21
SE NSITIVE
SURF ACE
0.45
LEAD
20
3
.8
±
0
.2
9.1 ± 0.2
8.1 ± 0.1
WINDOW
5.9 ± 0.1
5.08 ± 0.2
SMP550G-EM
Prelim. 1/98
Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
MECHANICAL DATA
Dimensions in mm.
P.I.N. PHOTODIODE
DESCRIPTION
The SMP550G-EM 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 of 0.2". The can structure incorporates an optical
filter that only transmits infra-red light. The cathode of the
photodiode is electrically connected to the package.
The larger photodiode active area provides greater
sensitivity than the SMP400 range of devices, with a
corresponding reduction in speed. The photodiode
structure has been optimised for high sensitivity, light
measurement applications. The metal can and optional
screening mesh ensure a rugged device with a high
degree of immunity to radiated electrical interference.
TO-39 Package
Operating temperature range
Storage temperature range
Temperature coefficient of responsively
Temperature coefficient of dark current
Reverse breakdown voltage
-40°C to +70°C
-45°C to +80°C
0.35% per °C
x2 per 8°C rise
60V
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
FEATURES
VISIBLE AND UV BLIND
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
Pin 1 – Anode
Pin 2 – Cathode & Case