S5821-01Si PIN photodiode

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High performance, high reliability Si PIN photodiode


The S5821-01 is a high-speed Si PIN photodiode having high sensitivity over a wide spectral range from visible to near infrared light. The S5821-01 provides high performance and reliability at a low cost.


-High-speed response
-Wide spectral response
-Low dark current
-Low terminal capacitance

Photosensitive area

φ1.2 mm

Number of elements




Package category

TO-18, with lens

Reverse voltage (max.)

20 V

Spectral response range

320 to 1100 nm

Peak sensitivity wavelength (typ.)

960 nm

Photosensitivity (typ.)

0.52 A/W

Dark current (max.)

2000 pA

Cutoff frequency (typ.)

25 MHz

Terminal capacitance (typ.)

3 pF

Measurement condition

Typ. Ta=25 ℃, unless otherwise noted,
Photosensitivity: λ=780 nm, Dark current: VR=10 V, Cutoff frequency: VR=10 V, Terminal capacitance: VR=10 V, f=1 MHz

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