![](http://datasheet.mmic.net.cn/10000/S7478-01_datasheet_1450874/S7478-01_1.png)
Features
l Surface-mount plastic package (9 × 9.6 mm)
l Large active area: 5 × 5 mm
l Operating temperature range: -40 to +100 C
Storage temperature range : -40 to +125 C
l High sensitivity: 0.72 A/W (λ=960 nm)
l Visible-cut type (S7478-01) available
Applications
l Automobile sensor
(Vehicle and traffic information system, laser radar,
front window frost sensor, rain sensor)
l Spatial light transmission
PHOTODIODE
Si PIN photodiode
Large active area (5 × 5 mm) photosensor with high reliability
S7478 series
S7478 series is a PIN photodiode having a large active area (5 × 5 mm) and surface-mount flat package with leads. S7478 series offers high
sensitivity and improved characteristics in temperature cycle tests.
s
Absolute maximum ratings (Ta=25 °C)
Parameter
Symbol
Value
Unit
Reverse voltage
VR Max.20
V
Operating temperature
Topr
-40 to +100
°C
Storage temperature
Tstg
-40 to +125
°C
s
Electrical and optical characteristics (Ta=25 °C)
S7478
S7478-01
Parameter
Symbol
Condition
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Spectral response range
λ
-
320 to
1100
--
780 to
1100
-nm
Peak sensitivity wavelength
λp
-
960
-
960
-
nm
Photo sensitivity
S
λ=λp
0.6
0.72
-
0.6
0.7
-
A/W
Short circuit current
Isc
100 lx , 2856 K
-
26
-
16
-
A
Dark current
ID
VR=10 V
-
0.45
-
0.45
nA
Cut-off frequency
fc
VR=10 V, RL=50
-3 dB *
10
20
-
8
15
-
MHz
Terminal capacitance
Ct
VR=10 V, f=1 MHz
-
40
80
-
40
80
pF
* S7478
: λ=780 nm
S7478-01: λ=850 nm