KST241G Equivalent & Substitute Parts

Part Overview

The KST241G 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, surface mount termination, and is designed for applications requiring momentary switching functionality. The KST241G is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity.

Substiute Parts

KST241G

C&KIn Stock: 875KST241G Datasheet

Current PartRFQ

KST241GLFS

C&KIn Stock: 3878KST241GLFS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KST241G is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPST-NO topology must be maintained
• Contact Rating: 0.05A @ 32VDC electrical specification
• Mounting Type: Surface mount requirement
• Actuator Orientation: Top actuated design
• Physical Dimensions: 6.20mm x 6.20mm outline and 5.00mm vertical height
• Mechanical Characteristics: 350gf operating force and 1.30mm switch travel
• Termination Style: Gull wing leads for PCB compatibility
• Temperature Range: -40°C to 85°C operational envelope

The KST241GLFS meets all these criteria and is classified as a direct substitute within the KST series family.

Parameter Comparison

Engineering Selection Recommendations

The KST241GLFS is the direct functional equivalent of the obsolete KST241G. Both components share identical electrical and mechanical specifications across all critical parameters. The primary distinctions are:

Product Status: The KST241GLFS maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete KST241G.

Regulatory Compliance: The KST241GLFS achieves RoHS3 compliance, whereas the KST241G is RoHS non-compliant. This compliance improvement aligns with current environmental and regulatory requirements for electronic components.

Packaging Format: The KST241GLFS is supplied in Tape & Reel (TR) format, which differs from the bulk packaging of the KST241G. This packaging difference does not affect electrical or mechanical compatibility but may influence procurement and assembly workflows.

For applications currently utilizing the KST241G, direct substitution with the KST241GLFS is supported without circuit redesign or PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can the KST241GLFS be used as a direct replacement for the KST241G without PCB modifications?

A: Yes. The KST241GLFS maintains identical physical dimensions (6.20mm x 6.20mm outline, 5.00mm actuator height), termination style (gull wing), and mounting type (surface mount). No PCB layout changes are required.

Q: What are the electrical differences between KST241G and KST241GLFS?

A: There are no electrical differences. Both components feature identical SPST-NO circuit configuration, 0.05A @ 32VDC contact rating, 350gf operating force, 1.30mm switch travel, and -40°C to 85°C operating temperature range.

Q: Does the RoHS3 compliance of KST241GLFS affect its electrical performance?

A: No. RoHS3 compliance reflects material composition and manufacturing standards but does not alter electrical or mechanical performance characteristics. The KST241GLFS maintains all functional specifications of the KST241G.

Q: What is the impact of Tape & Reel packaging on component compatibility?

A: Tape & Reel packaging affects procurement and assembly processes but does not impact electrical or mechanical compatibility. The component itself remains identical to bulk-packaged versions.

Q: Are there any mechanical life or durability differences between these parts?

A: No. Both components specify 100,000 mechanical cycles and IP40 ingress protection. Durability and reliability characteristics are equivalent.

Q: Can the KST241GLFS be used in applications originally designed for KST241G?

A: Yes. Full functional equivalence across all critical parameters supports direct substitution in existing designs without circuit or layout modifications.