Wirewound Anti-Surge Resistor
Type EP Series
Key Features
n
Power up to 10W in
Small Size
n
16 Size / Power Options
n
Specially Designed and
Tested for Surge Immunity
n
Flame Resistant Coating
TE Connectivity is pleased to offer this wire wound axial leaded resistor. Robustly manufactured 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
Normal
size
Small
size
Type
Rated
Power
at70°C
Max.
Working
Voltage
Max.
Overload
Voltage
Dielectric
Withstanding
Voltage
Resistance
Range
EP05W
1/2W
(0.50W)
500 V
1,000 V
350 V
10Ω – 560Ω
EP1W
1W
500 V
1,000 V
500 V
10Ω – 1KΩ
EP2W
2W
500 V
1,000 V
500 V
10Ω – 2KΩ
EP3W
3W
500 V
1,000 V
500 V
10Ω – 3KΩ
EP5W
5W
500 V
1,000 V
500 V
10Ω – 5KΩ
EP7W
7W
500 V
1,000 V
500 V
10Ω – 6KΩ
EP8W
8W
500 V
1,000 V
500 V
10Ω – 10KΩ
EP9W
9W
500 V
1,000 V
500 V
10Ω – 15KΩ
EP1WS
1W
500 V
1,000 V
500 V
10Ω – 560Ω
EP2WS
2W
500 V
1,000 V
500 V
10Ω – 1KΩ
EP3WS
3W
500 V
1,000 V
500 V
10Ω – 2KΩ
EP5WS
5W
500 V
1,000 V
500 V
10Ω – 3KΩ
EP7WS
7W
500 V
1,000 V
500 V
10Ω – 5KΩ
EP8WS
8W
500 V
1,000 V
500 V
10Ω – 6KΩ
EP9WS
9W
500 V
1,000 V
500 V
10Ω – 10KΩ
EP10WS
10W
500 V
1,000 V
500 V
10Ω – 15KΩ
Operating
Temp.
Range
-55℃ –
+155℃
-55℃ –
+155℃
Power Derating Curve
+70 °C
+155 °C
50
150
+275 °C
100
RatedLoad(%)
80
60
40
20
0
-55
0
100
200
250
300
AmbientTemperature(°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
Maximum
Surge
Voltage
Medium
Resistance
Range
EP05W
10Ω – 40Ω
3KV
43Ω – 240Ω
EP1W
10Ω – 50Ω
4KV
51Ω – 240 Ω
EP2W
10Ω – 100Ω
5KV
110Ω – 240Ω
EP3W
10Ω – 100Ω
7KV
EP5W
10Ω – 160Ω
8KV
EP7W
10Ω – 160Ω
EP8W
10Ω – 160Ω
EP9W
10Ω – 160Ω
10KV
EP1WS
10Ω – 40Ω
3KV
EP2WS
10Ω – 50Ω
4KV
EP3WS
10Ω – 100Ω
5KV
EP5WS
10Ω – 100Ω
EP7WS
10Ω – 160Ω
EP8WS
10Ω – 160Ω
EP9WS
10Ω – 160Ω
EP10WS
10Ω – 160Ω
10KV
Maximum
Surge
Voltage
High
Resistance
Range
Maximum
Surge
Voltage
4kV
270Ω – 560Ω
4kV
5kV
270Ω – 1kΩ
5kV
6kV
270Ω – 2kΩ
6kV
110Ω – 680Ω
8kV
750Ω – 3kΩ
8kV
180Ω – 680Ω
9kV
750Ω – 5kΩ
9kV
9KV
180Ω – 680Ω
10kV
750Ω – 6kΩ
10kV
10KV
180Ω – 680Ω
11kV
750Ω – 10kΩ
11kV
180Ω – 680Ω
11kV
750Ω – 15kΩ
12kV
43Ω – 240Ω
4kV
270Ω – 560Ω
4kV
51Ω – 240 Ω
5kV
270Ω – 1kΩ
5kV
110Ω – 240Ω
6kV
270Ω – 2kΩ
6kV
7KV
110Ω – 680Ω
8kV
750Ω – 3kΩ
8kV
8KV
180Ω – 680Ω
9kV
750Ω – 5kΩ
9kV
9KV
180Ω – 680Ω
10kV
750Ω – 6kΩ
10kV
10KV
180Ω – 680Ω
11kV
750Ω – 10kΩ
11kV
180Ω – 680Ω
11kV
750Ω – 15kΩ
12kV
SmallSize
Surge Waveform (1.2 /50 µs)
1.2 / 50 µs Voltage Capability
PeakVoltage(Volt)
10000
0.5 W
1W
2W
3W
5W
7W
8W
9W
1000
100
10
100
1000
10000
Value(Ω)
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
3
6
7
No.
Name
Material
1
Basic Body
Rod Type Ceramics
2
Resistance Wire
Ni-Cr Alloy, Cu-Ni Alloy
3
End Cap
Steel (Tin plated iron surface)
4
Lead Wire
Annealed copper wire coated with tin
5
Joint
6
Coating
7
Color Code
By welding
Insulated & Non-Flame paint (Color: Light Green)
Non-Flame epoxy resin
Dimensions
ød
H
PartNo.
9-1773463-6 CIS WR 03/2012
L
H
D
PowerRating
at70℃
D±1
EP05W
1/2W (0.50W)
3.5
10.0
0.54
28
EP1W
1W
5.0
12.0
0.70
25
EP2W
2W
5.5
16.0
0.70
28
EP3W
3W
6.5
17.5
0.75
28
EP5W
5W
8.5
25.0
0.75
38
EP7W
7W
8.5
30.0
0.75
38
EP8W
8W
8.5
40.0
0.75
38
EP9W
9W
8.5
53.0
0.75
38
EP1WS
1W-S
3.5
10.0
0.54
28
EP2WS
2W-S
5.0
12.0
0.70
25
EP3WS
3W-S
5.5
16.0
0.70
28
EP5WS
5W-S
6.5
17.5
0.75
28
EP7WS
7W-S
8.5
25.0
0.75
38
EP8WS
8W-S
8.5
30.0
0.75
38
EP9WS
9W-S
8.5
40.0
0.75
38
EP10WS
10W-S
8.5
53.0
0.75
38
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.
Dimension(mm)
L±1
d±0.05
H±3
For email, phone or live chat, go to: te.com/help
Wirewound Anti-Surge Resistor
Type EP Series
Characteristics – Environmental
Limits
TestMethod
(JISC5201-1)
TemperatureCoefficient
ofResistance(TCR):
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