Optical axis keyboard is a new generation keyboard which join the new optical sensor recognition technology in recent years. By replacing the traditional metal contacts for the optical sensor components, use optical media as a bridge. Because there is no contact, so it will not wear.
Optical axis technology takes advantage of infrared optical induction. There is no abrasion during conduction due to no contact point. The waveform of Optical signal pulse output is clean and noise-free. The keyboard response speed only takes 1ms. Thanks to the new optical sensors - SMD IR phototransistors (PT-B1-DC-0603-940) is the most critical component in optical axis applications.
The (PT-B1-DC-0603-940) surface mounted infrared receiving light sensor features fast response speed, stable performance, low current loss in static, and anti-strong light interference. The effective control distance is greater than 1.5 meters.
For the convenience of installation in all kinds of products in any position, different sizes are available upon request. So that product consistency is better, more market competitiveness. It is also achievable to provide the bright current / dark current (bright resistance / dark resistance) for the most suitable product.
Download complete specification SMD Light Sensor Phototransistors (PT-B1-DC-0603-940) PDF.
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Part NO. | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | G (mm) | H (mm) | I (mm) | |
PT-B1-DC-0603-940 | 1.2 ± 0.2 | 1.6 ± 0.2 | 0.8 ± 0.2 | 0.3 ± 0.2 | 0.8 ± 0.2 | 1.0 ± 0.2 | 1.5 ± 0.2 | 0.8 ± 0.2 | 0.8 ± 0.2 |
Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
Peak Wavelength | λp | \ | - | 940 | - | nm |
Spectral Response Bandwidth | λ | \ | 700 | - | 1100 | nm |
Operating Voltage | Vcc | \ | - | 5 | - | V |
Collector-Emitter Breakdown Voltage | Bvceo | Ice=100µA Ee=0mW/cm2 |
30 | - | - | V |
Emitter-Base Breakdown Voltage | Bvceo | Ice=100µA Ee=0mW/cm2 |
3 | - | - | V |
Collector-Emitter Saturation Voltage | IL(3) | Vcc=5V Ev=0Lux |
- | - | 0.4 | V |
Collector Emitter Current | IL | Vce=5V Ee=1mW/cm2 |
0.2 | 0.3 | 0.4 | μA |
Collector Dark Current | Id | Vcc=5V Ev=0Lux |
- | - | 0.1 | μA |
Rise Time | tr | Vcc=5V Ev=30Lux RL=1000Ω |
15 | μs | ||
Fall Time | tf | 15 |
Parameter | Symbol | Rating Value | Unit |
Collector - Emitter Voltage | VCEO | 30 | V |
Emitter - Collector Voltage | VECO | 5 | V |
Power Dissipation | Pc | 70 | mW |
Operating Temperature Range | Topr | -25 ~ +85 | °C |
Storage Temperature | Tstg | -40 ~ +85 | °C |
Characteristic of Temperature Curve | Reference Settings | |||||||||
Average Heating Speed (Tsmax to Tp) | Max. 3°C / Sec | |||||||||
Preheating: Minimum Temperature | (Tsmin) | |||||||||
Preheating: Maximum Temperature (Tsmax) | 150°C | |||||||||
Preheating: Time (tsmin to tsmax) | 60 ~ 120 Sec | |||||||||
Reflow Temperature: Temperature (TL) | 183°C | |||||||||
Period of Reflow: Time (TL) | 60 ~ 150 Sec | |||||||||
Peaking Temperature (TP) | 225°C | |||||||||
Within the Actual Peak Temperature (tp) 5°C | 10 ~ 30 Sec | |||||||||
Cooling speed | Max. 6°C / Sec | |||||||||
25°C Time required to rise to peak temperature | Max. 6 minutes |
Storage :
Baking and dehumidification :
Temperature | Maximum Relative Humidity (%) | ||||||
30% | 40% | 50% | 60% | 70% | 80% | 90% | |
30°C | 9 | 5 | 4 | 3 | 1 | 1 | 1 |
25°C | 12 | 7 | 5 | 4 | 2 | 1 | 1 |
20°C | 17 | 9 | 7 | 6 | 2 | 2 | 1 |
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Service life :
Use and description of Humidity Monitor card :
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Electrostatic Protection :
Other Matters :
Packing format (Tape and reel) :
ITEM | W | A0 | B0 | D | F | E | K0 | P0 | P2 | P | T |
DIM | 12 | 3.0 | 3.7 | 1.5 | 5.5 | 1.75 | 2.6 | 4.0 | 2.0 | 8.0 | 0.35 |
TOLE | ±0.3 | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.05 |
PT | - | B1 | - | DC | - | 0603 | - | 940 | ||||||||||||||||||
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