Ultra High Energy Metal Oxide Varistors Class I MOV
16
EMI/EMC Total Solution I-Spec Co.,Ltd. IHV Series IHVT Series IHVB Series www.i-spec.co.kr/eng Ultra High Energy Metal Oxide Varistors Class I MOV IHV
Transcript of Ultra High Energy Metal Oxide Varistors Class I MOV
EMI/EMC Total Solution
I-Spec Co.,Ltd.
IHV Series
IHVT Series
IHVB Series
www.i-spec.co.kr/eng
Ultra High EnergyMetal Oxide VaristorsClass I MOV
IHV
2
Metal Oxide Varistors(MOV) Class I High Energy Disc Varistors
IHV Series
Features
Part number Designation
General Technical Data
High Energy Varistor Discs IHV Series are Class
I heavy duty metal oxide varistors, designed
for high impulse current capability. IHV Series
offer an excellent surge protection according to
IEC 61643-11 Class I / (EN 61643-11, Type 1) for
use in the surge protective devices (SPDs). The
Iimp(10/350 μs) current level of IHV meets the
lighting protection level of IEC 60305-2. The ultra
high energy capability and glass passivation are
advantages over other existing MOVs.
• Wide operating voltage range VRMS : 130 V to 690 V
• Different model sizes available depending on current - Rectangular : 35 x 46 mm (40R) for Iimp = 12.5 kA - Square : 41 x 41 mm (41S) for Iimp = 12.5 kA - Circle : 66C for Iimp = 25 kA, 91C for Iimp = 50 kA
• Ultra high–energy absorption capability at 10/350 μs
• Low limiting voltages at Imax/2.
• Available in various versions and custom designed terminals.
Operating Ambient Temperature Range : -55 to + 85˚CHi-Pot Encapsulation (COATING Isolation Voltage Capability) : 2000 V
IHV 320 B 40 S D
I-spec High Energy Varistor
Maximum AC Continuous Operation Voltage
Rated Size ofVaristor Disk(mm)
Varistor Shape
Parallel Connection
Varistor Insulation
320 (320 Vac)
40 (41 x 41)45 (35 x 46)66 (Dia. 66)91 (Dia. 91)
C (Circle)R (Rectangular)S (Square)
S (Single)D (Dual)
B (Bare)C (Epoxy Coated) M (Silicone Molded)N (Non-Epoxy Coated)
3
Rectangular & Square
All specified voltages are available also as:- Non-Epoxy and Epoxy coated versions with customized different designs of the terminals- Bare disk with silver electrode and glass passivation
PartNumber
Maximum rating
Typ.VN(DC)
@1mA(DC)
(V)
Maximum rating
Typ.Cap (nF)@1kHz
VRMS,VM(AC)
(V)
VDC,VM(DC)
(V)
10/350 μs(25°C) 8/20 μs(25°C)
Iimp
(kA)Vc@Iimp
(V)WTM@Iimp
(kJ)In
(kA)Vc@In
(V)
IMAX,ITM
(kA)
IHV130C45RSIHV130C40SS 130 170 200 12.5 500 3.4 30 700 60 10.5
IHV150C45RSIHV150C40SS 150 200 240 12.5 600 4.3 30 800 60 8.6
IHV230C45RSIHV230C40SS 230 300 360 12.5 800 6.2 30 1,200 60 5.6
IHV250C45RSIHV250C40SS 250 320 390 12.5 900 7.0 30 1,300 60 5.2
IHV275C45RSIHV275C40SS 275 350 430 12.5 1,000 7.9 30 1,400 60 4.7
IHV320C45RSIHV320C40SS 320 410 510 12.5 1,200 10.2 30 1,600 60 3.9
IHV350C45RSIHV350C40SS 350 450 560 12.5 1,300 11.0 30 1,800 60 3.7
IHV385C45RSIHV385C40SS 385 505 620 12.5 1,400 11.9 30 2,000 60 3.3
IHV420C45RSIHV420C40SS 420 560 680 12.5 1,600 12.7 30 2,200 60 3
IHV440C45RSIHV440C40SS 440 585 715 12.5 1,700 14.0 30 2,300 60 2.9
