Surface Mounted Resistors Welwyn Components Resistors Make Possible Surface Mounted Surface Mounted Resistors CR Series Welwyn Components Resistors CR Series CECC released products 100% high temperature and overload screened CECC released products CR Series versions available for high reliability applications 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 Terminations available for wire bonding or soldering Resistance range 1 ohm to100M ohms versions available for high reliability applications Availa bleT inolerances sizes down down to 0503 to 0.1% Terminations available for wire bonding or soldering Solder terminations have a nickel barrier layer Available in sizes down to 0503 Resistance range 1 ohm to100M ohms ResistanceShorting range 1Links ohm available to100M ohms Tolerances down to 0.1% Tolerances down to 0.1% Solde r terminations have a nickel barrier layer Solder terminations have a nickel barrier layer Shorti ng Links available Shorting Links available Electrical Data All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2) Commercial CR0503 CR0805 CR1005 CR1206 CR2010 CR2512 Notes Power rating at 70C watts 0.063 0.125 0.125 0.25 0.5 1.0 Electrical Data Resistance range ohms 1R to 10M 1R to 100M 1R to 1M Limiting element voltage volts 50 100 150 200 400 500 Commercial CR0503 CR0805 CR1005 CR1206 CR2010 CR2512 Notes TCR -55 to +155C ppm/C <10 ohms 200: 10 to 1M ohms 100: >1M ohms 250 Power rating at 70C watts 0.063 0.125 0.125 0.25 0.5 1.0 Resistance tolerance % 0.1, 0.25, 0.5, 1, 2, 5 See table of value ranges Resistance range ohms 1R to 10M 1R to 100M 1R to 1M Ambient temperature range C -55 to 155 Limiting element voltage volts 50 100 150 200 400 500 TCR -55 to +155C ppm/C <10 ohms 200: 10 to 1M ohms 100: >1M ohms 250 CECC 40401-004 Requirements CR0805 CR1206 Resistance tolerance % 0.1, 0.25, 0.5, 1, 2, 5 See table of value ranges Power rating at 70C watts 0.125 0.25 Ambient temperature range C -55 to 155 Resistance range ohms 1R to 10M CECC 40401Limiting-004 Requirements element voltage volts CR0805 100 CR1206 200 TCR -55C to +125C ppm/C <10 ohms 200: 10 to 1M 100: >1M 200 Power rating at 70C watts 0.125 0.25 Resistance raTCRnge +20C to +70C ohms ppm/C 1R t<10o 10 ohmsM 200: 10 to 1M 50: >1M 100 Limiting elementResist avoltagnce teolerance volts % 100 2000.5, 1, 2, 5 See table of value ranges TCR -55C to +125C ppm/C <10 ohms 200: 10 to 1M 100: >1M 200 Ambient temperature range C -55 to +125 TCR +20C to +70C ppm/C <10 ohms 200: 10 to 1M 50: >1M 100 Resistance t oClEeCraCn c4e0401-008 Requirements% CR08005.5, 1, 2, 5 CR1206 CR2010 SeeCR 2table512 of value ranges Ambient temperature range C -55 to +125 Power rating at 70C watts 0.125 0.25 0.5 1.0 Resistance range ohms 1R to 10M 1R to 10M 1R to 1M 1R to 1M CECC 40401-008 Requirements CR0805 CR1206 CR2010 CR2512 Limiting element voltage volts 100 200 400 500 Power rating at 70C watts 0.125 0.25 0.5 1.0 TCR -55C to +155C ppm/C <10 ohms 200: 10 to 1M ohms 100: Resistance range ohms 1R to 10M 1R to 10M 1R to 1M 1R to 1M >1M ohms 250 Limiting element voltage volts 100 200 400 500 Resistance tolerance % 0.1, 0.25, 0.5, 1, 2, 5 See table of value ranges TCR -55C to +155C ppm/C <10 ohms 200: 10 to 1M ohms 100: Ambient temperature range C -55 to 155 >1M ohms 250 Resistance tolerance % 0.1, 0.25, 0.5, 1, 2, 5 See table of value ranges Requirements CECC 40401-003 CR0805 CR1206 Ambient temperature range C -55 to 155 Power rating at 70C watts 0.063 0.125 Resistance range ohms 1R to 3M 1R to 5M CECC 40401-003 Requirements CR0805 CR1206 Limiting