BONSDA BSD1511F01S38 Mechanical Switch | 15.6mm Brown Tactile Silent 50gf

The BONSDA BSD1511F01S38 is a professional-grade mechanical shaft (keyboard switch) engineered to deliver the perfect union of definitive tactile feedback and exceptionally quiet operation. Featuring a distinctive brown POM stem, this switch provides a clear, gentle tactile bump at 50±10gf (Tactile Force) for satisfying typing confirmation, while its optimized internal design ensures operation at a low noise level of ≤40dB. It is the ideal core component for environments—such as open offices, libraries, control rooms, and shared workspaces—where both precise haptic feedback and acoustic discretion are critical requirements.

This mechanical shaft is built for uncompromising durability and reliability in demanding applications. It boasts an industry-leading mechanical life of 80 million keystrokes and is rated IP54 for dust and water splash resistance. The internal dust-proof BOX structure and 24K gold cross-point contacts guarantee stable electrical performance, with a contact resistance of ≤200 mΩ, ensuring long-term signal integrity and preventing chatter over its entire lifespan. The mechanical profile is precisely tuned, with an actuation force of 45±15gf and a total travel of 3.60±0.4mm (actuation at 2.0±0.4mm), offering a responsive, consistent, and fatigue-resistant typing experience.

With standard MX-style “+” cross stem compatibility, it seamlessly works with virtually all MX keycaps. Its standard 3-pin/5-pin PCB mounting design makes it a straightforward drop-in upgrade or original component for a wide range of devices. The BSD1511F01S38 excels as the key mechanism in computer and gaming keyboards, POS systems/cash registers, industrial HMI panels, and custom keyboard builds that demand a reliable, quiet, and high-feedback switch. For engineers, OEMs, and enthusiasts seeking a mechanical shaft that masterfully balances silent operation with a tangible tactile bump, the BSD1511F01S38 delivers proven, professional-grade performance.