參數(shù)資料
型號： MFP
廠商： TT Electronics / Welwyn
英文描述： Flameproof Power Metal Film Resistors
中文描述： 隔爆型功率金屬膜電阻
文件頁數(shù)： 1/2頁
文件大?。?/td> 402K
代理商： MFP
Flameproof Power
Metal Film Resistors
MFP Series
Smallest size for power rating
Resistance range 0.1 ohms to 1M ohms
Flameproof protection
MFP1
MFP2
Power rating at 70°C
watts
<1
: 0.7 >=1
: 1.0
0R1 – 1M
2
Resistance range
ohms
1R0 – 1M
Limiting element voltage
volts
350
TCR
ppm/°C
< 1
: 300 1
- 9.1
: 200
≥
10
: 50
100
Resistance tolerance
%
1, 2, 5
Standard values
E24 preferred
Thermal impedance
°C/watt
120
82
Ambient temperature range
°C
-55 to 155
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.
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
Electrical Data
Issue D · 03.06
A subsidiary of
TT electronics plc
Welwyn Components
143
Marking
Resistors are colour coded with 4 or 5 bands depending on
value and tolerance. IEC 62 colours are used.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
Flammability
The resistor coating will not burn or emit incandescent
particles under any condition of applied temperature or
power overload.
Construction
The resistance element is a precisely controlled thin film of
metal alloy on a high purity ceramic core, protected by a
cement coating applied so that terminations remain
completely clear. This permits a well defined body length
(clean lead to clean lead dimension L).
Terminations
Material
Solder-coated copper wire.
Strength
The terminations meet the requirements of
IEC 68.2.21
Solderability
The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2
Dimensions (mm) & Weight (g)
PCB
Min.
bend
radius
mounting
centres
Type
L Max
D Max
f min
d nom
Wt.nom
MFP1
6.2
2.5
21.0
0.6
10.2
0.6
0.3
MFP2
10.0
4.0
27.0
0.8
18.4
1.2
0.55
Physical Data
L
D
f
d
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