QPD is a PD or APD with a photosensitive surface divided into four quadrants with very small spacing between adjacent areas and a common substrate. The signal spot of regular shape is irradiated to the four quadrants at the same time, so that the quadrants can generate different photocurrent signals, and the two-dimensional coordinates of the spot can be accurately obtained by calculation. The position resolution of the detector can be up to 0.1μm or less, and it is less affected by the signal-to-noise ratio and very suitable for applications that require high alignment accuracy.
Application: Spot centering, precision displacement measurement, vibration detection, angle measurement, eye tracking, guidance, etc.
| PN | Active Area | Rise Time | Dark Current | Interelectrode Resistance | Package | Position Detection Error | Package Style | Pin Qty. | Window |
|---|---|---|---|---|---|---|---|---|---|
| DL-2 | Ø2 mm | 0.025 μs@-5V,670nm,50Ω | 30 nA@-5V | 5 … 25 kΩ | TO-8 | 30 μm@64% Sensing Area | TO | 4 | - |
| DLS-2 | Ø2 mm | 0.025 μs@-5V,670nm,50Ω | 10 nA@-5V | 5 … 25 kΩ | TO-8 | 30 μm@64% Sensing Area | TO | 4 | - |
| DLS-2S | 2 × 2 mm | 25 ns@-5V,670nm,50Ω | 10 nA@-5V | 5 … 25 kΩ | TO-5 | 30 μm@64% Sensing Area | TO | 5 | - |
| DL-4 | - | - | - | - | - | - | - | - | - |
| DLS-4 | 4 × 4 mm | 80 ns@-5V,670nm,50Ω | 25 nA@-5V | 5 … 25 kΩ | TO-8 | 50 μm@64% Sensing Area | TO | 4 | - |
| DL-10 | - | - | - | - | - | - | - | - | - |
| DL-20 | - | - | - | - | - | - | - | - | - |
| DL-10C | - | - | - | - | - | - | - | - | - |
| DL-20C | - | - | - | - | - | - | - | - | - |
| SC-4D | - | - | - | - | - | - | - | - | - |
| SC-10D | - | - | - | - | - | - | - | - | - |
| SC-25D | - | - | - | - | - | - | - | - | - |
| SC-50D | - | - | - | - | - | - | - | - | - |
| DL100-7 CERSMD | 10 × 10 mm | 4000 ns@-10V,865nm,50Ω | 80 nA@-10V | 12 kΩ | Ceramic SMD | 0.2 μm | SMD | 8 | - |
| DL400-7 CERSMD | 20 × 20 mm | 4000 ns@-10V,865nm,50Ω | 800 nA@-10V | 12 kΩ | Ceramic SMD | 0.3 μm | SMD | 8 | - |
| DL16-7 CERSMD | 4 × 4 mm | 500 ns@-10V,865nm,50Ω | 5 nA@-10V | 10 kΩ | Ceramic SMD | 0.06 μm | SMD | 8 | - |
| DL16-7 THD | 4 × 4 mm | 500 ns@-10V,865nm,50Ω | 5 nA@-10V | 10 kΩ | Ceramic THD | 0.06 μm | Special | 8 | - |
| DL100-7 CERpin | 10 × 10 mm | 4000 ns@-10V,865nm,50Ω | 80 nA@-10V | 12 kΩ | Ceramic THD | 0.2 μm | Special | 8 | - |
| DL16-7 CERpin | 4 × 4 mm | 500 ns@-10V,865nm,50Ω | 5 nA@-10V | 10 kΩ | Ceramic THD | 0.06 μm | Special | 8 | - |
| DL400-7 CERSMD(*) | - | - | - | - | - | - | - | - | - |
| DL400-7 CERPIN | 20 × 20 mm | 4000 ns@-10V,865nm,50Ω | 800 nA@-10V | 12 kΩ | Ceramic THD | 0.3 μm | Special | 8 | - |
| DL400-7 THD | 20 × 20 mm | 4000 ns@-10V,865nm,50Ω | 800 nA@-10V | 12 kΩ | Ceramic THD | 0.3 μm | Special | 8 | - |
| DLS-10 | 10 × 10 mm | 200 ns@-5V,670nm,50Ω | 50 nA@-5V | 5 … 25 kΩ | Ceramic THD | 100 μm@64% Sensing Area | Special | 4 | - |
| PIN-SC 10D | 10.16 × 10.16 mm | 1000 ns@-15V,670nm,50Ω | 25 nA | 3 … 30 kΩ | Φ24.8 Special | 1.30 mm@64% Sensing Area | Special | 5 | - |
| PIN-DL-10C | 10 × 10 mm | 200 ns@-5V,670nm,50Ω | 500 nA@-5V | 5 … 25 kΩ | Ceramic THD | 100 μm@64% Sensing Area | Special | 8 | - |
| PIN-DL-4 | 4 × 4 mm | 80 ns@-5V,670nm,50Ω | 50 nA@-5V | 5 … 25 kΩ | TO-8 | 50 μm@64% Sensing Area | TO | 4 | - |