BHT18 ELECTRONIC LAMP BALLASTS RECTIFIER Reverse Voltage - 1100 Volts Forward Current - 1.0 Ampere Features The plastic package carries Underwriters Laboratory Flammability Classification 94V-0 Construction utilizes void-free molded plastic technique Low reverse leakage High forward surge current capability High temperature soldering guaranteed: 250 /10 seconds, 0.375 (9.5mm) lead length, 5 lbs. (2.3Kg) tension Mechanical Data DIM ENSIONS Case: DO-41 molded plastic body Terminals: Plated axial leads, solderable per MIL-STD-750, method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.012 ounce, 0.33 gram DIM inches Max. Min. Max. A 0.165 0.205 4.2 5.2 B 0.079 0.106 2.0 2.7 C 0.028 0.034 0.71 0.86 D 1.000 - 25.40 - Maximum Ratings and Electrical Characteristics Ratings at 25 ambient temperature unless otherwise specified. Symbols BHT18 Units Maximum repetitive peak reverse voltage VRRM 1100 Volts Maximum RMS voltage VRMS 770 Volts Maximum DC blocking voltage VDC 1100 Volts Maximum average forward rectified current 0.375" (9.5mm) lead length at TA=75 I(AV) 1.0 Amp Peak forward surge current 8.3mS single half sine-wave superimposed on rated load (MIL-STD-750D 4066 method) IFSM 30.0 Amps Maximum instantaneous forward voltage at 1.0A VF 1.0 Volts IR(AV) 30.0 A IR 1.0 30.0 A Typical reverse recovery time (Note 1) Trr 30.0 S Typical junction capacitance (Note 2) CJ 15.0 F 50.0 25.0 /W Maximum full load reverse current, full cycle average 0.375" (9.5mm) lead length at TA=75 Maximum DC reverse current at rated DC blocking voltage TA=25 TA=100 Typical thermal resistance (Note 3) Operating junction and storage temperature range R R JA JL TJ, TSTG -50 to +175 Notes: (1) Measured on Tektronix Type S recovery plug-in. Tektronix 545 Scope or equivalent, IFM=20mA, IRM=1mA (2) Measured at 1.0MHz and applied reverse voltage of 4.0 volts (3) Thermal resistance from junction to ambient and from junction to lead at 0.375 (9.5mm) lead length, P.C.B. mounted 1 mm Min. Note RATINGS AND CHARACTERISTIC CURVES 2