E221SD1CLE Equivalent & Substitute Parts

Part Overview

The E221SD1CLE is a pushbutton switch manufactured by C&K, classified as a DPDT (Double Pole Double Throw) standard through-hole component with a 1A current rating at 120V AC and 28V DC. This switch features a round plunger actuator with white coloring and is terminated via PC pins. The product is currently obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system maintenance and new designs requiring compatible switching solutions.

Substiute Parts

E221SD1CLE

C&KIn Stock: 1052E221SD1CLE Datasheet

Current PartRFQ

E221SD1CRE

C&KIn Stock: 1088E221SD1CRE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the E221SD1CLE is determined by strict equivalence across the following critical parameters:

• Circuit configuration (DPDT)
• Switch function (On-Mom momentary operation)
• Current rating (1A AC/DC)
• Voltage ratings (120V AC / 28V DC)
• Mounting type (Through Hole)
• Actuator type and appearance (Round plunger, white)
• Termination style (PC Pin)
• Operating temperature range (-30°C to 75°C)
• Electrical life (60,000 cycles)

The E221SD1CRE qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters. The primary distinction is product status: E221SD1CLE is obsolete while E221SD1CRE is active.

Parameter Comparison

Engineering Selection Recommendations

The E221SD1CRE is the appropriate substitute for the obsolete E221SD1CLE. Both components maintain identical electrical specifications, mechanical configuration, and environmental operating parameters. The E221SD1CRE is currently in active production status, ensuring availability for procurement and supply chain continuity. Both parts meet RoHS compliance requirements and carry MSL 1 moisture sensitivity classification, indicating no special storage or handling precautions are required. Selection of E221SD1CRE eliminates obsolescence risk while maintaining full functional and physical compatibility with existing circuit designs and PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can E221SD1CRE be used as a direct replacement for E221SD1CLE in existing designs?

A: Yes. The E221SD1CRE is electrically and mechanically identical to the E221SD1CLE across all specified parameters. No circuit modifications or PCB layout changes are required.

Q: What is the primary reason for substitution?

A: The E221SD1CLE is obsolete. The E221SD1CRE is the active equivalent from the same manufacturer and series, ensuring continued availability and supply chain reliability.

Q: Are there any differences in compliance or certifications?

A: Both parts are RoHS compliant and carry identical moisture sensitivity levels. The E221SD1CLE is ROHS3 compliant while the E221SD1CRE is RoHS compliant. Both meet regulatory requirements for their respective product statuses.

Q: Will the through-hole mounting and PC pin termination remain the same?

A: Yes. Both components use identical through-hole mounting and PC pin termination, ensuring compatibility with existing PCB designs without modification.

Q: Are the electrical ratings identical?

A: Yes. Both parts are rated for 1A at 120V AC and 28V DC with DPDT momentary operation and 60,000 cycle electrical life.