Electronics Weekly
Called the S17353 series, they share a typical sensitivity of 0.44A/W at 650nm, and the six models vary in photosensitive diameter from 0.2 to 5mm.
The smallest has a capacitance of 1pF and can be esxpected to work at 1GHz in a 50Ω circuit. At the other end of the scale, the 5mm diameter diode has 85pF and will work up to 35MHz.
Excess noise figure is 0.28 at 650nm across all devices.
Typical breakdown voltage is 400V.
“These sensors are ideal for low-light measurement and analysis instruments, making them suited to spectroscopy, analytical chemistry and industrial applications,” according to the company.
| Part | Package | Photosensor diameter |
Dark current |
| S17353-02K | TO-5 | 0.2 mm | 1nA typ |
| S17353-05K | TO-5 | 0.5 | 1.5 |
| S17353-10K | TO-5 | 1 | 2 |
| S17353-20K | TO-5 | 2 | 5 |
| S17353-30K | TO-8 | 3 | 10 |
| S17353-50K | TO-8 | 5 | 25 |
Find the S17353 series data sheet here
Earlier this year, Hamamatsu introduced a series of InGaAs photo diodes that operate at longer wavelengths from 0.9 to 2.6μm
