D6R10 LFS Equivalent & Substitute Parts

Part Overview

The D6R10 LFS is a pushbutton switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with keyswitch functionality. This through-hole mounted component is rated for 100mA DC at 32V and features tactile feedback with a gray round button actuator. The part is currently listed as obsolete, making identification of suitable substitutes essential for ongoing design support and component procurement.

Substiute Parts

D6R10 LFS

C&KIn Stock: 1172D6R10 LFS Datasheet

Current PartRFQ

D6R10 F1 LFS

C&KIn Stock: 8981D6R10 F1 LFS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D6R10 LFS is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPST-NO topology must be maintained
• Electrical Ratings: Current rating of 100mA DC and voltage rating of 32V DC are non-negotiable
• Mounting and Termination: Through-hole mounting with PC pin termination required
• Switch Characteristics: Momentary (Off-Mom) function with keyswitch type
• Environmental Compliance: RoHS compliance and MSL 1 rating must be preserved
• Mechanical Performance: Tactile feedback feature and 250,000 cycle electrical life specification

The D6R10 F1 LFS qualifies as a direct substitute based on identical electrical specifications, matching mechanical characteristics, and equivalent environmental ratings. The primary distinction is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The D6R10 F1 LFS is the direct equivalent for the obsolete D6R10 LFS. Selection of the substitute part is justified on the following grounds:

• Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity
• Electrical Equivalence: All electrical parameters—current rating, voltage rating, and circuit configuration—are identical
• Compliance Alignment: Both parts maintain RoHS compliance with enhanced ROHS3 certification on the substitute, indicating improved regulatory standing
• Environmental Specifications: Identical operating temperature range and MSL rating ensure equivalent performance in target applications
• Mechanical Compatibility: Matching mounting type, termination style, and actuator characteristics enable direct PCB-level substitution

The packaging difference (bulk versus tray) does not affect electrical or mechanical compatibility and represents a procurement consideration rather than a technical constraint.

Frequently Asked Questions (FAQ)

Q: Can the D6R10 F1 LFS be used as a direct replacement for the D6R10 LFS on existing PCBs?

A: Yes. The D6R10 F1 LFS is electrically and mechanically equivalent. Both parts share identical through-hole PC pin termination, matching footprints, and equivalent electrical ratings. No PCB redesign is required.

Q: What is the significance of the "F1" designation in the substitute part number?

A: The "F1" designation indicates a variant within the D6 series. This variant maintains all critical electrical and mechanical specifications while reflecting a change in product status from obsolete to active production.

Q: Does the packaging difference between bulk and tray affect compatibility?

A: No. Packaging format is a supply chain and handling consideration only. The electrical and mechanical characteristics of the component itself remain unchanged. Tray packaging may offer improved handling and traceability benefits.

Q: Are there any compliance differences between the two parts?

A: Both parts are RoHS compliant. The substitute part carries ROHS3 certification, representing an enhanced compliance designation. This does not introduce incompatibility; it reflects improved regulatory alignment.

Q: What parameters must remain constant for a part to qualify as a substitute for the D6R10 LFS?

A: Critical parameters include SPST-NO circuit configuration, 100mA DC current rating, 32V DC voltage rating, through-hole mounting, PC pin termination, momentary switch function, and 250,000 cycle electrical life specification. Deviation in any of these parameters disqualifies a part as a direct substitute.