SMP525G-FK
MECHANICAL DATA
Dimensions in mm.
P.I.N. PHOTODIODE
FEATURES
•
•
•
•
•
•
•
•
•
•
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ASYMMETRIC VIEWING ANGLES
WIDEST SPECTRAL RESPONSE
ENHANCED UV SENSITIVITY
PHOTODIODE ISOLATED FROM PACKAGE
EXCELLENT LINEARITY
LOW NOISE
LOW LEAKAGE CURRENT
LOW CAPACITANCE
INTEGRAL OPTICAL FILTER OPTION note 1
TO39 HERMETIC METAL CAN PACKAGE
· EMI SCREENING MESH AVAILABLE
WINDOW
Ø 5.9 ± 0.1
Ø 9.1 ± 0.2
Ø 8.1 ± 0.1
SENSITIVE
SURFACE
Ø 0.45
LEAD
5.08 ± 0.2
20
3.8 ± 0.2
3
2
1
Note 1 Contact Semelab Plc for filter options
DESCRIPTION
The SMP525G-FK is a Silicon P.I.N. photodiode incorporated
in a hermetic metal can package. The package window has
greater ultra-violet light transmission, thus extending the useful
spectral range of the device. The electrical terminations are via
two leads of diameter 0.018" on pitch centre diameter of 0.2". The
photodiode is electrically isolated from the package, which has a
separate earth lead.
The photodiode active area provides asymmetric viewing
angles in two orthogonal directions. The photodiode structure has
been optimised for high sensitivity, asymmetric light measurement
applications across the infra-red to ultra-violet spectrum. Inclusion
of a suitable optical filter into the package can produce a device
that responds only to ultra-violet light. The metal can, isolated
photodiode and optional screening mesh ensure a rugged device
with a high degree of immunity to conducted and radiated
electrical interference.
TO-39 Package
Pin 1 – Anode
Pin 2 – Cathode
Pin 3 – Case
ABSOLUTE MAXIMUM RATINGS
(Tcase = 25°C unless otherwise stated)
Operating temperature range
Storage temperature range
Temperature coefficient of responsively
Temperature coefficient of dark current
Reverse breakdown voltage
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
-40°C to +70°C
-45°C to +80°C
0.35% per °C
x2 per 8°C rise
60V
Prelim. 1/98
SMP525G-FK
Directional Characteristics
1
0.9
1
0.9
Directional Characteristics
Normalised Incident Power
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
10
20
30
40
50
60
70
80
90
Angle from sensor to illumination
Normalised Incident Power
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
10
20
30
40
50
60
70
80
90
Angle from sensor to illumination
Directional characteristics
80°
70°
Directional characteristics
80°
70°
1
Angle from sensor
to illumination
1
Angle from sensor
to illumination
60°
0.8
60°
0.8
50°
0.6
50°
40°
30°
0.6
40°
30°
0.4
0.4
20°
0.2
20°
0.2
10°
10°
0
0
0.2
0.4
0.6
0.8
1
Normalised incident power
0
0
0.2
0.4
0.6
0.8
1
Normalised incident power
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 1/98
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