AM51162C43N-A Equivalent & Substitute Parts

Part Overview

The AM51162C43N-A is a snap-action switch manufactured by Panasonic Electric Works, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with chassis mount installation. This switch is rated for 11A AC at 125V and 600mA DC at 125V, featuring a straight lever actuator and quick connect termination. The product is currently obsolete, making identification of equivalent substitute parts essential for system maintenance, repair, and component sourcing.

Substiute Parts

AM51162C43N-A

Panasonic Electric WorksIn Stock: 1255AM51162C43N-A Datasheet

Current PartRFQ

TFECK6ST2540Y

C&KIn Stock: 1159TFECK6ST2540Y Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51162C43N-A is determined by the following critical parameters:

Circuit Configuration & Function: The substitute must maintain SPST-NO circuit topology with Off-Mom (momentary) switch function to preserve electrical behavior in the target application.

Current & Voltage Ratings: The substitute must support minimum 11A AC current and 125V AC voltage to meet or exceed the original specification. DC ratings must support at least 600mA at 125V DC.

Mechanical Interface: The substitute must feature chassis mount installation with quick connect termination (0.187" / 4.7mm) to ensure physical compatibility without redesign.

Actuator Configuration: Straight lever actuator type is required to maintain consistent operator interface and mounting envelope.

Operating Characteristics: Operating force, release force, travel distances, and temperature range are secondary parameters that may vary within acceptable engineering tolerances for equivalent functionality.

The TFECK6ST2540Y from C&K meets these primary substitution criteria while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The TFECK6ST2540Y is an active product from C&K and serves as a functional equivalent to the obsolete AM51162C43N-A. Both switches share identical circuit topology (SPST-NO), switch function (Off-Mom), current rating (11A AC), and mechanical interface (chassis mount with 0.187" quick connect termination).

The TFECK6ST2540Y provides enhanced AC voltage rating (277V versus 125V), extending application flexibility for higher-voltage circuits. DC current rating is slightly reduced (500mA versus 600mA), which is acceptable for most applications operating within the 125V DC specification.

Operating temperature range differs: the AM51162C43N-A operates from -25°C to 105°C, while the TFECK6ST2540Y operates from -40°C to 85°C. Application requirements determine whether this variance impacts suitability.

The TFECK6ST2540Y carries RoHS3 compliance and REACH compliance status, meeting current regulatory requirements for electronic component sourcing.

Frequently Asked Questions (FAQ)

Q: Can the TFECK6ST2540Y directly replace the AM51162C43N-A without circuit modification?

A: Yes, for applications operating within 125V AC and 125V DC specifications. Both switches maintain identical SPST-NO circuit topology, momentary function, 11A AC current rating, and mechanical interface (chassis mount, 0.187" quick connect termination). No circuit redesign is required.

Q: What is the impact of the reduced DC current rating (500mA versus 600mA)?

A: The TFECK6ST2540Y supports 500mA DC at 125V, compared to 600mA for the original part. This 100mA reduction is acceptable for applications drawing less than 500mA DC. Applications requiring the full 600mA DC capacity must evaluate alternative substitutes or confirm actual circuit current draw.

Q: Does the higher AC voltage rating (277V) of the TFECK6ST2540Y affect compatibility?

A: No. Higher voltage rating indicates greater electrical capability and does not compromise operation at lower voltages. The TFECK6ST2540Y is suitable for both 125V and 277V AC applications, providing broader application flexibility than the original part.

Q: How do the operating temperature ranges compare?

A: The AM51162C43N-A operates from -25°C to 105°C, while the TFECK6ST2540Y operates from -40°C to 85°C. The substitute provides lower temperature capability (-40°C versus -25°C) but reduced upper temperature limit (85°C versus 105°C). Application environment determines whether this variance is acceptable.

Q: Are there packaging or inventory considerations?

A: The TFECK6ST2540Y is supplied in bulk packaging and is currently in active production with 1052 units in stock. The original AM51162C43N-A is obsolete with 1175 units remaining in inventory. For new designs or long-term sourcing, the active TFECK6ST2540Y is the recommended selection.

Q: What compliance certifications apply to the TFECK6ST2540Y?

A: The TFECK6ST2540Y is RoHS3 compliant and REACH affected. Both parts carry EAR99 ECCN classification and 8536.50.7000 HTSUS code.