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C&K 7103P3DCRI Toggle Switch SPDT Equivalent & Substitute Parts
Part Overview
The C&K 7103P3DCRI is an active-status toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This panel-mount switch features a flat anti-rotation actuator and is designed for On-Off-On switching applications. The device is potted with epoxy for environmental protection and operates across -30°C to 85°C. Finding equivalent or substitute parts may be necessary due to inventory constraints, supply chain considerations, or specific application requirements while maintaining identical electrical and mechanical performance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 7103P3DCRI |
| Manufacturer | C&K |
| Circuit Configuration | SPDT |
| Switch Function | On-Off-On |
| Current Rating | 5A (AC/DC) |
| Voltage Rating - AC | 120V |
| Voltage Rating - DC | 28V |
| Mounting Type | Panel Mount |
| Panel Cutout Dimensions | Circular - 6.35mm Dia |
| Bushing Thread | 1/4-40 |
| Termination Style | PC Pin |
| Operating Temperature Range | -30°C ~ 85°C |
| Electrical Life | 40,000 Cycles |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
The E-Switch 100SP3T1B1M2QEH qualifies as a direct substitute for the C&K 7103P3DCRI based on the following critical parameters:
- Electrical Equivalence: Both parts maintain identical SPDT circuit configuration with On-Off-On switching function, 5A current rating at AC/DC, 120V AC and 28V DC voltage ratings
- Mechanical Compatibility: Both feature panel-mount installation with circular 6.35mm diameter cutout and 1/4-40 bushing thread, enabling direct mechanical interchange
- Termination Compatibility: Both use PC Pin termination style for identical PCB mounting
- Environmental Performance: Both operate across -30°C to 85°C temperature range with 40,000 electrical life cycles
- Regulatory Compliance: Both are ROHS3 compliant with EAR99 ECCN classification
The primary differences are the actuator type (flat anti-rotation versus standard round) and specific potting/sealing method, which do not affect functional substitution within the specified electrical and mechanical parameters.
Parameter Comparison
| Parameter | C&K 7103P3DCRI | E-Switch 100SP3T1B1M2QEH |
|---|---|---|
| Manufacturer | C&K | E-Switch |
| Circuit Configuration | SPDT | SPDT |
| Switch Function | On-Off-On | On-Off-On |
| Current Rating (Amps) | 5A (AC/DC) | 5A (AC/DC) |
| Voltage Rating - AC | 120V | 120V |
| Voltage Rating - DC | 28V | 28V |
| Mounting Type | Panel Mount | Panel Mount |
| Panel Cutout Dimensions | Circular - 6.35mm Dia | Circular - 6.35mm Dia |
| Bushing Thread | 1/4-40 | 1/4-40 |
| Termination Style | PC Pin | PC Pin |
| Operating Temperature Range | -30°C ~ 85°C | -30°C ~ 85°C |
| Electrical Life | 40,000 Cycles | 40,000 Cycles |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active |
| Actuator Type | Flat Anti-Rotation | Standard Round |
| Actuator Length | 13.21mm | 10.41mm |
| Actuator Material | Brass, Chrome Plated | Brass, Chrome Plated |
| Features | Epoxy Potted | Epoxy Sealed Terminals |
Engineering Selection Recommendations
Both the C&K 7103P3DCRI and E-Switch 100SP3T1B1M2QEH are active-status products with ROHS3 compliance and EAR99 ECCN classification. Selection between these parts should be based on:
- Actuator Geometry: The C&K part features a flat anti-rotation actuator at 13.21mm length, while the E-Switch part uses a standard round actuator at 10.41mm length. Panel design and operator interface requirements determine which actuator type is appropriate.
- Environmental Sealing: The C&K part uses epoxy potting; the E-Switch part uses epoxy sealed terminals. Both provide equivalent environmental protection within the specified operating parameters.
- Availability: Both parts are in active production with documented inventory. Selection may depend on supply chain and lead-time considerations.
- Regulatory Status: The C&K part is REACH Affected; the E-Switch part is REACH Unaffected. Applications subject to REACH regulations should verify compliance requirements.
Frequently Asked Questions (FAQ)
Q: Can the E-Switch 100SP3T1B1M2QEH directly replace the C&K 7103P3DCRI in existing designs?
A: Yes, provided the panel cutout and actuator geometry accommodate the 10.41mm standard round actuator of the E-Switch part. The electrical and mechanical interface parameters are identical, enabling direct PCB and panel-mount substitution.
Q: What is the primary difference between these two toggle switches?
A: The actuator design differs: the C&K part has a flat anti-rotation actuator (13.21mm), while the E-Switch part has a standard round actuator (10.41mm). Both maintain identical electrical performance and panel mounting specifications.
Q: Are both parts suitable for the same voltage and current applications?
A: Yes. Both parts are rated for 5A at 120V AC and 28V DC, with identical operating temperature ranges (-30°C to 85°C) and electrical life (40,000 cycles).
Q: What are the packaging considerations for these parts?
A: Both parts are supplied in bulk packaging. The C&K part has 912 pieces in stock; the E-Switch part has 976 pieces in stock. Verify packaging requirements for your procurement process.
Q: Do both parts meet the same regulatory standards?
A: Both are ROHS3 compliant and classified as EAR99. The C&K part is REACH Affected; the E-Switch part is REACH Unaffected. Verify REACH compliance requirements for your specific application and region.
Q: What is the electrical life expectancy for these switches?
A: Both parts are rated for 40,000 electrical cycles, providing equivalent durability and reliability for On-Off-On switching applications.
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