概述
规格参数
数据手册T48KU 概述
High Voltage Precision Thick Film Resistors 高压精密厚膜电阻器 固定电阻器
T48KU 规格参数
| 生命周期： | Active | 包装说明： | , |
| Reach Compliance Code： | unknown | 风险等级： | 5.62 |
| 其他特性： | PRECISION | 安装特点： | CHASSIS MOUNT |
| 最高工作温度： | 150 °C | 最低工作温度： | -55 °C |
| 封装形状： | TUBULAR PACKAGE | 包装方法： | BULK |
| 额定温度： | 20 °C | 电阻器类型： | FIXED RESISTOR |
| 子类别： | Fixed Resistors | 表面贴装： | NO |
| 技术： | METAL GLAZE/THICK FILM | 端子形状： | BINDING POST; WIRE |
| 工作电压： | 50000 V | Base Number Matches： | 1 |
T48KU 数据手册
通过下载T48KU数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载High Voltage Precision
Thick Film Resistors
Welwyn Components
T Series
• Working voltage up to 100kV
Resistances up to 50G
•
TCR down to 25ppm
•
Termination variants
•
Sets of resistors with matched characteristics
•
Electrical Data
T43
T44
3.5
T48
10
Notes
Power rating at 20°C
Resistance range
watts
ohms
volts
1.5
1K to 10G
4K
1K to 50G
14K
1K to 50G
50K
Limiting element voltage
In air
8K
28K
100K
In oil
TCR
ppm/°C
%
25, 50, 100
1, 2, 5
Values > 1G: TCR is 250ppm/°C
Closer tolerances over restricted range
Any value to special order
Resistance tolerance
Values
E24 preferred values
27
Thermal impedance
Ambient temperature range
°C/watt
°C
31
13
-55 to 150
Physical Data
Dimensions (mm) & Weight (g)
PCB
Min
mounting
centres
Bend
Type
L max
25.4
D max
8.4
8.4
8.4
8.5
8.5
8.5
8.5
8.5
8.5
f min
32.0
32.0
32.0
32.0
32.0
32.0
d nom
0.8
Radius Wt. nom
T44D
T43D
31.8
57.2
1.2
1.2
1.2
3.1
5.6
d
D
T44D
50.8
0.8
L
f
T48D
150.0
30.2
0.8
156.4
18.5
3.9
T43KU
T44KU
T48KU
T43TU
T44TU
T48TU
0.8
T44TU
L
T44KU
L
53.2
0.8
7.4
152.2
32.6
0.8
19.3
5.8
55.6
8.2
154.8
20.2
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
© 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
Issue B · 03.02
193
High Voltage Precision
Thick Film Resistors
T Series
Welwyn Components
Solderability:
The terminations meet the requirements
of IEC 115-1, Clause 4.17.3.2.
Construction
A ruthenium oxide based resistive film is fired onto the
surface of a high quality former. Turned brass end caps are
fitted. A Helical cut is made into the film to adjust its resistive
value and finally a protective sleeve is fitted to provide
mechanical protection and electrical insulation. Resistors for
use in oil or SF6, can be supplied with a lacquer protection
instead of the sleeve.
Screw Terminations: Styles TU and KU.
Material:
Turned brass.
Screw Thread:
All caps are tapped UNF – 10 x 4.2 deep.
UNF – 10 is 32 TPI, 60°C thread angle,
4.72 0.07 mm outside diameter, 3.83
mm core diameter.
Terminations
Coupling Stud:
All KU & TU resistors are supplied with 8
mm long screwed brass studs.
Three styles of termination are available to permit resistors to
be screwed together in a series chain, with the end members
having axial wires for soldering.
Wire Terminations: Styles D and KU.
Non standard terminations available upon
request.
Marking
Type reference, resistance value, tolerance and date code are
legend marked. The resistance value conforms to IEC 62.
Solvent Resistance
Material:
Strength:
Solder coated copper wire.
The lacquer and the protective sleeve provide excellent
resistance to all normal industrial cleaning solvents suitable for
printed circuits.
