SURFACE MOUNT RESISTORS RoHS LR Series: Metal Alloy, Very Low Resistance APPLICATION FEATURES • T ELECTRICAL CHARACTERISTICS & DIMENSION L W • R010 H • • • Power supply • Battery pack • DIY tools • Inverter/Converter (AC/DC, DC/DC, DC/AC) • Test and Measurement • Consumer electronics • Note book , PC power pack • LED driver High-temperature performance (up to +275°C). Very low inductance 0.5nH to 5nH. Excellent frequency response. Stable high frequency characteristic with reduced lead inductance and excellent frequency response. Low thermal EMF (<1μV/°C). Pure tin plating provides compatibility with lead (Pb) free and lead containing soldering processes. Excellent stability (|ΔR/R| = + 0.5% for 1000hr at 100°C) different environmental conditions. AEC - Q200 Qualified Size Code Power Rating @ 100°C (Watts) LR1WMR (1206) 1W LR1WSR (2010) 1W LR1WR (2512) 1W LR1.5WR (2512) 1.5W LR2WR (2512) 2W LR3WSR (2512) 3W LR3WR (2728) 3W LR3.5WR (2728) 3.5W Resistance Range and Temp. Coeff. Operating Temperature Range (°c) 1mΩ ~ 4mΩ : +50 4.1mΩ ~ 15mΩ : -25 15.1mΩ~50mΩ : -15 0.5mΩ ~ 3mΩ : +50 3.1mΩ ~ 6.9mΩ : -25 7mΩ ~ 100mΩ : -15 0.5mΩ ~ 3mΩ : +50 3.1mΩ ~ 6.9mΩ : -25 7mΩ ~ 75mΩ : -15 0.5mΩ ~ 2.0mΩ : +50 2.1mΩ ~ 10mΩ : -25 4mΩ ~ 7mΩ : -25 7.1mΩ~100mΩ : -15 Resistance Range (mΩ) Max. Rating Current Max. Overload Current 0.5% (D) 1% (F) 5% (J) 31.62A 63.25A 7 ~ 50 1 ~ 50 1 ~ 50 44.72A 89.44A 0.5mΩ ~ 3mΩ: 111 5.10*2.54*0.80; 1.30 3 ~ 100 0.5 ~ 100 0.5 ~ 100 4mΩ ~ 100mΩ: 111 5.10*2.54*0.80; 0.80 44.72A 100.00A 54.77A 122.48A 63.25A -65°C ~ +275°C • • • • 126.49A 77.46A 134.16A 27.39A 47.43A 29.58A 51.23A 0.5 ~ 75 0.5mΩ ~ 4mΩ: 111 6.25*3.30*0.80; 1.88 0.5 ~ 75 4mΩ ~ 75mΩ: 111 6.25*3.30*0.80; 1.13 7 ~ 10 0.5 ~ 10 0.5mΩ: 111 6.25*3.30*0.80; 1.88 0.6mΩ ~ 2.9mΩ: 111 6.25*3.30*0.80; 1.13 0.5 ~ 10 3mΩ ~ 4mΩ: 111 6.25*3.30*0.80 ; 1.68 4.1mΩ ~ 10mΩ: 111 6.25*3.30*0.80 ; 1.13 4 ~ 100 4 ~ 100 4 ~ 100 6.70*7.20*1.00 ; 1.15 0.25mΩ ~ 1.5mΩ: 111 6.80*6.00*1.05 ; 2.15 2.0mΩ: 111 6.80*6.00*0.90 ; 1.80 0.25 ~ 3 2.5mΩ: 111 6.80*6.00*0.90 ; 1.65 3.0mΩ: 111 6.80*6.00*0.90 ; 1.30 7 ~ 75 4W 0.25mΩ~0.9mΩ : +50 1mΩ ~ 3mΩ : -25 126.95A 252.95A ---- 0.25 ~ 3 LR4WR (2728) 4W 4mΩ ~ 7mΩ : -25 7.1mΩ ~ 50mΩ : -15 31.62A 63.25A 4 ~ 50 4 ~ 50 5W < + 50 -55°C ~ +170°C 100.00A 200.00A 3.15 * 1.60 * 0.75; 0.50 0.5mΩ ~ 4mΩ: 111 6.25*3.30*0.80; 1.88 7 ~ 100 0.5 ~ 100 0.5 ~ 100 4mΩ ~ 100mΩ: 111 6.25*3.30*0.80; 1.13 LR4WSR (2725) LR5WR (4527) Dimensions L*W*H;T (mm) + 0.254 ---- 4 ~ 50 6.70*7.20*1.00 ; 1.15 0.5mΩ ~ 3mΩ: 111 11.6*6.75*1.50 ; 3.30 0.5 ~ 100 0.5 ~ 100 4mΩ ~ 100mΩ: 111 11.6*6.75*1.50 ; 1.90 Page 1 of 4 RFE International • Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail [email protected] C2BB05 2012.08.9 RoHS POWER DERATING CURVE DERATING CURVE SIZE 