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Walsin Technology Corporation
WR12X / WR08X / WR06X 1%, 5% General purpose chip resistors Size 1206 / 0805 / 0603
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DataShee
Customer : Approval No : Issue Date : Customer Approval :
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WR12X / WR08X / WR06X
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Jul.-2004
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Walsin Technology Corporation
FEATURE
1. High reliability and stability 2. Reduced size of final equipment 3. Lower assembly costs 4. Higher component and equipment reliability 5. Lead free products upon customer requested
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 within tolerance by laser cutting of this resistive layer.
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The resistive layer is covered with a protective coat. Finally, the two external end terminations are added. For .com ease of soldering the outer layer of these end terminations is a Lead-tin or Tin (lead free) alloy. DataShee
Fig 1. Consctruction of a Chip-R
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WR12X / WR08X / WR06X
Version 17
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Walsin Technology Corporation
QUICK REFERENCE DATA
Item
Series No. Size code Resistance Tolerance Resistance Range TCR (ppm/C) 10 10 10 Max. dissipation at Tamb=70C Max. Operation Voltage (DC or RMS) Max. Overload Voltage (DC or RMS) Climatic category (IEC 60068) Note : 1. 2. This is the maximum voltage that may be continuously supplied to the resistor element, see "IEC publication 60115-8" Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by 1/4 W 200V 400V 55/155/56 5% Tolerance 1% Tolerance 200 ppm/C 100 ppm/C -300~+500 ppm/C 1/8 W 150V 300V 55/155/56 1/10 W 50V 100V 55/155/56 WR12X 1206 (3216)
General Specification
WR08X 0805 (2012) 1% (E96 series), 5% (E24 series) 1 ~ 10M (5% tolerance), 10 ~ 1M (1% tolerance), Jumper WR06X 0603 (1608)
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3. 4.
.com RCWV = Rated Power x Resistance Value or Max. RCWV listed above, whichever is lower.
The resistance range 1~10 and 1M ~10M with 1% tolerance please refer to WR12W / WR08W / WR06W series. The resistance of Jumper is defined <0.05.
DataShee
DIMENSIONS
WR12X L W T Tb Tt 3.10 0.10 1.60 0.10 0.60 0.15 0.45 0.20 0.50 0.20 WR08X 2.00 0.10 1.25 0.10 0.50 0.15 0.40 0.20 0.40 0.20 WR06X 1.60 0.10 0.80 0.10 0.45 0.15 0.30 0.20 0.30 0.10
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WR12X / WR08X / WR06X
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Walsin Technology Corporation
MARKING
Size \ Nr. Of digit of code\tolerance 1206 (3216) 0805 (2012) 0603 (1608) 5% 3-digits marking 3-digits marking 3-digits marking 1% 4-digits marking 4-digits marking 3-digits marking
3-digits marking5% : 1206 & 0805 & 0603
Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance value. For values up to 91 the R is used as a decimal point. For values of 100 or greater the first 3 digits apply to the resistance value and fourth indicate the number of zeros to follow.(EX. Jumper(0) can be 0 or 000)
3-digits marking1% : 0603
Nominal resistance 1.E-24 series 2.E-96 series As 0603 WR06X 5%. The 1st two digit codes are referring to the CODE on the table, the 3rd code is the index of resistance value : Y=10-2X=10-1A=100B=101C=102D=103E=104F=105 EX : 17.8=25X178=25A1K78 =25B 17K8=25C 178K=25D 1M78=25E 3. Remark
CODE R_value CODE R_value
Description
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_value CODE R_value CODE R_value
01
100 102 105 107 110 113 115 118 121 124 127 130
13 14 15 16 17 18 19 20 21 22 23 24
133 137 140 143 147 150 154 158 162 165 169 174
25 26 27 28 29 30 31 32 33 34 35 36
178 182 187 191 196 200 205 210 215 221 226 232
37
237
49
316
61 62 63 64 65 66 67 68 69 70 71 72
422 432 442 453 464 475 487 499 511 523 536 549
73 74 75 76 77 78 79 80 81 82 83 84
562 576 590 604 619 634 649 665 681 698 715 732
85 86 87 88 89 90 91 92 93 94 95 96
750 768 787 806 825 845 866 887 909 931 953 976
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02 03 04 05 06 07 08 09 10 11 12
38 50 243 .com 324 39 40 41 42 43 44 45 46 47 48 249 255 261 267 274 280 287 294 301 309 51 52 53 54 55 56 57 58 59 60 332 340 348 357 365 374 383 392 402 412
DataShee
4-digits marking1% : 1206/0805
Each resistor is marked with a four digits code on the protective coating to designate the nominal resistance value. For values of <97.6 the R is used as a decimal point. For values of 100 or greater the first 3 digits are significant, the fourth indicates the number of zeros to follow.
Example
RESISTANCE 3-digits marking1206 & 0805 & 0603 5% 4-digits marking 10 100 10R0 12 120 12R0 100 101 1000 6800 682 6801 0 0 or 000 ----
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WR12X / WR08X / WR06X
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Walsin Technology Corporation
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; see Fig.2
Figure 2. Maximum dissipation in percentage of rated power As a function of the ambient temperature
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MOUNTING
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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 one minute. 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 230C during 2 seconds. The test condition for no leaching is 260C for 60 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
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WR12X / WR08X / WR06X
Version 17
Jul.-2004
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Walsin Technology Corporation
CATALOGUE NUMBERS
The resistors have a catalogue number starting with .
