UR73 current sensing chip resistor EU r e s features is t o • Very low resistance, high precision reliability r s • Utilization of thick film • Low T.C.R. achieved (±100 ppm/°C) • Products with lead-free terminations meet EU RoHS requirements. EU RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass. dimensions and construction L Size Resistance Dimensions inches (mm) UR73 a a Code Range (Ω) L W h a b D1E .039 +-..000042 .020 +-..000042 .016±.002 .010±.004.012±.004 W (0402) 24m ~ 100m (1.0 +0.1 ) (0.5 +0.1 ) (0.4±0.05) (0.25±0.1) (0.3±0.1) -0.05 -0.05 D1J 10m ~ 27m .063±.008 .031 +-..000054 .02±.004 .014±.004 .(002.525±±.00.014) h Ni (0603) 30m ~ 100m (1.6±0.2) (0.8 +0.15) (0.5±0.1) (0.35±0.1) .014±.004 Plating -0.1 (0.35±0.1) .024±.008 b Protective Resistive Inner D2A 10m ~ 16m .079±.008 .049±.008 .022±.004 .016±.008 (0.6±0.2) Coating Film Electrode (0805) 18m ~ 30m (2.0±0.2) (1.25±0.2) (0.55±0.1) (0.4±0.2) .02±.008 Ceramic (0.5±0.2) Substrate 2A .079±.008 .049±.008 .02±.004 .016±.008 .012 +-..000084 L (0805) 33m ~ 100m (2.0±0.2) (1.25±0.2) (0.55±0.1) (0.4±0.2) (0.3 +0.2) UR73D a a -0.1 .039±.008 D2B 10m ~ 16m .126±.008 .063±.008 .024±.004 .020±.008 (1.0±0.2) W (1206) 18m ~ 27m (3.2±0.2) (1.6±0.2) (0.6±0.1) (0.5±0.2) .031±.008 (0.8±0.2) h Ni SPolaldtinegr (122B06) 30m ~ 100m .1(32.62±±.00.20)8 .0(16.36±±.00.20)8 .0(02.46±±.00.10)4 .0(02.05±±.00.31)2 .0(01.46 ++--00..00..1200)84 Plating .063±.012 b Resistive Inner D2H 10m ~ 30m .197±.008 .098±.008 .026±.004 .026±.012 (1.6±0.3) Film Electrode (2010) 33m ~ 100m (5.0±0.2) (2.5±0.2) (0.65±0.1) (0.65±0.3) .026±.012 Ceramic Protective (0.65±0.3) Substrate Coating .079±.012 D3A 10m ~ 30m .248±.008 .122±.008 .024±.004 .031±.012 (2.0±0.3) (2512) 33m ~ 100m (6.3±0.2) (3.1±0.2) (0.6±0.1) (0.8±0.3) .031±.012 (0.8±0.3) ordering information UR73 2A T TD R100 F Power Termination Nominal Type Packaging Tolerance Rating Material Resistance UR73 1E: 0.125W T: Sn TP: 2mm pitch “R” indicates decimal on F: ±1% UR73D 1J: 0.25W punch paper values = 100Ω (1E) Ex: R100 = 100Ω 2A: 0.33W TD: 7" punched “L” indicates decimal on 2B: 0.5W paper tape values <100mΩ 2H: 0.75W (1J, 2A, 2B) Ex: 10L0 = 10mΩ 3A: 1W TE: 7" embossed plastic (2H, 3A) For further information on packaging, please refer to Appendix A. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/08/17 76 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

UR73 current sensing chip resistor applications and ratings s r o t Rated Rated Terminal T.C.R. Resistance Range Operating s Part Power Ambient Part Temp. (ppm/°C) Temperature si Designation Rating F (±1%) E-24, e Temperature Max. 25mΩ, 50mΩ Range r ±100 30mΩ- 100mΩ UR73D1E* 1/8W (.125W) 70°C — ±500 24mΩ- 27mΩ ±100 47mΩ- 100mΩ UR73D1J 1/4W (.25W) 70°C 80°C ±200 30mΩ- 43mΩ ±300 10mΩ- 27mΩ UR73D2A 1/3W (.33W) 70°C 85°C ±250 10mΩ- 30mΩ ±100 47mΩ- 100mΩ UR732A 1/3W (.33W) 70°C 90°C -55°C ±250 33mΩ- 43mΩ to UR73D2B 1/2W (.5W) 70°C 85°C ±200 10mΩ- 27mΩ +125°C ±100 47mΩ- 100mΩ UR732B 1/2W (.5W) 70°C 85°C ±200 30mΩ- 43mΩ ±250 10mΩ- 30mΩ UR73D2H 3/4W (.75W) 70°C 90°C ±100 33mΩ- 100mΩ ±250 10mΩ- 30mΩ UR73D3A 1W (1W) 70°C 95°C ±100 33mΩ- 100mΩ * Please contact factory prior to use Rated voltage = √P•R If any questions should arise whether to use the “Rated Ambient Temperature” or the “Rated Terminal Part Temperature,” please give priority to the “Rated Terminal Part Temperature.” Prior to use and for more details refer to “Introduction of the derating curves on the terminal part temperature” in the beginning of the catalog. environmental applications Derating