Wirewound Anti-Surge Resistor
Type EP Series
Characteristics – Environmental
Item
Limits
TestꢀMethod
(JISꢀCꢀ5201-1)
TemperatureꢀCoefficient
ofꢀResistanceꢀ(TCR):
<20Ω : ±400PPM/°C
≥20Ω : ±300PPM/°C
R2-R1
R1 (t2-t1) x106 (PPM/°C)
ShortꢀTimeꢀOverload:
LoadꢀLife:
± (2% + 0.05Ω) Max
±(5.0%+0.05Ω)
RCWV*2.5 for 5 seconds
70±2°C Max. working voltage for 1000 hrs
with 1.5 hrs “ON” and 0.5 hrs “OFF”
40±2°C, 90-95% R.H. Max working voltage
for 1000 hrs with 1.5hrs hrs “ON”
and 0.5 hrs “OFF”
LoadꢀLifeꢀinꢀHumidity:
±(5.0%+0.05Ω)
Solderability:
95% min. coverage
±(1.0%+0.05Ω)
245±5°C for 3 seconds
Leads immersed 3.2 – 4.8 mm
from body - 350±10°C for 3±0.05 seconds
ResistanceꢀtoꢀSolderingꢀHeat:
No deterioration of
protective coating and markings
Immersed in trichroethane bath
for 3 minutes with ultrasonic
ResistanceꢀtoꢀSolvent:
Refer to
IEC61000-4-5
Max Surge
Voltage
SurgeꢀImmunityꢀTest:
±(5% + 0.05Ω) Max.
1/2W
1WS
4KV
5KV
1W
2WS
2W
3WS
6KV
3W
5WS
8KV
1.2μsec rising time and 50μsec discharge;
every 1 minute for 10 cycle
5W
7WS
9KV
7W
8WS
10KV
11KV
12KV
8W
9WS
9W
10WS
StorageꢀTemperature:ꢀ25±3°C;ꢀHumidityꢀ60%ꢀRHꢀ±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.
1stꢀsignificantꢀfigure
2ndꢀsignificantꢀfigure
Multiplier
Tolerence
YellowꢀcolorꢀcodeꢀforꢀAnti-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
9Wꢀ100 ΩꢀJ
2
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.
For email, phone or live chat, go to: te.com/help
ETC [ ETC ]
