Surface Mounted Resistors Welwyn Components Resistors SurfacSurface Moune Mountteed Rd esistors CR Series CR Series CECC released products Resistors Welwyn Components 100% high temperature and overload screened CECC released products versions available for high reliability applications CR Series 100% high temperature and overload screened Terminations available for wire bonding or soldering CECC released products versions available for high reliability applications Available in sizes down to 0503 100% high temperature and overload screened Resistance range 1 ohm to 100M ohms Terminations available for wire bonding or soldering versions available for high reliability applications Tolerances down to 0.1% Availa ble in sizes down to 0503 Terminations available for wire bonding or soldering Solder terminations have a nickel barrier layer Resistance range 1 ohm to 100M ohms Available in sizes down to 0503 Shorting Links available ResistanceTolerances range down 1 tohmo 0.1% to 100M ohms Tolerances down to 0.1% Solde r terminations have a nickel barrier layer Solder terminations have a nickel barrier layer Shorti ng Links available ShortingEl Linksec availabletrical Data AllAll Pb-Pb-frfreeee partsparts ccomplyomply withwith EUEU DirDirectivectivee 2011/65/EU2011/65/EU amended amended b yb y(EU) (EU) 2015/863 2015/863 (R (RoHS3)oHS3) Commercial CR0503 CR0603 CR0805 CR1005 CR1206 CR2010 CR2512 Notes Power rating at 70C watts 0.063 0.1 0.125 0.125 0.25 0.5 1.0 Electrical Data Electrical Data Resistance range ohms 1R to 10M 1R to 100M 1R to 1M Limiting element voltage volts 50 75 100 150 200 400 500 Commercial CR0503 CR0603 CR0805 CR1005 CR1206 CR2010 CR2512 Notes Power rating atTCR 70 -55C to +155wattC s 0.06ppm/3 C 0.1 0.125 0.125 0.2 5 0.5 1.0 <10R: 200, 10R-1M0: 100, >1M0:250 Resistance rangReesistance tolerancohme s 1R to %10M 1R to 100M 0.1, 0.25, 01R.5 ,to 1 ,1M 2, 5 See table of value ranges Limiting element voltage volts 50 75 100 150 200 400 500 Ambient temperature range C -55 to 155 TCR -55 to +155C ppm/C <10R: 200, 10R-1M0: 100, >1M0:250 Resistance tolerance % 0.1, 0.25, 0.5, 1, 2, 5 See table of value ranges CECC 40401-004 Requirements CR0805 CR1206 Ambient temperature range C -55 to 155 Power rating at 70C watts 0.125 0.25 Resistance range ohms 1R to 10M CECC 40401-004 Requirements CR0805 CR1206 Limiting element voltage volts 100 200 Power rating at 70C watts 0.125 0.25 TCR -55C to +125C ppm/C <10 ohms 200: 10 to 1M 100: >1M 200 Resistance range ohms 1R to 10M TCR +20C to +70C ppm/C <10 ohms 200: 10 to 1M 50: >1M 100 Limiting element voltage volts 100 200 TCR -55C to +125ResistaCnce tolerappm/nce C % <10 ohms 200: 10 to 1M 100: >1M0 200.5, 1, 2, 5 See table of value ranges TCR +20C to +70C ppm/C <10 ohms 200: 10 to 1M 50: >1M 100 Ambient temperature range C -55 to +125 Resistance tolerance % 0.5, 1, 2, 5 See table of value ranges Ambient temperature range C -55 to +125 C ECC 4 0401-008 Requirements CR0603 CR0805 CR1206 CR2010 CR2512 Power rating at 70 C watts 0.125 0.25 0.5 1.0 0.1 C ECC 4 0401-008 Requirements CR0603 CR0805 CR1206 CR2010 CR2512 Resistance rang e ohms 1R to 10M 1R to 10M 1R to 1M 1R to 1M Power rating at 70 C watts 0.125 0.25 0.5 1.0 0.1 Limiting element voltag e volts 100 200 400 500 75 Resistance rang e ohms 1R to 10M 1R to 10M 1R to 1M 1R to 1M TCR -55C to +155C ppm/C <10R: 200, 10R-1M0: 100, >1M0:250 Limiting element voltag e volts 75 100 200 400 500 Resistance t olerance % 0.5, 1, 2, 5 0.1, 0.25, 0.5, 1, 2, 5 See table of value ranges TCR -55C to +155C ppm/C <10R: 200, 10R-1M0: 100, >1M0:250 Resistance t oleAramncbeient t emperature r% ange C0.5, 1, 2, 5 0.1, 0.25, 0.5, 1, 2, 5 -55 to 155 See