WF04G226JTL [WALSIN]
Higher component and equipment reliability;型号: | WF04G226JTL |
厂家: | Walsin Technology |
描述: | Higher component and equipment reliability |
文件: | 总7页 (文件大小:261K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Approval sheet
WF12G, WF08G, WF06G, WF04G
±1%, ±5%, 11MΩ~100MΩ
High ohm chip resistors
Size 1206, 0805, 0603, 0402
*Contents in this sheet are subject to change without prior notice
Page 1 of 7
ASC_WFxxG_V13
Feb - 2015
Approval sheet
FEATURE
1. Small size and light weight
2. High reliability and stability
3. Reduced size of final equipment
4. Higher component and equipment reliability
5. RoHS compliant and lead free products.
APPLICATION
•
•
•
•
•
Power supply
PDA
Digital meter
Computer
Palmtop computers
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 Tin (lead free) alloy.
Fig 1. Construction of Chip-R
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ASC_WFxxG_V13
Feb - 2015
Approval sheet
QUICK REFERENCE DATA
Item
Series No.
General Specification
WF12G
WF08G
0805 ( 2125 )
WF06G
WF04G
Size code
1206 ( 3216 )
0603 ( 1608 )
0402 ( 1005 )
Resistance Tolerance
±1%, ±5%
10MΩ < R ≤ 30MΩ
Resistance Range
10MΩ < R ≤ 100MΩ
( E24 series)
TCR (ppm/°C)
≤ ± 200 ppm/°C
1/8 W
≤ ± 300 ppm/°C
1/16W
1/4 W
200V
1/10 W
50V
Max. dissipation at Tamb=70°C
Max. Operation Voltage (DC or RMS)
Climatic category (IEC 60068)
150V
50V
55/155/56
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 = RatedPower ×Resistance Value or Max. RCWV listed above, whichever is lower.
DIMENSIONS(unit : mm)
WF12G
WF08G
WF06G
WF04G
series
L
3.10 ± 0.15
1.60 ± 0.15
0.50 ±0.25
0.50 ± 0.25
0.55 ± 0.10
2.00 ± 0.10
1.25 ± 0.10
0.40 ± 0.20
0.40 ± 0.20
0.50 ± 0.15
1.60 ± 0.10
0.80 ± 0.10
0.30 ± 0.10
0.30 ± 0.15
0.45 ± 0.15
1.00 ± 0.05
0.50 ± 0.05
0.20 ± 0.10
0.25 ± 0.10
0.35 ± 0.05
W
Tt
Tb
T
MARKING
3-digits marking
Each resistor is marked with a three digits code on the protective coating to designate the nominal resistance
value.
Example
306 = 30 MΩ
186 = 18 MΩ
Page 3 of 7
ASC_WFxxG_V13
Feb - 2015
Approval sheet
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal resistance are taken from the E96 & E24 series for resistors with a tolerance of
±1%, ±5%. 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
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 below. WF04G is not guaranteed with wave soldering process due to its 0402 size.
Page 4 of 7
ASC_WFxxG_V13
Feb - 2015
Approval sheet
CATALOGUE NUMBERS
The resistors have a catalogue number starting with :
WF06
G
226_
J
T
L
Size code
Type code
Resistance code
Tolerance Packaging code
Termination code
WF12 : 1206
WF08 : 0805
WF06 : 0603
WF04 : 0402
T
B
: 7” Reeled taping
: Bulk
5% E24: 2 significant digits
followed by no. of zeros
and a blank
L
= Sn base (lead
free)
G : High ohmic >10MΩ
1206 size=0.25W
J : ±5%
F : ±1%
0805 size=0.125W
0603 size=0.10W
11MΩ
22MΩ
30MΩ
=116_
=226_
=306_
(“_” means a blank)
1%, E24+E96: 3 significant
digits followed by no. of
zeros
100Ω
=1000
=3742
37.4KΩ
1.
2.
Reeled tape packaging : 8mm width paper taping 5000pcs per 7” reel for 1206, 0805, 0603 ( 10,000pcs for 0402 )
Bulk packaging : 5000pcs per polybag
TEST AND REQUIREMENTS(JIS C 5201-1 : 1998)
TEST
PROCEDURE
Natural resistance change per change in degree centigrade.
