C&K 7103P3HCQE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7103P3HCQE is a panel-mount toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This switch features an On-Off-On function with a flat anti-rotation actuator and is designed for applications requiring reliable switching in industrial and commercial environments. The part is currently active in production with 748 units in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design requirements allow for compatible alternatives that meet or exceed the original specifications.

Substiute Parts

7103P3HCQE

C&KIn Stock: 8557103P3HCQE Datasheet

Current PartRFQ

M2013SS1W03

NKK SwitchesIn Stock: 1009M2013SS1W03 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7103P3HCQE is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Off-On
• Mounting type: Panel Mount
• Termination style: PC Pin
• Bushing thread: 1/4-40
• Operating temperature range: -30°C to 85°C or wider

Allowable Variation Parameters:

• Current rating: Equal to or greater than 5A AC
• Voltage rating (AC): Equal to or greater than 120V
• Voltage rating (DC): Equal to or greater than 28V
• Panel cutout diameter: Within mechanical tolerance (±0.5mm acceptable for panel mount applications)
• Actuator type: Functionally equivalent designs
• Electrical life: Equal to or greater than 40,000 cycles

The NKK Switches M2013SS1W03 qualifies as a substitute based on these criteria, with higher current and voltage ratings in AC operation, equivalent DC voltage capability, and compatible mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The NKK Switches M2013SS1W03 provides functional equivalence for AC-dominant applications within the specified voltage and current envelope. Both parts maintain ROHS3 compliance and identical operating temperature ranges, supporting regulatory consistency in design implementations.

The M2013SS1W03 demonstrates superior AC current and voltage ratings, making it suitable for applications where DC current requirements do not exceed 3A. The 0.15mm panel cutout diameter difference is mechanically acceptable for standard panel mount installations.

The reduced electrical life specification (25,000 cycles versus 40,000 cycles) and obsolete product status of the M2013SS1W03 should be evaluated against application duty cycle requirements and long-term supply chain considerations. For applications requiring the full 40,000-cycle electrical life or extended product availability, the C&K 7103P3HCQE remains the preferred selection.

Frequently Asked Questions (FAQ)

Q: Can the NKK M2013SS1W03 replace the C&K 7103P3HCQE in all applications?

A: The M2013SS1W03 is suitable for AC applications and DC applications not exceeding 3A. If your application requires 5A DC operation, the original C&K part is required. Additionally, applications with duty cycles approaching 40,000 cycles should use the C&K part due to its higher electrical life rating.

Q: What is the significance of the panel cutout diameter difference (6.35mm vs 6.50mm)?

A: The 0.15mm difference is within standard mechanical tolerances for panel mount switches. Both parts use identical 1/4-40 bushing threads and will mount securely in standard panel cutouts designed for either specification.

Q: Why is the M2013SS1W03 listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. While 907 units are currently in inventory, future availability cannot be guaranteed. The C&K 7103P3HCQE, with active status, provides assured long-term supply chain continuity.

Q: Are both parts RoHS compliant?

A: Yes, both the C&K 7103P3HCQE and NKK M2013SS1W03 are ROHS3 compliant, supporting equivalent regulatory requirements in EU and equivalent markets.

Q: What determines whether a toggle switch can substitute for another?

A: Substitution requires matching circuit configuration (SPDT), switch function (On-Off-On), mounting type (Panel Mount), termination style (PC Pin), and mechanical specifications (bushing thread, panel cutout). Current and voltage ratings of the substitute must equal or exceed the original part. Operating temperature range and electrical life should meet or exceed application requirements.