1206 ~ 2728 SIZE 4527 100 100 POWER LOAD (%) POEWR LOAD (%) 120 P o 80 w e r R 60 a tio (% 40 ) 80 60 40 20 20 0 -65 -50 -25 0 0 25 50 75 100 125 150 175 200 225 250 275 300 20 40 60 80 100 120 140 160 170 AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) Ambient Temperature(¢ J ) RECOMMEND SOLDERING CONDITIONS: Surface-mount components are tested for solderability at a temperature of 245 °C for 3 seconds. Typical examples of soldering processes that provide reliable joints without any damage are given in below: 260 °C 245 °C 300 235 °C to 260 °C 250 180 °C 200 130 °C Typically 40 sec 150 100 50 60 120 180 5k/s 200k/s 2k/s 100 °C to 130 °C 2k/s Profile for Sn/Pb 63/37 Profile for Lead free application 0 second wave first wave Temperature (℃) Temperature (℃) 215 °C forced cooling 240 Time (Sec.) Time (Sec.) Recommended IR Reflow Soldering Profile Recommended double-wave Soldering Profile Typical values (solid line) Process limits (dotted line) Remark: 1.0 Watts with total solder pad trace size of 100mm 2 1.5 Watts with total solder pad trace size of 200mm 2 2.0 Watts with total solder pad trace size of 300mm 2 3.0 Watts with total solder pad trace size of 300mm 2 3.5 Watts with total solder pad trace size of 300mm 2 4.0 Watts with total solder pad trace size of 300mm 2 5.0 Watts with total solder pad trace size of 625mm 2 Page 2 of 4 RFE International • Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail [email protected] C2BB05 2012.08.9 RoHS TEST PROCEDURES Test Item Test Method Procedure R2 - R1 R1 (T2 - T1) Requirements TCR (ppm / °C) = --------------------- X 10 6 1 Temperature Coefficient of Resistance (TCR) JIS C 5201 clause 4.8 R1: resistance of room temperature (T1) R2: resistance of 150 °C (T2) Refer to Ratings 3 times rated power for LR2512-3W, LR2728-3W, LR2728-3.5W Short Time Overload JIS C 5201 clause 4.13 4 times rated power for LR1206-1W, LR2010-1W, LR2512-2W, 11LR2725-4W, LR2728-4W, LR4527-5W ±(0.5%+0.0005Ω) ΔR 5 times rated power for LR2512-1W, LR2512-1.5W 11Rating power duration: 5secs Insulation Resistance JIS C 5201 clause 4.6 100 ± 15V DC for 1 minute Dielectric Withstanding Voltage JIS C 5201 clause 4.7 Applied 500V AC for 1 minute, and Limit surge current 50 mA (max.) Without break down Resistance to Solder Heat JIS C 5201 clause 4.18 Solder temp./immersion time: 260 ± 5°C, 10 ± 1secs and 350 ± 10°C, 3.5 ± 0.5secs ±(0.5%+0.0005Ω) ΔR Solderability Test JIS C 5201 clause 4.17 Specimen prep.: 4 hours ± 15 min. Steam Aging; Solder Bath/Dip and Look Test, 245 ± 5°C, 3 ± 1 secs Vibration JIS C 5201 clause 4.22 Frequency varied 55Hz in one minute, 3 orientations @ Total duration 12 hours ±(0.5%+0.0005Ω) ΔR Resistance to Solvent JIS C 5201 clause 4.29, 4.30 Immersion time: 60 ± 5 