The terminations meet the requirements
of IEC 68.2.21
Performance Data
Maximum
≤ IG:3, >IG:5
0.3
Typical
0.3
Load at rated power: 1000 hours at 20°C
Shelf life: 12 months at room temperature
Derating from rated power at 20°C
Noise (in a decade of frequency)
∆R%
∆R%
0.1
Zero at 150°C
µV/V
<2.5
<1
Voltage coefficient of resistance
ppm/V
When resistors are required to be potted, the preferred
encapsulant is a silicone compound.
Matched Sets
Matched sets can be supplied for use as precision voltage
dividers. These may be screwed together to form sticks and,
by selecting the KU type of termination, a wire connection
can be provided at each end of the stick.
For voltage dividers with a low resistance section below the
minimum available value of 1kΩ, it is normal practice to use a
Welwyn resistor, RC Series, obtainable down to 1 ohm.
Enquiries are welcomed for special resistors and sets when
resistor length, operating voltage or resistance value are
outside the catalogued range.
Oil Immersion
For some high voltage applications it is required to immerse
the components in oil or gas to reduce the effects of corona
and surface tracking. A special lacquer protected version of
the resistor is available, suitable for immersion in transformer
oil or SF6.
Application Notes
Due to the high voltage which can appear between the end
cap and any adjacent metal part, resistors should be mounted
at an adequate distance from other conductors.
Packaging
Resistors are supplied packed in boxes.
An appropriate number of resistors may be screwed together
as a stick to provide an assembly which will be capable to
withstanding any desired voltage, providing no individual
resistor is subject to a greater stress or power dissipation than
is recommended in this data sheet, and that appropriate anti-
corona devices are fitted.
Standard Quantities Per Box
All Types
10 or 20 per box
The axial termination should not be bent closer than twice
the diameter of the terminal wire from the body of the
resistor.
© 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
Issue B · 03.02
194
T48KU 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| T48SR | DELTA | Fixed frequency operation | 获取价格 |
|
| T48SR05005 | DELTA | High efficiency : 86% @ 5V/5A | 获取价格 |
|
| T48SR05005NNFA | DELTA | Delphi Series T48SR, 1/32 Brick Family DC/DC Power Modules: | 获取价格 |
|
| T48SR05005NRFA | DELTA | Delphi Series T48SR, 1/32 Brick Family DC/DC Power Modules: 36~75V in, 5V/5A out, 25W | 获取价格 |
|
| T48SR05005PNFA | DELTA | Delphi Series T48SR, 1/32 Brick Family DC/DC Power Modules: 36~75V in, 5V/5A out, 25W | 获取价格 |
|
| T48SR05005PRFA | DELTA | Delphi Series T48SR, 1/32 Brick Family DC/DC Power Modules: 36~75V in, 5V/5A out, 25W | 获取价格 |
|
| T48SR3R307NNFA | DELTA | Delphi Series T48SR, 1/32 Brick Family DC/DC Power Modules: 36~75V in, 5V/5A out, 25W | 获取价格 |
|
| T48SR3R307NRFA | DELTA | Delphi Series T48SR, 1/32 Brick Family DC/DC Power Modules: | 获取价格 |
|
| T48SR3R307PNFA | DELTA | Delphi Series T48SR, 1/32 Brick Family DC/DC Power Modules: | 获取价格 |
|
| T48SR3R307PRFA | DELTA | Delphi Series T48SR, 1/32 Brick Family DC/DC Power Modules: | 获取价格 |
|
T48KU 相关文章
Bourns 密封通孔金属陶瓷微调电位计产品选型手册(英文版)
- 2024-09-20
- 6
Bourns 精密环境传感器产品选型手册(英文版)
- 2024-09-20
- 9
Bourns POWrTher 负温度系数(NTC)热敏电阻手册 (英文版)
- 2024-09-20
- 8
Bourns GMOV 混合过压保护组件产品选型手册(英文版)
- 2024-09-20
- 6