element voltage volts 100 200 Power rating at 70C watts 0.063 0.125 TCR -55C to +125C ppm/C <5 ohms 500: 5 to 10 ohms 350: Resistance range ohms 1R to 3M 1R to 5M 10 to 3M ohms 100: >3M ohms 250 Limiting element voltage volts 100 200 Resistance tolerance % 0.25, 0.5, 1, 2, 5 See table of value ranges TCR -55C to +125C ppm/C <5 ohms 500: 5 to 10 ohms 350: Ambient temperature range C -55 to 125 10 to 3M ohms 100: >3M ohms 250 ResistanceThe tosele rtaabnlces ie ndicate the CECC spe%cification requirements, and these are met or 0e.xce25e,ded 0. b5,y t1he, 2 c,o r5responding CR series products See table of value ranges Ambient temperature range C -55 to 125 Values E24 & E96 preferred Any value to order These tables indicate the CECC specification requirements, and these are met or exceeded by the corresponding CR series products Thermal impedance C/watt 800 360 290 200 80 70 Mounted on custom designed PCBs Values E24 & E96 preferred Any value to order Thermal impedance C/watt 800 360 290 200 80 70 Mounted on custom designed PCBs General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyns own data and is considered accurate at time of going to print. A subsidiary of General Note TT electronics plc General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyns own data and is considered accurate at time of going to print. A subsidiary of Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 07 . 0711. 09 All information is subject to TT Electronics own data and is considered accurate at time of going to print. TT electronics plc www.ttelectronicsresistors.com Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK 17 Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 07 . 0711. 09 TT Electronics plc 06.15 17Surface Mounted Surface Mounted Resistors Make Possible Resistors CR Series Welwyn Components CR Series Physical Data Dimensions of Standard Styles (mm) & Weight (g) Wrap around Style L W T max A B C Wt T C A 0503 1.250.2 0.63.15 0.5 Not available 0.200.1 0.005 B C L W A 0805 2.00.2 1.250.15 0.6 0.30.15 0.9 min 0.30.1 0.009 T Wrap-around terminations 1005 2.50.3 1.250.2 0.7 0.40.15 0.015 Not available (3 faces) 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 Alternative styles for 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. 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 properties and solderability. They will withstand immersion in Terminations solder at 260C for 30 seconds. Planar (or single-sided) termination is gold and suitable for wire-bonding wrap-around is suitable for soldering. Marking All relevant information recorded on the primary package or reel. Performance Data CECC 40401-008 CECC40401-004 CECC40401-003 Actual Requirements Requirements Requirements Maximum Typical Load at rated power: 1000 hours at 70C R% 2 2 3M3 2 2 0.25 >3M3 3 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 Overload R% 0805:1 1206:0.5 0.5 2 1 0.1 Dry Heat: 1000 hours at UCT R% 2 1 3M3 2 to 10M 1 0.2 (125C for 003 & 004 - 155C for 008) >3M3 3 >10M 2 >10M 1 Long term damp heat R% 2 2 2 1 0.25 Temperature rapid change R% 0.5 0.5 1 0.25 0.05 Resistance to solder heat R% 0.5 0.5 2 0.25 0.05 Voltage proof volts 0805 : 200 1206 : 300 0503 : 100 2010 : 400 2512 : 500 All others : 500 Note: An 0.01 ohm addition to be added to the performance of all resistors <10 ohms Value Ranges (ohms) 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 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.com 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.ttelectronicsresistors.com TT Electronics plc 06.15