Resistors Surface Mount Sense Resistors Surface Mount Sense Resistors OARS, OARS-XP, OARSZ Series Surface Mount Sense Resistors OARS, OARS-XP, OARSZ Series Flexible leads for thermal expansion Open-air design reduces PCB heating Flexible leads for thermal expansion Values down to 1m Open-air design reduces PCB heating Element TCR 20ppm/C Values down to 1milliohm OARS, OARS-XP, OARSZ Series Zero-ohm 65A jumper version Element TCR 20ppm/C RoHS compliant Flexible leads for thermal expansion Zero-ohm 65A jumper version Open-air design reduces PCB heating Values down to 1m Element TCR 20ppm/C Electrical Data Zero-ohm 65A jumper version RoHS compliant AllAll partsparts araree Pb-Pb-frfreeee andand ccomplyomply withwith EUEU DirDirectivectivee 2011/65/EU2011/65/EU amendedamended bbyy (EU)(EU) 2015/8632015/863 (R(RoHS3)oHS3) OARS1/3 OARS-XP watts 2 4 Power rating at 25C Electrical Data Power rating at 85C watts 1 2 Electrical Data Resistance range ohms R002 to R050 R001 to R025 OARS1 OARS3 OARS-XP Resistance Tolerance % R002: 5, > R002: 1, 5 OARS1/3 OARS-XP Power rating Standard Values wwaattstts 2 2 3 4 5 Pat o7w0eCr armatbiinengt,a otr 21450CC milliohms 2, 3, 4, 5, 10, 15, 20, 22, 25, 30, 40, 50 1, 2, 2.5, 5, 7.5, 10, 20, 25 (Enquire foterrmuninalislt etedmvpealruaetusr)e Power rating at 85C watts 1 2 Inductance nH <10 Resistance range ohms R002 to R050 R002 to R015 R001 to R025 Resistance range ohms R002 to R050 R001 to R025 AmbientR teesmisptanercaetu Treoleranrangcee C % R002-55: t5o, +> R160002: 1, 5 Resistance Tolerance % R002: 5, > R002: 1, 5 2, 3, 4, 5, 10, 15, 20, 1, 2, 2.5, 5, 7.5, Standard Values Standard Values milliohms 2, 3, 4, 5, 10, 15 milliohms 2, 3, 4, 5, 10, 15, 20, 22, 25, 30, 40, 50 1, 2, 2.5, 5, 7.5, 10, 20, 25 (Enquire for unlisted values) 22, 25, 30, 40, 50 12.5, 10, 20, 25 (Enquire for unlisted values) OARS-1Z Comments Inductance nH <10 Inductance nH <10 amps 65 Current rating at 25C Ambient temperature range C -55 to +160 Ambient temperature range C -55 to +160 Zero-ohm jumper amps 46 Current rating at 85C Ambient temperature range C -55 to +160 OARS-1Z Comments OARS-1Z Comments Current rating at 25C ambient amps 65 amps 65 Current rating at 25C Physical Data Max residual resistance milliohms 0.3 Zero-ohm jumper amps 46 Zero-ohm jumper Current rating at 85C Ambient temperature range C -55 to +160 Ambient temperature range C -55 to +160 Dimensions (mm) and recommended solder pads Type L H T D W a nom. b nom. c nom. d nom. Physical Data 3.05 OARS1/3 >R003, OARS-1Z Temperature Derating Dimensions (mm) and recommendeds0o.7l6der pads 11.18 4.83 3.18 4.07 0.38 0.76 0.38 Type L H T D W a nom. b nom. c nom. d nom. OARS1/3 - R003 9.37 3.07 3.513.05 2.36 OARS1/3 >R003, OARS-1Z 3.23 0.76 0.25 0.76 11.18 4.83 3.18 11.56 4.7 3.56 4.07 OARS1/3 - R002 4.45 0.38 0.76 0.38 0.76 0.38 0.38 OARS1/3 - R003 9.37 3.07 3.51 2.36 10.7 to 2.28 to 4.83 6.35 3.23 OARS-XP 0.25 7.24 9.58 3.18 0.76 11.56 4.7 3.56 12.0* 4.57* 0.76 0.38 OARS1/3 - R002 4.45 0.38 0.76 0.38 * Dependent on ohmic value 10.7 to 2.28 to 4.83 6.35 OARS-XP 7.24 9.58 3.18 12.0* 4.57* 0.76 0.38 * Dependent on ohmic value OARS1/3/XP b c c OARSZ d b c c d a a Note: For OARS1/3/XP this relates to power rating, for OARSZ it relates to current rating. 