55
Electrical characteristics
Type Technology Size
Power
P
70
Operating Temp.
range
Max.
working voltage
Tolerance Resistance range & T. C. R.
PS
Metal Foil
4 termination
0306
1/8W
-55°C to 155°C
(PxR)^1/2 ±1%, ±5%
10mΩ≤R≤50mΩ
±75ppm/°C
±100ppm/°C
1/4W
0508
1/8W
-55°C to 170°C1/4W
1/2W
0612 1W -55°C to 170°C
0.5mΩ,0.75mΩ
1mΩ≤R≤2mΩ
3mΩ≤R≤5mΩ
±700ppm/°C
±400ppm/°C
±150ppm/°C
1225 3W -55°C to 170°C 4mΩ≤R≤50mΩ
±75ppm/°C
±100ppm/°C
Note:Pleasecontactwithsalesofces,distributorsandrepresentativesinyourregionbeforeordering
Environmental characteristics
Performance test Test method Procedure Requirements
Life
MIL-STD-202G-
method 108A
1 000 hours at 70 ±5°C applied RCWV
1.5 hours on, 0.5 hours off, still air required
±(1%+0.0005Ω)
High temperature exposure
MIL-STD-202G-
method 108A
1 000 hours at maximum operating temperature
dependingonspecication,unpowered
±(1%+0.0005Ω)
Moisture resistance
MIL-STD-202G-
method 106F
Eachtemperature/humiditycycleisdenedas
8hours(method106F),3cycles/24hours
for10dwith25°C/65°C95%R.H
±(0.5%+0.0005Ω)
Solderability
Wetting J-STD-002B testB
Electricaltestnotrequired.Magnication50X
Lead-free solder bath at 245 ±3°C
Dipping time: 3 ±0.5 seconds
Well tinned
(≥95%covered)
Resistance to
soldering heat
MIL-STD-202G-
method 210F
Lead-free solder, 260°C, 10 seconds immersion time
±(0.5%+0.0005Ω)
No visible damage
Short time overload
MIL-R-55342D-
para 4.7.5
5 times of rated power for 5 seconds at room temperature
±(0.5%+0.0005Ω)
No visible damage
Chip Resistors Selection Charts
PS - Current sensors - low T.C.R. chip resistors, 4 termination, 0306 to 1225