PTCEL www.vishay.com Vishay BCcomponents PTC Thermistors, Inrush current limiter and Energy Load-Dump FEATURES • High energy absorption levels up to 240 J • High number of inrush-power cycles: > 50 000 cycles • Highly resistant against peak-powers of up to 25 kW non-switching • Can handle high direct voltage up to 800 V • Self protecting in case of overload • No risk of over-heating • Rugged construction • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 QUICK REFERENCE DATA PARAMETER Resistance at 25 °C (R25) (1) Switching temperature Maximum inrush current Maximum AC voltage Maximum DC voltage (1) Operating temperature range Storage temperature range APPLICATIONS VALUE UNIT 60 to 500 Inrush current limiting and load-dump resistor in: 130 to 140 °C • Smoothing and DC-link capacitor banks 40 A • Power inverters 350 to 560 VRMS • Discharge - charge circuits 500 to 800 VDC -40 to 105 °C PTCEL thermistors of similar resistance and size may be used in series and parallel combinations to obtain higher energy absorption levels. PTCEL thermistors may not be used in series connections to obtain higher voltage levels. -40 to 165 °C Dissipation factor 11.5 to 15.5 mW/K Thermal time constant (still air cooling) 110 to 150 s Weight 3.2 to 5.0 g DESCRIPTION These PTC inrush current limiting or energy absorbing thermistors consist of a medium resistivity doped barium titanate ceramic with copper clad steel wires lead (Pb)-free soldered to the Ag metalized pellet. A high temperature silicone coating covers the ceramic body and is marked with the cold resistance value, logo, EL and date code. Note (1) Other resistance values and maximum operating voltages available on request. Matched resistance values available on request. PACKAGING PTC thermistors are available in 100 pieces (PTCEL13) or 50 pieces (PTCEL17) bulk packed or tape on reel option 500 pieces on request. ELECTRICAL DATA AND ORDERING INFORMATION PART NUMBER R25 () R25 TOL. (%) VMAX. (VRMS) VLINK MAX. (VDC) RMIN. < 1.5 VDC () IHOLD AT 25°C (mA) Cth (J/K) EMAX. 1 CYCLE AT 25°C (J) th (s) DISSIPATION FACTOR (mW/K) WEIGHT (g) PTCEL13R600LBE 60 30 350 500 32 120 1.45 150 110 11.5 3.2 PTCEL13R121MBE 120 30 440 625 64 85 1.45 150 110 11.5 3.2 PTCEL13R251NBE 250 30 480 680 130 60 1.45 150 110 11.5 3.2 PTCEL13R501RBE 500 30 560 800 260 42 1.45 150 110 11.5 3.2 PTCEL17R600MBE 60 30 440 625 32 140 2.3 240 150 15.5 5 PTCEL17R121NBE 120 30 460 650 64 100 2.3 240 150 15.5 5 Note • Tape on Reel version available on request. Other resistance values or max voltage levels available on request. Revision: 31-May-16 Document Number: 29165 1 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 PTCEL www.vishay.com Vishay BCcomponents OUTLINE AND DIMENSIONS in millimeters D T COMPONENT DIMENSIONS in millimeters PTCEL13 PTCEL17 D 13 max. 17 max. H1 17 max. 21 max. H2 3±1 3±1 d 0.6 ± 0.06 0.8 ± 0.08 L1 20 min. 20 min. F 5 ± 0.8 5 ± 0.8 T 7.0 max. 7.5 max. H3 H2 F L1 d REQUIRED NUMBER OF PTC THERMISTORS TO LIMIT CURRENT AND ABSORB ENERGY By using several PTC’s in a series / parallel network, the maximum current limitation and absorbed energy levels can be further optimized. For homogeneous current and energy distribution it is recommended to combine only PTCEL of the same size and matched resistance value. Energy absorption per PTC in a network depends on current distribution in the network and as such on the individual PTC resistance value. PTCEL thermistors might be used in a series connection to further lower the inrush current, but not to increase the maximum allowed voltage levels. Following formula may be used to calculate the minimum number of PTCEL thermistors required in a DC link or other capacitor bank application to properly charge or discharge a given amount of energy without follow current: 2 CxV N --------------------------------------------------------------2 x C th x T sw - T amb Notes • N is the number of PTCEL required in the network. • C is the total capacitor value to charge or discharge in F. • V is the maximum DC voltage on the capacitor C. • Cth is the thermal capacity of one PTC in [J/K] (see table). • Tsw is the minimum switching temperature of the PTCEL (130 °C). • Tamb is the maximum ambient temperature at which the PTC needs to operate. Revision: 31-May-16 Document Number: 29165 2 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 PTCEL www.vishay.com Vishay BCcomponents RESISTANCE vs. TEMPERATURE Vm 1.5 VDC MINIMUM PTC RESISTANCE UNDER PULSED VOLTAGE 0.80 108 0.75 PTCEL13R600LBE PTCEL13R121MBE PTCEL13R251NBE PTCEL13R501RBE PTCEL17R600MBE PTCEL17R121NBE 107 0.65 0.60 Rmin. (Vp) / R25 Resistance () 106 0.70 105 104 0.55 0.50 0.45 0.40 103 0.35 0.30 102 0.25 10 -50 -25 0.20 0 25 50 75 100 125 150 175 200 225 0 100 200 300 400 500 600 700 800 900 1000 VPTV-pulsed Temperature (°C) RESIDUAL CURRENT VS. VOLTAGE VMAX. DERATING VS. TAMB 100 120 100 PTCEL13R600LBE PTCEL13R121MBE PTCEL13R251NBE PTCEL13R501RBE PTCEL17R600MBE PTCEL17R121NBE I (mA ) Vmax. (%) 80 60 10 40 20 0 -50 -25 0 25 50 75 100 125 150 175 200 Tamb (°C) Revision: 31-May-16 1 100 1000 U (VRMS ) Document Number: 29165 3 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 PTCEL www.vishay.com Vishay BCcomponents CONSECUTIVE ENERGY LOAD-DUMPS AT DIFFERENT TAMB FOR PTCEL13 CONSECUTIVE ENERGY LOAD-DUMPS AT DIFFERENT TAMB FOR PTCEL17 10 25 °C Number of Consecutive Load-Dumps Number of Consecutive Load-Dumps 10 25 °C 55 °C 85 °C 55 °C 85 °C 105 °C 105 °C 1 10 100 Energy / Load-Dump (J) Revision: 31-May-16 1 10 100 Energy / Load-Dump (J) Document Number: 29165 4 For technical questions, contact: [email protected] THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. 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