While both parts share identical circuit configuration (SPST-NO), switch function (Off-Mom), actuator type (lever roller), mounting type (chassis mount), and operating position (0.815"), the E-Switch substitute operates at significantly lower electrical ratings (0.4VA at 20V AC/DC versus 16A at 125V AC). Direct substitution is limited to applications operating within the lower electrical envelope. Termination connector differences (0.250" versus 0.187" quick connect) also require evaluation.

Q: What are the key functional parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: circuit configuration (SPST-NO), switch function (Off-Mom), actuator type (lever roller), mounting type (chassis mount), and operating position (0.815" / 20.7mm). These parameters establish the core functional equivalence. Electrical ratings, mechanical life, operating temperature range, and termination style are secondary parameters that must be evaluated for specific application requirements.

Q: How do the mechanical characteristics differ between these parts?

A: The main part specifies 140gf operating force and 20gf release force with 0.063" pretravel. The substitute specifies 250gf operating force and 50gf release force with 0.106" pretravel. The substitute requires higher actuation force and exhibits greater pretravel distance. Mechanical life differs significantly: 10,000,000 cycles (main part) versus 1,000,000 cycles (substitute).

Q: Are there termination compatibility issues?

A: Yes. The TE Connectivity ALCOSWITCH 1478618-5 uses quick connect 0.250" (6.3mm) terminals, while the E-Switch LS085R105F250C1C uses quick connect 0.187" (4.7mm) terminals. Existing connector interfaces designed for 0.250" terminals are not directly compatible with 0.187" terminals. Adapter solutions or connector replacement may be required.

Q: What is the operating temperature range difference?

A: The main part operates from -20°C to 130°C, while the substitute operates from -25°C to 85°C. The substitute has a lower maximum operating temperature (85°C versus 130°C), which may limit use in high-temperature applications. The substitute provides slightly lower minimum temperature capability (-25°C versus -20°C).

Q: How do the electrical life ratings compare?

A: The main part is rated for 100,000 electrical cycles, while the substitute is rated for 50,000 electrical cycles. Applications requiring extended electrical life should account for this reduced cycle rating in the substitute part.

Q: What compliance advantages does the substitute part offer?

A: The E-Switch LS085R105F250C1C is ROHS3 compliant and maintains active product status, ensuring ongoing manufacturer support and regulatory alignment. The main part's RoHS status is not specified, and its obsolete classification limits future availability and support.