KSB0M410 Equivalent & Substitute Parts

Part Overview

The KSB0M410 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 50VDC. This component features top actuation, through-hole mounting, and PC pin termination. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

KSB0M410

C&KIn Stock: 681KSB0M410 Datasheet

Current PartRFQ

KSF0M411 LFTR

C&KIn Stock: 4113KSF0M411 LFTR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KSB0M410 is determined by the following critical parameters:

• Circuit Configuration: Must remain SPST-NO
• Switch Function: Must remain Off-Mom (Momentary)
• Mounting Type: Must remain Through Hole
• Actuator Orientation: Must remain Top Actuated
• Termination Style: Must remain PC Pin
• Contact Rating Compatibility: Substitute voltage rating must be equal to or greater than 50VDC; substitute current rating must be equal to or greater than 0.05A
• Mechanical Compatibility: Outline dimensions and actuator height must accommodate PCB layout constraints
• Operating Force: Should remain within acceptable tactile feedback range (300gf nominal)

The KSF0M411 LFTR qualifies as a direct substitute based on matching circuit configuration, switch function, mounting type, actuator orientation, and termination style. However, the contact rating differs: the substitute is rated at 0.05A @ 32VDC, which represents a lower voltage specification than the original 50VDC rating.

Parameter Comparison

Engineering Selection Recommendations

The KSF0M411 LFTR is available as an active product from C&K with ROHS3 compliance, addressing the obsolescence of the KSB0M410. Selection of this substitute requires evaluation of the following circuit-level differences:

Voltage Rating Consideration: The substitute operates at a maximum of 32VDC compared to the original 50VDC specification. Applications operating at voltages exceeding 32VDC are not suitable for this substitute without circuit redesign.

Mechanical Life Consideration: The substitute provides 100,000 mechanical cycles versus the original 500,000 cycles. Applications requiring extended cycle life should account for this reduced specification.

Temperature Range Consideration: The substitute operates to 85°C maximum versus the original 90°C. Applications requiring operation above 85°C are not suitable for this substitute.

Compliance Advantage: The substitute achieves ROHS3 compliance, whereas the original is RoHS non-compliant. This is beneficial for new designs and regulatory requirements.

Ingress Protection Improvement: The substitute provides IP60 (dust tight) protection versus IP40 on the original, offering enhanced environmental sealing.

Frequently Asked Questions (FAQ)

Q: Can the KSF0M411 LFTR be used in applications originally designed for the KSB0M410?

A: Substitution is permissible only if the application operates at 32VDC or below, does not exceed 85°C, and does not require more than 100,000 mechanical cycles. Circuit voltage must be verified before substitution.

Q: What is the primary difference between these two parts?

A: The KSF0M411 LFTR has a lower voltage rating (32VDC vs. 50VDC), reduced mechanical life (100,000 vs. 500,000 cycles), and a lower maximum operating temperature (85°C vs. 90°C). The substitute offers improved ingress protection and RoHS3 compliance.

Q: Are the physical dimensions compatible?

A: The outline dimensions are nearly identical (7.40mm x 7.40mm vs. 7.40mm x 7.30mm), and both use through-hole PC pin termination. The actuator height of the substitute is specified at 2.60mm. PCB layout compatibility should be confirmed based on specific design constraints.

Q: What is the packaging difference?

A: The KSB0M410 is supplied in standard packaging, while the KSF0M411 LFTR is supplied in bulk packaging.

Q: Is the operating force the same?

A: Yes, both parts specify 300gf operating force, maintaining consistent tactile feedback characteristics.