Resistors Open Air Resistor Metal OAR Element Current Sense Open AirSeries Resistor OAR & OAR-TP Metal Element Power ratings of 1, 3, & Current 5W @ 85C Sense * * * Superior surge performance TCR's to 20ppm/C Hot spot isolated from PCB material Power ratings of 1,TCR 3, & 20ppm/C 5W @ 85C Resistance wire Resistance range from 2.5m to 100m Tolerances to 1% * Open air design maximizes thermal performance * Welded copper leads minimize effects from solder wicking and provide All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2) true 1% performance Electrical Data Part Number Power Rating @ 85C (watts) OAR-1 (TP) 1.0 OAR-3 (TP) 3.0 OAR-5 (TP) 5.0 Resistance Range (m) Tolerance (%) Wire TCR (ppm/C) Inductance (nH) 3, 5, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80, 100 2, 2.5, 3, 4, 5, 6, 7, 10, 15, 20, 25, 30, 40, 45, 50, 60, 70, 100 3, 4, 5, 6, 6.2, 10, 12, 15, 20, 25, 30, 40, 50 1, 2, 5 20 <10 Notes: 2% tolerance available <5m Please contact factory for resistance values not listed Environmental Data Load Life (1000 hours @ 25C) R/R <1% Moisture (no load for 1000 hours) R/R <1% Temperature Cycling (-40C to +125C for 1000 cycles) R/R <1% Operating Temperature -40C to +125C General Note General Note TT thechanges right toin make in without product specification IRCElectronics reserves the reserves right to make productchanges specification notice or liability. without notice or liability. All information is subject to IRC's data and is considered accurate at considered time of going to print. All information is subject to own TT Electronics' own data and is accurate at time of going to print. Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA (c) TT Electronics Telephone: 361 992 7900 plc * Facsimile: 361 992 3377 * Website: www.irctt.com BI Technologies IRC Welwyn A subsidiary of http://www.ttelectronics.com/resistors TT electronics plc OAR Series Issue June 2011 Sheet 1 of 3 11.16 OAR Open Air Resistor Open Air Resistor Metal Element Current Sense Metal Element OAR & OAR-TP Series Current Sense OAR Open Air Resistor Physical Data Physical Data Metal Element Current Sense On lower ranges stand-off may be eliminated NOTE: Contact factory for: 1. Variations of "A" dimension. 2. Different lead diameter. B Physical Data C E On lower ranges stand-off may be eliminated F Test Point (Kelvin connection) A B Type A IROAR1 C Type 0.45 +0.04/-0.02 A (11.43 +1.02/-0.51) IRC Type OAR3TP OAR-5 <R005 OAR-1 OAR3TP R005 OAR-3 B0.32 (8.12) 0.450 +0.040/-0.020 0.27 Typ 0.197 +0.04/-0.03 (11.43 (5.0 +1.020/-0.508) +1.0/-0.8) OAR-1 OAR1TP OAR3 OAR-3 B max Dimensions (Inches andC(mm)) 0.3max (7.8) 0.32 (8.12) OAR5TP C E E F 0.125 0.030 F 0.065 +0.010/-0.005 0.040 0.002 (3.18 0.762) (1.65 +0.254/-0.127) (1.02 0.051) A Test Point (Kelvin connection) 0.6000.60 +0.040/-0.020 0.65 Typ 0.125 0.030 0.065 +0.010/-0.005 +0.04/-0.02 Dimensions 0.92 (23.4) (Inches and (mm)) (15.24 +1.02/-0.51) 0.92 (23.4) max (15.24 +1.020/0.508) (3.18 0.762) (1.65 +0.254/-0.127) 0.065 +0.01/-0.005 A B C 0.125 0.03 E +0.04/-0.03 0.8000.275 +0.040/-0.020 0.65 Typ 0.125 0.030 (3.18 0.76) 0.065 +0.010/-0.005 (1.65 +0.25/-0.13) 0.450 +0.040/-0.020 0.27 Typ 0.125 0.030 0.065 +0.010/-0.005 (7.0 +1.0/-0.8) (20.32 +1.020/-0.508) 0.88 (22.4) (1.65 +0.254/-0.127) 1.0 max (25.4) (3.18 0.762) (11.43 +1.020/-0.508) 0.32 (8.12) max (3.18 0.762) (1.65 +0.254/-0.127) 0.197 +0.04/-0.03 (5.0 +1.0/-0.8) 0.600 +0.040/-0.020 Thermal Image Data OAR5 OAR-5 E C NOTE: Contact factory for: F 1. Variations of "A" dimension. 2. Different lead diameter. 