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MODEL 261K Datasheet Hamamatsu R2868is a UV TRON ultravioletdetectorthat makes use of the photoelectric effect of metal and the gas multiplication effect. It has a narrow spectralsensitivity of185 t0 260 nm, being completely insensitive to visible light. Unlike semiconductor detectors, it does not require optical visible-cut filters, thus making it easy to use. In spite of its small size, the R2868 has wide angular sensitivity (directivity) and can reliably and quickly detect weak ultraviolet radiations emitted from flame due to use of the metal plate cathode (eg. it can detect the flame of a cigarette lighter at a distance of more than 5 m.). The R2868 is well suited for use in flame detectors and fire alarms, and also in detection of invisible discharge phenomena such as corona discharge of high-voltage transmission lines. MODEL 261K Price
MODEL 261K on stock 5.80 (.200) 7.62 (.300) 10.16 (.400) 17.70 (.500) 15.24 (.600) 17.75 (. 700) 22.86 (.900) 27.94 (1.100) 30.48 (1.2001 35.56 (1.400) 40.64 (1.600) 43.18 (1.700) 48.26 (1.900) 53.34 (2.100) 60.96 (2.400) 68.58 (2.700) 73.66 (2.900) 78.74 (3.100) Backplane Transceiver Logic (BTL) is a signaling standard that was invented and first introduced by National Semicon- ductor, then developed by the IEEE to enhance the perFor- mance of backplane buses. BTL transceivers feature low output capacitance drivers to minimize bus loading, a 1V nominal signal swing for reduced power consumption and receivers with precision thresholds for maximum noise im- munity. The BTL standard eliminates settling time delays that severely limit TTL bus performance, and thus provide signifi- cantly higher bus transfer rates. The backplane bus is in- tended to be operated with termination resistors (selected t match the bus impedance) connected to a 2.1V at both ends. The low voltage is typically lV. |