Teccor® brand Thyristors 55 Amp Standard SCRs SK655KD RoHS Description Excellent unidirectional switches for phase control applications such as heating and motor speed controls. Standard phase control SCRs are triggered with few milliamperes of current at less than 1.5V potential. Features & Benefits • RoHS compliant • Voltage capability up to 1600 V • Surge capability up to 520 A • Electrically isolated package “KD -Package” and UL recognized for 2500VRMS Agency Approval Agency Applications Agency File Number Typical applications are AC solid-state switches, industrial power tools, line rectification 50/60Hz. E71639 Main Features Symbol IT(RMS) VDRM /VRRM IGT Schematic Symbol Value Unit 55 A 1600 V 70 mA A K G Absolute Maximum Ratings Value Unit VDRM /VRRM Symbol Repetitive Peak off-state/Reverse Voltage Parameter 1600 V VDSM/VRSM Non-repetitive peak off-state/Reverse voltage 1700 V TC = 55°C 55 A A IT(RMS) RMS on-state current IT(AV) Average on-state current ITSM I2t di/dt IGM PG(AV) Tstg TJ SK655KD Peak non-repetitive surge current I2t Value for fusing Test Conditions TC = 55°C 35 single half cycle; f = 50Hz; TJ (initial) = 25°C 550 single half cycle; f = 60Hz; TJ (initial) = 25°C 660 tp = 8.3 ms 1800 A2s 150 A/μs Critical rate of rise of on-state current A Peak gate current TJ = 125°C 3 A Average gate power dissipation TJ = 125°C 1 W Storage temperature range -40 to 150 °C Operating junction temperature range -40 to 125 °C ©2015 Littelfuse, Inc Specifications are subject to change without notice. Revised: 08/20/15 Teccor® brand Thyristors 55 Amp Standard SCRs Electrical Characteristics (TJ = 25°C, unless otherwise specified) Symbol Test Conditions IGT VD = 12V; RL = 30 Ω VGT Value Unit MAX. 70 mA MAX. 1.5 V VD = 2/3 VDRM; gate open; TJ = 125°C dv/dt VGD MIN. 2000 V/μs VD = VDRM; RL = 3.3 kΩ; TJ = 125°C MIN. 0.2 V IT = 500mA (initial) MAX. 200 mA TYP. 20 μs TYP. 5 μs Value Unit IH IT=0.5A; tp=50µs; dv/dt=5V/µs; di/dt=-30A/µs tq IG = 2 x IGT; PW = 15µs; IT = 110A tgt Static Characteristics Symbol Test Conditions IT = 110A; tp = 380μs VTM IDRM / IRRM MAX. TJ = 25°C VDRM / VRRM MAX. TJ = 125°C 1.8 V 10 μA 8 mA Thermal Resistances Symbol Parameter Value Junction to case (AC) Rθ(J-C) Unit 1.0 Figure 1: Normalized DC Gate Trigger Current vs. Junction Temperature °C/W Figure 2: N ormalized DC Gate Trigger Voltage vs. Junction Temperature 2.0 2.0 1.8 1.6 Ration of VGT /VGT (TJ=125o C) Ration of IGT /IGT (TJ =125o C) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 1.2 0.8 0.4 0.2 0.0 -40 -15 10 35 60 85 Junction Temperature (TJ)-(o C) SK655KD 110 125 0.0 -40 -15 10 35 60 85 110 125 Junction Temperature (TJ)-(o C) ©2015 Littelfuse, Inc Specifications are subject to change without notice. Revised: 08/20/15 Teccor® brand Thyristors 55 Amp Standard SCRs Figure 3: Normalized DC Holding Current vs. Junction Temperature Figure 4: O n-State Current vs. On-State Voltage (Typical) 2.0 Intantaneous On-state Current (IT) – Amps 160 Ration of IH /IH (TJ=125o C) 1.6 1.2 0.8 0.4 0.0 -40 -15 10 35 60 85 140 120 100 110 125 80 60 40 20 0 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Instantaneous On-state Voltage (vT) – Volts Junction Temperature (TJ)-(o C) Figure 5: Power Dissipation (Typical) vs. RMS On-State Current Figure 6: M aximum Allowable Case Temperature vs. RMS On-State Current 130 120 50 Maximum Allowable Case Temperature (TC) - °C Average On-State Power Dissipation [PD(AV)] - (Watts) 60 40 30 20 10 110 100 90 80 70 60 CURRENT WAVEFORM: Sinusoidal LOAD: Resistive or