WR12 MULTICOMP | Alldatasheet

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Features

  • High reliability and stability
  • Reduced size of final equipment
  • Lower assembly costs and halogen free products
  • Higher component and equipment reliability Application
  • Consumer electrical equipment
  • EDP, Computer application
  • Telecom application Construction of Chip-R Laser Trimmed Resistive element Primary Layer Termination Marking Protective Layer Alumina Substrate Item General Specification Series No. WR12 WR08 WR06 WR04 Size code 1206(3216) 0805(2012) 0603(1608) 0402(1005) Resistance Range 1Ω~10MΩ (±5% tolerance), Jumper 1Ω~10MΩ (±1% tolerance) Resistance Tolerance ±1% E96/E24 ±5% E24 ±1% E96/E24 ±5% E24 ±1% E96/E24 ±5% E24 ±1% E96/E24 ±5% E24 TCR (ppm/°C) 10MΩ ≥R >10Ω R≤10Ω ≤ ± 100 -200 to +400 Max. dissipation @ Tamb=70°C 1/4 W 1/8 W 1/10 W 1/16 W Max. Operation Voltage (DC or RMS) 200V 150V 75V 50V Max. Overload Voltage (DC or RMS) 400V 300V 150V 100V Climatic category 55/155/56 Quick Reference Data

Page <2> V1.007/05/25 Thick Film General Purpose Chip Resistors WR12, WR08, WR06, WR04 Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro 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. 3. The resistance of Jumper is defined <0.05Ω Diagram Marking 3-digits marking (±1%: 0603) WR12 WR08 WR06 WR04 Dimensions : Millimetres Size \\ Nr. of digit of code\\tolerance ±5% ±1% 1206 (3216) 3-digits marking 4-digits marking 0805 (2012) 3-digits marking 4-digits marking 0603 (1608) 3-digits marking 3-digits marking 0402(1005) NO MARKING 3-digits marking (±5% : 1206 & 0805 & 0603) Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance value. Nominal resistance Description 1. E-24 series As 0603 WR06X ±5%. 2. E-96 series The 1st two digit codes are referring to the CODE on the table, the 3rd code is the index of resistance value : EX : 17.8Ω=25X, 178Ω=25A, 1K78 =25B 17K8=25C, 178K=25D, 1M78=25E 3. Remark There is no marking for the items are not under E-24 and E-96 series CODE R_value CODE R_value CODE R_Value CODE R_val- ue CODE R_val- ue CODE R_val- ue CODE R_val- ue CODE R_val- ue 01 100 13 133 25 178 37 237 49 316 61 422 73 562 85 750 02 102 14 137 26 182 38 243 50 324 62 432 74 576 86 768 03 105 15 140 27 187 39 249 51 332 63 442 75 590 87 787

Page <3> V1.007/05/25 Thick Film General Purpose Chip Resistors WR12, WR08, WR06, WR04 Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro CODE R_value CODE R_value CODE R_Value CODE R_val- ue CODE R_val- ue CODE R_val- ue CODE R_val- ue CODE R_val- ue 04 107 16 143 28 191 40 255 52 340 64 453 76 604 88 806 05 110 17 147 29 196 41 261 53 348 65 464 77 619 89 825 06 113 18 150 30 200 42 267 54 357 66 475 78 634 90 845 07 115 19 154 31 205 43 274 55 365 67 487 79 649 91 866 08 118 20 158 32 210 44 280 56 374 68 499 80 665 92 887 09 121 21 162 33 215 45 287 57 383 69 511 81 681 93 909 10 124 22 165 34 221 46 294 58 392 70 523 82 698 94 931 11 127 23 169 35 226 47 301 59 402 71 536 83 715 95 953 12 130 24 174 36 232 48 309 60 412 72 549 84 732 96 976 4-digits marking (±1% : 1206/0805) Each resistor is marked with a four digits code on the protective coating to designate the nominal resistance value. Example Resistance 10Ω 12Ω 100Ω 6800Ω 47000Ω 3-digits marking (1206 & 0805 & 0603 ±5%) 100 120 101 682 473 4-digits marking 10R0 12R0 1000 6801 4702 Functional Description Product characterization Standard values of nominal resistance are taken from the E24 series for resistors with a tolerance of ±5%, and 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 Max. dissipation in percentage of rated power as a function of the ambient temperature for WR12, WR08, WR06 & WR04 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.

