D6F90 LFS Equivalent & Substitute Parts

Part Overview

The D6F90 LFS is a pushbutton switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a keyswitch design. This component is rated for 0.1A at 32V DC and features tactile feedback with a black round flush button actuator. The part is currently listed as obsolete, which necessitates identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production runs and field replacements.

Substiute Parts

D6F90 LFS

C&KIn Stock: 1014D6F90 LFS Datasheet

Current PartRFQ

D6F90 F1 LFS

C&KIn Stock: 56546D6F90 F1 LFS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The D6F90 F1 LFS qualifies as a direct equivalent substitute based on the following criteria:

Electrical Parameters Match:

• Identical circuit configuration (SPST-NO)
• Identical switch function (Off-Mom momentary operation)
• Identical current rating (100mA DC)
• Identical voltage rating (32V DC)
• Identical electrical life specification (250,000 cycles)

Mechanical Parameters Match:

• Identical mounting type (Through Hole)
• Identical actuator type (Round, Button, Flush)
• Identical termination style (PC Pin)
• Identical operating temperature range (-20°C to 85°C)

Compliance Parameters Match:

• RoHS compliant (ROHS3 Compliant status represents current RoHS standard)
• REACH unaffected status maintained
• Identical ECCN and HTSUS classifications

The primary distinction is product status: D6F90 LFS is obsolete, while D6F90 F1 LFS is active with significantly higher inventory availability (56,499 pcs vs. 969 pcs).

Parameter Comparison

Engineering Selection Recommendations

The D6F90 F1 LFS is the direct equivalent substitute for the obsolete D6F90 LFS. All electrical, mechanical, and functional parameters are identical. The substitute part carries active product status with ROHS3 compliance, representing the current manufacturing standard for this component family.

For new designs and production applications, the D6F90 F1 LFS should be specified. For field replacements of existing D6F90 LFS installations, the D6F90 F1 LFS provides identical electrical and mechanical performance with no design modifications required.

The packaging difference (Tray vs. Bulk) affects procurement and handling procedures but does not impact electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can D6F90 F1 LFS be used as a direct replacement for D6F90 LFS in existing designs?

A: Yes. All electrical ratings (100mA, 32V DC), circuit configuration (SPST-NO), mechanical specifications (Through Hole, PC Pin termination), and operating parameters (-20°C to 85°C, 250,000 cycle life) are identical. No circuit modifications or PCB redesign is required.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 represents the current RoHS 3 directive standard. Both designations indicate compliance with RoHS requirements. The D6F90 F1 LFS carries the current standard certification.

Q: Does the packaging change from Bulk to Tray affect electrical performance?

A: No. Packaging affects only procurement, storage, and handling procedures. Electrical and mechanical performance remains identical regardless of packaging format.

Q: Why is D6F90 LFS listed as obsolete?

A: Product obsolescence is determined by the manufacturer based on production decisions and market demand. The D6F90 F1 LFS represents the active equivalent within the same product series.

Q: Are there any mechanical differences between these parts?

A: No. Actuator type (Round, Button, Flush), color (Black), mounting type (Through Hole), and termination style (PC Pin) are identical across both part numbers.

Q: What is the inventory status for each part?

A: D6F90 LFS has 969 pcs available. D6F90 F1 LFS has 56,499 pcs available, providing significantly greater supply chain security for ongoing production requirements.