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Page 1 of 8 ASC_WAxxX_J_V06 Jul - 2014 WA04X, WA06X General purpose chip resistors array Size 0402x4, 0603x4 (8p4R) (Automotive )

Page 2 of 8 ASC_WAxxX_J_V06 Jul - 2014 FEATURE 1. Small size and light weight 2. Reduced size of final equipment 3. Lower surface mounted assembly costs 4. Automotive grade AEC Q-200 compliant 5. RoHS compliant and Lead (Pb) free terminations. APPLICATION

  • Consumer electrical equipment
  • EDP, Computer application
  • Telecom
  • Automotive application ( non-safety part )

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 a Tin (Pb free) solder alloy. Fig 1. Construction of a Chip-R array (convex type)

Page 3 of 8 ASC_WAxxX_J_V06 Jul - 2014 QUICK REFERENCE DATA Item General Specification Series No. WA04X WA06X Size 0402x4 (1005x4) 0603x4 (1608x4) Termination construction Convex Convex Resistance Tolerance ±5%, ±1% ±5%, ±1% Resistance Range ±5%: 3 Ω ~ 1M Ω , Jumper ±1%: 10 Ω ~ 1M Ω ±5%: 1Ω ~ 1M Ω , Jumper ±1%: 10 Ω ~ 1M Ω TCR (ppm/ °C) 10 Ω <R<1M Ω R ≤10 Ω , R ≧1M Ω ≤ ± 200 -300~+500 ≤ ± 200 -300~+500 Max. dissipation at T amb =70 °C 1/16 W 1/10 W Max. Operation Voltage (DC or RMS) 50V 50V Max. overload voltage 100V 100V Climatic category 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 Value Resistance Power Rated RCWV ×= or Max. RCWV listed above, whichever is lower. DIMENSIONS (unit : mm) 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 ± 0.10

Page 4 of 8 ASC_WAxxX_J_V06 Jul - 2014 MARKING 3-digits marking for E24 series +/-1% , +/-5% products. No marking for E96 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 of 10.0 or greater the first 2 digits apply to the resistance value and third digit indicates the zeros of multiple to follow. Example RESISTANCE 10 ΩΩ ΩΩ 100 ΩΩ ΩΩ 6800 ΩΩ ΩΩ 47000 ΩΩ ΩΩ 3-digits marking 100 101 682 473 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 8 ASC_WAxxX_J_V06 Jul - 2014 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 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 4. Fig 4. Infrared soldering profile for Chip Resistors array TEST AND REQUIREMENTS Essentially all tests are carried out according to the schedule of IEC publication 115-8, category LCT /UCT /56(rated temperature range : Lower C ategory Temperature, U pper C ategory 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: 15 °C to 35 °C. 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.

Page 6 of 8 ASC_WAxxX_J_V06 Jul - 2014 REQUIREMENT TEST PROCEDURE / TEST METHOD Resistor 0ΩΩ ΩΩ Electrical Characteristics JISC5201-1: 1998 Clause 4.8 - DC resistance values measurement - Temperature Coefficient of Resistance (T.C.R) Natural resistance change per change in degree centigrade. ( ) 12 1 12 10 ×− ttR RR (ppm/ °C) t 1 : 20° C+5° C-1° C R 1 : Resistance at reference temperature R 2 : Resistance at test temperature Within the specified tolerance Refer to “QUICK REFERENCE DATA” <50m Ω Resistance to soldering heat (R.S.H) MIL-STD-202 method 210 Un-mounted chips completely immersed for 10 ±1second in a SAC solder bath at 270 ℃±5ºC ΔR/R max. ±(1%+0.05 Ω ) <50m Ω Solderability J-STD-202 a) Bake the sample for 155 ℃ dwell time 4hrs/ solder dipping 235 ℃/ 5sec. b) Steam the sample dwell time 1 hour/ solder dipping 260 ℃/ 7sec. 95% coverage min., good tinning and no visible damage Temperature cycling JESD22 method JA-104 1000 cycles, -55C ~ +155C, dwell time 5~10min ΔR/R max. ±(1%+0.05 Ω ) < 50m Ω Moisture Resistance MIL-STD-202 method 106 65C, 80~100% RH, 10 cycles, 24 hours/ cycle ΔR/R max. ±(1%+0.05Ω ) < 50m Ω Bias Humidity MIL-STD-202 method 103 1000+48/-0 hours; 85 °C, 85% RH, 10% of operation power ΔR/R max. ±(2%+0.1Ω ) No visible damage <50m Ω Operational Life MIL-STD-202 method 108 1000+48/-0 hours; 35% of operation power, 125±2°C ΔR/R max. ±(2%+0.1Ω ) No visible damage < 50m Ω High Temperature Exposure MIL-STD-202G 108 1000+48/-0 hours; without load in a temperature chamber controlled 155 ±3°C ΔR/R max. ±(2%+0.1Ω ) No visible damage <50m Ω Board Flex AEC-Q200-005 Resistors mounted on a 90mm glass epoxy resin PCB(FR4), bending once 2mm for 10sec ΔR/R max. ±(1.0%+0.05 Ω ). No visible damage <50m Ω Terminal strength AEC-Q200-006 Pressurizing force: 1Kg, Test time: 60±1sec. No remar kable damage or removal of the terminations Thermal shock MIL-STD-202G 107G Test –55 to 155℃/ dwell time 15min/ Max transfer time 20sec/ 300cycles ΔR/R max. ±(1%+0.05 Ω ) No visible damage <50m Ω ESD AEC-Q200-002 Test contact 1.0KV ΔR/R max. ±(1.0%+0.05 Ω ) No visible damage <50m Ω Short Time Overload Permanent resistance change after a 5sec application of a voltage 2.5xUR or max. overload voltage, whichever is less. ΔR/R max. ±(2%+0.10 Ω ) <50m Ω

Page 7 of 8 ASC_WAxxX_J_V06 Jul - 2014 TEST CONDITION FOR JUMPER (0 ΩΩ ΩΩ ) Item WA04X WA06X Power Rating At 70 °C 1/16W 1/10W Resistance MAX.50m Ω MAX.50m Ω Rated Current 1A 1A Peak Current 1.5A 3A Operating Temperature -55~155°C -55~155 °C CATALOGUE NUMBERS The resistors have a catalogue number starting with . WA X XXXX J T L J Size code 06: 0603 (1608) 04:0402 (1005) Type code X : x 4, Convex Resistance code 5%,E24 : 2 significant digits followed by no. of zeros and a blank 10 Ω =100_ 220 Ω =221_ Jumper =000_ (“_” means a blank) 1%,E24+E96: 3 significant digits followed by no. of zeros . 10 Ω =10R0 220 Ω =2200 Tolerance F : ±1% J : ±5% P : Jumper Packaging code T : 7” Reel taping B : Bulk Termination code L = Sn base (lead free) Visual code J = Automotive grade WA06X, 1. Reeled tape packaging : 8mm width paper taping 5000pcs per reel. WA04X, 1. Reeled tape packaging : 8mm width paper taping 10,000pcs per reel.

Page 8 of 8 ASC_WAxxX_J_V06 Jul - 2014 PACKAGING Paper Tape specifications (unit :mm) Symbol A B W F E WA06X, 3.60 ±0.20 2.00 ±0.20 WA04X 2.20±0.20 1.20 ±0.20 Symbol P1 P0 Φ D T WA06X, 4.00 ±0.10 Max. 1.0 WA04X 2.00 ±0.05 4.00 ±0.10 1 . 0 0 . 050 . 1+ Φ Max. 0.6 Reel dimensions Symbol A B C D