Page <4> V1.007/05/25 Thick Film General Purpose Chip Resistors WR12, WR08, WR06, WR04 Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro Storage and Handling Conditions 1. Products are recommended to be used up within two years since operation date as ensured shelf life. Check solderability in case shelf life extension is needed. 2. To store products with following condition: Temperature : 5°C to 40°C Humidity : 20% to 70% relative humidity 3. Caution: a. Don’t store products in a corrosive environment such as sulfide, chloride gas, or acid. It may cause oxdization of electrode, which easily be resulted in poor soldering b. To store products on the shelf and avoid exposure to moisture. c. Don’t expose products to excessive shock, vibration, direct sunlight and so on Soldering Condition follows J-STD-020D 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 Figure below. Infrared soldering profile for Chip Resistors For SnAgCu series solder pase

480 Sec max to Peak

60–120 Sec 60–150 Sec 30 sec min Time 260 245 217 150 200 Temp. (DegC) max. ramp up rate = 3°C/s max. ramp down rate = 6°C/s WR12 X 472_ J T L Size code WR12 : 1206 WR08 : 0805 WR06 : 0603 WR04: 0402 Type code X : Jumper ±5%, 1Ω ~ 10MΩ ±1%, 10Ω ~ 1MΩ W : ±1%, < 10Ω; >1MΩ Resistance code ±5%, E24: 2 significant digits followed by no. of zeros and a blank 4.7Ω = 4R7_ 10Ω = 100_ 220Ω = 221_ Jumper = 000_ ("_" means a blank) ±1%, E24+E96: 3 significant digits followed by no. of zeros 102Ω =1020 37.4KΩ =3742 Tolerance F : ±1% J : ±5% P : Jumper Packaging code T : 7" Reeled taping Q : 10" Reeled taping G : 13" Reeled taping H : 13" reel 50Kpcs only for 0402 B : Bulk D : 7" reel 20Kpcs only for 0402 A : 7" reel 15Kpcs only for 0402 Termination code L = Sn base (lead free) Catalogue Numbers The resistors have a catalogue number starting with

Page <5> V1.007/05/25 Thick Film General Purpose Chip Resistors WR12, WR08, WR06, WR04 Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro WR12, WR08, WR06: 1. Reeled tape packaging : 8mm width paper taping 5,000pcs per 7" reel, 10kpcs per 10" reel, 20kpcs per 13" reel. 2. Bulk packaging : 5,000pcs per poly-bag WR04: 1. Reeled tape packaging : 8mm width paper taping 10,000pcs per 7" reel, 20,000pcs per 10" reel. 70,000pcs per 13" reel. 2. Bulk packaging : 10,000pcs per poly-bag 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 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: 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. Test Procedure / Test Method Requirement Resistor 0Ω 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. R2 - R2 R1(t2 - t1) R1 : Resistance at reference temperature (20°C +5°C / -1 °C) R2 : Resistance at test temperature (-55°C or +155°C) Within the specified tolerance Refer to "QUICK REFERENCE DATA" <50mΩ Resistance to soldering heat(R.S.H) JISC5201- 1:1998 Clause 4.18 Un-mounted chips completely immersed for 10 ±1 second in a SAC solder bath at 260°C ±5°C ±5%:∆R/Rmax. ±(1%+0.05Ω) no visible damage <50mΩ Solderability JISC5201-1: 1998 Clause 4.17 Un-mounted chips completely immersed for 10 ±1second in a SAC solder bath at 235°C ±5°C 95% coverage min., good tinning and no visible damage Temperature cycling JISC5201-1: 1998 Clause 4.19 30 minutes at -55°C ±3°C, 2-3 minutes at 20 °C +5°C -1°C, 30 minutes at +155°C ±3°C, 2-3 minutes at 20°C +5°C -1°C, total 5 continu- ous cycles No visible damage <50mΩ

