HMX Siliworks × Sonja HC Linear Switches

This linear switch suits users who want a heavier, vintage-inspired typing experience with pronounced feedback and sound. It fits typists or enthusiasts who prefer a firm bottom-out feel and a textured housing that adds character to keystrokes. It is less ideal for those seeking ultra-smooth or quiet operation.

Feel & Sound

• The switch offers a weighty, linear feel with a firm spring that delivers a confident bottom-out thock.
• Textured housing creates a subtle scratchiness, adding tactile character without harshness.
• Sound profile is more aggressive and expressive than typical linear switches, providing noticeable auditory feedback.

Actuation Characteristics

• Actuation force is relatively high, requiring deliberate key presses that reduce accidental inputs.
• Pre-travel and total travel are close to standard mechanical switch distances, supporting full key travel.
• Rail bottom-out design influences the feel of the keypress bottoming out, emphasizing a solid end stroke.

Build Quality

• Housing is made from modified PA66 with textured top and bottom surfaces to enhance tactile feedback.
• Stem is POM, a durable material that contributes to smooth stem movement despite the textured housing.
• Spring and leaf components are factory-lubed with GPL 105/205 mix, reducing friction internally while the housing remains unlubed to preserve scratchiness.

Trade-offs

• Dry housing and textured surfaces create intentional scratchiness, which may feel rough or noisy to users preferring smoothness.
• Higher bottom-out force and aggressive sound profile can be fatiguing during long typing sessions or in quiet environments.
• Factory lube is limited to springs and leaves; additional lubing may be needed to reduce scratchiness if undesired.

Use Cases

• Well suited for vintage-inspired builds where tactile presence and sound are valued over smooth neutrality.
• Good for typists who want clear feedback and a heavier keypress feel.
• Less ideal for gaming or office use where quieter, lighter, or smoother switches are preferred.