D6R90 LFS Equivalent & Substitute Parts

Part Overview

The D6R90 LFS is a pushbutton switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a keyswitch type actuator. This through-hole mounted component is rated for 0.1A at 32V DC and features tactile feedback with a black round button actuator. The D6R90 LFS is currently listed as obsolete, making identification of suitable substitute parts essential for ongoing design support and component procurement.

Substiute Parts

D6R90 LFS

C&KIn Stock: 1123D6R90 LFS Datasheet

Current PartRFQ

D6R90 F1 LFS

C&KIn Stock: 1063D6R90 F1 LFS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D6R90 LFS is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPST-NO)
• Switch function (Off-Mom momentary operation)
• Current and voltage ratings (100mA DC, 32V DC)
• Mounting method (Through Hole)
• Actuator type and form factor (Round Button)
• Termination style (PC Pin)
• Operating temperature range (-20°C to 85°C)
• Electrical life specification (250,000 Cycles)
• Environmental compliance (RoHS, REACH)

The D6R90 F1 LFS meets all these criteria and is classified as a direct substitute within the D6 series.

Parameter Comparison

Engineering Selection Recommendations

The D6R90 F1 LFS is the direct functional equivalent of the D6R90 LFS. Both components share identical electrical specifications, mechanical form factors, and environmental operating parameters. The primary distinction is product status: the D6R90 LFS is obsolete, while the D6R90 F1 LFS maintains active production status with current inventory availability.

The D6R90 F1 LFS carries ROHS3 compliance, which supersedes the RoHS compliance of the original part, providing enhanced environmental standards. Both parts maintain REACH unaffected status and identical ECCN and HTSUS classifications.

Packaging differs between the two parts (bulk versus tray), which may affect procurement logistics but does not impact functional or electrical compatibility. Component selection should prioritize the D6R90 F1 LFS for new designs and ongoing production due to its active status and superior compliance certification.

Frequently Asked Questions (FAQ)

Q: Can the D6R90 F1 LFS be used as a direct replacement for the D6R90 LFS?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: SPST-NO circuit, 100mA DC at 32V, through-hole mounting, round button actuator, PC pin termination, and 250,000 cycle electrical life. The D6R90 F1 LFS is the active production equivalent.

Q: What is the difference between the two part numbers?

A: The D6R90 LFS is obsolete. The D6R90 F1 LFS is the current production variant within the same D6 series. The "F1" designation indicates a production revision. Electrical and mechanical specifications remain unchanged.

Q: Does packaging affect compatibility?

A: No. The D6R90 LFS ships in bulk packaging, while the D6R90 F1 LFS ships in tray packaging. This difference affects only procurement and handling logistics, not component function or electrical performance.

Q: Are there compliance differences?

A: Both parts are RoHS compliant and REACH unaffected. The D6R90 F1 LFS carries ROHS3 certification, which represents a more current compliance standard than the RoHS certification of the original part. This is a compatibility advantage.

Q: What is the electrical life specification?

A: Both parts are rated for 250,000 cycles of electrical life under the specified operating conditions (100mA DC, 32V DC, momentary operation).

Q: Can these parts be used in high-temperature applications?

A: Both parts operate within the temperature range of -20°C to 85°C. Applications requiring operation outside this range require alternative component selection.