Toggle Switch SPDT Panel Mount 7103SDCQE

Part Overview

The C&K 7103SDCQE is an active-status toggle switch with SPDT (Single Pole Double Throw) circuit configuration, designed for panel mount applications. This component operates at 5A (AC/DC) with voltage ratings of 120V AC and 28V DC, featuring a standard round actuator with non-illuminated design. The switch is specified for On-Off-On functionality with PC pin termination and a circular 6.35mm diameter panel cutout. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, manage inventory alternatives, and maintain design compatibility across production batches.

Substiute Parts

7103SDCQE

C&KIn Stock: 8757103SDCQE Datasheet

Current PartRFQ

1-1825137-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8451-1825137-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TE Connectivity ALCOSWITCH Switches part number 1-1825137-1 qualifies as a substitute based on the following critical parameters:

Electrical Compatibility: Both parts maintain identical SPDT circuit configuration, On-Off-On switch function, 5A current rating (AC/DC), 120V AC voltage rating, and 28V DC voltage rating.

Mechanical Compatibility: Both parts feature panel mount installation, standard round actuator type, non-illuminated design, PC pin termination, circular 6.35mm diameter panel cutout, and 1/4-40 bushing thread specification.

Environmental Specifications: Both parts operate across the identical temperature range of -30°C to 85°C.

Regulatory Compliance: Both parts meet ROHS3 compliance requirements and share the same ECCN (EAR99) and HTSUS (8536.50.9065) classifications.

Noted Differences: The substitute part features a slightly shorter actuator length (12.19mm versus 12.45mm), lower electrical life rating (6,000 cycles versus 40,000 cycles), nickel-plated brass actuator material (versus chrome-plated), and includes epoxy sealed terminals. The substitute is REACH Affected, whereas the main part is REACH Unaffected.

Parameter Comparison

Engineering Selection Recommendations

Both the C&K 7103SDCQE and TE Connectivity 1-1825137-1 are active-status products with ROHS3 compliance, making them suitable for current regulatory environments. The primary selection criterion depends on application-specific electrical life requirements. The C&K 7103SDCQE provides extended electrical life at 40,000 cycles, appropriate for high-cycle-count applications. The TE Connectivity substitute operates at 6,000 electrical cycles, suitable for moderate-duty applications. Both parts maintain identical electrical ratings, mechanical interfaces, and operating temperature specifications. REACH compliance status differs between the two parts and must be evaluated against supply chain and end-market requirements.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-1825137-1 directly replace the C&K 7103SDCQE in existing designs?

A: Direct mechanical and electrical replacement is possible due to identical panel cutout dimensions (6.35mm circular), bushing thread (1/4-40), circuit configuration (SPDT), current rating (5A AC/DC), and voltage ratings (120V AC / 28V DC). The 0.26mm difference in actuator length (12.19mm versus 12.45mm) must be evaluated for panel clearance in specific enclosure designs.

Q: What is the significance of the electrical life difference between these parts?

A: The C&K 7103SDCQE is rated for 40,000 electrical cycles, while the TE Connectivity substitute is rated for 6,000 cycles. This difference directly impacts component lifespan in applications with frequent switching operations. Applications requiring fewer than 6,000 switching cycles over the product lifetime can use either part. Applications exceeding 6,000 cycles should specify the C&K part.

Q: Are there packaging or MSL considerations for these parts?

A: Both parts are supplied in bulk packaging. The TE Connectivity substitute specifies Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: How do the actuator material differences affect performance?

A: The C&K part features chrome-plated brass actuator material, while the TE Connectivity substitute uses nickel-plated brass. Both materials provide corrosion resistance and durability. The TE Connectivity part includes epoxy sealed terminals as an additional feature. Material selection does not affect electrical performance within the specified operating parameters.

Q: What REACH compliance implications exist for these parts?

A: The C&K 7103SDCQE is REACH Unaffected, indicating no REACH substance of concern restrictions. The TE Connectivity 1-1825137-1 is REACH Affected, requiring compliance verification against specific end-market regulations. Supply chain and regulatory requirements must determine part selection when REACH status is a design constraint.