0.65 Typ 0.125 0.030 0.80 +0.04/-0.02 0.92 (23.4) max (15.24 +1.020/0.508) 0.88 (22.4) (3.18 0.762) (20.32 +1.02/-0.51) 0.800 +0.040/-0.020 0.275 +0.04/-0.03 (20.32 +1.020/-0.508) (7.0 +1.0/-0.8) 0.65 Typ 0.040 0.002 (1.02 0.051) F0.04 0.002 0.040 0.002 (1.02 0.05) 0.040 0.002 (1.02 0.051) (1.02 0.051) 0.065 +0.010/-0.005 0.040 0.002 (1.65 +0.254/-0.127) (1.02 0.051) 0.125 0.030 0.065 +0.010/-0.005 0.040 0.002 (27.9) (3.18 0.762) 0.88 (22.4)1.1 max (1.65 +0.254/-0.127) (1.02 0.051) Thermal Image Data OAR-1 5 m @ 1 Watt OAR-3 5 m @ 3 Watt OAR-5 5 m @ 5 Watt Hot Spot: 87C Solder Joint: 45C Hot Spot: 160C Solder Joint: 70C Hot Spot: 230C Solder Joint: 96C The thermal images (not simulations) above are of the OAR products at their respective power rating. Notice the solder joint temperature is much lower than the hotspot. The unique construction of the OAR isolates the temperaOAR-1 5 m @ 1from Wattthe circuit board material OAR-3 5preventing m @ 3 Watt m @ 5 Watt ture of the hotspot damage to the circuitOAR-5 board. 5Additionally, the thermal energy is dissipated to the air instead of being conducted into the circuit board potentially causing a nearby power Hot Spot: 87C Hot Spot: 160C Hot Spot: 230C component to exceed its rating. Solder Joint: 45C Solder Joint: 70C Solder Joint: 96C The thermal images (not simulations) above of layer the OAR their respective power rating. The standard test circuit board consists of aare four FR4products material at with 2 ounce (70m) outer layersNotice and 1 the ounce solder joint temperature is much lower of than theindustry hotspot.designs. The unique of the OAR isolates temperature the tempera(35m) inner layers, which is typical many Theconstruction test conditions were in ambient ture of the hotspot from the circuit board preventing to the circuit board. Additionally, the thermal conditions, approximately 22 C with nomaterial forced air. Contactdamage TT electronics for more details or for other thermal image energy is dissipated to resistance the air instead of being conducted test data for specific values and power levels.into the circuit board potentially causing a nearby power component to exceed its rating. 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 OAR Series Issue June 2011 Sheet 2 of 3 The standard test circuit board consists of a four layer FR4 material with 2 ounce (70m) outer layers and 1 ounce (35m) inner layers, which is typical of many industry designs. The test conditions were in ambient temperature conditions, approximately 22 C with no forced air. Contact TT electronics for more details or for other thermal image test data for specific resistance values and power levels. Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com General361Note 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. OAR Series Issue June 2011 Sheet 2 of 3 BI Technologies IRC Welwyn http://www.ttelectronics.com/resistors (c) TT Electronics plc 11.16 OAR Open Air Resistor Open Air Resistor Metal Element Current Sense Metal Element Current Sense OAR & OAR-TP Series Power Derating The typical power derating curves are based on conservative design concepts that extend from film based products. The OAR is a solid metal alloy construction that can withstand comparably greater operating power levels than conservative design models permit. Typically the resistive alloys can withstand temperatures in excess of 300C. Therefore, system thermal design considerations are a more significant design parameter due to the heat limitations of solder joints and/or circuit board substrate materials. 1400 1400 600 1200 1200 500 400 300 200 100 Surge Current (Amps) 700 Surge Current (Amps) Surge Current (Amps) Pulse/Surge Chart @ 50 msec duration 1000 800 600 400 200 0 10 20 30 40 50 60 70 80 90 100 800 600 400 200 0 0 1000 0 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 Resistance (milli-ohms) Resistance (milli-ohms) Resistance (milli-ohms) OAR-1(TP) OAR-3(TP) OAR-5(TP) 40 45 50 The Surge current charts are approximations of the capabilities of the OAR product and should not be used to the exclusion of actual testing. The relative high surge currents depicted in the charts