251AS101KDS

100 & 200 Series Bulk Ceramic Axial Lead Resistors 100 & 200 Series Axial Leaded Non-Inductive Bulk Ceramic Resistors provide excellent performance where high peak power or high-energy pulses must be handled in a small size. The advantage of the bulk construction is that it produces an inherently noninductive resistor; and it allows energy and power to be uniformly distributed through the entire ceramic resistor body — there is no film or wire to fail. We offer a full line of rugged, reliable ceramic resistors — including custom designs. Three distinctly different ceramic materials are available in each size to afford the designer with unique components to meet the most demanding requirements. As alternatives to hard to find carbon composition resistors, composition resistors can be used as drop-in replacements for 1 and 2 watt sizes. Much larger sizes, up to 70 watts in a single component, are available for new or re-designs where an array of smaller resistors may have been previously required. F e at u r e s • Non-inductive “bulk ceramic” resistor • Uniform distribution of energy throughout resistor body • Replacement of Carbon Composition Resistors • Large peak energy in small size • High power dissipation (Type SP) • High voltage and energy absorption (Type AS) • Through-hole or post mountable M at e r i a l T y p e s Type SP Withstands high operating temperatures resulting in high power dissipation. Maximum continuous operating temperature is specified at 350°C. This type is suitable for use in oil without an oil-resistant coating. Appplications Type AS Best suited for high energy and voltage pulse applications. Maximum continuous operating temperature is specified at 230°C. The standard dielectric coating is recommended for use in air, and the oil-resistant coating is recommended for use in oil. • Soft Start/In-rush Limiters • RC Snubber Circuits • Spark-Gap Limiters • Parasitic Suppression • High Voltage Power Supplies • Pulse Waveform • EMI/EFI Test Circuits • RF Dummy Load Circuits • Capacitor Dump Circuits Type BA Best suited for high energy and voltage pulse applications where the required resistance value is above the resistance values available in Type SP and Type AS resistors. Maximum continuous operating temperature is specified at 230°C. The standard dielectric coating is recommended for use in air, and the oil-resistant coating is recommended for use in oil. Appplications • DC Coupling and Filter Cap Discharge • Voltage Balancing • Pre-charge / Inrush Limit • Voltage Divider • Filter • Snubber • Crowbar • Measuring • EMI / EFI Test Circuits • Test Loads (continued) 138 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 100 & 200 Series Bulk Ceramic Axial Lead Resistors S p e c i f i c at i o n s Series 231AS 231SP 231BA 233AS 233SP 233BA 234AS 234SP 234BA 250AS 250SP 250BA 251AS 251SP 251BA 102AS 102SP 102BA 252AS 252SP 252BA 104AS 104SP 104BA 254AS 254SP 254BA 106AS 106SP 106BA 256AS 256SP 256BA 109AS 109SP 109BA 259AS 259SP 259BA Res. range Avg. power Rated peak (Ω) rating1 (W) energy2 (J) 25-6,350 1.5 75 1-1,000 2.5 15 6K-390K 1.2 35 6-1,800 2 170 1-120 7 20 1.8K-150K 1.6 80 12-5,000 3 275 1-330 10 30 4K-300K 2.4 140 4-1,200 2.5 260 1-150 8.5 20 1K-130K 2 130 8-2,300 3.5 400 1-330 12 30 2K-190K 3 200 30-9,000 5 600 1-700 15 50 9K-700K 4 300 20-5,800 6 900 1-460 18 75 5K-450K 5 450 55-18,000 9 1,200 2-1,500 25 95 18K-1M 7 600 36-12,000 11 1,800 2-1,000 31 150 12K-970K 9 900 90-30,000 13 1,900 3-2,400 36 155 30K-1M 10 1000 60-20,000 16 2,900 2-1,600 45 240 20K-1M 13 1500 150-48,000 20 3,000 4-3,800 55 250 48K-1M 16 1500 100-32,000 25 4,600 3-2,500 70 380 30K-1M 20 2300 Rated peak Rated peak Typ. body voltage2 current3 (A) weight4 (g) 1,500V 90 0.44 375V 350 0.44 1200V 1,100V 150 1.2 375V 550 1.2 900V 2500V 150 1.9 500V 550 1.9 2,000V 1,500V 190 1.9 375V 700 1.5 1,200V 2,500V 190 3.0 500V 700 2.4 2,000V 3,000V 150 3.8 1,000V 550 3.8 2,400V 3,000V 190 6.0 1,000V 700 4.8 2,400V 9,000V 150 7.6 3,600V 550 7.6 7,000V 9,000V 190 12.0 3,600V 700 9.6 7,000V 15,000V 150 11.4 5,000V 550 11.4 12,000V 15,000V 190 18.0 5,000V 700 14.4 12,000V 25,000V 150 17.1 8,800V 550 17.1 20,000V 25,000V 190 27.0 8,800V 700 21.6 20,000V 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 139 1. @ 40°C Ambient. Derate linearly to 0 Watts at 230°C for Type AS and BA. Derate linearly to 0 Watts at 350 °C for Type SP. 2. Allowable peak energy/voltage will depend on the resistance value and pulse width. Energy ratings are based on pulse