WR10X471JTL

Approval sheet WR10X(W) ±1%, ±5% Thick film Technology General purpose chip resistors Size 1210 Page 1 of 8 ASC_WR10X(W)_V13 Oct.- 2011 Approval sheet FEATURE 1. High reliability and stability 2. Reduced size of final equipment 3. Lower assembly costs 4. Higher component and equipment reliability 5. RoHS compliant and Lead free products APPLICATION • Consumer electrical equipment • Automotive application • EDP, Computer application • Telecom application DESCRIPTION The resistors are constructed in a high grade ceramic body (aluminum oxide). Internal metal electrodes are added at each end and connected by a resistive paste that is applied to the top surface of the substrate. The composition of the paste is adjusted to give the approximate resistance required and the value is trimmed to nominated value within tolerance which controlled by laser trimming of this resistive layer. The resistive layer is covered with a protective coat. Finally, the two external end terminations are added. For ease of soldering the outer layer of these end terminations is Tin (lead free) alloy. Fig 1. Construction of Chip-R Page 2 of 8 ASC_WR10X(W)_V13 Oct.- 2011 Approval sheet QUICK REFERENCE DATA Item General Specification Series No. WR10X(W) Size code 1210 ( 3225 ) ±1% ( E96/E24 ), ±5% ( E24 ) Resistance Tolerance Resistance Range Jumper, 1Ω ~ 10MΩ ( E96+E24 series) TCR (ppm/°C) > 10R , ≤ ± 100 ppm/°C -55°C ~ +155°C 1R ~ 10R, ≤ ± 200 ppm/°C Max. dissipation at Tamb=70°C 1/3 W ( 0.33 W ) Max. Operation Voltage (DC or RMS) 200V Max. Overload Voltage (DC or RMS) 400V Climatic category Type 55/155/56 WR10X Power Rating At 70C 1/3 W Resistance Max. 50mR Rated Current 2.5 A Peak Current 6A Operating Temperature -55C ~ 155C Note : 1. This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication 60115-8” 2. Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by RCWV = Rated Power × Resistance Value or Max. RCWV listed above, whichever is lower. DIMENSIONS(unit : mm) Part No WR10X L 3.10 ± 0.10 W 2.60 ± 0.10 Tt 0.50 ± 0.20 Tb 0.50 ± 0.20 *1 T 0.55 ± 0.10 *1 original 0.45+/-0.20 Page 3 of 8 ASC_WR10X(W)_V13 Oct.- 2011 Approval sheet MARKING 3-digits marking（±5%） Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance value. 4-digits marking（±1%） Each resistor is marked with a four digits code on the protective coating to designate the nominal resistance value. Example RESISTANCE 90Ω 100Ω 6800Ω 47000Ω 4-digits marking 90R0 1000 6801 4702 3-digits marking - 101 682 473 FUNCTIONAL DESCRIPTION Product characterization Standard values of nominal resistance are taken from the E96 & E24 series for resistors with a tolerance of ±1%, ±5%. The values of the E24/E96 series are in accordance with “IEC publication 60063”. Derating The power that the resistor can dissipate depends on the operating temperature; see Fig.2 Figure 2 Maximum dissipation in percentage of rated power as a function of the ambient temperature MOUNTING Due to their rectangular shapes and small tolerances, Surface Mountable Resistors are suitable for handling by automatic placement systems. Chip placement can be on ceramic substrates and printed-circuit boards (PCBs). Electrical connection to the circuit is by individual soldering condition. The end terminations guarantee a reliable contact. Page 4 of 8 ASC_WR10X(W)_V13 Oct.- 2011 Approval sheet SOLDERING CONDITION 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 235°C during 2 seconds. 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 CATALOGUE NUMBERS The resistors have a catalogue number starting with . WR10 X 4702 Size code Type code Resistance code Tolerance Packaging code Termination code WR10: 1210 X : 5%, E24: 2 significant digits followed by no. of zeros J: ± 5% T: 7” Reeled taping L = Sn base (lead free) 5%: 1R ~ 10M 1%: 10R ~ 1M W: 1%: < 10R; > 1M0
100Ω = 101_ 10KΩ = 103 F T F: ± 1% L P: Jumper 1% E24+E96: 3 significant digits followed by no. of zeros 102Ω =1020 37.4KΩ =3742 220Ω =2200 Reeled tape packaging : 8mm width paper taping 5000pcs per 7” reel. Page 5 of 8 ASC_WR10X(W)_V13 Oct.- 2011 Approval sheet TEST AND REQUIREMENTS(JIS C 5201-1 : 1998) The tests are carried out in accordance with IEC publication 68, "Recommended basic climatic and mechanical robustness testing procedure for electronic components" and under standard atmospheric conditions according to IEC 68-1, subclause 5.3, unless otherwise specified. Temperature: 15ºC to 35ºC. Relative humidity: 45% to 75%. Air pressure: 86kPa to 106 kPa (860 mbar to 1060 mbar). TEST DC resistance DC resistance values measured at the test voltages specified below : Clause 4.5