are as a result of the robust all metal welded construction and the heat carrying capability of metal. Additionally the OAR resistive wire provides large relative cross section for current flow as compared to other resistor technologies, such as thin film, thick film, or metal strip. Ordering Data Sample Part No. OAR 1 R100 F LF IRC Style OAR Power Rating in Watts 1 = 1W, 3 = 3W, 5 = 5W Resistance Range `R' indicates decimal point location Tolerance F = 1%, G = 2%, J = 5% RoHS Indicator LF indicates RoHS compliance Blank indicates Sn/Pb terminal tinning; available on special request 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 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. OAR Series Issue June 2011 Sheet 3 of 3 BI Technologies IRC Welwyn http://www.ttelectronics.com/resistors (c) TT Electronics plc 11.16 OAR-1(TP) OAR-3(TP) OAR-5(TP) The Surge current charts are approximations of the capabilities of the OAR product and should not be used to the exclusion of actual testing. The relative high surge currents depicted in the charts are as a Open result ofAir theResistor robust all metal welded construction and the heat carrying capability of metal. Additionally the OAR resistive provides large relative cross section for current flow as compared to other resistor Metal Element wire Current Sense technologies, such as thin film, thick film, or metal strip. OAR & OAR-TP Series Ordering Data Ordering Procedure Sample Part No. OAR 1 R100 F LF This product has two valid part numbers: IRC Style OAR European (Welwyn) Part Number: OAR3-R01JI (OAR3, 10 milliohms 5%, Pb-free) Power Rating in Watts 1 = 1W, 3 = 3W, 5 = 5W O Resistance Range A R `R' indicates decimal point location 3 - 1 Tolerance R 0 2 1 3 J I 4 5 F = 1%, G = 2%, J = 5% RoHS Indicator LF indicates RoHS 1 compliance Blank indicates Sn/Pb terminal tinning; availableType on special request 2 3 4 5 Pitch Value Tolerance Packing F = 1% G = 2% J = 5% I = Bulk OAR1 Omit for standard 3-5 characters OAR3 TP = Tight Pitch See Electrical Data OAR5 R = ohms Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA OAR Series Issue June 2011 Sheet 3 of 3 Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com USA (IRC) Part Number: OAR3R010JLF (OAR3, 10 milliohms 5%, Pb-free) O A R 3 R 1 2 0 1 0 3 J 4 L F 5 1 2 3 4 Type Pitch Value Tolerance Termination F = 1% G = 2% J = 5% Omit for SnPb LF = Pb-free OAR1 Omit for standard 4/5 characters OAR3 TP = Tight Pitch See Electrical Data OAR5 R = ohms 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. 5 BI Technologies IRC Welwyn http://www.ttelectronics.com/resistors (c) TT Electronics plc 11.16 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TT Electronics: OAR1R100J OAR1R080JLF OAR5R005JLF OAR1R005JLF OAR3R005JLF OAR3R040JLF OAR1R040JLF OAR5R040JLF OAR3R100JLF OAR5R020J OAR5R030JLF OAR3R030JLF OAR1R030JLF OAR3R040J OAR5R020JLF OAR1R020JLF OAR3R020JLF OAR3R030J OAR5R005J OAR1R005FLF OAR1R050FLF OAR1R100F OAR3R005F OAR3R005FLF OAR3R040F OAR3R050F OAR3R050FLF OAR5R0062F OAR5R040F OAR3R015J OAR3R050J OAR3R070JLF OAR1R070JLF OAR1R100JLF OAR3R080J OAR5R010JLF OAR3R010JLF OAR1R010JLF OAR5R010J OAR5R015J OAR3R050JLF OAR5R050JLF OAR1R050JLF OAR1R050J OAR5R015JLF OAR3R100J OAR1R030J OAR1R010J OAR1R080J OAR1R005J OAR3R020J OAR3R070J OAR1R020J OAR1R015JLF OAR3R015JLF OAR1R015J OAR1R070J OAR5R040J OAR3R005J OAR3R010J OAR1R040J OAR3R080JLF OAR5R030J OAR1R080FLF OAR3TPR040GLF OAR3TPR040FLF OAR5R040FLF OAR1TPR005FLF OAR1TPR005JLF OAR3TPR010JLF OAR5TPR005JLF OAR5R005FLF OAR5R005F115 OAR3R020FLF OAR3R010FLF OAR1R006JLF OAR1R010FLFTR OAR3R025FLF OAR1R080F OAR3R0068J OAR5R010F OAR3R045JLF OAR5R010F116 OAR5R010FLF063 OAR1R010FLF OAR3R100FLF OAR1R015FLF OAR5R050FLF OAR5R003JLF OAR1R100FLF OAR3R025JLF OAR5R020FLF OAR5R015FLF OAR1R020FLF OAR1R025JLF OAR3TPR005FLF OAR3TPR080JLF OAR3TPR040JLF OAR3TPR025JLF OAR3TPR10JLF