Welwyn MFR4-4K7DI Metal film resistor Datasheet

Metal Film Resistors
Welwyn Components
MFR Series
•
Professional grade approved to
BSCECC 40101-803 and 019
•
Tolerances down to 0.5%
•
Temperature coefficient down to 50ppm/°C
Electrical Data
Power rating at 70°C
Resistance range
Limiting element voltage
TCR
Resistance tolerance
MFR3
0.4
10R - 1M
200
50
1
watts
ohms
volts
ppm/°C
%
MFR4
0.5
1R0 - 10M
350
50
0.5, 1,2
MFR5
0.75
1R0 - 1M
350
≤10:150 >10:100*
0.5, 1,2
* Note:- Tighter TCR’S are available on professional grade, consult factory for details.
Approved CECC 40101 - 019 Style
Power rating at 70°C
watts
Resistance range.
ohms
Limiting element voltage
volts
TCR
ppm/°C
Resistance tolerance
FZ
FX
0.25
0.25
1 to 1M
1 to 1M
250
250
100
250
5.1 to 9.1 : 200 5.1 to 9.1 : 500
1,2
1,2
%
Approved CECC 40101 - 803 Style
Power rating at 70°C
watts
Resistance range.
ohms
Limiting element voltage
volts
TCR
ppm/°C
Resistance tolerance
%
BC
0.125
10 to 1M
200
50
0.5, 1, 2
BK
0.125
10 to 1M
200
100
0.5, 1, 2
EZ
0.5
10 to 1M0
350
100
EX
0.5
10 to 1M
350
250
1,2
1,2
CC
0.25
10 to 1M
250
50
0.5, 1, 2
CK
0.25
10 to 1M
250
100
0.5, 1, 2
E24, E96 preferred
Standard values
Thermal impedance
Ambient temperature range
Product grades available
°C/watt
°C
150
140
-55 to 155
commercial, professional
commercial
112
Physical Data
Dimensions (mm) & Weight (g)
d nom
PCB
mount
centres
Min
bend
radius
Wt.
nom
22.4
0.5
7.6
0.5
0.1
22.4
0.45
7.6
0.5
0.1
2.5
21.0
0.6
10.2
0.6
0.3
6.8
3.0
21.0
0.55
10.2
0.6
0.3
Professional
9.0
3.6
19.6
0.8
12.7
1.2
0.5
Commercial
10.0
3.7
19.6
0.6
12.7
0.6
0.5
Type
MFR3
MFR4
MFR5
L max
D max
F min
Professional
3.5
1.8
Commercial
3.7
2.0
Professional
6.2
Commercial
d
D
L
f
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: [email protected] · Website: www.welwyn-tt.com
A subsidiary of
TT electronics plc
Issue D · 05.07
135
Metal Film Resistors
Welwyn Components
MFR Series
Performance Data - Type MFR 3
CECC 40101-019
Requirements
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 %
∆R %
∆R %
∆R %
∆R %
∆R %
∆R %
∆R %
∆R %
µV/V
ohms
volts
2
Not Specified
zero at 155°C
0.5
2
55/125/56
2
0.5
0.5
0.5
Not specified
>1G
350 min
Actual Performance
Maximum
Typical
0.8
See Graph 1
0.5
See Graph 1
0.1
0.07
0.25
0.5
0.03
0.2
0.5
0.25
0.25
0.1
0.1
>1G
400 min
Data available upon request
0.3
0.05
0.02
0.01
0.07
>1G
400 min
Graph 1 – Load for 1000 hours at 70°C: maximum changes
Performance Data - Type MFR 4
CECC 40101-019
Requirements
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
CECC 40101-803
Requirements
Actual Performance
Maximum
Typical
∆R %
0.8
See Graph 2
∆R %
2
1
0.5
See Graph 2
∆R %
Not specified
Not Specified
0.1
0.07
zero at 155°C
0.5
2
55/125/56
2
0.5
0.5
0.5
Not Specified
>1G
500 min
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
400 min
500 min
Data available upon request
∆R %
∆R %
∆R %
∆R %
∆R %
∆R %
µV/V
ohms
volts
0.01
0.2
0.3
0.04
0.07
0.01
0.1
>1G
500 min
Graph 2 – Load for 1000 hours at 70°C: maximum changes
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: [email protected] · Website: www.welwyn-tt.com
136
Issue D · 05.07
Metal Film Resistors
Welwyn Components
MFR Series
Performance Data - Type MFR 5
CECC 40101-019
Requirements
Load at commercial rating :
CECC 40101-803
Requirements
Actual Performance
Maximum
Typical
∆R %
1000 hours at 70°C
Load at CECC rating :
1000 hours at 70°C
Shelf life :
12 months at room temperature
0.9
See Graph 3
∆R %
2
1
0.5
See Graph 3
∆R %
Not specified
Not Specified
0.1
0.07
Derating
zero at 155°C
zero at 155°C
Short term overload
∆R %
0.5
0.25
0.25
0.01
Climatic
∆R %
2
1
0.5
0.2
Climatic category
55/125/56
55/125/56
Long term damp heat
∆R %
2
1
0.5
0.3
Temperature rapid change
∆R %
0.5
0.25
0.25
0.04
Resistance to solder heat
∆R %
0.5
0.25
0.25
0.07
Vibration and bump
∆R %
0.5
0.25
0.1
0.01
Noise. (in a decade of frequency)
µV/V
Not Specified
Not Specified
0.1
0.07
Insulation resistance
ohms
>1G
>1G
>1G
>1G
volts
700 min
500 min
700 min
700 min
Voltage proof
Pulse handling
Data available upon request
Graph 3 – Load for 1000 hours at 70°C: maximum changes
Packaging
Construction
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.
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.
Alternative packaging available by request.
5
f1
6
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
f2
52
Terminations
6
f1 – f2 ≤ 1.4 mm
Lead Formed resistors can also be supplied. Standard options
of Lancet, Radial and Goalpost forming are available.
Marking
0.5% and 1% tolerance resistors are colour coded with 5
bands, 2% tolerance has 4. IEC 62 colours are used.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: [email protected] · Website: www.welwyn-tt.com
Issue D · 05.07
137
Metal Film Resistors
MFR Series
Ordering Procedure
Example: Professional grade MFR4 at 4.7 kilohms and 1% tolerance in ammo pack box of 5000 pieces -
MFR4 - 4K7
F
I
Type
Value (use IEC62 code)
Tolerance (use IEC62 code)
D
0.5%
F
1%
G
2%
Packing / Grade
C
I
Ammo
MFR3, MFR4
5000/box
MFR5
2500/box
MFR4
5000/box
MFR5
2500/box
CECC release is not available for commercial grade
CECC release is optionally available for professional grade *
* For CECC released product state on order the CECC number and style.
Example: MFR4-4K7FI CECC40101-019 FZ
© Welwyn Components Limited Bedlington Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: [email protected] Website: www.welwyn-tt.com
Issue D . 05.07
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