Ultra Precision Resistors UltraMetal Precision Film Resistors Metal Precision Film Resistors Ultra Welwyn Components Welwyn Components Metal Filmdown Resistors • Tolerance to 0.01% CAR series 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 High reliability • Low TCR’s Non standard values available • reliability Superior moisture performance • High Highest stability metal film available • moisture performance Non standard values available • Superior sets and networks • Matched 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 (RoHS2) Electrical Data Electrical Data Power rating at 70°C watts Power rating at 85°C watts CAR5 Resistance Power rating at 70°C range ohms 0.25 watts Limiting Power rating at 85°C element voltage watts TCR (20 to +70°C) Resistance range ohms Resistance Limiting element voltagetolerance Standard values TCR (20 to +70°C) volts 0.125 CAR7 0.33 0.5 0.25 CAR7 0.33 Notes 10R0 to 0.55M 350 0.33 500 10(T),10R0 15(Y), 10R05(V), to 5M to 25(D), 10M 50(C) See tolerance/TCR 0.01(L), 350 0.02(P), 0.05(W), 0.1(B), 500 0.25(C), 0.5(D) & 1(F) E24, E96 preferred 5(V), 10(T), 15(Y), 25(D), 50(C) Ambient temperature range Standard values °C/watt 110 70 °C Table of Resistance Restrictions Ambient temperature range combinations See tolerance/TCR below 60 combinations °C E24, E96 preferred -55 to +155 Thermal impedance Notes 10R0 to 10M °C/watt 110 70 & 1(F) 0.01(L), 0.02(P), 0.05(W), 0.1(B), 0.25(C), 0.5(D) % below 60 -55 to +155 Table ofTCRResistance CAR5 Restrictions ppm/°C 0.01-0.02% 0.25 0.125 CAR6 250 0.25 250% ppm/°C Thermal impedance Resistance tolerance CAR6 10R0 0.33 to 3M ppm/°C 10R0 to 3M volts CAR5 Tolerance CAR6 CAR7 0.05% 0.1-1% 0.01/0.02% Tolerance 0.05% 0.1-1% 0.01-0.02% 0.05% 0.1-1% 50 to 300k CAR5 10 to 500k 10 to 500k 50 to 500k CAR6 10 to 500k 10 to 500k 50 to 750k CAR7 10 to 750k 10 to 750k 10 50 to 300k ppm/°C 0.01-0.02% 0.05% 100.1-1% to 1M 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 51 5015 to 300k 50 10toto300k 500k 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 5025 to 300k 5010 to to 300k 1M 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 15 5050 to 300k 5010 to to 300k 1M 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 25 50 to 300k 10 to 1M 10 to 1.5M 50 to 500k 10 to 1M 50 50 to 300k 50 to 500k 10 to 1M TCR 51 10 toData 1M 10 to 3M Physical Note1: Based on sampling. 100% screened product is available. Dimensions (mm) and Weight (g) Physical Data PCB Dimensions (mm) and Weight (g) Type L Max D Max CAR5 7.2 2.5 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 CAR7 15.5 5.5 Type f min 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 d nom. PCB 30 mounting 0.6 Min mounting Bend Wt. centres Min Radius nom. 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 30 0.6 12.7 0.6 0.40 30 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 © 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: [email protected] · 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 © Welwyn © TT Electronics Telephone: +44 (0) plc 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: [email protected] · Website: www.welwyn-tt.com A subsidiary of TT electronics plc www.ttelectronics.com/resistors 11.17 178 Ultra UltraPrecision Precision Metal Resistors MetalFilm Film Resistors Welwyn Components CAR series CAR series Ultra Precision Metal Film Resistors Construction Marking Components Type reference, TCR code,Welwyn resistance value and tolerance code. The resistance value marking conforms to IEC 62. 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 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 Values 10 ≤ 250k Values > 250k Actual Performance Actual Performance Maximum Typical Maximum Typical 0.05 0.02 0.25 0.05 Values > 250k 1 0.2 Load at rated power : 1000 hrs at 70°C (or 85°C) ∆R % Dry heat : 1000 hrs at 155°C ∆R % Values 0.15 10 ≤ 250k 0.08 ∆R % Actual 0.01 Performance 0.003 Shelf life : 12 months at room temperature Actual 0.04 Performance 0.02 MaximumZero at 15Typical 5°C Derating from rated power at 70°C (or 85°C) MaximumZero at 15 Typical 5°C Load at rated : 1000 hrs at 70°C (or 85°C) Short termpower overload ∆R ∆R % % 0.05 0.01 0.02 0.001 0.25 0.08 0.05 0.01 DryClimatic heat : 1000 hrs at 155°C ∆R ∆R % % 0.15 0.05 0.08 0.02 1 0.2 0.20.05 Shelf Clilife mat:ic12 camonths tegory at room temperature ∆R % 0.01 DerLong ating term from damp rated p ower at 70°C (or 85°C) heat 55/155/50.003 6 Zero at 155°C 0.05 ∆R % 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 C lim atic categand ory bump Vibration 55/155/56 0.02 ∆R % Long Noterm ise (indamp a decheat ade of frequency) ∆R % µV/V 0.050.2 Temperature Voltage corapid efficiechange nt of resistance ∆Rp% pm/V Resistance to solder heat ∆R % Vibration and bump ∆R % Application Notes Noise (in a decade of frequency) µV/V Voltage coefficient of resistance ppm/V 55/155/56 0.06 0.002 0.02 0.02 0.03 0.2 1 0.040.3 0.02 <0.05 0.250.2 0.05 <0.05 0.02 0.003 0.05 0.005 0.002 0.06 0.02 1 0.1 0.02 Figure 1 0.2 0.3 Resistors can be supplied matched for tolerance and TCR down to ±0.005% and ±1ppm/°C, respectively, either as separate resistors or pre-assembled and encapsulated within a Figure 1 plastic box. Packaging 0.03 0.050.1 <0and .05 CAR6 standard 0.2 packing is<0in .05 CAR5 tape, as5 shown below, whilst CAR7 is bulk packed. Application Notes Resistors can be supplied matched for tolerance and TCR The individual resistors within a set or module can be down to ±0.005% and ±1ppm/°C, respectively, either as manufactured with a tolerance of ±0.01% and a TCR of separate resistors or pre-assembled and encapsulated within a ±5ppm/°C. plastic box. The individual resistors within a set or module can be manufactured with a tolerance of ±0.01% and a TCR of ±5ppm/°C. General Note f1 5 f2 52 6 Body location f f1 – f 2 ≤ 1.4 mm f2 52 6 1 6 Body location f 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. © Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 © TT Electronics plc 822181 · Facsimile: +44 (0) 1670 829465 · Email: [email protected] · Website: www.welwyn-tt.com www.ttelectronics.com/resistors 11.17 179 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 P I 4 5 3 Type TCR (ppm/°C) CAR5 CAR6 CAR7 K V = ±5 T = ±10 Y = ±15 D = ±25 C = ±50 4 5 Value Tolerance Finish, Screening & Packing 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% 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 © TT Electronics plc 11.17