TOKEN LRC Current Strip Chip Resistors Metal Strip Current Sense Chip Resistors Ultra Low Ohm Resistor Save Space, Time, and Money (LRC) Preview Providing design engineers with an economical low ohmic value, current sense metal strip chip resistor with high quality performance, Token Electronics LRC Series is suitable for applications in the automotive sector for applications that require high power handling (Up to 3W) and low resistance 0.5mΩ. From a certified supplier offering the automotive quality, Token’s LRC Series gives all round superior performance for current sensing in lamp detection, mirrors, window lift, steering and seat controls. As a first instance, the LRC Series displays enhanced power handling capabilities, against other technologies. Thermal conductivity is important for chip resistors - little heat is dissipated directly into the air, and instead, is conducted out through the solder pads. The heat generated from the specially constructed LRC resistor is more readily dispersed, therefore preventing localised heating, which contributes to TCR and thermal EMF errors, premature aging and possible scorching of the PC board. They are rated for ambient operation from -55°C to +170°C. The LRC Series is RoHS compliant and lead free. Contact us with your specific needs. Features Applications - Low TCR ±50, ±100PPM/°C - High Wattage Rating Up to 3W - Customized Resistance Available - Resistance Values from 0.5m ohms to 20m ohms - Without Laser Trimmed with Very Low Inductance Version 2010 http://www.token.com.tw/ - For NB power management. - For MB power management. - For Monitor power management. - SWPS: DC-DC converter, Charger, Adaptor. rfq token.com.tw 01 of 05 TOKEN LRC Current Strip Chip Resistors Low Ohmic (LRC) Construction R001 Sn Solder Plated Metal Barrier Layer (Ni) R001 Overcoat Alloy Plate Overcoat Alloy Plate Solder Plating Figure 1 Figure 2 SMD 2512, 2010, 1206 (LRC) Dimensions D L T Type LRC12*T*0M50G LRC12*T*0M75G LRC12*T*R001G LRC12*T*1M50G LRC12*T***G LRC12*T*R004G LRC12*T***G LRC12*T*R007G LRC12*T***G LRC12*T*0M50 LRC12*T*0M75 LRC12*T*R001 LRC12*T*1M50 LRC12*T*R002 LRC12*T*2M50 LRC12*T*R003 LRC12*T*R004 LRC12*T*R005 LRC12*T*R006 LRC12*T*6M50 LRC12*T*R007 LRC10*T*** LRC06*T*** Resistance (mΩ) 0.50 0.75 1.0 1.5 2.0~3.0 4.00 5.0~6.0 7.00 8.0~15 0.50 0.75 1.00 1.50 2.00 2.50 3.00 4.00 5.00 6.00 6.50 7.00 1.0~10 1.0~10 L(mm) 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 6.35±0.25 5.08±0.25 3.20±0.25 W W(mm) 3.00±0.20 3.00±0.20 3.00±0.20 3.00±0.20 3.00±0.20 3.00±0.20 3.00±0.20 3.00±0.20 3.00±0.20 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 3.18±0.25 2.54±0.15 1.60±0.10 T(mm) 0.60±0.20 0.60±0.20 0.60±0.20 0.60±0.20 0.60±0.20 0.60±0.20 0.60±0.20 0.60±0.20 0.60±0.20 1.40±0.20 1.00±0.20 0.80±0.20 0.65±0.20 0.50±0.20 1.00±0.20 0.70±0.20 0.60±0.20 0.50±0.20 0.50±0.20 0.45±0.20 0.45±0.20 0.60±0.20 0.60±0.20 D(mm) 2.68±0.25 2.48±0.25 1.93±0.25 1.43±0.25 1.18±0.25 2.18±0.25 1.93±0.25 1.43±0.25 1.18±0.25 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.43±0.38 1.67±0.63 0.98±0.38 Notice : TOKEN is capable of manufacturing the optional spec based on customer’s requirement. 