epcos
Metal Oxide Varistors and Surge Voltage Protectors
Metal Oxide Varistors
LS40K130QP-to-K750QP Series
Electrical Specifications
Maximum Ratings (85¡C)
Characteristic (25¡C)
Maximum
Continuous
Transient
Typical
Capacitance
1 KHz
Varistor*
Mfr.Õs
Type
Clamping
Voltage
AC
Voltage
(RMS)
Average
Power
Dissipation
Peak
Current
8/20 µs
Voltage
DC
Voltage
Energy
2 ms
1 mA DC
Volts
Volts
Watts
Joules Amps Ka
Volts
Volts Amps Picofarads
File E 77005
LR 63185-1
LS40K130QP
LS40K150QP
LS40K230QP
LS40K275QP
LS40K320QP
LS40K460QP
LS40K680QP
LS40K750QP
130
150
230
275
320
460
680
750
170
200
300
350
420
615
895
1060
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
310
360
460
550
640
780
1100
1200
40
40
40
40
40
40
40
40
205
240
360
430
510
750
1100
1200
340
396
595
710
840
1240
1815
2000
300
300
300
300
300
300
300
300
5600
4800
3200
2700
2300
1600
1100
1000
Mfr.Õs
Type
Tmax.
(mm)
L ±1.0
(mm)
Mfr.Õs
Type
Tmax.
(mm)
L ±1.0
(mm)
LS40K130QP
LS40K150QP
LS40K230QP
LS40K250QP
LS40K275QP
LS40K320QP
8.1
8.3
9.0
9.2
9.4
9.9
3.5
3.2
2.0
1.8
1.6
1.1
LS40K420QP
LS40K460QP
LS40K550QP
LS40K680QP
LS40K750QP
Ñ
10.9
11.4
12.3
13.5
14.1
Ñ
0.0
0.4
1.2
2.4
3.0
Ñ
*Tolerance: K=±10%.
Surge Voltage Protectors. SVPs are gas discharge tubes, hermetically sealed, composed of 2 or 3 electrodes properly spaced by insulators and filled with a rare
gas. SVPs mainly serve to provide a conductive path for unwanted, excessive transients, which prevents the transient energy and associated voltages from
damaging sensitive equipment and components, and from harming personnel. Designed for rapid switching at a specific voltage level (breakdown voltage) from a
non-conductive state to a conductive state (arc mode) when subjected to an excessive voltage transient. The SVP momentarily carries very high currents during
conduction. After discharge of the transient, the circuit allows the SVP to restore itself. In the restored conduction, the high impedance of the SVP causes very little
loss. Normal AC or DC operating circuit voltages may cause the SVP to remain in a conducting mode after the transient has passed, unless the following precautions
are taken: for AC Applications Ñ the AC follow current must not be exceeded; For DC Applications Ñ if the normal operating voltage across the tube is greater than
the glow voltage, and the current into the SVP while in arc mode, (10-20 V across the SVP) does not exceed 0.2A, a 0.68 µfd. capacitor placed in parallel with the
tube will cause it to extinguish. If the DC is greater than the given values, current must be momentarily interrupted. Electrical Characteristics Common To All
Types: Transition Time Ñ 0.1 µs typ. RINS: ³ 10,000 megohm. Capacitance: 1 pF typ. at 1 MHz. Operating and Storage Temperature Range: Ð55¡C to +130¡C.
SVP Ñ Surge Voltage Protectors
c
c
c
c
c
c
c
c
High Surge Current Capacity at 20 KA Maximum
High Insulation Resistance at ³1010 Ohm
Low Capacitance Ñ Down to 1 pF
High Breakdown Speed
Low Cost
Small Size
Designed to Meet Industry Specifications
Proven Performance: Millions in Service
The SVP is bipolar and has a symmetrical V-1 characteristic as shown below.
Button Type SVPs. Compact medium-duty 2-electrode tubes provide
protection for most circuit applications. Features high breakdown speed by
means of a patented process. Economical; easily mounted onto PC boards.
Voltage-current characteristic and voltage variation across the protector.
13
Special Button Type SVPs. Special L71 types for AC applications undergo
Vs striking voltage
Vgt glow voltage
Va arc voltage
Ve extinguishing voltage
AC burn-in to guarantee good extinguishing characteristics at high follow
currents Ñ excellent for CATV amplifiers and other applications where AC
Voltage is present.