table of value ranges Ambient t emperature r ange C -55 to 155 C ECC 4 0401-003 Requirements CR0805 CR1206 C ECC 4 0401-003 Requirements CR0805 CR1206 Power rating at 70 C watts 0.063 0.125 Power rating at 70 C watts 0.063 0.125 Resistance rang e ohms 1R to 3M 1R to 5M Resistance rang e ohms 1R to 3M 1R to 5M Limiting element voltag e volts 100 200 Limiting element voltag e volts 100 200 TCR - 55C t o + 125C ppm/C <5 ohms 500: 5 to 10 ohms 350: TCR - 55C t o + 125C ppm/C <5 ohms 500: 5 to 10 ohms 350: 10 to 3M ohms 100: >3M ohms 250 10 to 3M ohms 100: >3M ohms 250 Resistance t oleRraensicsetance t olerance % % 0.25, 0.5, 1, 2, 5 0.25, 0.5, 1, 2, 5 See table of value ranges See table of value ranges Ambient t emperature r ange C -55 to 125 Ambient t emperature r ange C -55 to 125 These tables indicate the CECC specification requirements, and these are met or exceeded by the corresponding CR series producst These tables indicate the CECC specification requirements, and these are met or exceeded by the corresponding CR series producst Values E24 & E96 preferred Any value to order Values E24 & E96 preferred Any value to order Thermal impedanc e C/watt 800 550 360 290 200 80 70 Mounted on custom Thermal impedanc e C/watt 800 550 360 290 200 80 70 Mounted on custom designed PCBs designed PCBs Zero-ohm rating A 1 1.5 2 3 Zero-ohm rating A 1 1.5 2 3 Zero-ohm residual resistance m <20 Zero-ohm residual resistance m <20 General Note 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. www.ttelectronics.com/resistors TT Electronics plc 06.18Surface Mounted Surface Mounted Resistors Resistors Welwyn Components CR SeriesCR Series Surface Mounted Resistors Welwyn Components CR Series Physical Data Physical Data Dimensions (mm) & Weight (mg) Dimensions of Standard Styles (mm) & Weight (g) Physical Data Wrap around Wrap around Dimensions of Standard Styles (mm) & Weight (g) Style L W T max C Wt 1 A B Wrap around Style L W T max A B C Wt T 0503 1.250.1 0.63.1 0.5Style L Not aW vailableT max A 0.200.1B C 1.5Wt C T A 0503 1.250.2 0.63.15 0.5 Not available 0.200.1 0.005 C 0503 1.250.2 0.63.15 0.5 Not available 0.200.1 0.005 A B C 0603 1.60.1 0.80.1 0.55 0.30.15 0.6 min 0.30.15 2.2 B L C W L A W 0805 2.00.2 1.250.15 0.6 0.30.15 0.9 min 0.30.1 0.009 A 0805 2.00.2 1.250.15 0.6 0.30.15 0.9 min 0.30.1 0.009 T T 0805 2.00.15 1.250.15 0.6 0.30.15 0.9 min 0.30.1 4.7 W rap-around terminations W rap-around terminations 1005 2.50.3 1.250.2 0.7 Not available 0.40.15 0.015 (3 faces) 1005 2.50.3 1.250.2 0.7 0.40.15 0.015 Not available (3 faces) 1005 2.50.2 1.250.2 0.7 Not available 0.40.15 6.5 L 1206 3.20.2 1.60.2 0.7 0.40.2 1.8 min 0.40.15 0.020 W L 1206 3.20.2 1.60.2 0.7 0.40.2 1.8 min 0.40.15 0.020 W Planar terminations 2010 5.10.3 2.50.2 0.7 0.60.3 3.0 min N/A 0.036 1206 3.20.2 1.60.2 0.7 0.40.2 1.7 min 0.40.15 8.5 Alternative styles for surface mounting resistors Planar terminations 2010 5.10.3 2.50.2 0.7 25120.60.6.50.3 33.03.20. min2 0.N/7A 0.60.0.0363 4.4 min N/A 0.055 Alternative styles for 2010 5.10.3 2.50.2 0.8 0.60.3 3 min 0.60.25 36 surface mounting resistors 2512 6.50.3 3.20.2 0.7 0.60.3 4.4 min N/A 0.055 This dimension determines the number of conductors which may pass under the surface mounted device. 