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 07.11 TT Electronics plc 07.11 06.18Surface Mount Sense Resistors Surface Mount Sense Resistors OARS, OARS-XP, OARSZ Series OARS, OARS-XP, OARSZ Series ElecPtreicarfl oDramtaance Data (AEC-Q200) OARS1 OARS3 OARS-XP OARS1/3 <R004 R004 to R015 >R015 Power rating watts 2 3 5 at 70C ambient, or 140C OARS-XP <R002 R002 to R007 >R007 terminal temperature Resistance range ohms R002 to R050 R002 to R015 R001 to R025 TCR (-55 to 125C) ppm/C 240 40 40 Resistance Tolerance % R002: 5, > R002: 1, 5 Thermal Shock R% 0.75 0.75 0.75 2, 3, 4, 5, 10, 15, 20, 1, 2, 2.5, 5, 7.5, Standard Values milliohms 2, 3, 4, 5, 10, 15 High Temp. Exposure (125C) R% 1.75 0.5 1 (Enquire for unlisted values) 22, 25, 30, 40, 50 12.5, 10, 20, 25 Inductance nH <10 Temp. Cycling (-40 to 125C) R% 1 1 0.75 Ambient temperature range C -55 to +160 Operational Life R% 2 1 1 Biased Humidity R% 0.75 0.5 0.5 OARS-1Z Comments CurrMenet rcahtinagn ait c2a5lCSamhboienckt amps R% 65 1.5 1 1 Max residual resistance milliohms 0.3 Zero-ohm jumper Vibration R% 1 1 1 Ambient temperature range C -55 to +160 Terminal Strength Meets JIS-C-6429 Solvent Resistance Meets MIL-STD-002 Method 215 Solderability Meets J-STD-002 Method B Temperature Derating Temperature Derating Pulse Energy Rating 120 120 100 100 80 80 60 OARS1/3/XP 40 60 OARSZ 20 40 0 20 1 10 100 Note: For OARS1/3/XP this relates to power rating, for OARSZ it relates to current rating. 0 Value (milliohms) 0 25 50 75 100 125 150 175 OARS1/3 OARS-XP Ambient Temperature (Deg C) Note: For OARS-1Z the above derating graph may be applied to Note: This graph relates to single pulses of short duration ( 100ms). the square of the current rating. Higher energy limits apply for longer pulses and overloads Joint Temperature Rise Hot Spot Temperature Rise 7.6mm x 7.6mm pads, 2 oz copper on FR4, still air 7.6mm x 7.6mm pads, 2 oz copper on FR4, still air 300 100 Value in milliohms Value in milliohms OARS1/3 / OARS-XP OARS1/3 / OARS-XP 250 80 50 / 25 5 / - 200 60 10 / 5 30 / 15 150 10 / 5 30 / 15 40 100 5 / - 50 / 25 20 50 0 0 25% 50% 75% 100% 25% 50% 75% 100% Proportion of Rated Power Proportion of Rated Power Note: Temperature rise data are given here for typical mounting conditions. Actual figures depend on PCB copper weight, mounting pad size, track width and substrate type. Also, the open air format responds better to forced air cooling than chip format resistors. For values below 5 milliohms allowance should be made for heat generated in the copper tracks themselves. Application-specific guidance is available on request. 07.11 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 06.18 % of Rated Power Temperature Rise (K) Temperature Rise (K) Energy (J)