First Sensor WS PD Data Sheet
Part Description WS7.56 TO
Order # 501224; 501225
Version 15-11-11
Features
Description Application RoHS
2002/95/EC
Absolute maximum ratings
Spectral response (23 °C)
Max
125
100
5
10
Schematic 501224 Schematic 501225
Electro-optical characteristics @ 23 °C
Unit
µm
mm²
nA
nF
pF
A/W
A/W
µs
µs
MΩ
MΩ
V
European, International Sales:
sales.opto@first-sensor.com sales.us@first-sensor.com
First Sensor AG
Peter-Behrens-Strasse 15
12459 Berlin
Germany
T +49 30 6399 2399
F +49 30 639923-752
USA:
• Precision photometry
• Analytical instruments
• Medical equipment
• Wavelength determination for
10
1
CA 91362 USA
IPEAK
mA
Active area
Min
2750 x 2750
Active area
7.56
Typ
Max
Symbol
Characteristic
Test Condition
• 7.56 mm² wavelength sensitive
detector
• Two stacked p-n-junctions
• Operating range 450 - 950 nm
Symbol
Unit
Min
Wavelength senisitive square active
area PIN photodiode with 7.56 mm²
active area. Metal can type hermetic
TO5(i) package with clear glass
window. Isolated version: #501225.
monochromatic light
TOP
-40
°C
Vmax
V
TSTG
-55
°C
C
Capacitance
Diode 1; VR = 0 V
1
ID
Dark current
VR = 5 V
10
Diode 2; λ = 890 nm
0.45
Responsivity
Diode 1; λ = 550 nm
tR
Rise time
Diode 1; VR = 0 V; λ = 850 nm; RL = 1 kΩ
Diode 2; VR = 0 V
100
10
Diode 2; VR = 0 V; λ = 850 nm; RL = 1 kΩ
0.2
Shunt Resistance
100
T +1 818 706 3400
F +1 818 889 7053
Diode 1; VR = 10 mV
2000
Diode 2; VR = 10 mV
First Sensor Inc.
5700 Corsa Avenue #105
Westlake Village
Breakdown voltage
IR = 2 µA
5
VBR
0,00
0,05
0,10
0,15
0,20
0,25
0,30
0,35
0,40
0,45
0,50
400 450 500 550 600 650 700 750 800 850 900 950 1000
Responsivity (A/W)
Wavelength (nm)
Anode 1
Anode 2
#501273
501224
501225
First Sensor WS PD Data Sheet First Sensor WS PD Data Sheet
Part Description WS7.56 TO Part Description WS7.56 TO
Order # 501224; 501225 Order # 501224; 501225
Version 15-11-11 Version 15-11-11
Quantum efficiency (23 °C) Dark current as of bias (23 °C)
Special charactertistics:
Application hints:
Handling precautions:
• Soldering temperature max. 260 °C for 10 s. The device must be protected against solder flux vapour.
• Minimum pin length is 2 mm.
• For ESD protection standard precautionary measures are sufficient.
• For further questions please refer to document "Instructions for handling and processing".
European, International Sales:
sales.opto@first-sensor.com sales.us@first-sensor.com
12459 Berlin
Germany
T +49 30 6399 2399
F +49 30 639923-752
The WS7.56 wavelength sensor has two p-n junctions constructed vertically on a common
silicon substrate.
The upper and lower diode have an enhanced blue and red response, respectively. Absorbed
radiation between 450 and 900 nm generates two photocurrents proportional to the
wavelength of the incident light. The quotient of the signals is independent of light level up to
the saturation point. The wavelength of monochromatic light or the spectral density peak of
polychromatic light can therefore be determined.
During photovoltaic operation (Vrev= 0 V) the quotient of photocurrents
from anode 1 and anode 2 is constant for up to 150 µW irradiated
power. This range can be increased to up to 3mW when the reverse
bias is raised. A recomended application circuit is shown to the right.
5700 Corsa Avenue #105
First Sensor Inc.
USA:
F +1 818 889 7053
T +1 818 706 3400
CA 91362 USA
Westlake Village
First Sensor AG
Peter-Behrens-Strasse 15
0
20
40
60
80
400 450 500 550 600 650 700 750 800 850 900 950 1000
Quantum efficiency (%)
Wavelength (nm)
Anode 1
Anode 2
0,01
0,10
1,00
10,00
0 1 2 3 4 5
Dark current (nA)
Reverse bias (V)
Anode 1
Anode 2
First Sensor WS PD Data Sheet First Sensor WS PD Data Sheet
Part Description WS7.56 TO Part Description WS7.56 TO
Order # 501224; 501225 Order # 501224; 501225
Version 15-11-11 Version 15-11-11
Package dimension:
Small quantities: Foam pad, boxed (12 cm x 16.5 cm)
Disclaimer: Due to our strive for continuous improvement, specifications are subject to change within our PCN policy according to JESD46C.
European, International Sales:
sales.opto@first-sensor.com sales.us@first-sensor.com
Peter-Behrens-Strasse 15
12459 Berlin
Germany
T +49 30 6399 2399
F +49 30 639923-752
Order number 501225, Package: TO5i
Order number 501224, Package: TO5
T +1 818 706 3400
F +1 818 889 7053
First Sensor Inc.
5700 Corsa Avenue #105
Westlake Village
CA 91362 USA
USA:
First Sensor AG