Approval sheet WA04, WA06 1%, 5%, Convex Type & Concave Type General purpose chip resistors array Size 0402x2 (4p2R) Size 0402x4, 0603x4 (8p4R) Size 0602x8 (16p8R) *Contents in this sheet are subject to change without prior notice. Page 1 of 9 ASC_WA04/06_V15 Oct.2010 Approval sheet FEATURE 1. Small size and light weight 2. Reduced size of final equipment 3. Lower surface mounted assembly costs 4. Higher component and equipment reliability 5. RoHS compliant and lead free products. APPLICATION * Consumer electrical equipment * EDP, Computer application * Telecom DESCRIPTION The resistors array is 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 within tolerance by laser cutting 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. Consctruction of a Chip-R array (convex Type) Page 2 of 9 Fig 2. Consctruction of a Chip-R array (concave Type) ASC_WA04/06_V15 Oct.2010 Approval sheet QUICK REFERENCE DATA Item Series No. Size Resistance Tolerance Resistance Range TCR (ppm/C) 10 R 1M R<10, R>1M Max. dissipation at Tamb=70C Max. Operation Voltage (DC or RMS) Max. overload voltage Climatic category WA04Y(Convex) 0402x2 (1005x2) General Specification WA06X(Convex) 0603x4 (1608x4) WA04X(Convex) 0402x4 (1005x4) 5% 1% 5% 1% 5% 3 ~ 1M, Jumper 10 ~ 1M 3 ~ 1M Jumper 10 ~ 1M 300 400 200 - 200 -300~+500 100 - WA06W(Convex) 0602x8 (1605x8) 1% WA06T(Concave) 0603x4 (1608x4) 5% 1% 5% 1 ~ 10M 10 ~ 100K, 10 ~ 100K 10 ~ 1M, 10 ~ 1M, Jumper, Jumper Jumper, 200 -300~+500 200 - 200 - 200 - 200 - 1/16 W 1/16 W 1/10 W 1/16 W 1/10 W 25V 50V 50V 50V 50V 50V 100V 100V 100V 100V 55/155/56 55/155/56 55/155/56 Note : 1. Climatic category refer to IEC 60068 2. This is the maximum voltage that may be continuously supplied to the resistor element, see "IEC publication 60115-8" 3. 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. DIMENSIONS (unit : mm) WA04Y L 1.00 0.10 W 1.00 0.10 T 0.35 0.10 P 0.65 0.10 A 0.34 0.10 Ta 0.20 0.15 Tb 0.25 0.17 W P Ta T Tb A L Page 3 of 9 ASC_WA04/06_V15 Oct.2010 Approval sheet WA04X WA06X L 2.00 0.10 3.20 0.10 W 1.00 0.10 1.60 0.10 T 0.45 0.10 0.50 0.10 P 0.50 0.05 0.80 0.10 A 0.40 0.10 0.60 0.10 B 0.20 0.10 0.30 0.10 C 0.30 0.05 0.40 0.10 G 0.25 0.10 0.30 0.20 WA06W L 4.00 0.20 W 1.60 0.15 T 0.45 0.10 B 0.30 0.20 G 0.30 0.20 D 0.20 0.10 P 0.50 0.20 H1 0.40 0.20 H2 0.30 0.10 WA06T Page 4 of 9 L 3.20+0.20/-0.10 W 1.60+0.20/-0.10 T 0.60 0.10 P 0.80 0.10 A 0.60 0.15 B 0.35 0.15 C 0.50 0.15 G 0.50 0.15 ASC_WA04/06_V15 Oct.2010 Approval sheet MARKING 3-digits marking for E24 series 1% ,5% products Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance value. For values up to 9.1 the R is used as a decimal point. For values of 10.0 or greater the first 2 digits apply to the resistance value and third indicate the number of zeros to follow. Example RESISTANCE 4.7 10 100 6800 47000 3-digits marking 4R7 100 101 682 473 No marking for WA04Y chip resistors array and E96 series resistance. FUNCTIONAL DESCRIPTION Product characterization Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of 5%, The values of the E24 series are in accordance with "IEC publication 60063" Standard values of nominal resistance are taken from the E24/E96 series for resistors with a tolerance of 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.3. Figure 3 Maximum dissipation in percentage of rated power as a function of the ambient temperature CONSTRUCTION R1=R2=R3=R4 Page 5 of 9 ASC_WA04/06_V15 Oct.2010 Approval sheet 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 235C during 2 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 4. Fig 4. Infrared soldering profile for Chip Resistors array Page 6 of 9 ASC_WA04/06_V15 Oct.2010 Approval sheet TEST AND REQUIREMENTS(JIS C 5201-1 : 1998) Essentially all tests are carried out according to the schedule of IEC publication 115-8, category LCT/UCT/56(rated temperature range : Lower Category Temperature, Upper Category Temperature; damp heat, long term, 56 days). The testing also meets the requirements specified by EIA, EIAJ and JIS. 