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S.M.D Types
B3U Ultra-small Tactile Switch
Ultra-small-sized Tactile Switch with
High Contact Reliability:
1.2×3×2.5 mm (H×W×D)
- Industry's smallest switch* allows high-density mounting on PCBs for mobile equipment. *As of October 2006 (according to OMRON survey).
- Dust-proof construction provides high reliability in dusty environments.
- Surface mounted: Ideal for high-density mounting.
- Models with ground terminals are available for protection against static electricity.
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Packaging |
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Ground |
| Operation type |
Order
unit |
terminal |
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Embossed taping |
Without ground
terminal |
With ground
terminal |
| Topactuated |
3,500
pieces |
Without
boss |
B3U-1000P |
B3U-1100P |
| With boss |
B3U-1000P-B |
B3U-1100P-B |
| Sideactuated |
4,000
pieces |
Without
boss |
B3U-3000P |
B3U-3100P |
| With boss |
B3U-3000P-B |
B3U-3100P-B |
Note: Orders must be made in multiples of the order unit specified
above.
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Top-actuated
(B3U-1000 Series) |
Side-actuated
(B3U-3000 Series) |
| Switching
capacity |
1 to 50 mA, 5 to 12
VDC (resistive load) |
Ambient operating
temperature |
-25 to 70ºC,
60% humidity (with no icing or condensation) |
| Ambient humidity |
35% to 85% (at 5
to 35ºC) |
| Contact configuration |
SPST-NO |
| Contact resistance |
100 mΩ max.
(initial value) (rated: 1 mA, 5 VDC) |
| Insulation resistance |
100 MΩ min.
(at 100 VDC) |
| Dielectric strength |
250 VAC, 50/60 Hz
for 1 min |
| Bounce time |
5 ms max. |
| Vibration resistance |
10 to 55 Hz, 1.5
mm double amplitude |
| Shock resistance |
1,000 m/s2 max. |
| Life expectancy |
200,000 operations min. |
100,000 operations min. |
Maximum
operating force |
30 N max. |
| Weight |
Approx. 0.022 g |
| Note: |
All units are in millimeters unless otherwise indicated. Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions. |
| Top-actuated Models |
Without Ground Terminal, without Boss
B3U-1000P |
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With Ground Terminal, without Boss
B3U-1100P
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Without Ground Terminal,
with Boss
B3U-1000P-B
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With Ground Terminal, with
Boss
B3U-1100P-B
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Side-actuated Models
Note: Unless otherwise specified, a tolerance of ±0.2
mm applies to all dimensions. |
Without Ground Terminal, without
Boss
B3U-3000P
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With Ground Terminal, without
Boss
B3U-3100P
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Without Ground Terminal, with
Boss
B3U-3000P-B
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With Ground Terminal, with Boss
B3U-3100P-B
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Operating Characteristics
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Top-actuated
(B3U-1000 Series) |
Side-actuated
B3U-3000 Series) |
| Operating force (OF) |
1.50 ± 0.49 N |
1.59 ± 0.49 N |
| Releasing force (RF) |
0.2 N min. |
| Pretravel (PT) |
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