ULTRAVIOLET LIGHT SENSOR,
UV-A to UV-B SENSING Si PHOTODIODE www.ablic.com Rev.1.1_00 © ABLIC Inc., 2018 The S-5420 is a photodiode (PD) made of silicon that can detect ultraviolet light at high sensitivity. The output current
changes in reaction to light which includes ultraviolet light. Therefore, the S-5420 can detect light intensity of various light
sources for LEDs and other devices. Since the S-5420 can detect ultraviolet light intensity, it is particularly well suited for
use in various light measurement devices which irradiate ultraviolet light.
The S-5420 is composed of two types of ultraviolet photodiodes, a high-sensitivity and a low-sensitivity photodiodes. Using
an external circuit, the S-5420 takes the difference of output between the high-sensitivity and low-sensitivity photodiodes,
which cuts out visible light components. It results in ultraviolet components detection.
Incorporating a surface-mounting type, small, transparent package, the S-5420 allows for high-density mounting.
Remark This product is jointly developed with Sugawa and Kuroda Laboratory of Graduate School of Engineering,
Tohoku University. Features
• Wide-range sensitivity wavelength:
• High-sensitivity ultraviolet light detection:
• Ultraviolet components detection: λ = 250 nm to 1000 nm
SH = 0.17 A/W (λ = 365 nm)
As a result of the difference of output between two types of photodiodes
(Requirement: external parts) • Lead-free, halogen-free Applications
• Light intensity detection of ultraviolet light source
• UV index detection
• Analytical equipment Package
• SON-6C 1 ULTRAVIOLET LIGHT SENSOR, UV-A to UV-B SENSING Si PHOTODIODE