WR12
Size code WR12 : 1206 WR08 : 0805 WR06 : 0603
X
Type code X : Normal
472_
Resistance code E24 : 2 significant digits followed by no. of zeros and a blank 4.7 10 220 Jumper =4R7_ =100_ =221_ =000_
J
Tolerance F : 1% J : 5% P : Jumper
T
Packaging code T : 7" Reeled taping
_
Termination code _ = SnPb base ("_" means a blank) L = Sn base (lead free)
Q : 10" Reeled taping G : 13" Reeled taping B : Bulk
("_" means a blank) E96 : 3 significant digits followed by no. of zeros 102 37.4K =1020 =3742
1. 2.
Reeled tape packaging Bulk packaging
: 8mm width paper taping 5000pcs per 7" reel, 10kpcs per 10" reel, 20kpcs per 13" reel. : 5000pcs per polybag
TEST AND REQUIREMENTS
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Essentially all tests are carried out according to the schedule of IEC publication 115-8, category .com LCT/UCT/56(rated temperature range : Lower Category Temperature, Upper Category Temperature; damp DataShee 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 CONDITION FOR JUMPER (0 )
Item Power Rating At 70C Resistance Rated Current Peak Current Operating Temperature 2A 5A WR12X 1/4W WR08X 1/8W MAX.50m 1.5A 3.5A -55~155C 1A 3A WR06X 1/10W
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WR12X / WR08X / WR06X
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Walsin Technology Corporation
TEST DC resistance
PROCEDURE / TEST METHOD JIS C 5202 5.1 / IEC 60115-1 4.5 DC resistance values measured at the test voltages specified below : <10@0.1V, <10K@3V, <10M@30V <100@0.3V, <100K@10V, <1K@1.0V, <1M@25V,
REQUIREMENT Resistor Within the specified tolerance 0 <50m
Temperature Coefficient of Resistance
JIS C 5202 5.2 / IEC 60115-1 4.8.4.2
Within the specified TCR
N/a
R2 - R1 x 106 (ppm/C) R1 (t2 - t1 )
R1 : Resistance at reference temperature R2 : Resistance at test temperature t1 : room temperature; t2 : LCT or UCT
Short Time Overload
JIS C 5202 5.5 / IEC 60115-1 4.13 Permanent resistance change after a 5sec application of a voltage 2.5xUR or max. overload voltage, whichever is less. JIS C 5202 6.4 / IEC 60115-1 4.18 Unmounted chip with a solder bath, 270C5C, 101 sec JIS C 5202 6.5 / IEC 60115-1 4.17 Termination SnPb base : Unmounted chips completely .com immersed for 20.5 sec. in a solder bath at 2305C Termination Sn base (lead free) : Unmounted chip completely immersed in a lead free solder bath, 245C5C, 31 sec
R/R max. (2%+0.10)
<50m
Resistance to Solder Heat Solderability
R/R max. (1%+0.05)
<50m
95% coverage min., good tinning and no visible damage
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DataShee
Leaching Test Temperature Cycling Damp Heat (Load life in humidity) Load Life (Endurance) Bending and Terminal Strength
JIS C 5202 6.4 / IEC 60115-1 4.18 Unmounted chip with a solder bath, 260C5C, 601 sec JIS C 5202 7.4 / IEC 60115-1 4.19 30min at LCT, 30min at UCT, 5 cycles JIS C 5202 7.9
Ditto R/R max. (1%+0.05) < 50m < 50m
10R<1M : R/R max. 1000+48/-0 hours; 1.5hours ON, 0.5hours OFF at RCWV (3%+0.10) in a humidity chamber controlled 402C, 90~95% RH R<10, R1M : R/R max. (5%+0.10) JIS C 5202 7.10 / IEC 60115-1 4.25.1 1000+48/-0 hours; loaded with Pn or Vmax; 1.5 hours ON, 0.5 hours OFF JIS C 5202 6.1.4 /IEC 60115-1 4.33 No visual damaged, Ditto
Ditto
< 50m
Resistors mounted on a 90mm glass epoxy resin R/R max. (1%+0.05) PCB(FR4), bending once 3mm for 10sec Pulling test : >500 grams
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WR12X / WR08X / WR06X
Version 17
Jul.-2004
DataSheet 4 U .com
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Walsin Technology Corporation
PACKAGING
Paper Tape specifications (unit :mm)
Series No. WR12X WR08X WR06X
A 3.600.20 2.400.20 1.900.20
B 2.000.20 1.650.20 1.100.20
W 8.000.30 8.000.30 8.000.30
F 3.500.20 3.500.20 3.500.20
E 1.750.10 1.750.10 1.750.10
Series No.
P1 4.000.10 4.000.10
P0
D
T Max. 1.0 0.650.05
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WR12X / WR08X WR06X
.com .50 +0..1 4.000.10 1 -0 0
4.000.10
1.50 +0..1 -0 0
7" Reel dimensions
Symbol (unit : mm)
A 178.02.0
B 60.01.0
C 13.00.2
D 9.00.5
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WR12X / WR08X / WR06X
Version 17
Jul.-2004
DataSheet 4 U .com

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