Ultra Precision UltraMetal Precision Film Resistors Ultra Precision Film Resistors Metal FilmMetal Resistors Resistors Welwyn Components Welwyn Components CAR series * Tolerance down to 0.01% CAR series * Low TCR's CAR series * Tolerance down to 0.01% * High reliability Low TCR's * Tolerance to 0.01% Superior moisture performance * down HighTCR's reliability * Low * Non standard values available reliability Superior moisture performance * High Highest stability metal film available * moisture performance Non standard values available * Superior Matched sets and networks * Non standard values available * Highest stability metal film available Highest stability metal film available Matched sets and networks * Matched sets and networks All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3) Electrical Data Electrical Data Power rating at 70C watts Power rating at 85C watts CAR5 Resistance Power rating at 70C range watts ohms 0.25 Limiting Power rating at 85C element voltage watts volts 0.125 TCR (20 to +70C) Resistance range Resistance Limiting element voltagetolerance C/watt See tolerance/TCR combinations See tolerance/TCR below 60 combinations 70 below 60 -55 to +155 Tolerance CAR6 CAR7 0.05% 0.1-1% 0.01/0.02% Tolerance 0.05% 0.1-1% 0.01-0.02% 0.05% 10 to 500k 10 to 500k 50 to 300k CAR5 10 to 500k 10 50 to 300k ppm/C 0.01-0.02% 0.05% 100.1-1% to 1M 51 5015 to 300k 50 10toto300k 500k 10 5025 to 300k 5010 to to 300k 1M 15 5050 to 300k 5010 to to 300k 1M 25 50 to 300k 50 50 to 300k 0.1-1% 50 to 500k CAR6 10 to 500k 50 to 750k CAR7 10 to 750k 10 to 750k 10 to 1M 50 to 500k 0.01/0.02% 0.05% 100.1-1% to 1M 10 to 1M 50 to 750k 0.01-0.02% 0.05% 100.1-1% to 1M 10 to 1.5M 10 10 to to 1M 500k 10 50 to to 1M 500k 50 10toto500k 500k 10 10 to to 1M 500k 10 50 to to 1M 750k 50 10toto750k 750k 10 10 to to 1M 750k 10 to 3.5M 10 10toto1M 1M 1050toto1.5M 500k 5010 to to 500k 1M 10 10toto1M 1M 10 50 to to 3M 750k 5010 to to 750k 1M 10 10 to to 1M 1.5M 10 to 5M 10 10toto1M 1M 10 50 to to 3M 500k 5010 to to 500k 1M 10 10toto1M 1M 10 50 to to 5M 750k 5010 to to 750k 1M 10 10 to to 1M 3.5M 10 to 10M 10 to 1M 10 to 1.5M 50 to 500k 10 to 1M 10 to 1M 10 to 3M 50 to 500k 10 to 1M Physical Data Physical Data Dimensions (mm) and Weight (g) L Max D Max CAR5 7.2 2.5 f min CAR6 L Max 10.0 D Max 3.7 f min 30 d nom. CAR5 CAR7 7.2 2.515.5 305.5 CAR6 10.0 3.7 30 CAR7 15.5 5.5 30 10 to 3M 50 to 750k 10 to100% 1M screened 10 to product 5M Note1: Based on sampling. is available. 10 to 5M 50 to 750k 10 to 1M 10 to 10M Note1: Based on sampling. 100% screened product is available. Dimensions (mm) and Weight (g) Type 500 15,to25, 50 10R0 to 5M5, 10, 10R0 10M 110 Table ofTCRResistance CAR5 Restrictions Type 10R0 to 10M 350 0.33 C E24, E96 preferred -55 to +155 C Table of Resistance Restrictions 5 0.33 Notes 10R0 to 0.55M Notes 0.01, 0.02, 0.05, 500 0.1, 0.25, 0.5 & 1 350 Ambient temperature range TCR 0.25 CAR7 C/watt 1100.1, 0.25, 0.5 &70 0.01, 0.02, 0.05, 1 % Thermal impedance 1 0.125 CAR6 5, 10, 15, 25,E24, 50 E96 preferred Ambient temperature range Standard values ppm/C 0.01-0.02% 0.5 250 0.25 ppm/C Thermal impedance Resistance tolerance CAR7 0.33 250% volts Standard values TCR (20 to +70C) CAR6 0.25 10R0 0.33 to 3M ppm/C 10R0 to 3M ohms