Thyristors 55 Amp Standard SCRs. Symbol Parameter Test Conditions Value Unit Repetitive Peak off-state/reverse Voltage 1600 V V DSM

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1 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 1 V Surge capability up to 52 Electrically isolated package KD -Package and UL Recognized for 25V RMS gency Recognitions gency gency File Number E71639 pplications Typical applications are C solid-state switches, industrial power tools, line rectification 5/Hz. Main Features Schematic Symbol Symbol Value Unit (RMS) 55 /V RRM 1 V K I GT 7 m G bsolute Maximum Ratings Symbol Parameter Test Conditions Value Unit /V RRM Repetitive Peak off-state/reverse Voltage 1 V V DSM /V RSM Non-repetitive peak off-state/reverse voltage 17 V (RMS) RMS on-state current T C = 55 C 55 (V) verage on-state current T C = 55 C 35 SM Peak non-repetitive surge current single half cycle; f = 5Hz; (initial) = 25 C single half cycle; f = Hz; (initial) = 25 C I 2 t I 2 t Value for fusing t p = 8.3 ms 1 2 s di/dt Critical rate of rise of on-state current 15 /μs I GM Peak gate current = C 3 P G(V) verage gate power dissipation = C 1 W T stg Storage temperature range - to 15 C Operating junction temperature range - to C 55 6

2 Electrical Characteristics ( = 25 C, unless otherwise specified) Symbol Test Conditions Value Unit I GT MX. 7 m V D = 12V; R L = 3 Ω V GT MX. 1.5 V dv/dt V D = 2/3 ; gate open; = C MIN. 2 V/μs V GD V D = ; R L = 3.3 kω; = C MIN..2 V I H = 5m (initial) MX. 2 m t q =.5; t p =5µs; dv/dt=5v/µs; di/dt=-3/µs TYP. 2 μs t gt I G = 2 x I GT ; PW = 15µs; = 11 TYP. 5 μs Static Characteristics Symbol Test Conditions Value Unit V TM = 11; t p = 3μs MX. 1.8 V = 25 C 1 μ I DRM / I RRM / V RRM MX. = C 8 m Thermal Resistances Symbol Parameter Value Unit R θ(j-c) Junction to case (C) 1. C/W Figure 1: Normalized DC Gate Trigger Current Figure 2: Normalized DC Gate Trigger Voltage 1.8 Ration of IGT/IGT(TJ = 25 o C) Ration of VGT/VGT(TJ= 25 o C).2

3 Figure 3: Normalized DC Holding Current Figure 4: On-State Current vs. On-State Voltage (Typical) 1 Ration of IH/IH(TJ= 25 o C) Intantaneous On-state Current ( ) mps Instantaneous On-state Voltage (v T ) Volts Figure 5: Power Dissipation (Typical) vs. RMS On-State Current Figure 6: Maximum llowable Case Temperature vs. RMS On-State Current 13 verage On-State Power Dissipation [P D(V )] - (Watts) RMS On-State Current [(RMS) ] - (mps) Maximum llowable Case Temperature (T C ) - C CURRENT WVEFORM: Sinusoidal LOD: Resistive or Inductive CONDUCTION NGLE: RMS On-State Current [(RMS) ] - mps Figure 7: Maximum llowable Case Temperature vs. verage On-State Current 13 Maximum llowable Case Temperature (T C ) - C CURRENT WVEFORM: Sinusoidal LOD: Resistive or Inductive CONDUCTION NGLE: verage On-State Current [(VE) ] - mps

4 Figure 8: Surge Peak On-State Current vs. Number of Cycles Peak Surge (Non-repetitive) On-state Current (SM ) mps Surge Current Duration - Full Cycles tp=1ms One cycle 1 1 SUPPLY FREQUENCY: 5 Hz Sinusoidal LOD: Resistive RMS On-State Current: [(RMS) ]: Maximum Rated Value at Specified Case Temperature Notes: 1. Gate control may be lost during and immediately following surge current interval. 2. Overload may not be repeated until junction temperature has returned to steady-state rated value. Design Considerations Environmental Specifications Careful selection of the correct component 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 component 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 C Blocking Temperature Cycling Temperature/ Humidity Resistance to Solder Heat Solderability Specifications and Conditions JESD22-18C, C for 168 hours JESD22-14D, M-151, 5 cycles; -5 C to +15 C; 15-min dwell-time EI / JEDEC, JESD hours; V - DC: 85 C; 85% rel humidity JESD22-B16C NSI/J-STD-2, category 3, Test Dimensions TO-218C (KD Package) Isolated Mounting Tab Common with Center Lead 2-R.5 Dimension Millimeters Inches Min. Typ. Max. Min. Typ. Max R H Max 4.2mm B B C D E G F F G C L P E H J CTHODE NODE GTE K J K D Note: Maximum torque to be applied to mounting tab is 7 in-lbs. ( Nm). L P R

5 Product Selector Part Number Gate Sensitivity Type Package 7m Standard SCR TO-218C Packing Options Part Number Marking Weight Packing Mode Base Quantity TP 4.8g Tube 45 (3 per tube) Part Numbering System Part Marking System S K6 55 KD TP DEVICE TYPE S: SCR PCKGING TYPE TP: Tube Pack VOLTGE RTING K2: V K6: 1V CURRENT RTING 55: 55 PCKGE TYPE KD: TO-218C (isolated) YMMXXX Date Code Marking Y:Year Code MM: Month Code XXX: Lot Serial Code Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at