IHV460C45RSIHV460C40SS 460 615 750 12.5 1,800 15.2 30 2,400 60 2.7
IHV510C45RSIHV510C40SS 510 670 820 12.5 1,900 17.0 30 2,600 60 2.5
IHV680C45RSIHV680C40SS 680 895 1100 12.5 2,500 24.3 30 3,400 60 1.9
IHV750C45RSIHV750C40SS 750 970 1200 12.5 2,700 26.3 30 3,700 60 1.7
NOTE :
Specification of MOVs for Iimp = 12.5 kA
IHV Series
Specification of MOVs for Iim p= 12.5 kA
4
Rectangular Bare
Rectangular Epoxy Coated
Model Tmax(mm)
IHV130B45RS 3.8
IHV150B45RS 4.5
IHV230B45RS 6.8
IHV250B45RS 7.4
IHV275B45RS 8.1
IHV320B45RS 9.6
IHV350B45RS 10.6
IHV385B45RS 11.7
IHV420B45RS 12.8
IHV440B45RS 13.5
IHV460B45RS 14.2
IHV510C45RS 15.5
IHV680C45RS 20.8
IHV750C45RS 22.6
Model Tmax
(mm)
S Maximum Terminal Spacing
(mm)
IHV130C45RS 5.8 3.8
IHV150C45RS 6.5 4.5
IHV230C45RS 8.8 6.8
IHV250C45RS 9.4 7.4
IHV275C45RS 10.1 8.1
IHV320C45RS 11.6 9.6
IHV350C45RS 12.6 10.6
IHV385C45RS 13.7 11.7
IHV420C45RS 14.8 12.8
IHV440C45RS 15.5 13.5
IHV460C45RS 16.2 14.2
IHV510C45RS 17.5 15.5
IHV680C45RS 22.8 20.8
IHV750C45RS 24.6 22.6
Tmax
Tmax
5
Square Bare
Square Epoxy CoatedModel Tmax
(mm)
S Maximum Terminal Spacing
(mm)
IHV130C40SS 5.8 4.8
IHV150C40SS 6.5 5.5
IHV230C40SS 8.8 7.8
IHV250C40SS 9.4 8.4
IHV275C40SS 10.1 9.1
IHV320C40SS 11.6 10.6
IHV350C40SS 12.6 11.6
IHV385C40SS 13.7 12.7
IHV420C40SS 14.8 13.8
IHV440C40SS 15.5 14.5
IHV460C40SS 16.2 15.2
IHV510C40SS 17.5 16.5
IHV680C40SS 22.8 21.8
IHV750C40SS 24.6 23.6
Model Tmax(mm)
IHV130B40SS 3.8
IHV150B40SS 4.5
IHV230B40SS 6.8
IHV250B40SS 7.4
IHV275B40SS 8.1
IHV320B40SS 9.6
IHV350B40SS 10.6
IHV385B40SS 11.7
IHV420B40SS 12.8
IHV440B40SS 13.5
IHV460B40SS 14.2
IHV510C40SS 15.5
IHV680C40SS 20.8
IHV750C40SS 22.6
Tmax
Tmax
IHV Series
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PartNumber
Maximum rating
Typ.VN(DC)
@1mA(DC)
(V)
Maximum rating
Typ.Cap (nF)@1kHz
VRMS,VM(AC)
(V)
VDC,VM(DC)
(V)
10/350 μs(25°C) 8/20 μs(25°C)
Iimp
(kA)Vc@Iimp
(V)WTM@Iimp
(kJ)In
(kA)Vc@In
(V)
IMAX,ITM
(kA)
IHV130N45RDIHV130M45RD 130 170 200 25 450 5 60 550 120 21
IHV150N45RDIHV150M45RD 150 200 240 25 510 6 60 600 120 17.2
IHV230N45RDIHV230M45RD 230 300 360 25 800 9 60 900 120 11.2
IHV250N45RDIHV250M45RD 250 320 390 25 850 10 60 950 120 10.4
IHV275N45RDIHV275M45RD 275 350 430 25 910 10.5 60 1030 120 8.4
IHV320N45RDIHV320M45RD 320 410 510 25 1100 12 60 1150 120 7.8
IHV350N45RDIHV350M45RD 350 450 560 25 1200 15 60 1350 120 7.4
IHV385N45RDIHV385M45RD 385 505 620 25 1350 16 60 1500 120 6.6
IHV420N45RDIHV420M45RD 420 560 680 25 1450 17 60 1600 120 6
IHV440N45RDIHV440M45RD 440 585 715 25 1540 18 60 1700 120 5.8
IHV460N45RD 460 615 750 25 1600 19 60 1800 120 5.4
IHV510N45RD 510 670 820 25 1170 21 60 1900 120 5
IHV680N45RD 680 895 1100 25 2350 30 60 2600 120 3.8
IHV750N45RD 750 970 1200 25 2550 34 60 2820 120 3.4
Specification of MOVs for Iimp = 25 kA
All specified voltages are available also as:- Non-Epoxy and Epoxy coated versions with customized different designs of the terminals- Bare disk with silver electrode and glass passivation- 12.5 kA single disk with silicone molded