CAR5 d nom. PCB 30 mounting 0.6 PCB Min mounting Bend Wt. Radius nom. centres Min 10.2 Bend Wt.0.6 0.24 0.6 centres 12.7 Radius 0.6 nom. 0.40 0.630 10.20.8 18.4 0.6 0.241.2 1.15 0.6 12.7 0.6 0.40 0.8 18.4 1.2 1.15 d d D D L L f f General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyn's own data and is considered accurate at time of going to print. General GeneralNote Note (c) Welwyn Components Limited * Bedlington, Northumberland NE22 7AA, UK Welwyn Components reserves the right to make changes in product specification without notice or liability. A subsidiary of TT electronics plc BI Technologies IRC Welwyn TT Electronics reserves the right to make changes in product specification without notice or liability. Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com Allinformation information is subject to Electronics' Welwyn's own consideredaccurate accurateatattime timeofof going to print. All is subject to TT owndata data and and is is considered going to print. 178 Components Limited * Bedlington, Northumberland NE22 7AA, UK (c) Welwyn (c) TT Electronics Telephone: +44 (0) plc 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com A subsidiary of TT electronics plc www.ttelectronics.com/resistors 10.19 178 Ultra Precision Metal Film Resistors Ultra Precision Metal Film Resistors Welwyn Components CAR series CAR series Ultra Precision Metal Film Resistors Construction Marking Ceramic rods are coated with a metal film and plated steel CAR series caps are force fitted. A helical cut is used to adjust the film to its final value. Termination wires are welded to the caps and the resistor is Construction protected with a specially formulated epoxy coating. Ceramic rods are coated with a metal film and plated steel caps are force fitted. A helical cut is used to adjust the film to Terminations its final value. Material Solderable finish copper wire. Termination wires are welded to the caps and the resistor is Strength The terminations meet the requirements of protected with a specially formulated epoxy coating. IEC 68.2.21 Solderability The terminations meet the requirements of Terminations IEC 115-1, Clause 4.17.3.2 Material Solderable finish copper wire. Strength The terminations meet the requirements of IEC 68.2.21 Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2 Components Type reference, TCR code,Welwyn resistance value and tolerance code. The resistance value marking conforms to IEC 62. Marking Solvent Resistance Type reference, TCR code, resistance value and tolerance The body protection and marking are resistant to all normal code. industrial cleaning fluids suitable for printed circuits. The resistance value marking conforms to IEC 62. Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning fluids suitable for printed circuits. Performance Data Performance Data Load at rated power : 1000 hrs at 70C (or 85C) Load at rated power : 8000 hrs at 70C (or 85C) Dry heat : 1000 hrs at 155C Shelf life : 12 months at room temperature Deat ratrated ing frpower om rate: d1000 powehrs r aat t 770C 0 C (o r 885C) 5 C) Load (or Short term overload Load at rated power : 8000 hrs at 70C (or 85C) DryClimatic heat : 1000 hrs at 155C Shelf Clilife mat:ic12 camonths tegory at room temperature DerLong