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WF20P1200FTL

Fixed Resistor, Metal Glaze/thick Film, 1W, 120ohm, 200V, 1% +/-Tol, 100ppm/Cel, Surface Mount, 2010, CHIP, ROHS COMPLIANT

器件类别:无源元件    电阻器   

厂商名称:Walsin_Technology_Corporation

器件标准:

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器件参数
参数名称
属性值
是否无铅
不含铅
是否Rohs认证
符合
包装说明
SMT, 2010
Reach Compliance Code
compli
ECCN代码
EAR99
其他特性
LASER TRIMMABLE, RATED AC VOLTAGE (V): 200
构造
Chi
JESD-609代码
e3
制造商序列号
WF12P
安装特点
SURFACE MOUNT
端子数量
2
最高工作温度
155 °C
最低工作温度
-55 °C
封装高度
0.6 mm
封装长度
5 mm
封装形状
RECTANGULAR PACKAGE
封装形式
SMT
封装宽度
2.5 mm
包装方法
TR, PLASTIC, 7 INCH
额定功率耗散 (P)
1 W
额定温度
70 °C
电阻
120 Ω
电阻器类型
FIXED RESISTOR
系列
WF20P
尺寸代码
2010
表面贴装
YES
技术
METAL GLAZE/THICK FILM
温度系数
100 ppm/°C
端子面层
Tin (Sn)
端子形状
WRAPAROUND
容差
1%
工作电压
200 V
Base Number Matches
1
文档预览
WF25P, WF20P, WF12P
±
1%,
±
5% 1
~ 1M
Thick Film High Power Chip Resistors
Size 2512 2W, 2010 1W, 1206 1/2W
Page 1 of 7
WF25P/20P/12P_V09
Mar.2011
FEATURE
1.
2.
3.
4.
5.
High power rating and compact size
High reliability and stability
Reduced size of final equipment
RoHS compliant and Lead free products
Flame Retardant
APPLICATION
Power supply
PDA
Digital meter
Computer
Automotives
Battery charger
DC-DC power converter
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 a Tin (lead free) alloy.
Fig 1. Construction of Chip-R
Page 2 of 7
WF25P/20P/12P_V09
Mar.2011
QUICK REFERENCE DATA
Item
Series No.
Size code
Resistance Tolerance
Resistance Range
TCR (ppm/°C)
Max. dissipation at T
amb
=70°C
Max. Operation Voltage (DC or RMS)
Max. Overload Voltage (DC or RMS)
Climatic category (IEC 60068)
Note :
1.
2.
General Specification
WF25P
2512 (6432)
WF20P
2010 (5025)
±1%, ±5%
0 ,1Ω ~ 1MΩ
±100
2W
300V
500V
1W
200V
400V
55/155/56
1/2 W
200V
400V
WF12P
1206 (3216)
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
RCWV
=
Rated Power
×
Resistance Value
or Max. RCWV listed above, whichever is lower.
3.
4.
5.
2W loading with total solder-pad and trace size of 300 mm
Lead free product is upon customer requested.
0
maximum resistance Rmax < 20mΩ and rated current < 4Amp
2
MECHANICAL DATA
Unit: mm
Symbol
L
W
T
WF25P
6.30
±
0.20
3.10
±
0.20
0.60
±
0.15
0.60
±
0.25
1.80
±
0.25
WF20P
5.00
±
0.20
2.50
±
0.20
0.60
±
0.10
0.60
±
0.25
0.60
±
0.25
WF12P
3.10
±
0.15
1.60
±
0.15
0.55
±
0.10
0.50
±
0.25
0.50
±
0.25
102
Tt
Tb
Page 3 of 7
WF25P/20P/12P_V09
Mar.2011
Recommended Solder Pad Dimensions
D
W
Type
WF25P
L
W
3.7
mm
D
2.45
mm
L
7.6
mm
MARKING
Each resistor is marked with a four-digit (WF25P;WF20P,WF12P
±1%)
and three-digit
(WF25P,WF20P,WF12P
±5%)
code on the protective coating to designate the nominal resistance value.
Example:
102 = 1kΩ
16R0 = 16Ω
16R0
102
FUNCTIONAL DESCRIPTION
Product characterization
Standard values of nominal resistance are taken from the E96 & E24 series for resistors with a tolerance of
±5%
&
±1%.
The values of the E24/E96 series are in accordance with “IEC publication 60063”.
Derating curve
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
Page 4 of 7
WF25P/20P/12P_V09
Mar.2011
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 3.
Fig 3. Infrared soldering profile for Chip Resistors
CATALOGUE NUMBERS
T
he resistors have a catalogue number starting with .
WF25
Size code
WF25
WF20
WF12
: 2512
: 2010
: 1206
P
Type code
P :Power
2512 size=2 watt
2010 size=1 watt
1206 size=0.5 watt
102
Resistance code
5% E24:
2 significant digits
followed by No. of zeros
e.g.:
3ohm
10ohm
1%
digits
=3R0
=100
J
Tolerance
J :
±5%
F :
±1%
P :
Jumper
T
Packaging
code
T : 7” Reel
taping
L
Termination
code
L
=
Sn base
(lead free)
56Kohm
=563
E24+E96:3
significant
followed by No. of zeros
100Ω
37.4KΩ
=1000
=3742
Tape packaging
WF12 : 8mm width paper taping 5,000pcs per reel.
WF25;WF20:
12mm width plastic taping 4,000pcs per reel.
Page 5 of 7
WF25P/20P/12P_V09
Mar.2011
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