Approval sheet WR01X 5%, 1% General purpose chip resistors Size 01005 *Contents in this sheet are subject to change without prior notice. Page 1 of 7 ASC_WR01X_V02 Oct.2010 Approval sheet FEATURE 1. Ultra small and high precision size and light weight 2. High reliability and stability 3. Reduced size of final equipment 4. Suitable for high density print circuit board assembly 5. Higher component and equipment reliability 6. Lead free product APPLICATION * Mobile phone * PDA, MP3, Ipod, iPHONE * DSC, DVs * Palmtop computers * Mini module 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 a pure Tin. Fig 1. Consctruction of Chip-R WR01X Page 2 of 7 ASC_WR01X_V02 Oct.2010 Approval sheet QUICK REFERENCE DATA Item General Specification Series No. WR01X Size code 01005 (0402) 4.7 ~ 1M (5%, 1%), Jumper Resistance Range Resistance Tolerance 1% 5% E96/E24 E24 100 - 1M, 200 ppm TCR (ppm/C) 10 - 91, 300 ppm 4.7 - 9.1, +600~ -200 ppm Max. dissipation @ Tamb=70C 1/32 W Max. Operation Voltage (DC or RMS) 15V Max. Overload Voltage (DC or RMS) 30V Climatic category (IEC 60068) 55/125/56 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 x Resistance Value or Max. RCWV listed above, whichever is lower. DIMENSION(unit : mm) Protective c oat WR01X T End term ination L 0.40 0.02 Tb W 0.20 0.02 Tt T 0.13 0.02 Tb 0.10 0.03 Tt 0.08 0.03 Resistive layer Ceramic Substrate W T L MARKING WR01X has no marking. Page 3 of 7 ASC_WR01X_V02 Oct.2010 Approval sheet FUNCTIONAL DESCRIPTION Product characterization Standard values of nominal resistance are taken from the E24/E96 series for resistors with a tolerance of 5% & 1%. 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. SOLDERING CONDITION The robust construction of chip resistors allows them to be completely immersed in a solder bath of 260C 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 245C during 3 seconds. The test condition for no leaching is 260C 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 WR01X Page 4 of 7 ASC_WR01X_V02 Oct.2010 Approval sheet CATALOGUE NUMBERS The resistors have a catalogue number starting with : WR01 X 472_ J A L Size code Type code Resistance code Tolerance Packaging code Termination code WR01 X : Normal 5% E24 : 2 significant digits followed by no. of zeros and a blank J : 5% A : 7" Reeled taping (20Kpcs/Reel) L = Sn base (lead free) : 01005 4.7 =4R7_ 10 =100_ 220 =221_ Jumper =000_ F : 1% P : Jumper ("_" means a blank) 1%, E24+E96: 3 significant digits followed by no. of zeros Page 5 of 7 100 =1000 37.4K =3742 ASC_WR01X_V02 Oct.2010 Approval sheet TEST AND REQUIREMENTS (JIS C 5201-1 : 1998) TEST DC resistance Clause 4.5 Temperature Coefficient of Resistance(T.C.R) Clause 4.8 REQUIREMENT PROCEDURE / TEST METHOD 0 Resistor DC resistance values measured at the test voltages specified below : Within the specified <10@0.1V, <100@0.3V, <1K@1.0V, <10K@3V, <100K@10V, <1M@25V, <10M@30V <50m tolerance Natural resistance change per change in degree centigrade. Refer to R2 - R1 x 106 R1 (t2 - t1 ) "QUICK REFERENCE DATA" (ppm/C) t1 : 20C+5C-1C N/a R1 : Resistance at reference temperature R2 : Resistance at test temperature Short time overload (S.T.O.L) Clause 4.13 Resistance to soldering heat(R.S.H) Permanent resistance change after a 2 second application of a voltage 2.5 times RCWV or the maximum overload R/R max. (1%+0.05) voltage specified in the above list, whichever is less. <50m Un-mounted chips completely immersed for 100.5second R/R max. (1%+0.05) in a SAC solder bath at 2605C no visible damage <50m IEC 60068-2-58: 2004 Solderability IEC 60068-2-58: 2004 Temperature cycling Clause 4.19 Un-mounted chips completely immersed for 20.3second in 95% coverage min., good tinning and no a SAC solder bath at 2355 visible damage 30 minutes at -55C3C, 2~3 minutes at 20C+5C-1C, 30 minutes at +125C3C, 2~3 minutes at 20C+5C-1C, total 5 continuous cycles R/R max. (1%+0.05) Damp Heat 1000+48/-0 hours, loaded with RCWV or Vmax in humidity R/R max. (5%+0.10) (Load life in humidity) chamber controller at 40C2C and 90~95% relative no visible damage Clause 4.24 humidity, Load Life (Endurance) 1000+48/-0 hours; loaded with RCWV or Vmax in chamber R/R max. (5%+0.10) Clause 4.25 controller 702C, 1.5 hours on and 0.5 hours off no visible damage Endurance at the upper category temperature 125C, no load, 1000 hours R/R max. (5%+0.10) Bending strength Resistors mounted on a 90mm glass epoxy resin PCB(FR4), No visual damage, Clause 4.33 bending once 3mm for 10sec. Adhesion Pressurizing force: 2N, Test time: 101sec. < 50m < 50m < 50m < 50m no visible damage R/R max. (1%+0.05) < 50m No visual damage Clause 4.32 Page 6 of 7 ASC_WR01X_V02 Oct.2010 Approval sheet PACKAGING Paper Tape specifications (unit :mm) t1 Series No. A B W F E WR01X 0.450.03 0.240.03 8.000.20 3.500.05 1.750.10 Series No. P1 P0 D t1 T WR01X 2.000.05 4.000.05 1.50 +-00..10 0.310.03 0.360.03 Reel dimensions Symbol A B C D (unit : mm) 180.0+0/-1.5 60.0+1/-0 13.00.2 9.0+1/-0 Taping quantity and Tape material - Chip resistors 20,000 pcs/reel, Paper tape. Page 7 of 7 ASC_WR01X_V02 Oct.2010