TE Connectivity is pleased to offer this wire wound axial leaded resistor. Robustly manufac-
tured with high quality materials this resistor offers flame proof coating, and is designed and
tested to withstand power surges of up to 12KV.
Characteristics – Electrical
Type
Rated
Power
at70°C
1/2W
(0.50W)
1W
2W
3W
5W
7W
8W
9W
1W
2W
3W
5W
7W
8W
9W
10W
Max.
Working
Voltage
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
Max.
Overload
Voltage
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
1,000 V
Dielectric
Withstanding
Voltage
350 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
500 V
Resistance
Range
10Ω – 560Ω
10Ω – 1KΩ
10Ω – 2KΩ
10Ω – 3KΩ
10Ω – 5KΩ
10Ω – 6KΩ
10Ω – 10KΩ
10Ω – 15KΩ
10Ω – 560Ω
10Ω – 1KΩ
10Ω – 2KΩ
10Ω – 3KΩ
10Ω – 5KΩ
10Ω – 6KΩ
10Ω – 10KΩ
10Ω – 15KΩ
-55℃ –
+155℃
-55℃ –
+155℃
Operating
Temp.
Range
Normal
size
EP05W
EP1W
EP2W
EP3W
EP5W
EP7W
EP8W
EP9W
Small
size
EP1WS
EP2WS
EP3WS
EP5WS
EP7WS
EP8WS
EP9WS
EP10WS
Power Derating Curve
+70 °C
100
80
RatedLoad(%)
60
40
20
0
-55
0
50
100
150
200
250
300
AmbientTemperature(°C)
+155 °C
+275 °C
For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with this curve.
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
Wirewound Anti-Surge Resistor
Type EP Series
Surge Rating
Type
Low
Resistance
Range
10Ω – 40Ω
10Ω – 50Ω
10Ω – 100Ω
10Ω – 100Ω
10Ω – 160Ω
10Ω – 160Ω
10Ω – 160Ω
10Ω – 160Ω
10Ω – 40Ω
10Ω – 50Ω
10Ω – 100Ω
10Ω – 100Ω
10Ω – 160Ω
10Ω – 160Ω
10Ω – 160Ω
10Ω – 160Ω
Maximum
Surge
Voltage
3KV
4KV
5KV
7KV
8KV
9KV
10KV
10KV
3KV
4KV
5KV
7KV
8KV
9KV
10KV
10KV
Medium
Resistance
Range
43Ω – 240Ω
51Ω – 240 Ω
110Ω – 240Ω
110Ω – 680Ω
180Ω – 680Ω
180Ω – 680Ω
180Ω – 680Ω
180Ω – 680Ω
SmallSize
EP1WS
EP2WS
EP3WS
EP5WS
EP7WS
EP8WS
EP9WS
EP10WS
43Ω – 240Ω
51Ω – 240 Ω
110Ω – 240Ω
110Ω – 680Ω
180Ω – 680Ω
180Ω – 680Ω
180Ω – 680Ω
180Ω – 680Ω
4kV
5kV
6kV
8kV
9kV
10kV
11kV
11kV
270Ω – 560Ω
270Ω – 1kΩ
270Ω – 2kΩ
750Ω – 3kΩ
750Ω – 5kΩ
750Ω – 6kΩ
750Ω – 10kΩ
750Ω – 15kΩ
4kV
5kV
6kV
8kV
9kV
10kV
11kV
12kV
Maximum
Surge
Voltage
4kV
5kV
6kV
8kV
9kV
10kV
11kV
11kV
High
Resistance
Range
270Ω – 560Ω
270Ω – 1kΩ
270Ω – 2kΩ
750Ω – 3kΩ
750Ω – 5kΩ
750Ω – 6kΩ
750Ω – 10kΩ
750Ω – 15kΩ
Maximum
Surge
Voltage
4kV
5kV
6kV
8kV
9kV
10kV
11kV
12kV
EP05W
EP1W
EP2W
EP3W
EP5W
EP7W
EP8W
EP9W
Surge Waveform (1.2 /50 µs)
1.2 / 50 µs Voltage Capability
10000
PeakVoltage(Volt)
0.5 W
1W
2W
3W
5W
7W
8W
9W
1000
100
10
100
Value(Ω)
1000
10000
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
Wirewound Anti-Surge Resistor
Type EP Series
Construction
2
1
5
4
6
3
7
No.