Three-Electrode Type SVPs. Developed and refined through experience gained
from actual use in telecommunications equipment. These units are designed to
meet or exceed parameters specified in REA Specification PE-80.
G
A
glow range
arc range
2 Electrode, Miniature Button Types
Single Impulse
Discharge
Current (KA)
8/20 µs
Impulse Breakdown Voltage
Impulse
Life
(No. of Pulses)
500 A 10/100 µs
DC
Breakdown
Voltage (V)
Nominal
OD ´ LCurrent
(mm)
AC Discharge
(A)1
AC
DC
Mfr.Õs
Type
Volts at
Fig.
Follow Current
(A Peak)
Holdover
Special Notes
Voltage (V)6
100 V/µs
1 KV/µs
10 KV/µs
M51-C90
M51-A230X
1
1
90 ±20%
230 ±20%
5.0 ´ 5.0
5.0 ´ 5.0
2.5
2.5
10
10
<550
<550
<600
<650
<900
<900
Ñ
Ñ
60
100
>50
>50
General Purpose
General Purpose
2 Electrode, Standard Button Types
EC75
EC90
N81-A90X
A81-C90X
EC145
2
2
2
2
2
2
2
2
2
2
2
2
2
75 +30%/Ð20%
90 ±20%
90 ±20%
90 ±20%
145 ±20%
230 ±15%
230 ±20%
270 +25%/Ð15%
350 ±15%
350 ±20%
8.0 ´ 6.0
8.0 ´ 6.0
8.0 ´ 6.0
8.0 ´ 6.0
8.0 ´ 6.0
8.0 ´ 6.0
8.0 ´ 6.0
8.0 ´ 8.0
8.0 ´ 6.0
8.0 ´ 6.0
8.0 ´ 6.0
8.0 ´ 8.0
8.0 ´ 8.0
5.0
5.0
10.0
20.0
5.0
20
20
>65
>65
20
<550
<550
<350
<350
<550
<600
<450
<400
<650
<650
<650
<600
<1000
<600
<600
<550
<550
<600
<650
<600
<500
<700
<800
<800
<700
<1100
<1000
<1000
<700
20
20
Ñ
>60
>60
60
60
60
>80
100
Ñ
>150
120
120
Ñ
>200
>200
>200
>400
>200
>200
>400
>200
>200
>200
>400
>200
>200
General Purpose
General Purpose
General Purpose
<700
Ñ
General Purpose, High Current
60 VAC Application (CATV)
General Purpose (Communication)
General Purpose, High Current
120 VAC Application (S20K1505)
General Purpose (Communication)
General Purpose
General Purpose, High Current
220 VAC Application (S20K2505)
440 VAC Application (S20K4609)
<1000
<1000
<800
>1002
25
EC230
5.0
20
A81-A230X
L71-A270X*
EC350
N81-A350X
A81-A350X
L71-A470X*
L71-A800X*
20.0
10.0
5.0
10.0
20.0
10.0
10.0
>65
>65
20
>65
>65
>65
>65
Ñ
>35
25
Ñ
Ñ
<700
<1000
<1000
<1000
<800
350 ±20%
470 +25%/Ð15
800 +25%/Ð15
>35
>35
<1300
Ñ
3 Electrode Types
T83-A90X
T23-A230X
T23-A350
T61-C350
3
3
3
4
90 ±20%
230 ±20%3
350 ±20%3
300-5003
8.0 ´ 10.0
8.0 ´ 10.0
8.0 ´ 10.0
9.5 ´ 11.5
5.0
>20
>20
>20
>65
<250
<350
<550
<550
<350
<450
<650
<650
<500
<600
<800
<800
Ñ
Ñ
Ñ
Ñ
60
150
150
150
>100
>504
Medium Duty, Communication Use
Medium Duty, Communication Use
Medium Duty, Communication Use
Heavy Duty, Communication Use
10.03
10.03
10.03
>1004
>400
*Special button type SVP for AC applications. 111 cycles, 60 Hz, 1 Time. 260 VRMS. 3Line to ground, single side. 4 Changing polarity after each surge. 5Suggested limiting EPCOS Varistor. 6In accordance with IEEE C62.31.
810
b
ALLIED
For Local Personalized Service Call 1-800-433-5700
5秒后页面跳转
三星深化印度制造布局，供应链本地化进程加速
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
纳微科技震撼发布GaNSlim革新氮化镓功率芯片
意法半导体发布第四代SiC技术，助力电动汽车电驱
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
技术参数
数据手册
如果您发现信息不准确，
