ElFys
SM446
Photodetector Datasheet
ElFys SM series photodiode products
consist of ElFys patented Black Silicon Induced Junction Technol- ogy. ElFys SM
series photodiode products provide superior performance of photosensitivity in
visible and near infrared spectrum. The product is especially suitable for
health monitoring applications in weara- ble devices. The high sensitivity of
the product offers more output photocurrent and improves the en- ergy
efficiency of PPG (photoplethysmography) module. Together with its compact
packaging and high fill factor of photosensitive area, it facilitates
innovative wearable products design.
Key feature: Enhanced
photosensitivity to Green, Red and NIR wavelength Key application: HRM,
SpO2 for wearables
|
Part number
|
Photosensitive area (mm2)
|
Packaging
|
Outline dimen- sion (mm)
|
Reverse Voltage (V) Max.
|
Operation tem- perature oC
|
|
SM446
|
4.46
|
PCB, moulded
optical epoxy
|
4.8 x 2.5 x 0.6
|
6
|
-40…+85
|
|
Part number
|
Spectral response range
|
Peak response wavelength,
λp
|
Photosensitivity
|
Dark current @ VR=10mV,
Max.
|
Capacitance
@
VR=0V,
f=100kHz, Typ.
|
Noise equiva- lent power NEP @ λp Typ.
|
|
λp
Typ.
|
540
nm Typ.
|
630
nm Typ.
|
940
nm Typ.
|
|
nm
|
nm
|
A/W
|
A/W
|
A/W
|
A/W
|
pA
|
pF
|
W/√Hz
|
|
SM446
|
400-1100
|
970
|
0.71
|
0.40
|
0.47
|
0.70
|
50
|
80
|
1.1x10-14
|
Note: All data are specified at typical
ambient temperature (25°C) and under normal working condi- tions.
Spectral
Response (Typical)
Dark Current and
Capacitance vs Reverse Bias (Typical)
Packaging
and Dimensions
