Suntan Tactile Switch Selection Guide｜6×6mm & Waterproof Models

Correct tactile switch selection affects user feel, product durability, assembly tolerance and PCB layout freedom. Suntan’s 6×6 mm tactile switches (TSS-TC series), SMD tactile switches (TSS-TD series) and waterproof tactile switch options cover heights from 3.8 mm to 15 mm, operating forces from 100 gf to 250 gf, and mounting styles suited for HMI panels, consumer electronics, instruments and compact devices.

1. Why Engineers Choose Suntan 6×6 mm & Waterproof Tactile Switches

When engineers search for a 6×6 mm tactile switch or an IP-rated waterproof tact switch, they usually need a stable footprint, predictable click feeling and long-term availability. Suntan’s TSS-TC and TSS-TD series use a common travel of 0.25 ± 0.1 mm and a DC 12 V 50 mA rating, making it easier to standardize one tact switch family across several product lines.

2. Key Differences at a Glance

3. Technical Parameters (All Values from Datasheets)

3.1 Actuator Heights

• TSS-TC-0010: 3.8 mm height (low-profile 6×6 mm tact switch).

• TSS-TC-12XA: 4.3–15 mm full height range for deep panels and front covers.

• TSS-TD-03XG: 4.3 / 5 / 7 / 7.3 / 8 / 9.5 / 12.5 mm, SMD for reflow.

• TSS-TD-06XG: 4.3 / 5 / 7 / 8 / 9.5 / 12.5 mm, SMD general purpose.

3.2 Operating Force Codes

• 100 ± 30 gf (T)

• 130 ± 30 gf (V)

• 160 ± 50 gf (X) — standard click for many HMI designs.

• 170 ± 50 gf (W)

• 190 ± 50 gf (Y)

• 250 ± 100 gf (Z) — firm, high-force tact switch feel.

3.3 Travel & Electrical Rating

• Travel: 0.25 ± 0.1 mm
• Rating: DC 12 V 50 mA
• Contact resistance: 100 mΩ max
These values are common across the TSS-TC and TSS-TD families, making cross-selection easier.

3.4 Mechanical Life

• Standard life: 50 000–100 000 cycles, depending on model and force code.
• Higher-cycle versions can be evaluated on request with Suntan engineering.

Product Preview · Model Highlights

Representative tactile switch models from Suntan’s THT, SMD and right-angle families, helping engineers quickly visualize available configurations before reviewing the detailed guide.

4. Model-by-Model Selection Guide

4.1 TSS-TC-0010

• 6×6 mm THT tactile switch.

• 3.8 mm low profile height.

• Typical forces: X / Z.

4.2 TSS-TC-12XA

• 6×6 mm THT tactile switch with extended height range 4.3–15 mm.

• Suitable when front panel thickness varies but the same footprint is required.

4.3 TSS-TC-12XT

• Metal or plastic cover versions.

• Compatible with X / Z force codes for different click feelings.

4.4 TSS-TD-03XG

• SMD tactile switch designed for reflow soldering.

• Height 4.3–12.5 mm, wide force range 100–250 gf.

4.5 TSS-TD-06XG

• SMD 6×6 mm tactile switch for general-purpose designs.

• Height 4.3–12.5 mm, same force code system as TSS-TD-03XG.

5. Application Selection

TSS-TC (THT) — panel keys, industrial instruments, power boards and designs with through-hole assembly flow.

TSS-TD (SMD) — compact PCB layouts, consumer electronics, products assembled by reflow soldering.

Waterproof tactile switch models — sealed devices, outdoor equipment and environments with moisture exposure.

6. Application Video

7. Frequently Asked Questions

Q1. How to choose operating force?
Use 100–130 gf for light keys, 160–190 gf for standard keys and around 250 gf for a firm, high-force click.

Q2. Do all models share the same travel?
Yes. All Suntan 6×6 mm and SMD tactile switch series in this guide use 0.25 ± 0.1 mm travel.

Q3. Which series is better for compact PCB design?
The TSS-TD SMD tactile switch series is optimized for reflow and high-density board layouts.

Q4. Are waterproof tactile switches available?
Yes. Suntan also offers waterproof and sealed tactile switch options for outdoor and high-humidity applications.