MFR4-22KFI Datasheet, PDF (3/4 Pages) List of Unclassifed Manufacturers – Metal Film Resistors

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Welwyn Components
Performance Data - Type MFR 5
Load at commercial rating :
1000 hours at 70°C
Load at CECC rating :
1000 hours at 70°C
Shelf life :
12 months at room temperature
Derating
Short term overload
Climatic
Climatic category
Long term damp heat
Temperature rapid change
Resistance to solder heat
Vibration and bump
Noise. (in a decade of frequency)
Insulation resistance
Voltage proof
Pulse handling
∆R %
CECC 40101-019
Requirements
∆R %
2
∆R %
∆R %
∆R %
∆R %
∆R %
∆R %
∆R %
µV/V
ohms
volts
Not specified
zero at 155°C
0.5
2
55/125/56
2
0.5
0.5
0.5
Not Specified
>1G
700 min
CECC 40101-803
Requirements
Actual Performance
Maximum
Typical
0.9
See Graph 3
1
0.5
See Graph 3
Not Specified
0.1
zero at 155°C
0.25
0.25
1
0.5
55/125/56
1
0.5
0.25
0.25
0.25
0.25
0.25
0.1
Not Specified
0.1
>1G
>1G
500 min
700 min
Data available upon request
0.07
0.01
0.2
0.3
0.04
0.07
0.01
0.07
>1G
700 min
Graph 3 – Load for 1000 hours at 70°C: maximum changes
Packaging
All MFR resistors are supplied tape packed ready for loading
on to automatic sequencing and insertion machines.
Component wires will not protrude beyond the outside edge
of the tapes.
Alternative packaging available by request.
5
f₁
6
52
f₂
6
f₁ – f ₂ ≤ 1.4 mm
Lead Formed resistors can also be supplied. Standard options
of Lancet, Radial and Goalpost forming are available.
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.
Terminations
Material
Hot tin dipped 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
Marking
0.5% and 1% tolerance resistors are colour coded with 5
bands. IEC 62 colours are used.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
T_©ele_Tp_Tho_En_lee_c: _t+_r4_o4_ni(_c0_s) 1_p6_lc70 822181 · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
www.ttelectronicsresistors.com

07.14 ₁₃₇