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| NTE5550 thru NTE5558 Silicon Controlled Rectifiers Description: The NTE5550 thru NTE5558 SCR's are designed primarily for half-wave AC control applications, such as motor controls, heating controls and power supply crowbar circuits. Features: D Glass Passivated Junctions with Center Gate Fire for Greater Parameter Uniformity and Stability. D Small, Rugged, Thermowatt Constructed for Low Thermal Resistance, High Heat Dissipation and Durability. D Blocking Voltage to 800 Volts D 300A Surge Current Capability Absolute Maximum Ratings: Peak Reverse Blocking Voltage (Note 1), VRRM NTE5550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V NTE5552 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V NTE5554 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400V NTE5556 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600V NTE5558 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800V Forward Current (TC = +85C), IT(RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25A (All Conduction Angles), IT(AV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16A Peak Non-Repetitive Surge Current (8.3ms), ITSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300A (1/2 Cycle, Sine Wave, 1.5ms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350A Forward Peak Gate Power, PGM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20W Forward Average Gate Power, PG(AV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5W Forward Peak Gate Current, IGM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +125C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5C/W Note 1. VRRM for all types can be applied on a continuous dc basis without incurring damage. Ratings apply for zero or negative gate voltage. Devices should not be tested for blocking capability in a manner such that the voltage supplied exceeds the rated blocking voltage. Electrical Characteristics: (TC = +25C unless otherwise noted.) Parameter Peak Forward Blocking Voltage, (TJ = +125C) NTE5550 NTE5552 NTE5554 NTE5556 NTE5558 Peak Forward or Reverse Blocking Current, (Rated VDRM or VRRM) TJ = +25C TJ = +125C Forward "ON" Voltage, (ITM = 50A, Note 2) Gate Trigger Current (Continuous DC), (Anode Voltage = 12Vdc, RL = 100) TC = +25C TC = -40C Symbol VDRM 50 200 400 600 800 IDRM, IRRM - - VTM IGT VGT VGD IH tgt tq - - dv/dt - 15 35 50 - - - V/s - - - - 0.2 - - - - - - 25 1 - 35 1.5 10 2 1.8 40 75 1.5 - 40 2 - - - - - - - - - - A mA V mA V V mA s s Min Typ Max Unit V Gate Trigger Voltage (Continuous DC) (Anode Voltage = 12Vdc, RL = 100, TC = -40C) Gate Non-Trigger Voltage (Anode Voltage = Rated VDRM, RL =100, TJ = +125C) Holding Current (Anode Voltage = 12Vdc, TC = -40C) Turn-On Time (ITM = 25A, IGT = 50mAdc) Turn-Off Time (VDRM = rated voltage) (ITM =25A, IR = 25A) (ITM =25A, IR = 25A, TJ = +125C) Critical Rate of Rise of Off-State Voltage (Gate Open, Rated VDRM, Exponential Waveform) Note 2. Pulse Test: Pulse Width 300s, Duty Cycle 2%. .420 (10.67) Max .110 (2.79) .147 (3.75) Dia Max .500 (12.7) Max .250 (6.35) Max .500 (12.7) Min .070 (1.78) Max Cathode .100 (2.54) Gate Anode/Tab |
Price & Availability of NTE5558
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