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70
M25SI
Vishay Draloric
Document Number 20031
Revision 05-Aug-02
For Technical Questions, contact: ff2aresistors@vishay.com
FEATURES
Metal film on high quality ceramic
Special protective top coat
Flame retardant
SnPb contacts on Ni barrier layer
Fusible resistor for constant voltage
Automatic placement compatibility
Thin Film, Rectangular, Fusible, Resistor Chips
M25SI
100
91R
5%
P5
MODEL
TC
RESISTANCE VALUE TOLERANCE
PACKAGING
ppm / K
%
P5-Papertape 5000 pcs
MODEL SIZE
POWER
LIMITING ELEMENT
TEMPERATURE
TOLERANCE
RESISTANCE
E-SERIES
INCH
METRIC
RATING
VOLTAGE
COEFFICIENT
RANGE
W
70
C
V
MAX
ppm/K
%
M25SI
1206
3216
0.25
PxR
100
5
1R 3K9
24
ORDERING INFORMATION
Power rating depends on the max. temperature at the solder point,
the component placement density and the substrate material.
Marking: 3 digits.
Ask about extended value ranges.
TC 50ppm/
C, Tolerance 1% on special request.
Top coat: beige, transparent.
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
M25SI
Rated Dissipation at 70
C
W
0.25
Insulation Voltage (1 min)
V
dc/ac peak
> 300
Thermal Resistance
1)
K/W
220
1)
Insulation Resistance
> 10
9
Category Temperature Range
C
- 55 / + 125
Failure Rate
h
1
1 10
9
Weight / 1000pcs
g
10
1)
Measuring conditions in acc. with CECC 40401
Fusing Performance
Power / Watt
0
1
2
3
4
5
6
7
8
9
10
Time to Fuse in Seconds
0.01
0.1
1
10
100
1000
0.001
1
10
100
1000
10000
1
10
100
1000
Voltage in V
Resistance Value in Ohm
Maximum Applicable Voltage after Fusing
STANDARD ELECTRICAL SPECIFICATIONS
PULSE TEST DATA
Pulse Power (Square Pulse)
0.9W
0.3W
Pulse Duration t
i
100
s
100ms
Pulse Pause t
p
100ms
1s
Number of pulses
10
5
10
5
Drift after pulse test
< 0.1%
< 0.1%
www.vishay.com
71
M25SI
Vishay Draloric
Document Number 20031
Revision 05-Aug-02
For Technical Questions, contact: ff2aresistors@vishay.com
Thin Film, Rectangular, Fusible, Resistor Chips
SIZE
DIMENSIONS in millimeters
INCH METRIC
L
W
H
T1
T2
1206
3216
3.2
1.6
0.15 0.55
0.05 0.45
0.2
0.4
0.2
+ 0.10
0.20
DIMENSIONS
SIZE SOLDER PAD DIMENSIONS in millimeters*
INCH METRIC
a
b
l
a
b
l
1206
3216
0.9
1.7
2.0
1.1
1.7
2.3
120
100
80
60
40
20
0
- 55 -25 0 25 50
75
100
125
150 175
Ambient Temperature in
C
Rated Power In %
70
APPLICABLE SPECIFICATIONS
*Pads: recommendations only
CECC40000 / 40400
EN140400 / IEC 60115 1
Derating
100
75
60
45
30
15
0
Temperature Rise In
C
0
0.1
0.2
0.3
0.4
Power in Watt
Temperature Rise
PERFORMANCE
TEST
CONDITIONS OF TEST
REQUIREMENTS
1)
Endurance Test at 70
C
1000 hours at 70
C 1.5 hours "ON", 0.5 hours "OFF"
1%
IEC 60115-1 4.25.1
Endurance at UCT
1000 hours at 125
C without load
1%
IEC 60115-1 4.25.3
Thermal Shock
Rapid change between upper and lower
0.2%
IEC 60115-1 4.19, IEC 60068-2-14
category temperature
Damp Heat Steady State
56 days at 40
C and 93% relative humidity
0.5%
IEC 60115-1 4.24, IEC 60068-2-3
Resistance to Soldering Heat
10 seconds at 260
C solder bath temperature
0.2%
IEC 60115-1 4.18, IEC 60068-2-20
1)
Limits for change of resistance at test
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