SiTek Standard PSD
The SiTek Standard PSD (Position Sensing Detector) has high resolution, fast response and outstanding linearity. It is used in a wide variety of applications, most of them utilizing light sources in the visible or near-infrared part of the spectrum. The spectral range covers the region 400 - 1100 nm. Thanks to SiTek's proprietary AR-coating, optimized around 860 nm, a reflection loss of only 2% is achieved around the responsivity peak. Most of the detectors have a cover window to avoid handling damages.
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| 1L20_CP3 A standard One-dimensional PSD with 22-pin DIL-package, 31,8 x 9,9 mm |
SiTek UV PSD
The UV PSD is a detector optimized for use in the UV wavelength region 200-400 nm, although its spectral response reaches up to 1100 nm. The sensitivity in the UV region (200-400 nm) is extremely high. The UV-PSD has the same outstanding specifications as the standard SiTek PSD.

Quick reference data
| Position non-linearity | +/-0.1% |
| Detector resistance | 50 kohm |
| Part. No | Description | Active area (mm) | Leakage current (nA) | Noise current pA/Hz | Capa- citance (pF) | Rise time (10-90%) (µs) | Standard package | | S1 - 0001 | 1L2.5_CP2 | 2,5x0,6 | 2 | 0,4 | 1,6 | 0,03 | 14-pin DIL | | S1 - 0065 | 1L2.5_CP1 | 2,5x0,6 | 2 | 0,4 | 1,6 | 0,03 | 4-pin DIL | | S1 - 0003 | 1L5_CP2 | 5,0x1,0 | 4 | 0,4 | 5 | 0,05 | 14-pin DIL | | S1 - 0009 | 1L5_CP1 | 5,0x1,0 | 4 | 0,4 | 5 | 0,05 | 4-pin DIL | | S1 - 0005 | 1L10_CP2 | 10x2 | 8 | 0,4 | 15 | 0,2 | 14-pin DIL | | S1 - 0236 | 1L10_SU70 | 10x2 | 8 | 0,4 | 15 | 0,2 | SMD | | S1 - 0006 | 1L20_CP3 | 20x3 | 60 | 0,5 | 45 | 0,5 | 22-pin DIL | | S1 - 0007 | 1L30_SU2 | 30x4 | 150 | 0,7 | 90 | 1 | Substrate | | S1 - 0247 | 1L45_SU69 | 45x3 | 110 | 0,4 | 105 | 2,7 | Substrate | | S1 - 0248 | 1L60_SU34 | 60x3 | 150 | 0,4 | 135 | 4,5 | Substrate |
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PSD with stray-light elimination
| Position non-linearity | +/-0.1% |
| Detector resistance | 200 kohm |
| Part. No | Description | Active area (mm) | Leakage current (nA) | Noise current pA/Hz | Capa- citance (pF) | Rise time (10-90%) (µs) | Standard package | | S1 - 0090 | 1L5NT_CP1 | 5x0,25 | 4 | 0,3 | 5 | 0,25 | 4-pin DIL | | S1 - 0066 | 1L5NT_CP2 | 5x0,25 | 4 | 0,3 | 5 | 0,25 | 14-pin DIL | | S1 - 0067 | 1L10NT_CP2 | 10x0,5 | 8 | 0,3 | 15 | 0,7 | 14-pin DIL |
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PSD with Enhanced UV respons
| Part. No | Description | Active area (mm) | Leakage current (nA) | Noise current pA/Hz | Capa- citance (pF) | Rise time (10-90%) (µs) | Standard package | | S1 - 0072 | 1L2,5UV_CP2 | 2,5x0,6 | 2 | 0,4 | 1,6 | 0,03 | 14-pin DIL | | S1 - 0032 | 1L5UV_CP2 | 5x1 | 4 | 0,4 | 5 | 0,05 | 14-pin DIL | | S1 - 0073 | 1L10UV_CP2 | 10x2 | 8 | 0,4 | 15 | 0,2 | 14-pin DIL | | S1 - 0074 | 1L20UV_CP3 | 20x3 | 50 | 0,5 | 45 | 0,5 | 14-pin DIL | | S1 - 0034 | 1L30UV_SU2 | 30x4 | 150 | 0,5 | 90 | 1 | Substrate |
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| Common data for all SiTek PSDs: |
| Thermal drift, typical | 20 ppm/°C for 1L-series and 40 ppm/°C for 2L-series |
| Bias voltage | 5 - 20 V |
| Maximum operating temp. | 70° C |
| Maximum storage temp. | 100° C |
The device specification data are measured under the following conditions:
Bias = 15 V
Temperature 23° C
Position non-linearity and thermal drift are measured within 80% of the detector length. Thermal drift is measured from 23° C to 70° C.
All values are typical unless otherwise stated.
For detailed data, please refer to individual data sheets.
SiTek Standard PSD
The SiTek Standard PSD (Position Sensing Detector) has high resolution, fast response and outstanding linearity. It is used in a wide variety of applications, most of them utilizing light sources in the visible or near-infrared part of the spectrum. The spectral range covers the region 400 - 1100 nm. Thanks to SiTek's proprietary AR-coating, optimized around 860 nm, a reflection loss of only 2% is achieved around the responsivity peak. Most of the detectors have a cover window to avoid handling damages.
A standard One-dimensional PSD with 22-pin DIL-package, 31,8 x 9,9 mm
SiTek UV PSD
The UV PSD is a detector optimized for use in the UV wavelength region 200-400 nm, although its spectral response reaches up to 1100 nm. The sensitivity in the UV region (200-400 nm) is extremely high. The UV-PSD has the same outstanding specifications as the standard SiTek PSD.
Quick reference data
(mm)
(nA)
PSD with stray-light elimination
PSD with Enhanced UV respons
40 ppm/°C for 2L-series
The device specification data are measured under the following conditions:
Bias = 15 V
Temperature 23° C
Position non-linearity and thermal drift are measured within 80% of the detector length. Thermal drift is measured from 23° C to 70° C.
All values are typical unless otherwise stated.
For detailed data, please refer to individual data sheets.