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WRM0102 参数 Datasheet PDF下载

WRM0102图片预览
型号: WRM0102
PDF下载: 下载PDF文件 查看货源
内容描述: 微型晶圆电阻电阻 [Mini Melf Resistors]
分类和应用:
文件页数/大小: 3 页 / 705 K
品牌: WELWYN [ WELWYN COMPONENTS LIMITED ]
 浏览型号WRM0102的Datasheet PDF文件第2页浏览型号WRM0102的Datasheet PDF文件第3页  
Mini Melf
Resistors
WRM Series
Welwyn Components
High reliability
Predictable pulse handling capability
Tolerances down to 0.1%
TCR down to 5 ppm/°C
Electrical Data
WRM 0102
Power rating at 70°C
Resistance range
Limiting element voltage
TCR
Resistance tolerance
Standard values
Thermal impedance
Ambient temperature range
Insulation resistance
k/W
°C
ohms
250
watts
ohms
volts
ppm/°C
%
0.2
R22 – 2M21
150
15, 25, 50
WRM 0204
0.25
R22 – 10M
200
5, 15, 25, 50
0.1, 0.25, 0.5, 1.0, 2, 5
E24 & E96
200
-55 to +125
>10
10
140
WRM 0207
0.4
R22 – 8M2
250
25, 50
Physical Data
Dimensions (mm) and weight (g)
Type
WRM 0102
WRM 0204
WRM 0207
L
max
2.2
3.6
6.0
D
max
1.1
1.4
2.2
D
1
max
1.1
1.4
2.2
K
min
0.35
0.5
1.1
Weight
0.01
0.02
0.08
L
D
1
L
1
K
D
Construction
A metal film is deposited onto a high dissipation ceramic
former to which tin plated teminating caps are fitted.
The resistor is adjusted to value by a helical cut in the film
and the body is protected by a lacquer coating.
Terminations
Material
Plated steel cap.
Solderability
The pure tin finish produces ageing free
contacts on which low melting solders can
be used. Dipped area shall be covered with
a smooth and bright solder coating after
3 seconds immersion at 215°C.
Marking
Resistance values are colour coded with 4 or 5 bands
depending on type.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuit boards.
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
A subsidiary of
TT electronics plc
Issue D · 09.06
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com