SMP525G-FM
MECHANICAL DATA
Dimensions in mm.
P.I.N. PHOTODIODE
FEATURES
•
•
•
•
•
•
•
•
•
•
•
ASYMMETRIC RECEIVING ANGLES
VISIBLE AND UV BLIND
PHOTODIODE ISOLATED FROM PACKAGE
EXCELLENT LINEARITY
LOW NOISE
WIDE SPECTRAL RESPONSE
LOW LEAKAGE CURRENT
LOW CAPACITANCE
RG850 INTEGRAL OPTICAL FILTER
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
3
2
1
20
3.8 ± 0.2
DESCRIPTION
The SMP525G-FM is a Silicon P.I.N. photodiode
incorporated in a hermetic metal can package. The
electrical terminations are via two leads of diameter 0.018"
on a pitch centre diameter of 0.2". The can structure
incorporates an optical filter that only transmits infra-red
light. 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. 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-FM
Directional Characteristics
1
0.9
1
0.9
Directional Characteristics
Normalised Incident Power
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
0.8
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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