SMP550G-EK MECHANICAL DATA Dimensions in mm. P.I.N. PHOTODIODE FEATURES 3.8 ± 0.2 WINDOW Ø 5.9 ± 0.1 Ø 9.1 ± 0.2 Ø 8.1 ± 0.1 20 SENSITIVE SURFACE Ø 0.45 LEAD • • • • • • • • • EXCELLENT LINEARITY LOW NOISE WIDEST SPECTRAL RESPONSE · ENHANCED UV SENSITIVITY LOW LEAKAGE CURRENT LOW CAPACITANCE INTEGRAL OPTICAL FILTER OPTION note 1 TO39 HERMETIC METAL CAN PACKAGE EMI SCREENING MESH AVAILABLE Note 1 Contact Semelab Plc for filter options 5.08 ± 0.2 DESCRIPTION 2 1 TO-39 Package Pin 1 – Anode Pin 2 – Cathode & Case The SMP550G-EK 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 of 0.2". 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 across the infra-red to ultraviolet spectrum. Inclusion of a suitable optical filter into the package can produce a device that responds only to ultraviolet light. The metal can and optional screening mesh ensure a rugged device with a high degree of immunity to radiated electrical interference. 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 SMP550G-EK CHARACTERISTICS (Tamb=25°C unless otherwise stated) Characteristic Test Conditions. λ at 900nm Responsively Min. Typ. 0.45 0.55 A/W 5.19 mm2 Active Area Dark Current Breakdown Voltage Capacitance E = 0 Dark 1V Reverse 2 4 E = 0 Dark 10V Reverse 16 22 E = 0 Dark 10µA Reverse E = 0 Dark 0V Reverse 55 E = 0 Dark 20V Reverse 10 60 pF ns 19x10-14 900nm NEP V 9 50Ω Units nA 80 30V Reverse Rise Time Max. 0.45 W/√Hz Directional characteristics Directional Characteristics 80° 1 1 Angle from sensor to illumination 70° 0.9 60° 0.8 0.8 Normalised Incident Power 50° 40° 0.6 30° 0.4 20° 0.7 0.6 0.5 0.4 0.3 0.2 0.2 10° 0.1 0 0 0 0.2 0.4 0.6 0.8 0 1 10 20 30 40 50 60 70 80 90 Angle from sensor to illumination Normalised incident power Spectral Response Relative Responsivity (%) 100 80 60 40 20 0 0 Semelab plc. 200 400 600 Wavelength (nm) 800 Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612. 1000 1200 Prelim. 1/98