SMP550G-FM 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 • • • • • • • • • • 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 5.08 ± 0.2 3 2 DESCRIPTION 1 The SMP550G-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. TO-39 Package Pin 1 – Anode Pin 2 – Cathode Pin 3 – Case 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, isolated photodiode and optional screening mesh ensure a rugged device with a high degree of immunity to conducted and 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-FM 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 NEP V pF 9 50Ω ns 19x10-14 900nm 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° 0.2 10° 0.7 0.6 0.5 0.4 0.3 0.2 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 0 200 400 600 800 1000 1200 Wavelength (nm) Semelab plc. Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612. Prelim. 1/98