Curve Surface Temperature Rise UR73D 1J, 2A, 2B, 2H, 3A 10mΩ 100 100 D1J/0.25W (80°C) UR73 2A, 2B 33mΩ UR73D 1E 24mΩ % Rated Power4286-0000060-55-40 -20 0Am2b0ient (4T°e0Cm)pe6r0a7tu0r8e0 100120125140 % Rated Power4286-0000060-55-40 -2D2D20AB32//AB00//..10350W.T3W5WeW ,( r9,D m (5D282°i2A5C0nH°/)0aC/.0l)3 .P437W05a(Wr,°t C (T9)6e00m°Cp)88e05ra9t0u9r15e00121025140 Temperature Rise° (C)152700550 2222BAAB ((((2211)))) Temperature Rise° (C)152700550 212211233221BJAAEEBAAHHJ ((((((((((((122211212112)))))))))))) For resistors operated at an ambient For resistors operated at a terminal part temperature of 70°C or above, a power temperature of described for each size 0 0 0 25 50 75 100 0 25 50 75 100 rating shall be derated in accordance or above, a power rating shall be derated with the above derating curve. in accordance with the derating curve. % Rated Power % Power Rating Please refer to “Introduction of the 1 1 derating curve based on the terminal 2 2 part temperature” in the beginning of Regarding the temperature rise, the value of the temperature varies per our catalog prior use. conditions and board for use since the temperature is measured under Performance Characteristics our measuring conditions. Requirement ∆ R ±(%+0.005Ω) Parameter Limit Typical Test Method Within specified Resistance — 25°C tolerance Within specified T.C.R. — +25°C/+55°C and +25°C/+125°C T.C.R. Overload (Short time) ±2% ±0.5% Rated voltage x 2.5 for 5 seconds Resistance to Solder Heat ±1% ±0.3% 260°C ± 5°C, 10 ± 1 second Rapid Change of Temperature ±1% ±0.5% -55°C (30 minutes), +125°C (30 minutes), 100 cycles Moisture Resistance ±2% ±1% 40°C ± 2°C, 90%~95%RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Endurance at 70°C ±2% ±1% 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle High Temperature Exposure ±1% ±0.3% +125°C, 1000 hours Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/08/17 77 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: K OA Speer: UR732ATTDR10F UR732BTTDR10F UR732ATTD51L0F UR732ATTD68L0F UR73D3ATTE68L0F UR73D1JTTD50L0F UR73D1JTTD75L0F UR73D3ATTE12L0F UR73D3ATTE15L0F UR73D3ATTE16L0F UR73D3ATTE47L0F UR732BTTD47L0F UR732ATTD33L0F UR732ATTDR100F UR732BTTD30L0F UR732BTTD50L0F UR73D1JTTD10L0F UR73D1JTTD15L0F UR73D1JTTD20L0F UR73D1JTTD33L0F UR73D1JTTD47L0F UR73D1JTTD91L0F UR73D1JTTDR100F UR73D2ATTD10L0F UR73D2ATTD15L0F UR73D2ATTD20L0F UR73D2BTTD10L0F UR73D2BTTD15L0F UR73D2BTTD20L0F UR73D3ATTE50L0F UR73D1ETTP24L0F UR732ATTD30L0F UR732ATTD36L0F UR732ATTD39L0F UR732ATTD43L0F UR732ATTD56L0F UR732ATTD75L0F UR732ATTD82L0F UR732ATTD91L0F UR732BTTD33L0F UR732BTTD36L0F UR732BTTD39L0F UR732BTTD43L0F UR732BTTD56L0F UR732BTTD62L0F UR732BTTD68L0F UR732BTTD75L0F UR732BTTD82L0F UR732BTTD91L0F UR73D1JTTD11L0F UR73D1JTTD12L0F UR73D1JTTD16L0F UR73D1JTTD18L0F UR73D1JTTD22L0F UR73D1JTTD24L0F UR73D1JTTD27L0F UR73D1JTTD30L0F UR73D1JTTD36L0F UR73D1JTTD39L0F UR73D1JTTD43L0F UR73D1JTTD51L0F UR73D1JTTD56L0F UR73D1JTTD62L0F UR73D1JTTD68L0F UR73D1JTTD82L0F UR73D2ATTD11L0F UR73D2ATTD12L0F UR73D2ATTD13L0F UR73D2ATTD16L0F UR73D2ATTD18L0F UR73D2ATTD22L0F UR73D2ATTD24L0F UR73D2ATTD27L0F UR73D2ATTD30L0F UR73D2BTTD11L0F UR73D2BTTD12L0F UR73D2BTTD13L0F UR73D2BTTD16L0F UR73D2BTTD18L0F UR73D2BTTD22L0F UR73D2BTTD24L0F UR73D2BTTD27L0F UR73D1ETTP27L0F UR73D1ETTP30L0F UR73D1ETTP33L0F UR73D1ETTP36L0F UR73D1ETTP39L0F UR73D1ETTP43L0F UR73D1ETTP47L0F UR73D1ETTP50L0F UR73D1ETTP51L0F UR73D1ETTP56L0F UR73D1ETTP62L0F UR73D1ETTP68L0F UR73D1ETTP75L0F UR73D1ETTP82L0F UR73D1ETTP91L0F UR73D1ETTPR100F UR73D1JTTD25L0F UR73D2ATTD25L0F