secs @ 20°C ~ 25°C ±(0.5%+0.0005Ω) ΔR Mechanical Shock JIS C 5201 clause 4.21 100 grams for 6 milliseconds, 5 pulses ±(0.5%+0.0005Ω) ΔR Low Temperature Exposure (Storage) JIS C 5201 clause 4.23.4 1,000 hours @ -55°C ±(0.5%+0.0005Ω) ΔR High Temperature Exposure (Storage) JIS C 5201 clause 4.23.2 1,000 hours @ + 155°C ±(1.0%+0.0005Ω) ΔR Temperature Cycling (Rapid Temperature Change) JIS C 5201 clause 4.19 Air to air, -55°C to +150°C, 1,000 cycles, 15 minutes at each extreme, transition time 2 to 3 minutes ±(0.5%+0.0005Ω) ΔR Moisture Resistance (Climatic Sequence) JIS C 5201 clause 4.23 Mil-STD-202, Method 106, 0% power, 7a and 7b not required, t = 24 h/cycle, 10 cycles, Unpowered, ±(0.5%+0.0005Ω) ΔR Bias Humidity JIS C 5201 clause 4.24 +85 °C, 85% RH, 10% Bias, Extended Life Test: 1,000 hours, 1.5 hours On, 0.5 hours Off ±(0.5%+0.0005Ω) ΔR JIS C 5201 clause 4.25.1 Test temperature 100 °C Rated continuous working voltage, Extended Life Test: 1,000 hours, 1.5 hours On, 0.5 hours Off ±(1.0%+0.0005Ω) ΔR Load Life > 109 Ω 95% coverage Page 3 of 4 RFE International • Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail [email protected] C2BB05 2012.08.9 SURFACE MOUNT RESISTORS RoHS LR Series: Metal Alloy, Very Low-Resistance PACKING DIMENSION (mm) Reel Reel Type Type // Tape 7” reel for 12 mm embossed 7” reel for 8 mm embossed (for LR1206 only) 7” reel for 24 mm embossed AA £ ØrB B £ rC ØC £ D rD W W £ØM rM 2.5 ± 0.5 13.5 ± 0.5 17.7 ± 0.5 60.0 ± 0.5 16.2 ± 0.5 178 ± 1.0 2.0 ± 0.5 13.2 ± 0.5 17.7 ± 0.5 60.0 ± 0.5 12.00± 0.5 178 ± 1.0 2.0 ± 0.5 13.5 ± 0.5 17.7 ± 0.5 60.0 ± 0.5 178 ± 1.0 24.4 +2.0 Embossed Size A Bo W E F G H T ØD ØD1 T1 P 1206 1.83 + 0.10 3.5 + 0.10 8 + 0.15 1.75 + 0.10 3.5 + 5 0.10 4.0 + 0.10 2.0 + 0.10 0.20 + 0.05 1.55 + 0.05 1.00 + 0.10 0.90 + 0.10 4 + 0.1 2010 2.9 + 0.10 5.45 + 0.10 12 + 0.15 1.75 + 0.10 5.5 + 0.10 4.0 + 0.10 2.0 + 0.10 0.23 + 0.05 1.55 + 0.05 1.50 + 0.10 1.10 + 0.10 4 + 0.1 2512 3.90 + 0.10 6.74 + 0.10 12 + 0.15 1.75 + 0.10 5.5 + 0.10 4.0 + 0.10 2.0 + 0.10 0.24 + 0.05 1.55 + 0.05 1.50 + 0.10 1.08 + 0.10 8 + 0.1 2725 6.75 + 0.10 7.15 + 0.10 12 + 0.15 1.75 + 0.10 5.5 + 0.10 4.0 + 0.10 2.0 + 0.10 0.25 + 0.05 1.55 + 0.05 1.50 + 0.10 1.70 + 0.10 8 + 0.1 2728 7.70 + 0.10 7.15 + 0.10 12 + 0.15 1.75 + 0.10 5.5 + 0.10 4.0 + 0.10 2.0 + 0.10 0.25 + 0.05 1.55 + 0.05 1.55 + 0.10 1.20 + 0.10 12 + 0.1 4527 7.12 + 0.10 11.7 + 0.10 24 + 0.30 1.75 + 0.10 11.5 + 0.10 4.0 + 0.10 2.0 + 0.10 0.30 + 0.10 1.55 + 0.05 1.50 + 0.10 1.55 + 0.10 12 + 0.1 PART NUMBER EXAMPLE RESISTANCE LR1WSR - R05 - J Size Code Ohms 0.5mΩ 1mΩ 10mΩ 100mΩ Code 0R0005 0R001 0R01 0R1 Resistance Tolerance Page 4 of 4 RFE International • Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail [email protected] C2BB05 2012.08.9