E201SD1CKE Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The E201SD1CKE is a through-hole mounted toggle switch manufactured by C&K, featuring DPDT (Double Pole Double Throw) circuitry with On-On switching function. This component is rated for 0.4VA at 20V AC/DC with a standard round actuator and epoxy sealed terminals for IP57 ingress protection. The E201SD1CKE is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this legacy component is specified.

Substiute Parts

E201SD1CKE

C&KIn Stock: 851E201SD1CKE Datasheet

Current PartRFQ

E201SD1CPE

C&KIn Stock: 1040E201SD1CPE Datasheet

DirectRFQ

E201SD1CQE

C&KIn Stock: 5026E201SD1CQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the E201SD1CKE are identified based on strict electrical and mechanical parameter compatibility within the C&K E-series toggle switch family. The substitution logic is organized into two categories:

Direct Functional Equivalent (E201SD1CPE): This substitute maintains identical electrical specifications (0.4VA at 20V AC/DC), circuit configuration (DPDT On-On), mechanical form factor (through-hole, standard round actuator, 12.70mm length), and environmental ratings (IP57, -30°C to 85°C). The primary distinction is product status: E201SD1CPE is active production, whereas E201SD1CKE is obsolete. Both share identical base product number E201SD and termination style (PC Pin).

Higher-Rated Alternative (E201SD1CQE): This substitute shares identical mechanical and environmental characteristics (through-hole mounting, standard round actuator, 12.70mm length, IP57 rating, -30°C to 85°C operating range, 40,000 cycle electrical life) but operates at elevated electrical specifications (7.5A at 125V AC / 28V DC). This part is suitable for applications requiring higher power handling capacity while maintaining the same physical footprint and environmental sealing.

Key Parameters Determining Substitution:

• Circuit configuration (DPDT)
• Switch function (On-On)
• Mounting type (Through Hole)
• Actuator type and length (Standard Round, 12.70mm)
• Termination style (PC Pin)
• Ingress protection rating (IP57)
• Operating temperature range (-30°C to 85°C)
• Base product series (E201SD)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (E201SD1CPE): Select this substitute when the application requires identical electrical performance (0.4VA at 20V AC/DC) and the design is not constrained by component availability. E201SD1CPE is the preferred choice for new designs and production runs due to active product status and ROHS3 compliance certification. This part maintains full electrical and mechanical compatibility with the obsolete E201SD1CKE while offering improved regulatory compliance and supply chain continuity.

For Higher Power Applications (E201SD1CQE): Select this substitute when the application can accommodate elevated electrical ratings (7.5A at 125V AC / 28V DC) without design modification. E201SD1CQE is suitable for applications where the original 0.4VA specification was conservative or where future design upgrades may require increased power handling. This part shares identical mechanical form factor and environmental protection, enabling direct physical substitution with electrical specification upgrade.

Compliance Considerations: Both active substitutes (E201SD1CPE and E201SD1CQE) carry ROHS3 compliance and REACH affected status, providing enhanced regulatory alignment compared to the obsolete E201SD1CKE. Both are classified under ECCN EAR99 and HTSUS 8536.50.9065.

Frequently Asked Questions (FAQ)

Q: Can E201SD1CPE be used as a direct replacement for E201SD1CKE?

A: Yes. E201SD1CPE maintains identical electrical specifications (0.4VA at 20V AC/DC), circuit configuration (DPDT On-On), mechanical form factor (through-hole, standard round actuator, 12.70mm), and environmental ratings (IP57, -30°C to 85°C). The primary difference is product status: E201SD1CPE is active production while E201SD1CKE is obsolete.

Q: What is the difference between E201SD1CPE and E201SD1CQE?

A: Both parts share identical mechanical and environmental characteristics. The distinction is electrical rating: E201SD1CPE is rated 0.4VA at 20V AC/DC, while E201SD1CQE is rated 7.5A at 125V AC / 28V DC. E201SD1CQE is suitable for applications requiring higher power handling within the same physical footprint.

Q: Are the packaging formats interchangeable?

A: Packaging format differs between substitutes (E201SD1CKE: not specified, E201SD1CPE: Bulk, E201SD1CQE: Tray). Packaging does not affect component functionality or electrical performance. Selection should be based on procurement and assembly process requirements.

Q: Do the substitute parts maintain the same mounting footprint?

A: Yes. All three parts (E201SD1CKE, E201SD1CPE, E201SD1CQE) feature identical through-hole mounting type, standard round actuator, and 12.70mm actuator length, ensuring direct physical substitution without PCB redesign.

Q: What is the electrical life specification for substitute parts?

A: All parts in this family maintain 40,000 cycle electrical life rating, indicating consistent mechanical durability across the substitution options.

Q: Are there compliance differences between the main part and substitutes?

A: Yes. E201SD1CKE carries RoHS Compliant status, while both E201SD1CPE and E201SD1CQE carry ROHS3 Compliant status with REACH affected designation. Both active substitutes provide enhanced regulatory compliance suitable for current manufacturing standards.