Surface Mount Resistor Wrap-around terminations for soldering CR Series * 0 ohm available Organic Protection * Shorting links available Tin/lead Solder * 1.0 ohms to 100M ohms * Tolerance down to 0.25% * Solder terminations have a nickel barrier layer Thick Film Conductor * Any resistance value available within specified range Nickel Electrical Data IRC Type Power Rating at 70C (watts) 5% Tol. 2% Tol. 1% Tol. 0.5% Tol. CR0503 0.063 1-10M 1-10M 10-10M 100-1M Resistance Range (ohms) 0.25% Tol. Limiting Element Voltage (volts) TCR -55C to +125C (ppm/C) N/A 50 <10 350; CR0805 0.1 1-100M 1-50M 1-20M 1-10M 100-1M 100 CR1005 0.125 1-100M 1-50M 1-20M 1-10M 100-1M 150 CR1206 0.25 1-100M 1-50M 1-20M 1-10M 100-1M 200 * For 10 devices mounted on 50x25mm p.c.b. area 10 to 100 200; 100 to 1M 100: Values Thermal Impedance** (C/watt) Operating Temp. Range (C) 800 E24 & E96 preferred 360 (any value to 290 -55 to 125 order) 200 >1M 250 ** Zerohm is available Thickness: The thickness of these devices depend on the size of the chip. The table below shows the standard substrate thickness used (mm). Contruction: Thick film resistor material, overglaze and organic protection are screen printed on a 96% alumina substrate. Terminations: Wrap-around terminations on CR resistors have good `leach' resistance properties. They will withstand immersion in solder at 260C for 30 seconds. Marking: All relevant information is recorded on the primary package or reel. STYLE 0503 0805 Planar 0.63 0.4 Wrap-around N/A 0.4 F = Wrap-around; G = Planar Gold. 1005 0.63 N/A 1206 0.5 0.5 Electrical Data Requirements Load at rated power: 1000 hours at 70C R% Shelf life: 12 months at room temperature R% Derating from rated power at 70C 2 (5 above 3M3) Actual Maximum Typical 1 0.25 0.1 zero at 125C Long term damp heat R% 2 1 Temperature rapid change R% 1 0.25 Resistance to solder heat R% 2.5 0.25 Voltage proof volts 0.25 500 General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC's own data and is considered accurate at time of going to print. Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com A subsidiary of TT electronics plc CR Series Issue September 2008 Sheet 1 of 3 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 0503 .049 .008 (1.25 0.2) .025 .006 (0.63 0.15) .027 (.07) 0805 .079 .012 (2.0 0.3) .049 .008 (1.25 0.2) .027 (.07) 1005 .098 .012 (2.5 0.3) .049 .008 (1.25 0.2) .027 (.07) 1206 .126 .016 (3.2 0.4) .063 .008 (1.6 0.2) .027 (.07) Planar Wrap-around A B* not available .012 .006 (0.3 0.15) .035 (0.9min) not available .016 .008 (0.4 0.2) .067 (1.7min) C Weight (g) .008 .004 (0.2 0.1) 0.005 .012 .004 (0.3 0.1) 0.009 .016 .006 (0.4 0.15) 0.015 .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 * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com CR Series Issue September 2008 Sheet 2 of 3 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 P IRC Type CR Style 0503, 0805, 1005, 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 C = 0.25%; D = 0.5%; F = 1.0%; G = 2.0%; J = 5.0% *Packaging T = Tape Pack (8mm tape), W = Waffle Pack, P = Plastic Bag *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. Note: 0503 and 1005 available in waffle package only. Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com CR Series Issue September 2008 Sheet 3 of 3