KSL1M210 Equivalent & Substitute Parts Reference

Part Overview

The KSL1M210 is a tactile switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.05A at 32VDC. This component features top actuation, through-hole mounting, and a grounding pin. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component sourcing.

Substiute Parts

KSL1M210

C&KIn Stock: 780KSL1M210 Datasheet

Current PartRFQ

TL6100DF160QP

E-SwitchIn Stock: 4546TL6100DF160QP Datasheet

SimilarRFQ

TL6100DF300QP

E-SwitchIn Stock: 4627TL6100DF300QP Datasheet

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TL6105DF160QP

E-SwitchIn Stock: 1314TL6105DF160QP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KSL1M210 is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO
• Switch Function: Must be Off-Mom (Momentary)
• Mounting Type: Must be Through Hole
• Actuator Orientation: Must be Top Actuated
• Termination Style: Must be PC Pin
• Contact Current Rating: Must support minimum 0.05A
• Contact Voltage Rating: Must support minimum 32VDC
• Switch Travel: 0.50mm nominal
• Mechanical Life: Minimum 500,000 cycles

The three E-Switch alternatives listed (TL6100DF160QP, TL6100DF300QP, TL6105DF160QP) meet the core functional requirements of SPST-NO momentary operation with through-hole PC pin termination and top actuation. However, each substitute presents distinct trade-offs in voltage rating, operating force, and mechanical durability that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

TL6105DF160QP is the preferred substitute when voltage rating compatibility is the primary constraint. This part supports 50VDC, exceeding the KSL1M210's 32VDC rating, and includes a grounding pin matching the original design. The reduced switch travel (0.25mm versus 0.50mm) and lower mechanical life (300,000 cycles) represent functional trade-offs that must be evaluated against application tactile feedback and cycle count requirements. This part is ROHS3 compliant and actively manufactured.

TL6100DF160QP is suitable for applications where voltage requirements do not exceed 12VDC. This substitute offers extended mechanical life (1,000,000 cycles) compared to the original specification and maintains the 0.50mm switch travel. Operating force (160gf) is slightly elevated relative to the KSL1M210 (130gf). ROHS3 compliance and active production status support long-term availability.

TL6100DF300QP is applicable only in low-voltage circuits (12VDC maximum) where higher actuation force (300gf) is acceptable. Mechanical life matches the original specification at 500,000 cycles. This option is not recommended for designs requiring the original 32VDC rating or lower operating force profiles.

All three E-Switch alternatives are actively manufactured and ROHS3 compliant, addressing the obsolescence and regulatory compliance limitations of the original KSL1M210.

Frequently Asked Questions (FAQ)

Q: Can TL6100DF160QP or TL6100DF300QP be used in a 32VDC circuit?

A: No. Both TL6100 series parts are rated for 0.05A @ 12VDC maximum. Using these components in a 32VDC circuit exceeds their contact voltage rating and creates risk of contact failure or arcing.

Q: What is the voltage advantage of TL6105DF160QP over the TL6100 series?

A: TL6105DF160QP is rated for 0.05A @ 50VDC, providing 18VDC margin above the original KSL1M210 specification of 32VDC. This higher rating accommodates transient voltage spikes and provides design headroom in high-voltage applications.

Q: How does switch travel affect tactile feedback?

A: Switch travel is the distance the actuator moves before electrical contact closes. The KSL1M210 and TL6100 series specify 0.50mm travel, while TL6105DF160QP specifies 0.25mm. Shorter travel produces faster actuation response but may reduce tactile feedback perception.

Q: Are the outline dimension differences significant for PCB layout?

A: The KSL1M210 measures 7.40mm x 7.40mm while all E-Switch alternatives measure 7.20mm x 7.20mm. This 0.20mm reduction per side is typically accommodated within standard PCB footprint tolerances. Actuator height increases from 9.90mm to 10.00mm, a 0.10mm difference that does not typically impact enclosure clearance in standard designs.

Q: What does "Process Sealed" mean on the TL6100 series?

A: Process Sealed indicates the switch contacts are sealed during manufacturing to prevent contamination. This differs from the KSL1M210's IP40 ingress protection rating, which specifies environmental sealing. Both approaches provide contact protection; Process Sealed is a manufacturing specification while IP40 is an operational environmental rating.

Q: Why does TL6105DF160QP have lower mechanical life than the original?

A: TL6105DF160QP specifies 300,000 cycles versus the KSL1M210's 500,000 cycles. This reduced cycle rating reflects the design trade-off of achieving higher voltage capability (50VDC) and shorter switch travel (0.25mm) within the same physical package. Applications requiring extended cycle life should prioritize TL6100DF160QP (1,000,000 cycles) if voltage requirements permit 12VDC operation.

Q: Are all three E-Switch alternatives pin-compatible with the KSL1M210?

A: Yes. All three alternatives use PC pin termination in through-hole configuration with top actuation, matching the KSL1M210 footprint requirements. Minor outline dimension variations (7.20mm versus 7.40mm) do not affect pin compatibility or standard PCB footprint accommodation.