Si PIN photodiode
S7478
Large photosensitive area (5 × 5 mm) photo-
sensor with high reliability
The S7478 is a PIN photodiode having a large photosensitive area (5 × 5 mm) and surface mount flat package with leads.
Features
Applications
Surface mount plastic package: 9 × 9.6 × 1.5t mm
Large photosensitive area: 5 × 5 mm
Automobile sensor
(Vehicle and traffic information system, laser radar,
front window frost sensor, rain sensor)
Operating temperature range: -40 to +85 °C
Storage temperature range: -40 to +100 °C
FSO (free space optics)
High sensitivity: 0.72 A/W (λ=960 nm)
Structure
Parameter
Photosensitive area
Package
Specification
5 × 5
Plastic
Silicone resin
Unit
mm
-
-
Window material
Absolute maximum ratings
Parameter
Reverse voltage
Operating temperature
Storage temperature
Symbol
VR max. Ta=25 °C
Topr
Condition
Specification
20
-25 to +85
-40 to +100
Unit
V
°C
°C
-
Tstg
1
Reflow soldering conditions
Tsol
Peak temperature 240 °C max., two times (see page 4)
*
Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the
product within the absolute maximum ratings.
1: JEDEC level 5a
*
Electrical and optical characteristics (Ta=25 °C)
Parameter
Symbol
Condition
Min.
-
-
0.6
-
-
Typ.
320 to 1100
960
Max.
-
-
-
-
5
-
Unit
nm
nm
A/W
μA
nA
Spectral response range
Peak sensitivity wavelength
Photosensitivity
Short circuit current
Dark current
λ
λp
S
λ=λp
0.72
26
0.4
1.14
lx
Isc
100 , 2856 K
I
D
VR=10 V
Temperature coefficient of I
T
D
CID
-
times/°C
V =10 V, R =50 Ω
R
L
Cutoff frequency
fc
20
40
-
MHz
pF
10
-
-3 dB, λ=780 nm
Terminal capacitance
Ct
60
VR=10 V, f=1 MHz
1
www.hamamatsu.com