R2 − R
REQUIREMENT
Temperature
Coefficient of
Resistance (T.C.R)
Refer to quick reference data for
T.C.R specification.
×106 (ppm/°C)
1
R
(
t2 − t1
)
Clause 4.8
1
R1 : Resistance at reference temperature
R2 : Resistance at test temperature
t1 : 20°C+5°C-1°C
t2 : Test temperature.
Short time overload Permanent resistance change after a 5 second application of a No visible damage.
(S.T.O.L)
voltage 2.5xUR or max. Overload voltage, whichever is less.
∆R/R max. J:≦ ±(2%+0.1Ω)
F:≦ ±(1%+0.05Ω)
Clause 4.13
Un-mounted chips completely immersed for 2±0.5 second in a SAC
solder bath at 235℃±5℃.
good tinning (>95% covered)
no visible damage
Solderability
Clause 4.17
Un-mounted chips completely immersed for 10±1second in a SAC
solder bath at 260℃±5ºC
No visible damage.
Resistance to
soldering
heat(R.S.H)
∆R/R max. J:≦ ±(1%+0.1Ω)
F:≦ ±(0.5%+0.05Ω)
Clause 4.18
Page 5 of 7
ASC_WFxxG_V13
Feb - 2015
Approval sheet
TEST
PROCEDURE
1. 30 minutes at -55°C±3°C,
REQUIREMENT
No visible damage.
Temperature cycling
∆R/R max. J≦ ±(1%+0.1Ω)
F≦ ±(0.5%+0.05Ω)
Clause 4.19
2. 2~3 minutes at 20°C+5°C-1°C,
3. 30 minutes at +155°±3°C,
4. 2~3 minutes at 20°C+5°C-1°C,
Total 5 continuous cycles.
Load life
1000 +48/-0 hours, loaded with RCWV or Vmax in chamber No visible damage.
(endurance)
controller 70±2ºC, 1.5 hours on and 0.5 hours off
∆R/R max. J≦ ±(3%+0.1Ω)
F≦ ±(1%+0.05Ω)
Clause 4.25
Load life in Humidity 1000 +48/-0 hours, loaded with RCWV or Vmax in humidity chamber No visible damage.
controller at 40°C±2°C and 90~95% relative humidity, 1.5hours on
and 0.5 hours off
Clause 4.24
∆R/R max. J≦ ±(3%+0.1Ω)
F≦ ±(1%+0.05Ω)
Bending strength
Clause 4.33
Adhesion
Resistors mounted on a 90mm glass epoxy resin PCB(FR4);
bending : 3 mm, once for 10 seconds
∆R/R max. ±(1%+0.10Ω)
No remarkable damage or
removal of the terminations.
Pressurizing force: 5N, Test time: 10±1sec.
Clause 4.32
Insulation Resistance
Apply the maximum overload voltage (DC) for 1minute
Apply the maximum overload voltage (AC) for 1 minute
R≧10GΩ
Clause 4.6
Dielectric Withstand
Voltage
No breakdown or flashover
Clause 4.7
Page 6 of 7
ASC_WFxxG_V13
Feb - 2015
Approval sheet
PACKAGING
Paper Tape specifications (unit :mm)
Series No.
WF12G
A
B
W
F
E
3.60±0.20
2.40±0.20
1.90±0.20
1.20±0.10
2.00±0.20
1.65±0.20
1.10±0.20
0.70±0.10
8.00±0.30
8.00±0.30
8.00±0.30
8.00±0.30
3.50±0.2
3.50±0.2
3.50±0.2
3.50±0.2
1.75±0.10
1.75±0.10
1.75±0.10
1.75±0.10
WF08G
WF06G
WF04G
Series No.
P1
P0
T
ΦD
WF12G
WF08G
WF06G
WF04G
4.00±0.10
4.00±0.10
4.00±0.10
2.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
4.00±0.10
Max. 1.0
+0.1
−0.0
Φ1.50
0.65±0.1
0.40±0.05
Reel dimensions
Symbol
(unit : mm)
A
B
C
D
13.0±0.2
9.0±0.5
Φ178.0±2.0
Φ60.0±1.0
Taping quantity
Chip resistors 5,000 pcs/reel for 1206, 0805, 0603 ( 10,000 pcs/reel for 0402 )
-
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ASC_WFxxG_V13
Feb - 2015
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