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Multiple Photodiodes
PDM with two different receiving elements (chips) in TO-18 (TO-5) package have been developed by IBSG Company for detection of various gases. PDM includes a photodiode of series PDXX and photodiode of series PDZZ. The Company offers different combinations of elements as the technical problems require. Manufacturing of multiple PDs is made to individual order.
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| The spectral distribution of a detectivity of two-element photo-receivers PDM2436 and PDM3648 for detection of optical signals in spectral ranges 0.8 - 3.8 µm и 1.5* - 4.9 µm. Photo-receivers PDM3648 consist of two elements (photodiode chips) - PD24-05 and PD36-05. The elements can be connected independently of each other. | |
| Two-elements photo-receivers available for spectral ranges: | 0.8 - 3.8 µm (PDM2436) 1.5* - 4.9 µm (РDM3648) |
| Model | Element | Spectral range, µm |
Sensitive area diameter, mm |
Max. sensitivity, A/W |
Detectivity, D*(λmax,1000,1), cm·Hz½·W−1 |
Package | |
| PDM2436 | Photodiode 1 | PD24-05 | 0.8 - 2.4 | 0.5 | 1.0 - 1.1 | (5-9)·1010 | TO-18 TO-5 |
| Photodiode 2 | PD36-05 | 1.5* - 3.8 | 0.5 | 1.0 - 1.2 | (3-6)·109 | ||
| PDM3648 | Photodiode 1 | PD36-05 | 1.5* - 3.8 | 0.5 | 1.0 - 1.2 | (3-6)·109 | TO-18 TO-5 |
| Photodiode 2 | PD48-05-WS** | 1.0 - 4.8** | 0.5 | 0.6 - 0.8 | (5-9)·108 | ||
** using the PD chip PD48-05-NS spectral range 2.5 - 4.9 µm