S5973-01Si PIN photodiode

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Photodiode with mini-lens, high-speed response (1 GHz)


The S5973-01 is a high-speed Si PIN photodiode designed for visible to near infrared light detection. The mini-lens type photodiode can be efficiently coupled to an optical fiber. This photodiode provides wideband characteristics at a low bias, making them suitable for optical communications and other high-speed photometry.


-High-speed response: 1 GHz (VR=3.3 V)
-Low price
-High reliability

Photosensitive area

φ0.4 mm

Number of elements




Package category

TO-18, with lens

Reverse voltage (max.)

20 V

Spectral response range

320 to 1000 nm

Peak sensitivity wavelength (typ.)

760 nm

Photosensitivity (typ.)

0.51 A/W

Dark current (max.)

100 pA

Cutoff frequency (typ.)

1000 MHz

Terminal capacitance (typ.)

1.6 pF

Measurement condition

Typ. Ta=25 ℃, unless otherwise noted,
Photosensitivity: λ=780 nm, Dark current: VR=3.3 V, Cutoff frequency: VR=3.3 V, Terminal capacitance: VR=3.3 V, f=1 MHz

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