SMP400G-CE MECHANICAL DATA Dimensions in mm. P.I.N. PHOTODIODE FEATURES Ø 5.4 • LARGE NUMERICAL APERTURE FOR EASE OF COUPLING TO FIBRE OPTIC CABLES Ø 4.7 • LOW NOISE • WIDE INTRINSIC BANDWIDTH 4.3 • EXCELLENT LINEARITY 13 nom. • LOW LEAKAGE CURRENT Ø 0.45 Lead • LOW CAPACITANCE • TO-46 HERMETIC METAL CAN PACKAGE 2.54 Case 3 2 1 Cathode Anode DESCRIPTION 3 2 The SMP400G is a Silicon P.I.N. photodiode specifically designed for optical fibre communication. The device is incorporated in a compact, low profile, hermetic metal can package. 1 A glass bead lens incorporated into the TO-46 case provides an efficient optical design. This affords substantial mis-alignment between the device and a fibre optic cable without degrading the coupling efficiency. TO-18 Package Pin 1 – Anode Pin 2 – Cathode Pin 3 – Case The electrical terminations are via three leads of diameter 0.02" on a pitch of 0.1". Both cathode and anode connections to the photodiode are electrically isolated from the package. 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 SMP400G-CE CHARACTERISTICS (Tamb=25°C unless otherwise stated) Characteristic Test Conditions. λ at 900nm Responsively Min. Typ. 0.45 0.55 A/W 0.62 mm2 Active Area Dark Current Breakdown Voltage Capacitance 1V Reverse 0.1 1.0 E = 0 Dark 10V Reverse 0.5 2.5 E = 0 Dark 10µA Reverse E = 0 Dark 0V Reverse 8 12 E = 0 Dark 20V Reverse 1.5 2.5 60 900nm 1 90 0.9 80 70 60 50 40 30 20 Relative Capacitance (%) 100 90 Relative Responsivity (%) 100 80 70 60 50 40 30 20 10 10 0 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 80 V pF ns 7.2 0.45 10 20 W/√Hz 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 z Axial Displacement (mm) Units nA 4 50Ω NEP Relative Responsivity (%) E = 0 Dark 30V Reverse Rise Time Max. 0.1 0.2 0.3 0.4 0.5 0 r Radial Displacement (mm) 30 Reverse Bias(V) 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