OX/OY Series The OX/OY Series of fixed ceramic resistors are ideal for circuitry associated with surges, high peak power or high energy. They offer enhanced performance in high voltage power supplies, R-C snubber circuits, and inrush limiters. The OX/OY resistors can often replace carbon composition resistors which can be difficult to source. Ceramic Composition 10% Tolerance 1.496 (38.3 3) FEATURES Material Terminals: Solder-coated axial leads Coating: UL-94 V0 approved silicone Derating: Linear from 100% @ +70C to 0% @ +200C Electrical Tolerance: 10% standard Power Rating: Based on 70C free air rating. Temperature Coefficient: -1300 300ppm/C. Series OX OY Watts max.* 1 2 Resistance min. max. 3.3 100K 3.3 1M Length L max. 0.67 / 17.0 0.89 / 22.6 Ohms 3.3 3.9 4.7 5.6 6.8 8.2 10 12 15 18 22 27 33 39 47 56 68 Ohms 82 100 120 150 180 220 270 330 390 470 560 680 820 1,000 1,200 1,500 1,800 Part Number 1 Watt 2 Watt OX820K OY820K OX101K OY101K OX121K OY121K OX151K OY151K OX181K OY181K OX221K OY221K OX271K OY271K OX331K OY331K OX391K OY391K OX471K OY471K OX561K OY561K OX681K OY681K OX821K OY821K OX102K OY102K OX122K OY122K OX152K OY152K OX182K OY182K 0.60% R/R 10 Kohms 0.40% 1 Kohm 0.20% 100 ohms 1,000 10,000 20,000 Cycles 0.80% DC 14KV 1 sec. on 1 sec. off OX Series R/R 0.60% Ohms 2,200 2,700 3,300 3,900 4,700 5,600 6,800 8,200 10,000 12,000 15,000 18,000 22,000 27,000 33,000 39,000 47,000 Part Number 1 Watt 2 Watt OX222K OY222K OX272K OY272K OX332K OY332K OX392K OY392K OX472K OY472K OX562K OY562K OX682K OY682K OX822K OY822K OX103K OY103K OX123K OY123K OX153K OY153K OX183K OY183K OX223K OY223K OX273K OY273K OX333K OY333K OX393K OY393K OX473K OY473K Part Number Ohms 1 Watt 2 Watt 56,000 0X563K OY563K 68,000 OX683K OY683K 82,000 OX823K OY823K 100,000 OX104K OY104K 120,000 ------ OY124K 150,000 ------ OY154K 180,000 ------ OY184K 220,000 ------ OY224K 270,000 ------ OY274K 330,000 ------ OY334K 390,000 ------ OY394K 470,000 ------ OY474K 560,000 ------ OY564K 680,000 ------ OY684K 820,000 ------ OY824K 1 MEG ------ OY105K PERFORMANCE CHARACTERISTICS DC 20KV 1 sec. on 1 sec. off OY Series 100 Max Working volts 300 400 STOCK PART NUMBERS FOR STANDARD RESISTANCE VALUES Part Number 1 Watt 2 Watt OX33GK OY33GK OX39GK OY39GK OX47GK OY47GK OX56GK OY56GK OX68GK OY68GK OX82GK OY82GK OX100K OY100K OX120K OY120K 0X150K OY150K OX180K OY180K OX220K OY220K OX270K OY270K OX330K OY330K OX390K OY390K OX470K OY470K OX560K OY560K OX680K OY680K 0.80% 0 Diameter D 0.217 .05/5.51 0.276 .05/7.01 Lead Joules diameter max.** 0.031 / 0.8 50 0.031 / 0.8 80 * at 70C. **For a single impulse. RESISTANCE TO PULSE 0.00% D Dimensions (in. / mm) * Replaces 1 and 2 watt carbon composition resistors * Meets high energy density demands * High peak power * 10% Tolerance SPECIFICATIONS L Test OX OY Max Working Voltage 300V 400V Dielectric Strength 500V 700V Max Overload Voltage 600V 800V Max Pulse Voltage1 14KV 20KV Pulse Tolerance, 100 pulses 1240V @ 52F, 40J/ 35 sec. 1640V @ 52F, 70J/35 sec. Test Condition Maximum R Life Test MIL-STD-202, Method 108 5% Short Time Overload 2x rated V, 5 sec ON @ 70C (2% + 0.05ohm) Resistance to Pulse1 20,000 cycles 1 sec ON, 1 sec OFF 5% Thermal Shock MIL-STD-202, Method 107 (2% 0.05 ohm) Moisture Resistance 1000 hrs @ 40C, 90 - 95% RH 5% 1Related text, see figures left 10 Kohms 0.40% 0.20% 0.00% 1 Kohm 100 ohms 0 100 1,000 10,000 20,000 Cycles Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 * Tel. 1-866-9-OHMITE * Fax 1-847-574-7522 * www.ohmite.com * info@ohmite.com 49