MFR4-4K7GI [TTELEC]
Metal Film Resistors; 金属膜电阻器型号: | MFR4-4K7GI |
厂家: | TT Electronics |
描述: | Metal Film Resistors |
文件: | 总4页 (文件大小:1364K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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
MFR3
0.4
10R - 1M
200
MFR4
0.5
1R0 - 10M
350
50
0.5, 1,2
MFR5
0.75
1R0 - 1M
350
Power rating at 70°C
Resistance range
Limiting element voltage
TCR
watts
ohms
volts
ppm/°C
%
50
1
≤10:150 >10:100*
0.5, 1,2
Resistance tolerance
* Note:- Tighter TCR’S are available on professional grade, consult factory for details.
Approved CECC 40101 - 019 Style
FZ
0.25
1 to 1M
250
FX
0.25
1 to 1M
250
EZ
0.5
10 to 1M0
350
EX
0.5
10 to 1M
350
Power rating at 70°C
Resistance range.
Limiting element voltage
TCR
watts
ohms
volts
ppm/°C
100
250
100
250
5.1 to 9.1 : 200 5.1 to 9.1 : 500
Resistance tolerance
%
1,2
1,2
1,2
1,2
Approved CECC 40101 - 803 Style
BC
0.125
10 to 1M
200
50
0.5, 1, 2
BK
0.125
10 to 1M
200
100
0.5, 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
Power rating at 70°C
Resistance range.
Limiting element voltage
TCR
watts
ohms
volts
ppm/°C
%
Resistance tolerance
E24, E96 preferred
Standard values
Thermal impedance
°C/watt
°C
150
140
-55 to 155
112
Ambient temperature range
Product grades available
commercial
commercial, professional
Physical Data
Dimensions (mm) & Weight (g)
PCB
mount bend
centres radius
Min
Wt.
nom
Type
L max D max F min d nom
3.5
3.7
6.2
6.8
9.0
10.0
1.8
2.0
2.5
3.0
3.6
3.7
22.4
22.4
21.0
21.0
19.6
19.6
0.5
0.45
0.6
7.6
7.6
0.5
0.5
0.6
0.6
1.2
0.6
0.1
0.1
0.3
0.3
0.5
0.5
Professional
MFR3
MFR4
Commercial
Professional
Commercial
Professional
Commercial
d
D
L
10.2
10.2
12.7
12.7
f
0.55
0.8
MFR5
0.6
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 D · 05.07
135
Metal Film Resistors
MFR Series
Welwyn Components
Performance Data - Type MFR 3
CECC 40101-019
Requirements
Actual Performance
Maximum
Typical
See Graph 1
See Graph 1
0.07
Load at commercial rating : 1000 hours at 70°C
∆R %
∆R %
∆R %
0.8
0.5
0.1
Load at CECC rating :
Shelf life :
1000 hours at 70°C
2
12 months at room temperature
Not Specified
Derating
zero at 155°C
Short term overload
Climatic
∆R %
∆R %
0.5
0.25
0.5
0.03
0.2
2
55/125/56
2
Climatic category
Long term damp heat
Temperature rapid change
Resistance to solder heat
Vibration and bump
∆R %
∆R %
∆R %
∆R %
µV/V
0.5
0.3
0.05
0.5
0.25
0.5
0.25
0.02
0.5
0.1
0.01
Noise. (in a decade of frequency)
Insulation resistance
Voltage proof
Not specified
>1G
0.1
>1G
0.07
ohms
volts
>1G
350 min
400 min
400 min
Pulse handling
Data available upon request
Graph 1 – Load for 1000 hours at 70°C: maximum changes
Performance Data - Type MFR 4
CECC 40101-019
CECC 40101-803
Requirements
Actual Performance
Requirements
Maximum
Typical
Load at commercial rating :
∆R %
0.8
0.5
0.1
See Graph 2
1000 hours at 70°C
Load at CECC rating :
∆R %
∆R %
2
1
See Graph 2
0.07
1000 hours at 70°C
Shelf life :
Not specified
Not Specified
12 months at room temperature
Derating
zero at 155°C
zero at 155°C
Short term overload
Climatic
∆R %
∆R %
0.5
0.25
1
0.25
0.5
0.01
0.2
2
55/125/56
2
Climatic category
55/125/56
1
Long term damp heat
Temperature rapid change
Resistance to solder heat
Vibration and bump
Noise. (in a decade of frequency)
Insulation resistance
Voltage proof
∆R %
∆R %
∆R %
∆R %
µV/V
0.5
0.25
0.25
0.1
0.3
0.04
0.5
0.25
0.5
0.25
0.07
0.5
0.25
0.01
Not Specified
>1G
Not Specified
>1G
0.1
0.1
ohms
volts
>1G
>1G
500 min
400 min
500 min
500 min
Pulse handling
Data available upon request
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: info@welwyn-tt.com · Website: www.welwyn-tt.com
Issue D · 05.07
136
Metal Film Resistors
MFR Series
Welwyn Components
Performance Data - Type MFR 5
CECC 40101-019
CECC 40101-803
Requirements
Actual Performance
Requirements
Maximum
Typical
Load at commercial rating :
∆R %
0.9
0.5
0.1
See Graph 3
1000 hours at 70°C
Load at CECC rating :
∆R %
∆R %
2
1
See Graph 3
0.07
1000 hours at 70°C
Shelf life :
Not specified
Not Specified
12 months at room temperature
Derating
zero at 155°C
zero at 155°C
Short term overload
Climatic
∆R %
∆R %
0.5
0.25
1
0.25
0.5
0.01
0.2
2
55/125/56
2
Climatic category
55/125/56
1
Long term damp heat
Temperature rapid change
Resistance to solder heat
Vibration and bump
Noise. (in a decade of frequency)
Insulation resistance
Voltage proof
∆R %
∆R %
∆R %
∆R %
µV/V
0.5
0.25
0.25
0.1
0.3
0.04
0.5
0.25
0.5
0.25
0.07
0.5
0.25
0.01
Not Specified
>1G
Not Specified
>1G
0.1
0.07
ohms
volts
>1G
>1G
700 min
500 min
700 min
700 min
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.
Terminations
Material
Hot tin dipped copper wire
Strength
The terminations meet the requirements of
IEC 68.2.21
5
Solderability The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2
f1
f2
52
f1 – f2 ≤ 1.4 mm
6
6
Marking
0.5% and 1% tolerance resistors are colour coded with 5
bands, 2% tolerance has 4. IEC 62 colours are used.
Lead Formed resistors can also be supplied. Standard options
of Lancet, Radial and Goalpost forming are available.
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: info@welwyn-tt.com · 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
F
0.5%
1%
G
2%
Packing / Grade
MFR3, MFR4
MFR5
5000/box
2500/box
5000/box
2500/box
C
CECC release is not available for commercial grade
Ammo
MFR4
I
CECC release is optionally available for professional grade *
MFR5
* 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: info@welwyn-tt.com Website: www.welwyn-tt.com
Issue D . 05.07
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