The series of products are small in size, shallow in installation depth and suitable for various compact panels and small spaces. There are threaded mounting holes on the back, which can be directly installed on the panel.
The HB series subminiature pushbuttons from NKK offer full‑face and spot illumination, a compact front‑panel design with 9 mm square or round bezels, and a latchdown feature that indicates circuit status. Options include super‑bright LEDs in white, green, blue, red, amber, and standard bright LEDs, as well as non‑illuminated models.
Technical data cover contact resistance, insulation resistance, mechanical and electrical life, operating force, travel dimensions, housing material, and environmental limits. The document also provides ordering examples, LED cap colors, mounting torque values, and assembly instructions such as cap removal and LED polarity.
| Maximum current rating | 0.1 A @ 30 V AC/DC |
|---|---|
| Contact resistance | ≤ 50 mΩ |
| Insulation resistance | ≥ 100 MΩ @ 500 V DC |
| Dielectric strength | ≥ 500 V AC for 1 min |
| Mechanical life | ≥ 100 000 operations |
| Electrical life | ≥ 50 000 operations |
| Total travel | 0.118 in (3.0 mm) |
| Housing material | Glass fiber reinforced polyamide |
| Contact material | Phosphor bronze with silver plating |
| Operating temperature range | -25 °C to +50 °C |
| Humidity rating | 90–95 % RH for 96 h @ 40 °C |
| Vibration rating | 10–55 Hz, 1.5 mm peak‑to‑peak |
| Shock rating | 50 g (490 m/s²) acceleration |
| Cap installation force | 9.8 N (2.2 lbf) |
| Maximum soldering temperature | 390 °C for 4 s |
The switches are rated for a maximum of 0.1 A at 30 V AC/DC.
The mechanical life is specified as at least 100 000 operations.
The latchdown feature provides an indication of circuit status, and when latched the cap position is .051 in above the bezel.