PFR Vishay Foil Resistors High Precision Power Resistor with TCR of 0 25 ppm/C, Tolerance to 1 % and Power Rating to 12 W FEATURES * Temperature coefficient of resistance (TCR): 0 25 ppm/C (+ 25 C to + 125 C) * Tolerance: 1 %, 2 %, 5 % * Load life stability: 0.1 % (+ 70 C, 2000 h at rated power) * Resistance range: 1 m to 1 * Vishay Foil Resistors are not restricted to standard values, we can supply specific "as required" values at no extra cost or delivery (e.g. 0R5123 vs. 0R5) * Power rating: 2 W in free air, 12 W on heat sink * Non inductive, non capacitive design * Thermal finish available: lead (Pb)-free, tin/lead alloy * Rise time: 1 ns effectively no ringing * Thermal stabilization < 1 s APPLICATIONS * Current sensing in precise power supply etc. TABLE 1 - TCR, RESISTANCE RANGE, TOLERANCE, RATED POWER TCR + 25 C to + 125 C RESISTANCE RANGE RESISTANCE TOLERANCE RATED POWER at 70 C 25 ppm/C 100 m to 1 1 %, 2 %, 5 % (F, G, J) 2 W in free air, on heat sink 12 W (1) 50 ppm/C 1 m to < 100 m 1 %, 2 %, 5 % (F, G, J) 2 W in free air, on heat sink 12 W (1) Notes (1) 152.4 (L) x 101.6 (W) x 50.8 (H) x 1.0 (T) * For heat sinking an aluminum chassis in 152.4 (L) x 101.6 (W) x 50.8 (H) x 1.0 (T) mm shall be used TABLE 2 - CONFIGURATION L T W1 W2 D Cu Vishay PFR 0R0249 1.0 % 0835 W I l1 I1 E1 E2 V l a1 b1 a2 b2 F F F Document Number: 63136 Revision: 12-Nov-08 T1 t I R I2 mm inch L 19.0 0.5 0.748 0.020 W 22.0 0.5 0.866 0.020 W1 4.0 0.2 0.157 0.008 W2 4.0 0.2 0.157 0.008 T 4.0 0.2 0.157 0.008 T1 1.5 0.2 0.059 0.008 F 5.08 0.5 0.200 0.020 l 15.0 1.0 0.591 0.039 l1 3.0 0.2 0.118 0.008 t 0.8 0.1 0.031 0.004 a1 3.0 0.2 0.118 0.008 a2 2.0 0.2 0.079 0.008 b1 1.4 0.1 0.055 0.004 b2 1.0 0.1 0.039 0.004 DO 3.4 0.2 0.134 0.008 For any questions, contact: foil@vishay.com www.vishay.com 1 PFR Vishay Foil Resistors High Precision Power Resistor with TCR of 0 25 ppm/C, Tolerance to 1 % and Power Rating to 12 W FIGURE 2 - FREQUENCY + 70 C 1 m 200 + 155 C 5 m 10 m + 100 50 m R(AC)/R(DC) Percent of Rated Power FIGURE 1 - DERATING CURVE + 75 + 50 + 25 0 - 55 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 150 100 m 1 100 50 0 0.1 Ambient Temperature (C) 1 10 100 1000 Frequency (kHz) Temperature (C) FIGURE 4 - TEMPERATURE OF RESISTOR SURFACE 80 70 60 50 40 30 20 10 0 In Free Air On Aluminum Chassis Element Surface (23.8 C/W) Element Surface (4.2 C/W) 0 2 4 6 8 10 12 14 16 18 Applied Power (W) TABLE 3 - PERFORMANCE PARAMETERS Test Group I Max. rated operating temperature Working temperature range Maximum working current Test Group II Power conditioning Test Group III Low temperature storage Dielectric withstanding voltage Insulation resistance Low temperature operation Overload Moisture resitance Terminal strength Test Group IV Shock Vibration, high frequency Test Group V Life Test Group VI High temperature exposure Test Group VII Solderability Test Group VIII Thermal resistance to base plate Test Group IX Thermal EMF Test Group X Inductance www.vishay.com 2 TEST CONDITION MAXIMUM TYPICAL 70 C - 55 C to + 155 C 100 A 25 C, rated power, 96 h 0.05 0.01 - 55 C, no load, 24 h Atmospheric pressure, AC 500 V, 1 min DC 100 V, 1 min - 55 C, rated power Rated power x 5, 5 s + 65 C to - 10 C, 90 % to 98 % RH, rated power, 240 h 2.27 kg (5 lbs), 10 s 0.05 0.05 100 G, 6 ms, sawtooth wave, X, Y, Z, each 3 shocks 20 G, 10 Hz to 2000 Hz to 10 Hz, 20 min, X, Y, Z, each 4 h 0.05 0.05 0.01 0.01 70 C, rated power, 1.5 h, "ON" 0.5 h, "OFF" 2000 h 0.2 0.1 155 C, no load, 2000 h 0.2 0.1 0.01 0.01 over 10 000 M 0.05 0.01 0.05 0.01 0.1 0.05 0.05 0.01 245 C, 5 s over 95 % coverage between element surface and base plate 1.5 C/W 0 C to 100 C 0.1 V/C 1 m For any questions, contact: foil@vishay.com under 20 nH 7 nH Document Number: 63136 Revision: 12-Nov-08 PFR High Precision Power Resistor with TCR of 0 25 ppm/C, Vishay Foil Resistors Tolerance to 1 % and Power Rating to 12 W TABLE 4 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y09270R01000F9L (preferred part number format) DENOTES PRECISION VALUE AER* Y R= 0 = tin/lead 9 = lead (Pb)-free 1 to 999 = custom Y 0 9 2 7 0 R 0 1 0 0 0 F 9 PRODUCT CODE RESISTANCE TOLERANCE PACKAGING 0927 = PFR F = 1.0 % G = 2.0 % J = 5.0 % L = bulk pack L FOR EXAMPLE: ABOVE GLOBAL ORDER Y0927 0R01000 F 9 L: TYPE: PFR VALUES: 0.01 ABSOLUTE TOLERANCE: 1.0 % TERMINATION: lead (Pb)-free PACKAGING: bulk pack Note * For non-standard requests, please contact application engineering. Document Number: 63136 Revision: 12-Nov-08 For any questions, contact: foil@vishay.com www.vishay.com 3 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1