2512 6.50.3 3.20.2 0.8 0.60.3 4.4min 0.60.25 55 This dimension determines the number of conductors which may pass under the surface mounted device. Construction Solderability Thick film resistor material, overglaze and organic protection Wrap-around terminations have an electroplated nickel barrier are screen printed on a 96% alumina substrate. and solder coating, this ensures excellent leach resistance Construction Solderability properties and solderability. They will withstand immersion in Terminations solder at 260C for 30 seconds. Thick film resistor material, overglaze and organic protection Wrap-around terminations have an electroplated nickel barrier Planar (or single-sided) termination is gold and suitable for are screen printed on a 96% alumina substrate. and solder coating, this ensures excellent leach resistance wire-bonding wrap-around is suitable for soldering. Marking properties and solderability. They will withstand immersion in All relevant information recorded on the primary package or reel. Terminations solder at 260C for 30 seconds. Performance Data Planar (or single-sided) termination is gold and suitable for CECC 40401-008 CECC40401-004 CECC40401-003 Actual wire-bonding wrap-around is suitable for soldering. Marking Requirements Requirements Requirements Maximum Typical All relevant information recorded on the primary package or reel. Load at rated power: 1000 hours at 70C R% 2 2 3M3 2 2 0.25 >3M3 3 Performance Data Shelf life: 12 months at room temp. R% - - - 0.1 0.02 Derating from rated power at 70C Zero at 155C Zero at 125C Zero at 125C CECC 40401-008 CECC40401-004 CECC40401-003 Actual Overload R% 0603, 0805:1 0.5 2 1 0.1 1206:0.5 Requirements Requirements Requirements Maximum Typical Dry Heat: 1000 hours at UCT R% 2 1 3M3 2 to 10M 1 0.2 Load at rated power: 1000 hours at 70C(125C fRo%r 003 & 004 - 1255C for 008) 2 3M3 2 >3M3 23 >10M 2 0.25 >10M 1 Long term damp heat R% 2 2 2 1 0.25 >3M3 3 Temperature rapid change R% 0.5 0.5 1 0.25 0.05 Shelf life: 12 months at room temp. R% - - - 0.1 0.02 Resistance to solder heat R% 0.5 0.5 2 0.25 0.05 0603:150, 0805:200, Derating from rated power at 70C Voltage proof Zero at 155C Zevroolt sat 125C Zer o at 125C 0503:100, 0603:300, 1206:300, 2010:400, 0805:200, 1206:300 All others: 500 2512:500 Overload R% 0603, 0805:1 0.5 2 1 0.1 1206:0.5 Note: An 0.01 ohm addition to be added to the performance of all resistors <10 ohms Dry Heat: 1000 hours at UCT R% 2 1 3M3 2 to 10M 1 0.2 Value Ranges (ohms) (125C for 003 & 004 - 155C for 008) >3M3 3 >10M 2 >10M 1 Tolerance % Long term damp heat R% 2 2 2 1 0.25 Size 5 2 1 0.5 0.25 0.1 Temperature rapid change R% 0.5 0.5 1 0.25 0.05 0503 1 to 10M 1 to 10M 10 to 10M 100 to 1M N/A N/A 1 to 10M 1 to 10M 1 to 10M 100 to 1M N/A N/A Resistance to solder heat 0603R% 0.5 0.5 2 0.25 0.05 0805 1 to 100M 1 to 50M 1 to 20M 10 to 10M 100 to 1M 100 to 1M 0603:150, 0805:200, Voltage proof volts 0503:100, 0603:300, 1005 1 to 100M 1 to 50M 1 to 20M 10 to 10M 100 to 1M 100 to 1M 1206:300, 2010:400, 0805:200, 1206:300 All others: 500 2512:500 1206 1 to 100M 1 to 50M 1 to 25M 10 to 10M 100 to 1M 100 to 1M 2010 1 to 1M 1 to 1M 1 to 1M 10 to 10M 100 to 1M N/A Note: An 0.01 ohm addition to be added to the performance of all resistors <10 ohms 2512 1 to 1M 1 to 1M 1 to 1M 10 to 10M 100 to 1M N/A Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Value Ranges (ohms) Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com Tolerance % Size 5 2 1 0.5 0.25 0.1 0503 1 to 10M 1 to 10M 10 to 10M 100 to 1M N/A N/A 1 to 10M 1 to 10M 1 to 10M 100 to 1M N/A N/A 0603 0805 1 to 100M 1 to 50M 1 to 20M 10 to 10M 100 to 1M 100 to 1M 1005 1 to 100M 1 to 50M 1 to 20M 10 to 10M 100 to 1M 100 to 1M 1206 1 to 100M 1 to 50M 1 to 25M 10 to 10M 100 to 1M 100 to 1M 2010 1 to 1M 1 to 1M 1 to 1M 10 to 10M 100 to 1M N/A 2512 1 to 1M 1 to 1M 1 to 1M 10 to 10M 100 to 1M N/A Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK General Note Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.comBI 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. www.ttelectronics.com/resistors TT Electronics plc 06.18