Equivalent & Substitute Parts for Carling Technologies 2FC53-78

Part Overview

The Carling Technologies 2FC53-78 is a toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 15A AC at 125V, designed for panel mount applications. This switch features a standard round actuator with a 17.45mm length and non-illuminated design. The part is actively manufactured and maintains full compliance with RoHS3 and REACH regulations. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when specific termination requirements differ.

Substiute Parts

2FC53-78

Carling TechnologiesIn Stock: 10722FC53-78 Datasheet

Current PartRFQ

2FC53-73/TABS

Carling TechnologiesIn Stock: 159432FC53-73/TABS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 2FC53-73/TABS is classified as an equivalent component based on the following critical parameters that determine functional interchangeability:

Matching Parameters:

• Identical circuit configuration (SPDT)
• Identical switch function (On-Off-On)
• Identical current rating (15A AC)
• Identical voltage rating (125V AC)
• Identical mounting type (Panel Mount)
• Identical actuator type and length (Standard Round, 17.45mm)
• Identical panel cutout dimensions (12.70mm circular)
• Identical bushing thread specification (15/32-32)
• Identical operating temperature range (-17.8°C to 65.6°C)
• Identical electrical life rating (50,000 cycles)
• Identical compliance certifications (RoHS3, REACH Unaffected)

Differentiating Parameter:

• Termination style: 2FC53-78 uses Solder Lug termination, while 2FC53-73/TABS uses Quick Connect 0.250" (6.3mm) termination

The substitution is valid when the application circuit design accommodates the Quick Connect termination style in place of solder lug connections.

Parameter Comparison

Engineering Selection Recommendations

Both the 2FC53-78 and 2FC53-73/TABS are active products manufactured by Carling Technologies and maintain identical compliance certifications (RoHS3 Compliant, REACH Unaffected). Selection between these parts is determined by the termination interface requirement of the application circuit.

2FC53-78 Selection Criteria:

• Applications requiring solder lug termination for direct PCB or wire soldering
• Designs with established solder connection infrastructure

2FC53-73/TABS Selection Criteria:

• Applications utilizing quick connect terminal blocks or receptacles
• Designs requiring tool-free, non-soldered connections
• Maintenance scenarios where rapid component replacement is necessary

Both parts satisfy identical electrical performance specifications and environmental operating conditions. The choice between them is a circuit design decision based on termination methodology, not electrical or mechanical capability.

Frequently Asked Questions (FAQ)

Q: Can 2FC53-73/TABS be used as a direct replacement for 2FC53-78 without circuit modification?

A: No. The termination style differs between these parts. The 2FC53-78 uses solder lug termination while the 2FC53-73/TABS uses quick connect 0.250" (6.3mm) termination. The application circuit must be designed to accommodate the specific termination type. Direct substitution without circuit interface modification is not possible.

Q: Are the electrical ratings identical between 2FC53-78 and 2FC53-73/TABS?

A: Yes. Both parts are rated for 15A AC at 125V with SPDT circuit configuration and On-Off-On switch function. Electrical performance and current-carrying capacity are identical.

Q: Do both parts fit the same panel cutout?

A: Yes. Both parts require a 12.70mm diameter circular panel cutout and use the same 15/32-32 bushing thread specification. Physical panel mounting dimensions are identical.

Q: What is the operating temperature range for both parts?

A: Both the 2FC53-78 and 2FC53-73/TABS operate across the temperature range of -17.8°C to 65.6°C.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both parts are RoHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: How many switching cycles are rated for these parts?

A: Both parts are rated for 50,000 electrical cycles, providing equivalent operational life expectancy.

Q: What is the difference in actuator specifications between these parts?

A: There is no difference. Both parts feature a standard round actuator with a length of 17.45mm.