faceSurface Mount Mount sistorResistor es Wrap-around terminations for soldering Surface Mount * 0 ohm available *Resistor Shorting links available links available CR Series vailable Organic Protection Tin/lead Solder * ohms 1.0 ohms to 100M ohms s to 100MCR Series * Tolerance down to 0.25% e down tos* 0.25% 0 Solder ohm available terminations have a nickel barrier layer s Shorting links available erminations haveresistance a nickel barrier layer *s 1.0Any value available within specified range ohms to 100M ohms Wrap-around terminations for soldering Organic Protection Tin/lead Solder Thick Film Conductor stance value available within specified range s Tolerance down to 0.25% Nickel s Solder terminations have a nickel barrier layer Thick Film Conductor ical Data s Any resistance value available within specified range Power Rating at 70C (watts) Electrical Data Resistance Range (ohms) IRC 5% Type Tol. Power Rating at 2% 70C Tol. (watts) Nickel 0.5% 1% Tol. Tol. Limiting Thermal TCR -55C to Operating Limiting Thermal Impedance** Element TCR -55C to Temp. +125C Values Element Impedance** +125C Values Range 0.25%0.25%Voltage (C/watt) Voltage 0.5% (C/watt) (ppm/C) (ppm/C) (C) (volts) Tol.Tol. Tol. (volts) 1-20M 1-10M Operatin Temp. Range (C) Resistance Range (ohms) 5% Tol. 1% 2% Tol.Tol. <10 350; 0.1 CR0805 0.1 1-100M 1-50M CR1206 0.25 1-100M 1-50M 1-20M 1-100M 1-50M 1-10M 1-20M 100-1M 100-1M 1-10M 100 100 100-1M <10 350;E24 & E96 360 preferred E24 & E96 10 to 100 10 to 100 200; 100 to 200 1M 100: (any value to 200; 100 to preferred 1-100M 1-50M 1-20M * For 10 devices mounted on 50x25mm p.c.b. area 1-10M ** Zerohm is100-1M available information is recorded on the primary package or reel. Load at rated power: 1000 hours at 70C R% Shelf life: 12 months at room temperature R% ical Data STYLE 0805 1206 Thickness: Planar 0.4 0.5 The thickness of0.4 these devices depend on the size of the c Wrap-around 0.5 The table below shows the standard substrate thickness us F = Wrap-around; G = Planar Gold. (mm). STYLE 0805 1206 Planar 0.4 0.5 Actual Wrap-around 0.4 0.5 Requirements Maximum Typical F = Wrap-around; G = Planar Gold. 1 0.25 0.1 zero at 125C Long term damp heat R% Temperature rapid change R% Voltage proof : 12 months at room temperature 200 Thickness: The thickness of these devices depend on the size of the chip. The table below shows the standard substrate thickness used (mm). 2 (5 above 3M3) Derating from rated power at 70C rated power: 1000 to hours 70C Resistance solderat heat order) >1M 250 Contruction: Thick film resistor material, overglaze and organic protection are screen s mounted on 50x25mm p.c.b. area ** Zerohm is available printed on a 96% alumina substrate. Terminations: Wrap-around terminations on CR resistors have good `leach' resistance n: properties. They will withstand immersion in solder at 260C for 30 seconds. sistor material, overglaze and organic protection are screen Marking: 96% alumina substrate. All relevant information is recorded on the primary package or reel. ns: d terminations on CR resistors have good `leach' resistance Data in solder at 260C for 30 They willElectrical withstand immersion -55 to 12 200 (any value to 1M 100: 200 -55 to 125 order) >1M 250 0.25 360 R% 2 Requirements R% 2 Actual 0.25 1 Maximum Typical 1 0.25 1 0.25 (5 above 2.5 3M3) 0.25 R% volts General Note from rated power atchanges 70C IRC reserves right to make in product specification without notice or liability. Generalthe Note 500 zero at 125C All information is subject to IRC's own data and is considered accurate at time of going to print. TT electronics reserves the right to make changes in product specification without notice or liability. Wire and FilmisTechnologies Division own s data 3OUTH and 3TAPLES s #ORPUSaccurate #HRISTI 4EXAS All information subject to TT electronics' is 3TREET considered at time53! of going to print. 4ELEPHONE s &ACSIMILE s 7EBSITE WWWIRCTTCOM R% m damp heat 0.1 2 1 A subsidiary of TT electronics plc www.bitechnologies.com www.irctt.com www.welwyn-tt.com #2 3ERIES )SSUE -ARCH 3HEET OF (c) TT electronics plc ture rapid change R% 1 0.25 10. 11 0.25 Surface Mount Resistor CR Series Surface Mount Resistor Physical Data Planar Terminations Wrap Around Terminations (3 Faces) C Res ist On T or op Face Res ist On T or op Face C T A L W B T A L W Dimensions (Inches and (mm)) Style L W T 0805 .079 .012 (2.0 0.3) .049 .008 (1.25 0.2) 1206 .126 .016 (3.2 0.4) .063 .008 (1.6 0.2) Wrap-around Planar Weight (g) A B* C .027 (.07) .012 .006 (0.3 0.15) .035 (0.9min) .012 .004 (0.3 0.1) 0.009 .027 (.07) .016 .008 (0.4 0.2) .067 (1.7min) .016 .006 (0.4 0.15) 0.020 * This dimension determines the number of conductors which may pass under the surface mounted device. APPLICATION NOTES: Mounting This chip resistor is ideally suited for handling by automatic methods due to its rectangular shape and the small dimensional tolerances. Electrical connection to a ceramic substrate or to a printed circuit board can be made by reflow soldering of wrap-around terminations (e.g. suffix `F' in CR0805F). The `F' terminations provide good leach properties and ensure reliable contact. Due to the robust construction, the resistor chip can be immersed completely in the solder bath for 30 seconds at 260C. This enables the resistor to be mounted on one side of a printed circuit board and other wire-leaded components on the other side. Wire and Film Technologies Division s 3OUTH 3TAPLES 3TREET s #ORPUS #HRISTI 4EXAS 53! 4ELEPHONE s &ACSIMILE s 7EBSITE WWWIRCTTCOM #2 3ERIES )SSUE -ARCH 3HEET OF 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. www.bitechnologies.com www.irctt.com www.welwyn-tt.com (c) TT electronics plc 10. 11 Surface Mount Resistor CR Series Surface Mount Resistor Ordering Data Specify type, reference, etc. as indicated in this example of a CR0805F 8.2M ohms 5% resistor with wrap-around terminations and packed in a plastic bag. Sample Part No. CR 0805 F 1005 J T IRC Type CR Style 0805, 1206 Termination F = Wrap Around, P = Planar Resistance Value (EIA 4-digit code) (100 - First 3 significant digits plus 4th digit multiplier) Example: 100 = 1000; 1000 = 1001, 150,000 = 1503 (>100 - "R" is used to designate decimal) Example: 51 = 51R0; 1 = 1R00; 0.25 = R250 Tolerance F = 1.0%; G = 2.0%; J = 5.0% *Packaging T = Tape Pack (8mm tape) *The preferred methods of packaging are: Gold terminated chips are packed in waffle boxes, chips with wrap-around terminations are supplied tape & reel on .8mm tape. Wire and Film Technologies Division s 3OUTH 3TAPLES 3TREET s #ORPUS #HRISTI 4EXAS 53! 4ELEPHONE s &ACSIMILE s 7EBSITE WWWIRCTTCOM #2 3ERIES )SSUE -ARCH 3HEET OF 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. www.bitechnologies.com www.irctt.com www.welwyn-tt.com (c) TT electronics plc 10. 11