Page <6> V1.007/05/25 Thick Film General Purpose Chip Resistors WR12, WR08, WR06, WR04 Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro Test Procedure / Test Method Requirement Resistor 0Ω High Temperature Exposure MIL-STD-202 method 108 1,000 +48/-0 hours; without load in a temperature chamber controlled 155 ±3°C ±5%:∆R/Rmax.±(2%+0.1Ω) ±1%:∆R/Rmax.±(1%+0.1Ω) No visible damage <50mΩ Bending strength JISC5201-1: 1998 Clause 4.33 Resistors mounted on a 90mm glass epoxy resin PCB(FR4), bending once 3mm for 10sec, 5mm for MCWR04 ±5%:∆R/Rmax.±(1%+0.05Ω) ±1%:∆R/Rmax.±(1%+0.05Ω) No visual damaged <50mΩ Adhesion JISC5201-1: 1998 Clause 4.32 Pressurizing force: 5N, Test time: 10 ±1sec. No remarkable damage or removal of the terminations Short Time Overload (STOL) JISC5201-1: 1998 Clause 4.13 2.5 times RCWV or max. overload voltage, for 5seconds ±5%:∆R/Rmax.±(2%+0.05Ω) ±1%:∆R/Rmax.±(1%+0.05Ω) No visual damaged <50mΩ Load life in Humidity JISC5201-1: 1998 Clause 4.24 1000 +48/-0 hours, loaded with RCWV or Vmax in humidity chamber controller at 40°C± 2°C and 90 to 95% relative humid- ity, 1.5hours on and 0.5 hours off ±5%:∆R/Rmax.±(2%+0.1Ω) ±1%:∆R/Rmax.±(1%+0.1Ω) No visual damaged <50mΩ Load life (endurance) JISC5201-1: 1998 Clause 4.25 1000 +48/-0 hours, loaded with RCWV or Vmax in chamber controller 70±2ºC, 1.5 hours on and 0.5 hours off ±5%:∆R/Rmax.±(3%+0.1Ω) ±1%:∆R/Rmax.±(1%+0.1Ω) No visual damaged <50mΩ Insulation Resistance JISC5201-1: 1998 Clause 4.6 Apply the maximum overload voltage (DC) for 1minute R 10GΩ Dielectric Withstand Voltage JISC5201-1: 1998 Clause 4.7 Apply the maximum overload voltage (AC) for 1 minute No breakdown or flashover

Page <7> V1.007/05/25 Thick Film General Purpose Chip Resistors WR12, WR08, WR06, WR04 Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro Test Condition For Jumper (0Ω) Item WR12 WR08 WR06 WR04 Power Rating at 70°C 1/4W 1/8W 1/10W 1/16W Resistance MAX. 50mΩ Rated Current 2A 1.5A 1A 1A Peak Current 5A 3.5A 3A 2A Operating Temperature -55°C to +155° C Dimensions : Millimetres Packaging Paper Tape specifications Series No. A B W F E WR12 3.6 ±0.2 2 ±0.2 Series No. P1 P0 D T WR12/WR08 4 ±0.1 4 ±0.1 Ø1.5 +0.1 -0.0 Max. 1 WR06 0.65 ±0.05 WR04 2 ±0.1 0.4 ±0.05

Page <8> V1.007/05/25 Thick Film General Purpose Chip Resistors WR12, WR08, WR06, WR04 Newark.com/multicomp-pro Farnell.com/multicomp-pro sg.element14.com/b/multicomp-pro 7" Reel dimensions: Symbol A B C D 7" reel Ø178 ±2 Ø60 ±1 13 ±0.2 9 ±0.5 10" reel Ø254 ±2 Ø100 ±1 13 ±0.2 9 ±0.5 13" reel Ø330 ±2 Ø100 ±1 13 ±0.2 9 ±0.5 Important Notice : This data sheet and its contents (the “Information”) belong to the members of the AVNET group of companies (the “Group”) or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its negligence. Multicomp Pro is the registered trademark of Premier Farnell Limited 2019. Dimensions : Millimetres