PRODUCT BULLETIN
MOF-MOS SERIES
METAL OXIDE FILM RESISTORS
1/2 WATT THRU 10 WATT
EXCELLENT STABILITY
SOLVENT RESISTANT COATINGS
LOW NOISE
SMALL SIZE
FLAME RETARDENT
TOLERANCE ± 1% & ± 5%
TEMPERATURE COEFFICIENT
± 200 & ± 350 PPM/°C
WILLOW TECHNOLOGIES LTD.
SHAWLANDS COURT, NEWCHAPEL ROAD
LINGFIELD, SURREY, RH7 6BL, ENGLAND
Tel. + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306
E-mail
rob@willow.co.uk
Website
http://www.willow.co.uk
Dimensions
TYPE
MOF
1/2 W
1W
2W
3W
4W
5W
7W
MOS
1W
2W
3W
5W
6W
7W
10 W
L
DIMENSION (mm)
D
d
H(MIN)
9±1
12 ± 1
16 ± 1
25 ± 1
32 ± 1
41 ± 1
53 ± 1
3.5 ± 0.5
4.5 ± 0.5
5.5 ± 0.5
8.5 ± 0.5
8.5 ± 0.5
8.5 ± 0.5
8.5 ± 0.5
0.58 ± 0.02
0.8 ± 0.03
0.8 ± 0.03
0.8 ± 0.03
0.8 ± 0.03
0.8 ± 0.03
0.8 ± 0.03
25
27
27
27
27
27
27
H
L
D
Operating Temperature Range is -55°C to +155°C
d
Specifications
TYPE
MOF
1/2 W
1W
2W
3W
4W
5W
7W
MOS
1W
2W
3W
5W
6W
7W
10 W
WORKING
VOLTAGE
OVERLOAD
VOLTAGE
RESISTANCE
RANGE
Dimensional
Correlation
in.
.023
.032
.138
.177
.217
.335
.354
.472
.630
.984
1.260
1.614
2.087
mm
.58
0.8
3.5
4.5
5.5
8.5
9.0
12
16
25
32
41
53
Max.
300V
350V
350V
500V
500V
750V
750V
Max.
600V
700V
700V
1000V
1000V
1000V
1000V
± 5%
0.1 1
0.1 1
0.1 1
0.5 1
10 1
10 150
10 150
NOTE: 1% TOLERANCE IS AVAILABLE IN MOF 1, 2 & 3 WATTS
FROM 1 OHM THRU 1 MEG. OHM.
1/2 - 3 W PARTS ARE COLOR CODED. 4 - 7 W ARE ALPHA NUMERIC
TCR ± 200 PPM is also available. Consult factory.
Temperature Coefficients
T200 = ±200 PPM/°C
T350 = ±350 PPM/°C
How to Order
Sample Part Number
MOS
1W
T350 100K
±5%
DEDICATION TO EXCELLENCE
Subject to change without notice
Continued on reverse side
Resistance Tolerance
Resistance Value
Temperature Coefficient
Wattage
Type
REV A
1/25/00
Characteristics
REQUIREMENTS
Short Time Overload
Resistance to Soldering Heat
Temp. Cycling
Load Life
Dielectric Withstanding Voltage
Moisture Resistance
Insulation Resistance
Flammability
PERFORMANCE
Rmax
±(1% + 0.05Ω)
Rmax
±(1% + 0.05Ω)
METHOD 210
METHOD 107
Rmax
±(1% + 0.05Ω)
METHOD 108
Rmax
± 5%
METHOD 301
Rmax
±(0.5% + 0.05Ω)
METHOD 106
Rmax
± 5%
____________
> 10
4
ΜΩ
In accordance with UL 492.2.13
without producing a fire hazard.
TEST METHOD
MIL-STD-202
____________
100
LOAD %
80
60
40
20
0
-50
0
5070 100
150 155200 240
SURFACE TEMP (°C)
DERATING CURVE
250
200
150
100
50
0
0
SURFACE TEMP RISE
MOF5
MOF4
MOF3
MOF2
MOF1
MOF1/2
25
50
LOAD %
75
100
AMBIENT TEMP (°C)
Subject to change without notice
REV A
1/25/00
嵌入式系统
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