EP3WS47RJ Datasheet, PDF (4/5 Pages) List of Unclassifed Manufacturers – Type EP Series

Wirewound Anti-Surge Resistor
Type EP Series
Characteristics – Environmental
Item
TemperatureCoefficient
ofResistance(TCR):
ShortTimeOverload:
LoadLife:
LoadLifeinHumidity:
Solderability:
ResistancetoSolderingHeat:
ResistancetoSolvent:
SurgeImmunityTest:
Limits
TestMethod
(JISC5201-1)
<20Ω : ±400PPM/°C
≥20Ω : ±300PPM/°C
± (2% + 0.05Ω) Max
R2-R1
R1 (t2-t1) x10₆ (PPM/°C)
RCWV*2.5 for 5 seconds
±(5.0%+0.05Ω)
70±2°C Max. working voltage for 1000 hrs
with 1.5 hrs “ON” and 0.5 hrs “OFF”
±(5.0%+0.05Ω)
40±2°C, 90-95% R.H. Max working voltage
for 1000 hrs with 1.5hrs hrs “ON”
and 0.5 hrs “OFF”
95% min. coverage
245±5°C for 3 seconds
±(1.0%+0.05Ω)
Leads immersed 3.2 – 4.8 mm
from body - 350±10°C for 3±0.05 seconds
No deterioration of
protective coating and markings
Immersed in trichroethane bath
for 3 minutes with ultrasonic
±(5% + 0.05Ω) Max.
Refer to
IEC61000-4-5
Max Surge
Voltage
1/2W
1WS
4KV
1W
2WS
5KV
2W
3WS
6KV
3W
5WS
8KV
1.2 μsec rising time and 50 μsec discharge;
every 1 minute for 10 cycle
5W
7WS
9KV
7W
8WS
10KV
8W
9WS
11KV
9W
10WS
12KV
StorageTemperature:25±3°C;Humidity60%RH±10%
Marking
For EP Normal Size 1/2W, 1W, 2W, 3W and EP Small Size 1WS, 2WS, 3WS, 5WS Resistors shall be marked with
color coding in accordance with JIS C 0802.
1stsignificantfigure
2ndsignificantfigure
Multiplier
Tolerence
YellowcolorcodeforAnti-Surge
For EP Normal Size 5W, 7W, 8W 9W and EP Small Size 7WS, 8WS, 9WS, 10WS Resistors will be marked with
power rating, nominal resistance and resistance tolerance code.
1
3
9W100 ΩJ
9-1773463-6 CIS WR 03/2012
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
2
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