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R1800 - HIGH VOLTAGE SILICON RECTIFIER (VOLTAGE RANGE 1200 to 2000 Volts CURRENT 0.2 to 0.5 Ampere)
R1800 - 500 Milliamp High Voltage Silicon Rectifier 1200 to 2000 Volts
R1800F - 500 Milliamp High Voltage Fast Recovery Silicon Rectifier 1200 to 2000 Volts