ULW2-33RJA25

Resistors Resistors UL Recognised UL Recognised Wirewound Resistors Wirewound Resistors ULWSeries Series ULW UL1412 recognised recognised fusible fusible resistor resistor ** UL1412 Failsafe mains fusing at 120 Failsafe mains fusing at 120 // 240Vrms 240Vrms Inrush and surge withstanding Inrush and surge withstanding UL94-V0 flameproof coating Surface mount ZI-form option * UL file number E234469. All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3) Electrical Data ULW2 / ULWP2R ULW3 ULW4 ULW5 2 3 4 5 15 20 25 10 Inrush / surge performance See Pulse Performance graphs Resistance range ohms TCR 1R0 to 100R ppm/°C ±200 250 Resistance tolerance 350 500 % UL recognised standard values 5 ohms Any value in the range 1R0 to 100R is recognised. E24 preferred 110 Thermal impedance Ambient temperature range 82 °C 62 54 -55 to +200 Physical Data Dimensions (mm) and weight (g) d nom PCB mount centres Min bend radius Wt. Nom Type L Max D Max f min ULW2 9.0 3.8 19.8 12.5 0.5 ULW3 14.5 5.8 24.6 20 1.1 ULW4 13 5.6 22.8 ULW5 16.5 7.2 23.6 0.8 19 22 1.2 1.0 d D L f 1.8 leadformed if required and packed. Marking General Note General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. © TT Electronics plc © TT Electronics plc BI Technologies Technologies IRC IRC Welwyn Welwyn BI www.ttelectronics.com/resistors www.ttelectronics.com/resistors 11.20 09.17 UL Recognised Resistors Wirewound Resistors UL Recognised Wirewound Resistors ULW Series ULW Series Terminations Material: Strength: Solderability: Hot tin dipped copper wire The terminations meet the requirements of IEC 68.2.21 The terminations meet the requirements of IEC 115-1 Clause 4.17.3.2 Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits. Flammability The resistor coating will not burn or emit incandescent particles under any condition of applied temperature or power overload. Performance Data Maximum* Typical Load at rated power (1000 hours @ 25°C) ΔR% 5 3 Short term overload (5 x Pr for 5 seconds) ΔR% 5 1 Pulse (see Pulse Performance graphs) ΔR% 5 2 Climatic ΔR% 5 2 Long term damp heat (56 days) ΔR% 5 1 Climatic category 55/200/56 Temperature rapid change ΔR% 5 1 Dry heat (1000 hours @ 200°C) ΔR% 5 3 ΔR% Vibration ΔR% Robustness & solder heat 5 1 5 1 * Addition of 0.01Ω applies Thermal Performance Body Temperature Rise 300 100 Temperature Rise (°C) Proportion of Rated Power (%) Derating Curve 80 60 40 20 250 50 100 150 200 250 100 50 300 TT Electronics reserves the right to make changes in product specification without notice or liability. TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. © TT Electronics plc © TT Electronics plc ULW4 ULW5 150 Am bient Tem perature (°C) General Note General Note ULW3 200 0 0 ULW2 / ULWP2R 0 0 1 2 3 4 5 Power (W) BI Technologies Technologies IRC IRC Welwyn Welwyn BI www.ttelectronics.com/resistors www.ttelectronics.com/resistors 09.17 11.20 Resistors UL Recognised Wirewound Resistors UL Recognised Wirewound Resistors ULWSeries Series ULW Pulse Performance 1.2/50μs Peak Voltage Limit (10 pulses at 10s intervals, ΔR