Datasheet

1
SMW series
POWER WIRE WOUND CHIP RESISTORS
ELECTRICAL AND MECHANICAL PERFORMANCE
ENVIRONMENTAL CHARACTERISTICS
1. Flameproof UL94V0 molded package, resistant to heat,
humidity & insulation.
2. Special design for automatic surface mounting.
3. Excellent mechanical strength & electrical stability.
4. Reducing assembly costs.
Features
1.
2.
3.
4.
Characteristics
Characteristics
Resistance Tolerance
Resistance Temp. Coeff.
Power Rating Load
Short Time Overload
Dielectric Withstanding Voltage
Insulation Resistance
Solder-ability
Resistance to Soldering Heat
Temp. Cycle
Load Life
Moisture-proof Load Life
Standards
Standards
5% ( J ) or 1% ( F )
R/R 1%
200 ppm /
R/R 2%
Surface temp. 275 Max.
275 , R/R 1%
R/R 2%
1%
Minimum 95% coverage
95%
No evidence of mechanical damage.
, R/R 1%
No evidence of mechanical damage
or insulation breakdown.
AC 500V for 1 minutes
AC 500V 1
Rated voltage for 30 minutes
/ 30
5 times of rated wattage
for 5 seconds.
Test Methods
Test Methods
-
-55 ( 30 min.) Room Temp.( 3 min.)
+200 ( 30 min.)
Room Temp.( 3 min.) / ( 5 cycles)
-55 ~ 200
Rated power load 90 minutes ON
30 minutes OFF
70 1000 hours
Rated power load 90 minutes ON
30 minutes OFF
40 95% RH 500 hours
235 5 for 2 seconds
DC 500V megger
270 5 for 10 1 seconds
5 / 5
10,000MÙ
Reference Standards
IEC 60115-1
JIS C 5201-1