WW12RR010FTL

Approval sheet WW12R_V ±1%, ±5% Metal low ohm power chip resistors Size 1206 (1W) Automotive grade AEC Q200 compliant Anti-sulfuration H2S 10ppm x 1000hrs compliant *Contents in this sheet are subject to change without prior notice. Page 1 of 10 ASC_WW12R_V_AUTO_V01 Sep - 2014 Approval sheet FEATURE 1. Metal ultra low and stable TCR performance 2. High power rating and compact size 3. High reliability and stability 4. 100% CCD visual inspection 5. RoHS compliant & complete Lead free 6. Automotive grade AEC Q200 compliant 7. Anti-sulfuration H2S 10ppm x 1000hrs compliant APPLICATION • Power supply • PDA • Digital meter • Computer • Automotives • Battery charger • DC-DC power converter DESCRIPTION The resistors are constructed in a high grade low resistive metal body. The resistive layer is covered with a protective coat and printed a resistance marking code over it. Finally, the two external end terminations are added. For ease of soldering the outer layer of these end terminations is a Lead free terminations. Fig 1. Construction of Chip-R Page 2 of 10 ASC_WW12R_V_AUTO_V01 Sep - 2014 Approval sheet QUICK REFERENCE DATA Item General Specification Series No. WW12R Size code 1206 (3216) Resistance Tolerance ±5% , ±1% Resistance Range 1 ~ 15 mΩ 1 mohm: ±100 ppm/°°C; 2 ~ 15mohm: ±70 ppm/°°C TCR (ppm/°C) 1W Max. power at Tamb=70°C Max. Operation Current 31.6A ~ 8.2A Operation temperature - 55 ~ +155C Note : Max. Operation Current : So called RCWC (Rated Continuous Working Current) is determined by RCWC = Rated Power / Resistance Value listed above. MECHANICAL DATA R005 L W 05 c d d H c Unit: mm Type WW12R Page 3 of 10 Size (inch) Resistance 1206 L (mm) W (mm) H (mm) 3.2±0.15 1.6±0.15 0.32±0.15 1.1±0.25 2mΩ 0.32±0.15 0.5±0.25 3mΩ 0.35±0.1 4mΩ 0.35±0.1 0.85±0.25 5mΩ 0.35±0.1 1.0±0.25 6mΩ 0.35±0.1 1.1±0.25 7mΩ 0.35±0.1 0.70±0.25 8mΩ 0.35±0.1 0.60±0.25 9mΩ 0.30±0.1 0.75±0.25 10mΩ 0.28±0.1 0.50±0.25 12mΩ 0.22±0.1 0.65±0.25 13mΩ 0.22±0.1 0.65±0.25 1mΩ ASC_WW12R_V_AUTO_V01 c (mm) 0.7±0.25 d (mm) 1.3±0.25 Sep - 2014 Approval sheet 15mΩ 0.22±0.1 0.50±0.25 MARKING WW12R each resistor is marked with a 2-digit code with underline on the protective coating to designate the nominal resistance value. Example: 05 = 0.005Ω 10 = 0.010Ω FUNCTIONAL DESCRIPTION Derating curve The power that the resistor can dissipate depends on the operating temperature; see Fig.2 Page 4 of 10 ASC_WW12R_V_AUTO_V01 Sep - 2014 Approval sheet SOLDERING CONDITIONS The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260°C for 10 seconds. Therefore, it is possible to mount Surface Mount Resistors on one side of a PCB and other discrete components on the reverse (mixed PCBs). Surface Mount Resistors are tested for solderability at 245°C during 3 seconds within lead-free solder bath. The test condition for no leaching is 260°C for 30 seconds. Typical examples of soldering processes that provide reliable joints without any damage are given in Fig 3 Fig 3. Infrared soldering profile for Chip Resistors WW12R CATALOGUE NUMBERS The resistors have a catalogue number starting with . WW12 R R005 J T L V Size code Type code Resistance code Tolerance Packaging code Termination code Visual code WW12 R : 1W, 1206 R is first digit followed by 3 significant digits. J : ±5% T : 7” reeled in tape L = Sn base (lead free) V = AEC Q200 compliant with 100% CCD inspection + Anti-sulfur H2S 10ppm x 1000hrs compliant :1206 F : ±1% 0.010Ω = R010 0.005Ω = R005 Reeled tape packaging Page 5 of 10 : 8mm width paper taping 5,000pcs per reel. ASC_WW12R_V_AUTO_V01 Sep - 2014 Approval sheet TEST & REQUIREMENTS Page 6 of 10 ASC_WW12R_V_AUTO_V01 Sep - 2014 Approval sheet Page 7 of 10 ASC_WW12R_V_AUTO_V01 Sep - 2014 Approval sheet WW12R WW12R Page 8 of 10 ASC_WW12R_V_AUTO_V01 Sep - 2014 Approval sheet PACKAGING Plastic Tape specifications (unit :mm) Symbol A B W F E WW12R 3.60±0.20 2.00±0.15 8.00±0.20 3.50±0.05 1.75±0.10 Symbol P1 P0 ΦD T WW12R 4.00±0.10 4.00±0.10 Φ1.50 +−00..10 1.0 max. Reel dimensions Symbol A B C D (unit : mm) Φ180.0 -1.5 Φ60.0±1.0 13.0±0.2 9.0 +1.0 Taping quantity - Chip resistors 5,000 pcs per reel. Page 9 of 10 ASC_WW12R_V_AUTO_V01 Sep - 2014