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PR4-470RBI

产品描述金属膜电阻器 - 透孔
产品类别无源元件    电阻器    薄膜电阻器    金属膜电阻器 - 透孔   
文件大小290KB,共3页
制造商Welwyn Components (TT Electronics)
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PR4-470RBI概述

金属膜电阻器 - 透孔

PR4-470RBI规格参数

参数名称属性值
厂商名称Welwyn Components (TT Electronics)
产品种类金属膜电阻器 - 透孔
系列PR
封装Ammo Pack
技术Metal Film
安装风格PCB Mount
工厂包装数量5000

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Resistors
Metal
Precision
Film Resistors
Precision Metal Film Resistors
PR series
PR
Low
series
Welwyn Components
cost precision resistors
Tolerances down to ±0.1%
Low cost precision resistors
Tolerances down to ±0.1%
TCR down to 15ppm/°C
TCR down to 15ppm/°C
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
PR4
Power rating at 70°C
Resistance range
Limiting element voltage
TCR (20°C to 70°C)
Resistance tolerance
Standard values
Thermal impedance
Ambient temperature range
°C/watt
°C
140
-55 to 155
watts
ohms
volts
ppm/°C
%
250
≤240K:
15, 25, 50
≤500K:
0.1, 0.25, 0.5, 1
0.25
100R – 1M
350
>240K: 25, 50
>500K: 0.25, 0.5, 1
112
0.5
PR5
E24, E96
Physical Data
Dimensions (mm) & Weight (g)
PC
mounting
centres
10.2
12.7
Min.
bend
radius
Wt. nom
d
Type
PR4
PR5
L Max
6.2
9.0
D Max
2.5
3.6
f min
21
19.6
d nom
0.6
0.8
0.6
1.2
0.3
0.5
D
L
f
Construction
The resistance element is a precisely controlled thin film of
metal alloy sputtered on to a high purity ceramic core,
protected by a moisture-resistant, high dielectric strength
coating applied so that terminations remain completely clear.
This permits a well defined body length (clean lead to clean
lead dimension L).
Terminations
Material
Strength
Solderability
Hot tin dipped copper wire
The terminations meet the requirements of
IEC 68.2.21
The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2
Marking
25ppm/°C resistors are colour coded with 5 bands. The other
grades have an additional 6th band indicating TCR which is
orange for 15ppm/°C and red for 50ppm/°C.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
General Note
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
TT Electronics 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.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
A subsidiary of
TT electronics plc
www.ttelectronics.com/resistors
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670
© TT Electronics plc
822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
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