AM51110C43N-A Equivalent & Substitute Parts

Part Overview

The AM51110C43N-A is a snap action switch manufactured by Panasonic Electric Works, classified as SPDT (Single Pole Double Throw) with On-Mom functionality. This component is rated for 11A AC at 125V and features a round pin plunger actuator with chassis mount configuration. The product is currently obsolete, making equivalent substitute parts necessary for system maintenance, repair, and legacy equipment support.

Substiute Parts

AM51110C43N-A

Panasonic Electric WorksIn Stock: 1206AM51110C43N-A Datasheet

Current PartRFQ

83161806

CrouzetIn Stock: 78583161806 Datasheet

SimilarRFQ

LS0851500F250C1A

E-SwitchIn Stock: 993LS0851500F250C1A Datasheet

SimilarRFQ

TFCGK6VP0040C

C&KIn Stock: 1082TFCGK6VP0040C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM51110C43N-A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPDT
• Switch function must be On-Mom
• Actuator type must be Round (Pin Plunger)
• Mounting type must be Chassis Mount
• Termination style must be Quick Connect - 0.187" (4.7mm)

Electrical Performance Criteria:

• Current rating must support minimum 11A AC operation
• Voltage rating must support minimum 125V AC operation
• DC ratings must support minimum 600mA at 125V DC

Mechanical Criteria:

• Operating position must be 0.579" (14.7mm)
• Moisture Sensitivity Level must be 1 (Unlimited)

Three substitute parts meet these core requirements with variations in electrical performance and operating characteristics:

1. TFCGK6VP0040C (C&K) – Exceeds voltage rating (277V AC); matches current and termination specifications
2. LS0851500F250C1A (E-Switch) – Exceeds current rating (15A AC); matches voltage and termination specifications
3. 83161806 (Crouzet) – Reduced current rating (5A AC); elevated voltage rating (250V AC); different termination size (0.250")

Parameter Comparison

Engineering Selection Recommendations

TFCGK6VP0040C (C&K) – Recommended for 125V AC Systems

This substitute provides direct electrical compatibility with the original AM51110C43N-A specification. Both components support 11A AC at 125V with identical 0.187" termination. The C&K part exceeds the voltage requirement at 277V AC, providing operational margin. ROHS3 compliance and active product status ensure long-term availability and regulatory alignment. The reduced DC current rating (500mA versus 600mA) and narrower operating temperature range (-40°C to 85°C versus -25°C to 105°C) require verification against specific application requirements.

LS0851500F250C1A (E-Switch) – Recommended for Current Margin Applications

This substitute provides 15A AC capacity, exceeding the original 11A requirement by 36%. Voltage rating matches at 125V AC with identical 0.187" termination. ROHS3 compliance and active product status support regulatory requirements. The significantly reduced mechanical life (1,000,000 cycles versus 10,000,000 cycles) and electrical life (50,000 cycles versus 100,000 cycles) indicate this part is suitable for lower-cycle-count applications. Operating temperature range (-25°C to 85°C) is narrower than the original.

83161806 (Crouzet) – Limited Substitution Scope

This substitute is suitable only for applications where current demand does not exceed 5A AC. The elevated voltage rating (250V AC) and extended operating temperature range (-60°C to 150°C) provide operational advantages in specific environments. The 0.250" termination requires connector modification or adapter consideration. RoHS compliance and active product status support regulatory alignment. The superior mechanical life (20,000,000 cycles) suits high-cycle applications within the 5A current constraint.

Frequently Asked Questions (FAQ)

Q: Can TFCGK6VP0040C directly replace AM51110C43N-A without circuit modification?

A: Yes, for applications operating at 125V AC with 11A or less current draw. Both components feature identical SPDT On-Mom configuration, 0.187" Quick Connect termination, and 0.579" operating position. No circuit modification is required.

Q: What is the primary limitation of the Crouzet 83161806 substitute?

A: The 5A AC current rating is insufficient for the original 11A specification. This part is suitable only for applications requiring 5A or less. Additionally, the 0.250" termination differs from the original 0.187" size, requiring connector compatibility verification.

Q: Which substitute offers the best mechanical durability?

A: The Crouzet 83161806 provides 20,000,000 mechanical cycles, exceeding the original 10,000,000 cycles. However, this advantage applies only within its 5A current limitation. For 11A operation, the original AM51110C43N-A specification of 10,000,000 cycles cannot be exceeded by available substitutes.

Q: Are all substitutes RoHS compliant?

A: Yes. TFCGK6VP0040C and LS0851500F250C1A are ROHS3 compliant. The Crouzet 83161806 is RoHS compliant. All three substitutes meet current regulatory requirements.

Q: What is the impact of operating temperature range differences?

A: The original AM51110C43N-A operates from -25°C to 105°C. TFCGK6VP0040C operates to 85°C maximum, and LS0851500F250C1A also operates to 85°C maximum. Applications requiring operation above 85°C cannot use these substitutes. The Crouzet 83161806 extends to 150°C, suitable for elevated-temperature environments.

Q: Can LS0851500F250C1A be used in applications requiring 600mA DC operation?

A: No DC current rating is provided for the E-Switch LS0851500F250C1A. The original AM51110C43N-A supports 600mA DC at 125V. For DC applications, TFCGK6VP0040C is the only substitute with specified DC performance (500mA at 125V DC), though this is reduced from the original 600mA.