S12271Si PIN photodiode


Datasheet [321 KB/PDF]

Large area, high-speed PIN photodiode for UV to near IR photometry


The S12271 is a high-speed Si PIN photodiode having a large photosensitive area of φ4.1 mm. Using quartz glass as the light input window, this photodiode delivers high sensitivity extending to the UV region and is suitable for optical power meters.


-Quartz glass window
-High UV sensitivity
-Large photosensitive area: φ4.1 mm
-High-speed response: 60 MHz (VR=100 V)


Photosensitive area φ4.1 mm
Number of elements 1
Package Metal
Package category TO-8
Reverse voltage (max.) 120 V
Spectral response range 190 to 1100 nm
Peak sensitivity wavelength (typ.) 960 nm
Photosensitivity (typ.) 0.5 A/W
Dark current (max.) 30000 pA
Cutoff frequency (typ.) 60 MHz
Terminal capacitance (typ.) 10 pF
Measurement condition Ta=25 ℃, Typ., unless otherwise noted,
Photosensitivity: λ=960 nm, Dark current: VR=100 V, Cutoff frequency: VR=100 V, Terminal capacitance: VR=100 V, f=1 MHz

Go to top

Spectral response


Go to top

Dimensional outline (unit: mm)


Go to top

Go to top


The save-to-list function can only work if JavaScript is turned on.

The recently viewed function can only work if JavaScript is turned on.