ating term from damp rated p ower at 70 C (or 85 C) heat Values 10 250k Values > 250k Actual Performance Actual Performance Maximum Typical Maximum Typical 0.05 0.02 0.25 0.05 R % Values R % 0.1 10 250k 0.04 R % 0.15 Actual Performance0.08 R % Maximum 0.01 0.003 Typical C R % 0.05 Zero at 1550.02 R R % % R R % % R % 0.10.01 0.05 0.15 0.01 C 0.25 Zero at 1550.05 0.08 0.5 0.10.01 1 0.2 0.20.05 0.001 0.04 0.02 0.08 55/155/50.003 6 Zero at 155 C 0.05 R % Values > 250k 0.1 0.5 1 Actual Performance0.2 0.04 0.02 Maximum Typical 0.04 55/155/50.02 6 Z0.2 ero at 155 C 0.02 0.05 Short term overload Temperature rapid change R R % % 0.01 0.04 0.001 0.02 0.08 0.25 0.01 0.05 Climatic Resistance to solder heat R R % % 0.05 0.02 0.02 0.003 0.20.05 0.05 0.005 Clim atic categand ory bump Vibration 55/155/56 0.02 R % 55/155/56 0.06 0.002 0.02 Long Noterm ise (indamp a decheat ade of frequency) R % V/V 0.050.2 0.02 0.03 0.2 1 Temperature Voltage corapid efficiechange nt of resistance Rp% pm/V 0.040.3 0.02 <0.05 0.250.2 0.05 <0.05 Resistance to solder heat R % 0.02 0.003 0.05 0.005 Vibration and bump R % 0.03 1 Application Notes Noise (in a decade of frequency) V/V Matched Sets ppm/V Resistors can be supplied matched for tolerance and TCR down to 0.005% and 1ppm/C respectively. Voltage coefficient of resistance Application Notes Figure 0.021 0.2 0.3 0.002 0.06 Packaging 0.02 0.1 CAR5 and CAR6 standard packing is in tape, as <0.05 0.2 <0.05 shown below, whilst CAR7 is bulk packed. 5 Figure 1 Matched Sets Resistors can be supplied matched for tolerance and TCR down to 0.005% and 1ppm/C respectively. 5 f2 f1 52 6 Body location f f1 1 6 - f 2 1.4 mm f2 52 6 Body location f General Note 0.050.1 1 6 - f 2 1.4 mm BI Technologies IRC Welwyn 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. (c) Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 (c) TT Electronics plc 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com www.ttelectronics.com/resistors 10.19 179 Ultra Precision Metal Film Resistors CAR series Ordering Procedure This product has two valid part numbers: European (Welwyn) Part Number: CAR5V-31K6PI (CAR5 with TCR 5ppm/C at 31.6 kilohms 0.02%, Pb-free) C A R 5 1 V - 3 1 2 1 6 3 2 V = 5 T = 10 Y = 15 D = 25 C = 50 P I 4 5 3 4 Value Tolerance E24 = 3/4 characters E96 = 4/5 characters R = ohms K = kilohms M = megohms L = 0.01% P = 0.02% W = 0.05% B = 0.1% C = 0.25% D = 0.5% F = 1% Type TCR (ppm/C) CAR5 CAR6 CAR7 K 5 Finish, Screening & Packing I = Standard packing & Pb-free SC = Standard packing & Pb-free with 5ppm/C screened PB = Standard packing & SnPb CAR5 Ammo Up to 5000/box CAR6 Ammo Up to 2500/box CAR7 Bulk 250/box USA (IRC) Part Number: CAR5LFV3162PA (CAR5 with TCR 5ppm/C at 31.6 kilohms 0.02%, Pb-free) C A R 5 L 1 F 2 V 3 1 3 6 2 4 P A 5 6 1 2 3 4 5 6 Type Termination TCR (ppm/C) Value Tolerance Packing CAR5 Omit for SnPb CAR6 LF = Pb-free CAR7 V = 5 T = 10 Y = 15 D = 25 C = 50 3 digits + multiplier L = 0.01% P = 0.02% R = ohms for values <100 ohms W = 0.05% B = 0.1% C = 0.25% D = 0.5% F = 1% 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. A B CAR5 CAR6 CAR7 Ammo up to 5000/box Ammo up to 2500/box Bulk 250/box BI Technologies IRC Welwyn www.ttelectronics.com/resistors (c) TT Electronics plc 10.19