EBW Series Manganin/NiCr Current Sense The EBW Series are manufactured using electron beam welding technology. This allows the joining of different alloys with great accuracy and tolerance. The EBW Series have heavy copper connectors, excellent long term stability and low inductance. These components can tolerate soldering temperatures of 350C for 30 seconds or 250C for 10min. These can be mounted using re-flow soldering or welding on copper. The EBWA can handle a power of 5W up to 100A at 0.5mΩ. The EBWB can handle a constant power of 7W at 0.2mΩ and a continuous load of 180A at 0.2mΩ. c e r t i f i c at i o n s BN ES ISO 9001: 2008 ISO/TS 16949: 2009 A p p l i c at i o n s • Current sensors for hybrid power sources • Frequency converters • High current automotive applications. S E RI E S S P E CIFICATION S Model EBWA-M EBWA-N EBWB-M EBWB-N Power (W) 5 4 4 3 2.5 7 6 6 4 3.5 Resistance (mΩ) 0.5 1 2 3 4 0.2 0.5 1 2 3 characteristics Material Manganin Manganin NiCr Alloy NiCr Alloy NiCr Alloy Manganin Manganin NiCr Alloy NiCr Alloy NiCr Alloy TCR (20°C - 150°C) ±75ppm/°C ±60ppm/°C ±100ppm/°C ±100ppm/°C ±100ppm/°C ±100ppm/°C ±100ppm/°C ±120ppm/°C ±120ppm/°C ±120ppm/°C p e r f o r m a n c e d ata Tolerance ±1(F), ±2(G), ±5(J) Thermal Shock -65°C, 25°C, 125°C, 25°C 25cycles TCR 20°C-150°C Max. ±100ppm/°C (EBWA) Max. ±120ppm/°C (EBWB) Short Time Overload Rated Power X 5 for 5 secs. Resistance to Soldering Heat 350°C 30 sec. or 250°C 10 min. Moisture Resistance 90~98%RH,+25°C,+65°C,-10°C 10 cycles Operating -55°C to 170°C Temperature High Temperature Exposure 140°C for 250 hours Vibration High Frequency 15g 10 to 2000Hz 36 cycles Inductance Derating Load Life 90 min “ON” 30 min “OFF” for 2000 hours % Rated Power 85° (EBWA) 100 60 40 170° 20 0 4 (EBWB) 65° 80 0 Weight (g) 0.4081 0.1994 0.2726 0.1832 0.1363 1.5138 0.5652 0.8573 0.4287 0.2858 30 60 90 120 150 Resistor Surface Temp., oC 180 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] ±0.1% ±0.2% ±0.2% ±0.2% ±0.2% ±0.2% <3nH ±1.0% EBW Series Manganin/NiCr Current Sense P u l se e n e r g y / p o we r f o r c o n t i n u o u s o p e r a t i o n 1,000 10 100 1 Pulse Energy (J) 1000 10 1 EBWA: Max. curve is only valid for the resistance value 0.5m. The min. curve is only valid for the resistance value 4m. For other resistance values the area in between the max. and the min. curve is valid 100 EBWB 0.1 Power (W) 10,000 10,000 EBWB: Max. curve is only valid for the resistance value 0.2m. The min. curve is only valid for the resistance value 2m. For other resistance values the area in between the max. and the min. curve is valid 0.01 EBWA 0.1 0.001 0.01 0.0001 0.001 0.01 0.1 Time (msec.) 1 0.0001 100 10 dimensions (in. / mm) L +.008/-0" +.2/-0mm 0.197" ±.008 5mm ±0.2 Land Pattern Ohm Value max. 1.2mm trimming area W ±.012" ±.3mm L W EBWA-N 2mΩ 0.413 / 10.5 0.197 / 5 3mΩ 4mΩ 0.035 / 0.88 0.017 / 0.43 0.025 / 0.64 0.017 / 0.43 0.013 / 0.32 EBWB-M 0.2mΩ 0.598 / 15.2 0.295 / 7.5 0.059 / 1.5 0.5mΩ 0.022 / 0.56 EBWB-N 0.020" 0.5mm t 0.630" 16mm 0.220" 5.6mm Thickness "t" EBWA-M 0.5mΩ 0.413 / 10.5 0.197 / 5 1mΩ 0.344" / 8.75mm (0.244" / 6.2mm) 1mΩ 0.598 / 15.2 0.295 / 7.5 0.035 / 0.9 2mΩ 0.018 / 0.45 3mΩ 0.012 / 0.3 electron beam welding Tape and Reel EBWA EBWB 10 pitch cumulative tolerance on tape ±0.2 2.00mm ±.10 4.00mm ±.10 Ø1.50mm +10/-0 Ø1.50mm +10/-0 1.75mm ±.10 1.75mm ±.10 11.50mm ±.10 7.50mm ±.10 11.00mm ±.10 10 pitch cumulative tolerance on tape ±0.2 2.00mm ±.10 4.00mm ±.10 16.00mm ±.30 15.70mm ±.10 24.00mm ±.30 0.30mm ±.10 2.10mm ±.10 8.00mm ±.10 12.00mm ±.10 2.10mm ±.10 Reel: ~12.95" (329mm) 8.00mm ±.10 5.50mm ±.10 Qty. per reel: EBWA: 3000pcs EBWB: 2000pcs o r d e r i n g i n f o r m at i o n Standard Part Numbers EBWA-MR0005FE EBWA-MR0010FE EBWA-NR0020FE EBWA-NR0030FE EBWA-NR0040FE EBWB-MR0002FE EBWB-MR0005FE EBWB-NR0010FE EBWB-NR0020FE EBWB-NR0030FE RoHS Compliant EBWA-MR0020FET Series Electron Beam Weld Size Alloy Resistance M = Maganin N = NiCr 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] Tolerance Tape and reel F = 1% EBWA: 3000 pc/reel G = 2% EBWB: 2000 pc/reel J = 5% 5