HV250A

Gas Discharge Tubes High Performance Beta Range RoHS Greentube™ HV Series Gas Plasma Arresters ® The HV Series is a 2-terminal bi-directional, voltage triggered switch designed for the protection of high voltage circuits. Switching voltages for the devices are fixed depending on the part number selected. The gas plasma trigger technology offers very fast switching speeds, high current capability and very low leakage currents. Features • 2 terminal configuration. pr od uc OB th S as OL be ET en E: di sc on tin ue d • Very high Isolation up to the specified switching voltage. • Switching performance is virtually unaffected by changes in ambient temperature. • UL 1414 class Y2 rated. Listed under file number E56529. • Moisture resistance as per MIL-STD-202 method 106 Applications 8 +0.20 - 0.20 8 +0.20 - 0.20 0.8 +0.050 - 0.050 • To protect of high voltage circuits. • To provide isolation between chassis and ground. 8 +0.20 - 0.20 60.0 +4 Th is HV XXX A 8 +0.20 - 0.20 60.0 +4 HV XXX C ORDERING INFORMATION HV 275 Mechanical Specifications: Weight: Materials: Voltage (x10) Lead Form Device Marking: 1.42g (0.049oz.) Electrode Base: Copper alloy Electrode Plating material: Bright Sn Body: Ceramic Littelfuse ‘LF’ marking, voltage and product code A= Axial lead, tape & reel C= Core w w w. l i t t e l f u s e . c o m 8 GAS DISCHARGE TUBES (90-98%RH, 65˚C). • Tape and reel to EIA 481-1. 351 Gas Discharge Tubes Gas Plasma Voltage Dependent Switches RoHS Greentube™ HV Series Gas Plasma Arresters Device Ratings and Specifications DC Breakover Voltage (VBO) (1) Insulation Resistance (RS) (2) Max Capacitance (Co) (3) 2850 – 3500 V Max Impulse Breakover Voltage (IBO) (5) 3700 V 100 M1 1.0 pF Maximum Ratings: pr od uc OB th S as OL be ET en E: di sc on tin ue d Impulse Discharge Current (4) …………………………………………………… 3 kA, 10 shots Storage Temperature TSTG ……………………………………………………… -40 - +150˚C Operating Temperature ……………………………………………………… -40 - +150˚C Notes: (1) Measured @ 500 Volts / Second (2) Measured @ 1000 Volts DC (3) Measured @ 1 MHz, zero Volt bias (4) Using 8/20µs double exponential pulse Th is (5) Measured at 100 Volts/µs rate of rise 352 w w w. l i t t e l f u s e . c o m ®