Kyosemi, ir led, uv led, apd, pd, vecsel, sphelar

Optical Communication

	InGaAs Photodiodes

	Flip-Chip type InGaAs Photodiode (Back surface illuminated type)

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Optical Sensing and Control

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InGaAs Photodiode with Peltier cooler

Spherical Micro Solar Cell


	Sphelar® Array F12

	Sphelar® One

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	SphelarVoice®

SMD-Type GaN UV Sensor

KPDU34PS1

Features

Wide sensitivity covering both UV-A and UV-B radiations
Blindness to visible light:Typical sensitivity ratio, S(600nm)/S(340nm)<1/5000
Low dark current with a photovoltaic mode
Large sensing area(S=0.8x0.8mm)
Reliable and small-size surface mount package:2x3x0.95mm(LxWxH)

Applications

UV sensors
UV exposure meters
UV source monitors
Medical uses
Spectroscopy

Package Outlines

Recommended soldering pattern

Maximum ratings

Item	Symbol	Value	Units
Reverse Voltage	VR	2	V
Forward Voltage	VF	2	V
Operating Temperature	Topr	-20 ~ +80	°C
StorageTemperature	Tstg	-40 ~ +90	°C
Soldering Temperature	Tsol	260(5s max)	°C

Characteristics (Ta=25°C unless otherwise noted.)

Parameter	Symbol	Min.	Typ.	Max.	Units	Test Conditions
Active Area	S	0.8x0.8			mm²
Operating Voltage	VR0	0			V
Sensitive Wavelength	λ	280	340(λP)	420	nm	λP = Peak wavelength
Photocurrent	IL		60		nA	λ = 320nm, 1mW/cm²
Dark Current	Id			1	nA	VR = 10mV

Typical Characteristics

Operation Circuit Examples

Circuit 1 : Standard Amplifier Circuit

More than two amplifiers should be used for detecting weak UV signals. As shown in Circuit1 , the circuit is composed of two amplifiers, the first I-V converter and the second non-inverting amplifier. The gain can be adjusted from 100,000 to 1,000,000 times by changing the resistance.

Circuit 2 : Integration Amplifier Circuit

The integration amplifier shown in Circuit 2 is recommended for detecting weak UV signals. The UV sensor works as a current source. The integration capacitor should have low leak current and dielectric loss as Mylar or polypropylene film capacitor has. The MOS-FET in the reset circuit should have the capacitance much lower than the capacitance of the integration capacitor otherwise zero point will be deviated. Large charge injection from selectings causes zero error. The gain of the amplifier can be adjusted by changing the integration period and the capacitance.

Opening Angle vs Directivity

Recommended Reflow Soldering Profile

Precautio ns in Use

This product is designed to be used with general electronic equipment or devices (such as electronic instrumentation, electrical appliance, office equipment).
Please be sure to consult with our sales staff in advance for special applications such as medical instruments, transportation equipment, spacecraft, fuel controllers and other safety devices which require exceptionally high reliability and if their failure or malfunction may threaten human safety.

< Absolute Maximum Ratings >

If you operate it over the absolute maximum ratings, it may cause a permanent damage.

< For Assem bly >

It should be soldered within 7days after unsealing it.
This product is not so designed that it can be dip-cleaned. When soldering, please pay attention not to adhere flax over the glass surface. If flax is adhered, remove it softly by a cotton containing IPA.
Handle this product carefully so that a strong power will not be applied to the glass part.

< Counterm easure against Electro-static >
　To protect from electro-static,

Use a wrist strap or anti-electrostatic gloves for handling.
When an automatic device is used,

a)	Minimize the friction against the carrier devices.
b)	With the process that this product may be charged by electro-static, use an ionize to neutralize.
c)	Use e.g. VDT filter with CRT monitors to avoid the electro-static and do not turn them on / off as much as possible since it could be a cause of the charging.