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