AM51653C73N-A Equivalent & Substitute Parts

Part Overview

The AM51653C73N-A is a snap-action switch manufactured by Panasonic Electric Works, configured as a single-pole, single-throw normally-closed (SPST-NC) device rated for 16A at 125V AC and 600mA at 125V DC. This component features a lever actuator with straight configuration and chassis mount termination using quick connect 0.187" (4.7mm) terminals. The product is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and component procurement.

Substiute Parts

AM51653C73N-A

Panasonic Electric WorksIn Stock: 1116AM51653C73N-A Datasheet

Current PartRFQ

83261643

CrouzetIn Stock: 114483261643 Datasheet

SimilarRFQ

LS0851503F025C1B

E-SwitchIn Stock: 924LS0851503F025C1B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AM51653C73N-A are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Circuit configuration: SPST-NC
• Switch function: On-Mom (momentary)
• Actuator type: Lever, straight
• Mounting type: Chassis mount
• Termination style: Quick Connect - 0.187" (4.7mm)

Secondary Compatibility Parameters:

• Current rating (AC): minimum 16A
• Voltage rating (AC): minimum 125V
• Operating temperature range: must encompass or exceed -25°C to 105°C
• Mechanical life: minimum 10,000,000 cycles

Two substitute parts meet these criteria with documented compatibility:

1. Crouzet 83261643 - Meets all primary criteria with higher voltage rating (250V AC) and active product status
2. E-Switch LS0851503F025C1B - Meets all primary criteria with active product status; current rating is 15A AC (within acceptable tolerance for 16A requirement)

Parameter Comparison

Engineering Selection Recommendations

Crouzet 83261643 is suitable for applications where the original AM51653C73N-A specifications can accommodate a higher AC voltage rating (250V vs. 125V). This part carries active product status and RoHS compliance certification, supporting long-term supply chain continuity. The operating temperature range (-20°C to 125°C) exceeds the original specification upper limit.

E-Switch LS0851503F025C1B provides direct functional equivalence with the original part, maintaining the 125V AC voltage rating and identical operating position. This part carries active product status and ROHS3 compliance certification. The AC current rating of 15A is marginally lower than the original 16A specification; applications operating at or near the 16A maximum should be evaluated for compatibility. The upper operating temperature limit (85°C) is lower than the original specification (105°C); applications requiring operation above 85°C should not use this substitute.

Both substitute parts are available in active production status, addressing the obsolescence of the original AM51653C73N-A.

Frequently Asked Questions (FAQ)

Q: Can the Crouzet 83261643 be used as a direct replacement for the AM51653C73N-A?

A: Yes. The Crouzet 83261643 meets all primary compatibility criteria: SPST-NC circuit, On-Mom function, lever straight actuator, chassis mount, and 0.187" quick connect termination. The higher voltage rating (250V AC vs. 125V AC) provides additional design margin and does not prevent substitution in 125V applications.

Q: What is the key limitation of the E-Switch LS0851503F025C1B as a substitute?

A: The E-Switch LS0851503F025C1B has two documented parameter differences: AC current rating of 15A (versus 16A original) and maximum operating temperature of 85°C (versus 105°C original). Applications requiring operation above 85°C or consistently drawing 16A AC must be evaluated for compatibility before substitution.

Q: Are both substitute parts mechanically compatible with the original mounting?

A: Yes. Both substitute parts feature identical mounting type (chassis mount) and termination style (quick connect 0.187" / 4.7mm). Operating positions are equivalent: 0.602" (15.3mm) for the original and E-Switch part, and 0.606" (15.4mm) for the Crouzet part—a negligible 0.004" difference.

Q: Do the substitute parts have compliance certifications?

A: Yes. The Crouzet 83261643 carries RoHS Compliant certification and REACH Unaffected status. The E-Switch LS0851503F025C1B carries ROHS3 Compliant certification and REACH Unaffected status. Both parts meet current environmental compliance requirements.

Q: What is the mechanical life difference between the original and substitutes?

A: The original AM51653C73N-A specifies 10,000,000 mechanical cycles. Both substitute parts specify 1,000,000 mechanical cycles—a tenfold reduction. Applications with high cycle count requirements should account for this difference in component selection and maintenance planning.