AM50645C33-A Equivalent & Substitute Parts

Part Overview

The AM50645C33-A is a snap action SPDT switch manufactured by Panasonic Electric Works, designed for chassis mount applications with 6A AC and 500mA DC current ratings at 125V. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance, repairs, and new designs requiring compatible functionality.

Substiute Parts

AM50645C33-A

Panasonic Electric WorksIn Stock: 961AM50645C33-A Datasheet

Current PartRFQ

LS0851505F160C2A

E-SwitchIn Stock: 922LS0851505F160C2A Datasheet

SimilarRFQ

LS085R105F160C1A

E-SwitchIn Stock: 852LS085R105F160C1A Datasheet

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TFS06SA1040C

C&KIn Stock: 1656TFS06SA1040C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM50645C33-A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Mom
• Mounting type: Chassis Mount
• Termination style: Quick Connect - 0.187" (4.7mm)
• Voltage rating: 125V AC minimum
• Current rating: 6A AC minimum
• Actuator type: Lever with Roller

Substitute Parts Identified:

TFS06SA1040C (C&K) - Direct functional equivalent with matching current and voltage ratings, identical termination style, and compatible mechanical specifications. Active product status with RoHS3 compliance.

LS0851505F160C2A (E-Switch) - Higher current rating (15A AC) with compatible voltage (125V AC), SPDT configuration, and chassis mount design. Termination differs at 0.250" (6.3mm), requiring mechanical evaluation. Active product status with RoHS3 compliance.

LS085R105F160C1A (E-Switch) - Lower voltage and current ratings (0.4VA at 20V) with matching termination style (0.187" 4.7mm) and SPDT configuration. Suitable only for low-voltage applications. Active product status with RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: TFS06SA1040C (C&K)

The TFS06SA1040C provides the closest functional match to the AM50645C33-A. Both components share identical current (6A AC) and voltage (125V AC) ratings, matching termination style (0.187" 4.7mm), and equivalent mechanical life (10,000,000 cycles). The TFS06SA1040C is an active product with RoHS3 compliance, ensuring long-term availability and regulatory alignment. The operating temperature range (-40°C to 85°C) is narrower than the original part but covers standard industrial applications. This substitute requires no mechanical redesign.

Secondary Recommendation: LS0851505F160C2A (E-Switch)

The LS0851505F160C2A is suitable for applications where higher current capacity (15A AC) provides design margin. This part maintains 125V AC voltage compatibility and SPDT configuration. The termination style differs (0.250" 6.3mm versus 0.187" 4.7mm), requiring mechanical evaluation of connector compatibility. The reduced mechanical life (1,000,000 cycles) and narrower temperature range (-25°C to 85°C) must be assessed against application requirements. RoHS3 compliance is confirmed.

Tertiary Recommendation: LS085R105F160C1A (E-Switch)

The LS085R105F160C1A is applicable only for low-voltage applications operating at 20V or below. The 0.4VA rating and reduced electrical life (50,000 cycles) make this substitute unsuitable for the original 125V, 6A AC specification. This part is recommended only when system redesign permits voltage reduction.

Frequently Asked Questions (FAQ)

Q: Can TFS06SA1040C directly replace AM50645C33-A without modification?

A: Yes. Both parts share identical current (6A AC), voltage (125V AC), and termination specifications (0.187" 4.7mm Quick Connect). No mechanical or electrical redesign is required. The TFS06SA1040C is an active product with confirmed RoHS3 compliance.

Q: What is the key difference between TFS06SA1040C and LS0851505F160C2A?

A: The TFS06SA1040C matches the original 6A AC rating and 0.187" termination, while the LS0851505F160C2A provides higher current capacity (15A AC) but uses a larger 0.250" termination connector. Connector compatibility must be verified before selection.

Q: Why is LS085R105F160C1A listed as a substitute if it has lower ratings?

A: The LS085R105F160C1A is included for applications where system voltage has been redesigned to 20V or lower. It maintains SPDT configuration, chassis mount design, and matching 0.187" termination. This part is not suitable for 125V applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. TFS06SA1040C, LS0851505F160C2A, and LS085R105F160C1A are all confirmed RoHS3 compliant. The original AM50645C33-A RoHS status is not specified.

Q: What is the impact of operating force differences between these parts?

A: The AM50645C33-A requires 60gf operating force, while substitutes range from 130gf to 160gf. Higher operating force may affect user interface feel and require greater actuator pressure. Mechanical integration must account for this difference.

Q: Can these parts be used interchangeably in existing designs?

A: TFS06SA1040C can be used interchangeably with no modifications. LS0851505F160C2A requires connector compatibility verification due to termination size difference. LS085R105F160C1A requires system voltage redesign and is not interchangeable for 125V applications.