1
2
3
4
5
6
7
Name
Basic Body
Resistance Wire
End Cap
Lead Wire
Joint
Coating
Color Code
Material
Rod Type Ceramics
Ni-Cr Alloy, Cu-Ni Alloy
Steel (Tin plated iron surface)
Annealed copper wire coated with tin
By welding
Insulated & Non-Flame paint (Color: Light Green)
Non-Flame epoxy resin
Dimensions
ød
H
L
H
D
PartNo.
EP05W
EP1W
EP2W
EP3W
EP5W
EP7W
EP8W
EP9W
EP1WS
EP2WS
EP3WS
EP5WS
EP7WS
EP8WS
EP9WS
EP10WS
PowerRating
at70℃
1/2W (0.50W)
1W
2W
3W
5W
7W
8W
9W
1W-S
2W-S
3W-S
5W-S
7W-S
8W-S
9W-S
10W-S
D±1
3.5
5.0
5.5
6.5
8.5
8.5
8.5
8.5
3.5
5.0
5.5
6.5
8.5
8.5
8.5
8.5
Dimension(mm)
L±1
d±0.05
10.0
12.0
16.0
17.5
25.0
30.0
40.0
53.0
10.0
12.0
16.0
17.5
25.0
30.0
40.0
53.0
0.54
0.70
0.70
0.75
0.75
0.75
0.75
0.75
0.54
0.70
0.70
0.75
0.75
0.75
0.75
0.75
H±3
28
25
28
28
38
38
38
38
28
25
28
28
38
38
38
38
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
Wirewound Anti-Surge Resistor
Type EP Series
Characteristics – Environmental
Item
TemperatureCoefficient
ofResistance(TCR):
ShortTimeOverload:
LoadLife:
LoadLifeinHumidity:
Solderability:
ResistancetoSolderingHeat:
ResistancetoSolvent:
SurgeImmunityTest:
Limits
<20Ω : ±400PPM/°C
≥20Ω : ±300PPM/°C
± (2% + 0.05Ω) Max
±(5.0%+0.05Ω)
±(5.0%+0.05Ω)
95% min. coverage
±(1.0%+0.05Ω)
No deterioration of
protective coating and markings
±(5% + 0.05Ω) Max.
TestMethod
(JISC5201-1)
R2-R1
R1 (t2-t1) x10
6
(PPM/°C)
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”
245±5°C for 3 seconds
Leads immersed 3.2 – 4.8 mm
from body - 350±10°C for 3±0.05 seconds
Immersed in trichroethane bath
for 3 minutes with ultrasonic
Refer to
IEC61000-4-5
Max Surge
Voltage
1/2W
1WS
1W
2WS
2W
3WS
3W
5WS
1.2 μsec rising time and 50 μsec discharge;
every 1 minute for 10 cycle
5W
7WS
7W
8WS
8W
9WS
9W
10WS
StorageTemperature:25±3°C;Humidity60%RH±10%
4KV
5KV
6KV
8KV
9KV
10KV
11KV
12KV
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
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
Wirewound Anti-Surge Resistor
Type EP Series
Packaging
EP Normal Size: 1/2W, 1W, 2W, 3W and EP Small Size 1WS, 2WS, 3WS, 5WS supplied taped in “ammo boxes”.
All larger sizes supplied bulk packed in boxes
How to Order
EP
CommonPart
3W
Powerrating
200R
Nominal
Resistance
10Ω – 10R
1KΩ -1K0
(1000Ω)
J
Resistance
Tolerance
05W = 1/2W
1W = 1W
EP
1WS = 1WS
As per Electrical
characteristics chart
F = ±1%
G = ±2%
J = ±5%
K = ±10%
TE Connectivity, TE connectivity (logo) and TE (logo) are trademarks.
Other logos, product and Company names mentioned herein may be trademarks of their respective owners.
While TE has made every reasonable effort to ensure the accuracy of the information in this datasheet, TE does not guarantee that it is error-free, nor does TE make any other
representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE reserves the right to make any adjustments to the information contained herein
at any time without notice. TE expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of merchantabili-
ty or fitness for a particular purpose. The dimensions in this datasheet are for reference purposes only and are subject to change without notice. Specifications are subject to change
without notice. Consult TE for the latest dimensions and design specifications.
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