2×4 Tactile Switch DIP with Bracket — TS-1100H Snap-In Horizontal Tact Switch for Wearables, IoT & Ultra-Compact Consumer Electronics

The TS-1100H is a 2×4 tactile switch DIP with bracket engineered for next-generation electronics where every square millimeter of PCB real estate matters. At just 2 mm × 4 mm in body size, this TS-1100H snap-in horizontal tact switch represents one of the most compact tactile switch solutions available with through-hole mounting stability, enabling designers to create thinner, lighter products without sacrificing the satisfying click feedback users demand.

Unlike standard top-actuated tact switches that require vertical clearance above the PCB, this horizontal orientation allows the actuator to face sideways — ideal for edge-mounted buttons on wearable bands, side-panel controls on handheld devices, and ultra-slim remote controls where vertical height is severely constrained. The integrated metal mounting brackets provide snap-in mechanical retention to the PCB, ensuring the switch remains securely positioned during assembly, handling, and end-user operation.

With operating life options extending to 100,000 cycles, this switch outperforms many consumer-grade alternatives rated for only 30,000–50,000 cycles, reducing field failure rates and warranty claims in high-usage products. The dual force options (180 gf light touch or 260 gf firm actuation) allow engineers to optimize the user experience for their specific application — lighter force for frequent soft-key presses on fitness trackers, firmer force for deliberate power or reset buttons where accidental activation must be avoided.

Proper PCB design is critical to realizing the full performance potential of this 2×4 tactile switch DIP with bracket. Follow these engineering best practices to ensure reliable assembly, consistent actuation, and maximum switch life:

Footprint & Pad Design

• Follow the datasheet footprint exactly. The 2 mm × 4 mm body with integrated snap-in brackets requires precise slot and hole placement to ensure proper mechanical retention and electrical contact. The bracket legs typically require rectangular slots or notches in the PCB for snap-in engagement, while the two electrical pins pass through standard round holes.
• Maintain adequate solder mask clearance around each pad to prevent solder bridging between the closely spaced terminals. A minimum 0.2 mm solder mask web is recommended.
• Include polarity markings on the PCB silkscreen to indicate correct switch orientation, as the horizontal actuator must face the intended user access direction.

Mechanical & Bracket Integration

• Verify bracket slot dimensions. The metal snap-in brackets require precisely sized PCB slots (typically 0.8–1.0 mm wide) for secure retention. Slots that are too narrow prevent proper insertion; slots that are too loose compromise mechanical stability and may allow switch rotation during actuation.
• Ensure bracket leg coplanarity. During assembly, verify that both bracket legs seat flush against the PCB surface before soldering. Uneven seating can cause switch tilt, altering the actuation force and potentially causing binding or inconsistent tactile feel.
• Reserve side-actuation clearance. The horizontal actuator requires unobstructed space perpendicular to the PCB edge. Maintain a keep-out zone of at least 2.0 mm beyond the actuator face to accommodate button caps, overlay films, or direct finger access.

Signal Integrity & Electrical Design

• Route signal traces away from the actuator area to prevent accidental contact with conductive button caps or user fingers. The actuator housing is non-conductive, but ESD protection should still be considered for exposed switch interfaces.
• Use pull-up or pull-down resistors (typically 10 kΩ to 100 kΩ) on the switched signal line to ensure defined logic states when the switch is open. The TS-1100H is a normally-open (NO) SPST switch — it does not provide an internal pull resistor.
• Implement debounce in firmware or hardware. All mechanical switches exhibit contact bounce on closure. Implement a 10–50 ms software debounce routine or an RC debounce circuit (typically 10 kΩ + 100 nF) for clean digital edges.

Soldering Recommendations

• Wave soldering: Preheat to 100–130°C, wave temperature 250–260°C, dwell time 3–5 seconds. The metal brackets and through-hole pins provide excellent solder wetting and joint strength.
• Hand soldering: Use a 300–350°C iron tip, apply heat to the pad and lead simultaneously, and feed solder from the opposite side. Avoid prolonged heating that could deform the plastic actuator or housing.
• Reflow compatibility: While primarily designed for wave or hand soldering, the TS-1100H can survive limited reflow exposure if necessary for mixed-technology boards. Verify peak temperature and dwell time with the datasheet to prevent bracket annealing or base material deformation.

For the official mechanical drawing, recommended PCB footprint with bracket slots, and 3D STEP model, please contact our sales team or request the TS-1100H datasheet.

All Vistar tactile switches, including this 2×4 tactile switch DIP with bracket, are manufactured under rigorous quality management systems with comprehensive testing at every production stage:

• 100% electrical testing: Every switch is tested for contact resistance, insulation resistance, and dielectric withstand voltage before shipment
• Operating force verification: Statistical sampling ensures force values remain within ±30 gf tolerance across production lots
• Dimensional inspection: Automated optical measurement confirms body dimensions (2.0 × 4.0 mm), bracket leg coplanarity, pin spacing, and actuator protrusion height
• Bracket retention testing: Representative samples verify snap-in retention force and mechanical stability under insertion/extraction cycling
• Life testing: Representative samples undergo 100,000 cycle endurance testing to validate mechanical durability claims
• Environmental testing: Thermal cycling, humidity exposure, and salt spray testing confirm performance under harsh conditions
• RoHS & REACH compliance: Full material composition documentation available for regulatory compliance and export certification

Our manufacturing facilities maintain ISO 9001 quality management certification, ensuring traceability, consistency, and continuous improvement across all production batches. Certificate of Conformance (COC), material safety data sheets, and RoHS test reports are available upon request.

For comprehensive guidance on tactile switch selection, PCB layout best practices, and sourcing strategies, explore these authoritative resources:

• When laying out SMD tactile switches during PCB design, what are the key design considerations? — Essential reading for PCB designers covering footprint verification, mechanical clearance, signal routing, and common layout pitfalls that degrade switch reliability.
• The Best Introduction of SMD Tactile Switch — A comprehensive guide to SMD tactile switch specifications, types, applications, and procurement considerations for engineers and purchasing managers.
• Best Global Sourcing Guide for Tact Switch Manufacturers: In-Depth Analysis of Top Manufacturers and Strategic Selection Strategies — Strategic insights into the global tact switch supply chain, quality evaluation criteria, and manufacturer selection frameworks.

Browse our complete range of Tactile Switches for alternative profiles, force ratings, and mounting styles including SMD, top-actuated, waterproof, and illuminated options.