02 of 05 http://www.token.com.tw/ rfq token.com.tw Version 2010 TOKEN LRC Current Strip Chip Resistors SMD 2512, 1206 (LRC) Standard Electrical Specifications Type LRC12*TK** LRC12*TE** LRC12*TW** LRC12*TD**G LRC12*TD** LRC06*TD** Power Rating at 80°C 1W 1W 1W 1W 1W 1W Operating Temp. Range -55°C ~ +170°C Resistance Tolerance (±%) 1, 3, 5 Resistance (mΩ) 2.5~3.5 4.0~5.5 6.0~7.0 11.0~15.0 0.5~2.0 1.0~10.0 TCR (±PPM/°C) 150 100 75 50 50 50 Resistance (mΩ) 0.5~2.0 3.5 6.5~10.0 4.0~6.0 1.0~3.0 0.5~0.75 1.0~10.0 TCR (±PPM/ °C) 50 50 50 50 50 100 50 Remark : Operating Current I = √ ( P / R ) , Operating Voltage V = √ ( P * R ) SMD 2512, 2010 (LRC) High Power Rating Electrical Specifications Type LRC12*TDS* LRC12*TDS*G LRC12*TDS*G LRC12*TDB*G LRC12*TDR*G LRC12*TER*G LRC10*TDA* Power Rating at 80°C 2.0W 2.0W 2.0W 2.5W 3.0W 3.0W 1.5W Operating Temp. Range -55°C ~ +170°C Resistance Tolerance (±%) 1, 3, 5 Remark : Operating Current I = √ ( P / R ) , Operating Voltage V = √ ( P * R ) Surface Mount Chips (LRC) Packing Quantity Type LRC12 (2512) LRC10 (2010) LRC06 (1206) Emboss Plastic Tape 2,000 2,000 2,000 (LRC) Derating Curve Power Ration (%) 100 80 60 40 20 0 0 20 40 60 70 80 100 120 140 160 180 Ambient Temperature (°C) Version 2010 http://www.token.com.tw/ rfq token.com.tw 03 of 05 TOKEN LRC Current Strip Chip Resistors Surface Mount (LRC) Emboss Plastic Tape Specifications Top Tape Φ D0 E F B T A Resistor Emboss Tape Size LRC12 Resistance (mΩ) A B W P1 E F P2 P0 P0 W direction of unreeling P1 P2 Φ D1 ΦD0 ΦD0 T 0.50~7 3.40±0.1 6.73±0.1 12.0±0.1 1.75±0.1 5.5±0.05 4.0±0.1 4.00±0.1 2.0±0.05 1.50±0.10 1.4min 0.81±0.1 0.50~15 3.40±0.1 6.75±0.1 12.0±0.1 1.75±0.1 5.5±0.05 4.0±0.1 4.00±0.1 2.0±0.05 1.55±0.05 1.4min 0.80±0.1 LRC10 1~10 2.85±0.1 5.55±0.1 12.0±0.2 1.75±0.1 5.5±0.05 4.0±0.1 4.00±0.1 2.0±0.05 1.55±0.05 1.4min 0.85±0.1 LRC06 1~10 1.90±0.1 3.60±0.1 1.55±0.05 1.0min 0.87±0.1 8.0±0.2 1.75±0.1 3.5±0.05 4.0±0.1 4.00±0.1 2.0±0.05 Notice: 1. The cumulative tolerance of 10 sprocket hole pitch is ±0.2mm. 2. Carrier camber shall be not more than 1mm per 100mm through a length of 250mm. 3. A & B measured 0.3mm from the bottom of the packet. 4. t measured at a point on the inside bottom of the packet to the top surface of the carrier. 5. Pocket position relative to sprocket hole is measured as the true position of the pocket and not the pocket hole. Low Ohmic (LRC) Environmental Characteristics Item Specification Black coating Green coating Temperature Coefficient of Resistance As Spec. Thermal Shock ±0.5%+0.5mΩ ±1% Short Time Overload ±0.5%+0.5mΩ ±1% Resistance to Dry Heat ±1%+0.5mΩ ±1% Load Life ±1%+0.5mΩ ±1% ±0.5%+0.5mΩ ±1% Resistance to Soldering Heat Solderability 95%min coverage Test Method MIL-STD-202 Method 304 +25/-30/+25/+130/+25°C MIL-STD-202 Method 107G -55°C~150°C, 100 cycles JIS-C-5202-5.5 RCWV*2.5 or Max Overloading Voltage, 5 seconds JIS-C-5202-7.2 96 hours @ +125°C without load MIL-STD-202 M108 RCWV, 70°C, 1.5 hours on, 0.5 hours off 1000~1048 hours MIL-STD-202F Method 210E 260±5°C, 10±1second MIL-STD-202F Method 210E 260±5°C, 2±0.5second Remark: Green coating can’t be work with wave soldering bath. Humidity < 80%RH; Storage Temperature: 25±3°C 04 of 05 http://www.token.com.tw/ rfq token.com.tw Version 2010 TOKEN LRC Current Strip Chip Resistors How to Order LRC 12 H TR D R011 G Part Number Dimensions (L×W) 12 10 06 Code EIA2512 EIA2010 EIA1206 Power Rating Dimensions (L×W) 6.3×3.1mm Code 5.1×2.5mm 3.2×1.6mm A S R B Resistance Tolerance Code J H F Resistance Tolerance ±5% ±3% ±1% Package Code TR Packaging Taping Reel TCR Code D W E K Power Rating Standard (1W) (1.5W) (2W) (3W) (2.5W) Resistance Code 0M50 0M75 1M50 R002 R010 Resistance 0.00050Ω 0.00075Ω 0.00150Ω 0.00200Ω 0.01000Ω Protective Coating TCR ±50PPM /°C ±75PPM/°C ±100PPM /°C ±150PPM /°C Code G **2010/1206 Packaging Black Coating Green Coating No coating / marking Back to 1st Page - Current Sense Metal Strip Chip Resistors (LRC) Version 2010 http://www.token.com.tw/ rfq token.com.tw 05 of 05