Inductive CONDUCTION ANGLE: 180° 50 0 0 5 10 15 20 25 30 35 40 45 50 55 RMS On-State Current [IT(RMS)] - (Amps) 40 0 10 20 30 40 50 60 RMS On-State Current [IT(RMS)] - Amps Figure 7: Maximum Allowable Case Temperature vs. Average On-State Current Maximum Allowable Case Temperature (TC) - °C 130 120 110 100 90 80 70 60 CURRENT WAVEFORM: Sinusoidal LOAD: Resistive or Inductive CONDUCTION ANGLE: 180° 50 40 0 5 10 15 20 25 30 35 40 Average On-State Current [IT(AVE)] - Amps SK655KD ©2015 Littelfuse, Inc Specifications are subject to change without notice. Revised: 08/20/15 Teccor® brand Thyristors 55 Amp Standard SCRs Figure 8: Surge Peak On-State Current vs. Number of Cycles Peak Surge (Non-repetitive) On-state Current (ITSM) – Amps 560 SUPPLY FREQUENCY: 50 Hz Sinusoidal LOAD: Resistive RMS On-State Current: [IT(RMS)]: Maximum Rated Value at Specified Case Temperature tp=10ms One cycle 480 400 Notes: 1. G ate control may be lost during and immediately following surge current interval. 2. O verload may not be repeated until junction temperature has returned to steady-state rated value. 320 240 160 80 0 1 10 100 1000 Surge Current Duration - Full Cycles Design Considerations Environmental Specifications Careful selection of the correct device for the application’s operating parameters and environment will go a long way toward extending the operating life of the Thyristor. Good design practice should limit the maximum continuous current through the main terminals to 75% of the device rating. Other ways to ensure long life for a power discrete semiconductor are proper heat sinking and selection of voltage ratings for worst case conditions. Overheating, overvoltage (including dv/dt), and surge currents are the main killers of semiconductors. Correct mounting, soldering, and forming of the leads also help protect against component damage. Test Specifications and Conditions AC Blocking Temperature Cycling Temperature/ Humidity JESD22-A108C, 80% VDRM @125°C for 168 hours JESD22-A104D, M-1051, 50 cycles; -50°C to +150°C; 15-min dwell-time EIA / JEDEC, JESD22-A101 168 hours; 100V - DC: 85°C; 85% rel humidity Resistance to Solder Heat JESD22-B106C Solderability ANSI/J-STD-002, category 3, Test A Dimensions – TO-218AC (KD Package) — Isolated Mounting Tab Common with Center Lead 2- R0 .5 Dimension A H M .2 m m A B P F G R Φ 4 ax E C L K J SK655KD D Note: Maximum torque to be applied to mounting tab is 7 in-lbs. (0.8 Nm). Millimeters Min. Typ. 4.40 Inches Max. Min. 4.60 0.173 Typ. 0.181 Max. B 1.45 1.55 0.057 0.061 C 14.35 15.60 0.565 0.614 D 0.50 0.70 0.020 0.028 E 2.70 2.90 0.106 0.114 F 15.80 16.50 0.622 0.650 G 20.40 21.10 0.803 0.831 H 15.10 15.50 0.594 0.610 J 5.40 5.65 0.213 0.222 K 1.10 1.40 0.043 0.055 L 1.35 1.50 0.053 0.059 P 2.80 3.00 0.110 R 4.35 0.118 0.171 ©2015 Littelfuse, Inc Specifications are subject to change without notice. Revised: 08/20/15 Teccor® brand Thyristors 55 Amp Standard SCRs Product Selector Part Number Gate Sensitivity Type Package 70mA Standard SCR TO-218AC SK655KD Packing Options Part Number SK655KDTP Marking Weight Packing Mode Base Quantity SK655KD 4.8g Tube 450 (30 per tube) Part Numbering System Part Marking System S K6 55 KD TP DEVICE TYPE S: SCR VOLTAGE RATING K2: 1200V K6: 1600V CURRENT RATING 55: 55A PACKAGING TYPE TP: Tube Pack PACKAGE TYPE KD: TO-218AC (isolated) SK655KD ® YMMXXX Date Code Marking Y:Year Code MM: Month Code XXX: Lot Serial Code SK655KD ©2015 Littelfuse, Inc Specifications are subject to change without notice. Revised: 08/20/15