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 60068-1, subclause 5.3. Unless otherwise specified, the following value supplied : Temperature: 15C to 35C. Relative humidity: 45% to 75%. Air pressure: 86kPa to 106 kPa (860 mbar to 1060 mbar). All soldering tests are performed with midly activated flux. TEST REQUIREMENT Resistor PROCEDURE DC resistance Clause 4.5 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, tolerance <1M@25V, <10M@30V Temperature Coefficient of Resistance (T.C.R) Clause 4.8 Natural resistance change per change in degree centigrade. R2 - R1 x 106 R1 (t2 - t1 ) (ppm/C) Jumper < 50m Refer to N/a "QUICK REFERENCE DATA" t1 : 20C+5C-1C 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) Clause 4.18 Permanent resistance change after a 5second application of a R/R max. (2%+0.10) voltage 2.5 times RCWV or the maximum overload voltage specified in the above list, whichever is less. Un-mounted chips completely immersed for 101second in a SAC R/R max. (1%+0.05) solder bath at 2605C no visible damage Solderability Un-mounted chips completely immersed for 20.5 second in a SAC good tinning (>95% covered) solder bath at 2355 no visible damage Clause 4.17 Temperature cycling Clause 4.19 Load life (endurance) Clause 4.25 30 minutes at -55C3C, 2~3 minutes at 20C+5C-1C, 30 R/R max. (1%+0.05) minutes at +155C3C, 2~3 minutes at 20C+5C-1C, total 5 no visible damage continuous cycles 1000 +48/-0 hours, loaded with RCWV or Vmax in chamber R/R max.(3%+0.10) controller 702C, 1.5 hours on and 0.5 hours off For 10R<1M ; R/R max.(5%+0.10) For R<10, R1M R/R max.(3%+0.10) < 50m < 50m < 50m < 50m Load life in Humidity Clause 4.24 1000 +48/-0 hours, loaded with RCWV or Vmax in humidity chamber controller at 40C2C and 90~95% relative humidity, 1.5hours on and 0.5 hours off Adhesion Clause 4.32 Insulation Resistance Pressurizing force: 5N, Test time: 101sec. No remarkable damage or removal of the terminations. Apply the maximum overload voltage (DC) for 1minute R10G Clause 4.6 Dielectric Withstand Apply the maximum overload voltage (AC) for 1 minute No breakdown or flashover < 50m For 10R<1M ; R/R max.(5%+0.10) For R<10, R1M Voltage Clause 4.7 Page 7 of 9 ASC_WA04/06_V15 Oct.2010 Approval sheet TEST CONDITION FOR JUMPER (0 ) Item WA04Y WA04X WA06X WA06W WA06T 1/16W 1/16W 1/10W 1/16W 1/10W MAX.50m MAX.50m MAX.50m MAX.50m MAX.50m Rated Current 1A 1A 1A 2A 1A Peak Current 1.5A 1.5A 3A 3A 3A -55~155C -55~155C -55~155C -55~155C -55~155C Power Rating At 70C Resistance Operating Temperature CATALOGUE NUMBERS The resistors have a catalogue number starting with . WA X XXXX X X L Size code Type code Resistance code Tolerance Packaging code Termination code 06: 0603 (1608) X : x 4, Convex F: 1% T : 7" Reel taping 04:0402(1005) Y : x 2, Convex 5% E24 : 2 significant digits followed by no. of zeros and a blank J : 5% B : Bulk L = Sn base (lead free) W :x 8, Convex T : x 4, Concave 4.7 =4R7_ 10 =100_ 220 =221_ Jumper =000_ P : Jumper ("_" means a blank) 1%, E24+E96: 3 significant digits followed by no. of zeros 100 =1000 37.4K =3742 WA06X, WA06T 1. Reeled tape packaging : 8mm width paper taping 5000pcs per reel. 2. Bulk packaging : 5000pcs per polybag WA06W 1. Reeled tape packaging : 12mm width paper taping 5000pcs per reel. 2. Bulk packaging : 5000pcs per polybag WA04X, WA04Y 1. Reeled tape packaging : 8mm width paper taping 10,000pcs per reel. Page 8 of 9 ASC_WA04/06_V15 Oct.2010 Approval sheet PACKAGING Paper Tape specifications (unit :mm) Symbol A B WA06X,WA06T 3.600.20 2.000.20 WA04X 2.200.20 1.200.20 WA04Y 1.150.10 1.150.10 WA06W 4.20 +-00..20 1.80 +-00..12 0 12.000.10 5.500.05 Symbol P1 P0 D T WA06X,WA06T 4.000.10 WA04X W E 3.500.20 2.000.05 8.000.30 1.750.10 3.500.05 1.750.10 Max. 1.0 4.000.10 1.50 +-00..10 Max. 0.6 0.450.05 WA04Y WA06W F D1.550.05 4.000.10 0.800.05 Reel dimensions Symbol A B C D WA06X,WA04Y,WA04X,WA06T 178.02.0 60.01.0 13.00.2 9.00.5 WA06W 178.02.0 60.01.0 13.00.2 12.41.0 Page 9 of 9 ASC_WA04/06_V15 Oct.2010