NOTE :
Dual Disk
Non-Epoxy Coated
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Model Tmax
(mm)
S Maximum Terminal Spacing
(mm)
IHV130N45RD 9.0 8.0
IHV150N45RD 10.6 9.6
IHV230N45RD 15.1 14.1
IHV250N45RD 16.2 15.2
IHV275N45RD 17.7 16.7
IHV320N45RD 20.7 19.7
IHV350N45RD 21.6 20.6
IHV385N45RD 24.9 23.9
IHV420N45RD 27.2 26.2
IHV440N45RD 28.5 27.5
IHV460N45RD 29.8 28.8
IHV510N45RD 32.4 31.4
IHV680N45RD 43.0 42.0
IHV750N45RD 46.8 45.8
Specification of MOVs for Iimp = 25 kA
Tmax
IHV Series
Silicone Molded
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PartNumber
Maximum rating
Typ.VN(DC)
@1mA(DC)
(V)
Maximum rating
Typ.Cap (nF)@1kHz
VRMS,VM(AC)
(V)
VDC,VM(DC)
(V)
10/350 μs(25°C) 8/20 μs(25°C)
Iimp
(kA)Vc@Iimp
(V)WTM@Iimp
(kJ)In
(kA)Vc@In
(V)
IMAX,ITM
(kA)
IHV130N66CS 130 170 200 25 450 5 60 550 120 20.25
IHV150N66CS 150 200 240 25 510 6 60 600 120 18.11
IHV230N66CS 230 300 360 25 800 9 60 900 120 11.50
IHV250N66CS 250 320 390 25 850 10 60 950 120 11.48
IHV275N66CS 275 350 430 25 910 10.5 60 1030 120 8.91
IHV320N66CS 320 410 510 25 1100 12 60 1150 120 7.91
IHV350N66CS 350 450 560 25 1200 15 60 1350 120 7.58
IHV385N66CS 385 505 620 25 1350 16 60 1500 120 7.09
IHV420N66CS 420 560 680 25 1450 17 60 1600 120 6.98
IHV440N66CS 440 585 715 25 1540 18 60 1700 120 6.33
IHV460N66CS 460 615 750 25 1600 19 60 1800 120 5.63
IHV510N66CS 510 670 820 25 1700 21 60 1900 120 4.86
IHV680N66CS 680 895 1100 25 2350 30 60 2600 120 3.84
IHV750N66CS 750 970 1200 25 2550 34 60 2820 120 3.52
Circled Single Disk(1/2)
Specification of MOVs for Iimp = 25 kA
All specified voltages are available also as:- Non-Epoxy and Epoxy coated versions with customized different designs of the terminals- Bare disk with silver electrode and glass passivation
NOTE :
Silicone Molded9
Bare
Non-Epoxy Coated
Specification of MOVs for Iimp = 25 kA
Model Tmax
(mm)
S Maximum Terminal Spacing
(mm)
IHV130N66CS 9.0 8.0
IHV150N66CS 10.6 9.6
IHV230N66CS 15.1 14.1
IHV250N66CS 16.2 15.2
IHV275N66CS 17.7 16.7
IHV320N66CS 20.7 19.7
IHV350N66CS 21.6 20.6
IHV385N66CS 24.9 23.9
IHV420N66CS 27.2 26.2
IHV440N66CS 28.5 27.5
IHV460N66CS 29.8 28.8
IHV510N66CS 32.4 31.4
IHV680N66CS 43.0 42.0
IHV750N66CS 46.8 45.8
Model Tmax(mm)
IHV130B66CS 3.8
IHV150B66CS 4.5
IHV230B66CS 6.8
IHV250B66CS 7.4
IHV275B66CS 8.1
IHV320B66CS 9.6
IHV350B66CS 10.6
IHV385B66CS 11.7
IHV420B66CS 12.8
IHV440B66CS 13.5
IHV460B66CS 14.2
IHV510B66CS 15.5
IHV680B66CS 20.8
IHV750B66CS 22.6
Tmax
Tmax
66.0
max
66.0
max
49 ty
p
20.5
0.5
20
3
3
MOV Body
60
IHV Series
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PartNumber
Maximum rating
Typ.VN(DC)
@1mA(DC)
(V)
Maximum rating
Typ.Cap (nF)@1kHz
VRMS,VM(AC)
(V)
VDC,VM(DC)
(V)
10/350 μs(25°C) 8/20 μs(25°C)
Iimp
(kA)Vc@Iimp
(V)WTM@Iimp
(kJ)In
(kA)Vc@In
(V)
IMAX,ITM
(kA)
IHV130N91CS 130 170 200 50 500 14.8 100 900 200 41.81
IHV150N91CS 150 200 240 50 600 18.0 100 1,000 200 30.97
IHV230N91CS 230 300 360 50 800 21.5 100 1,400 200 22.31
IHV250N91CS 250 320 390 50 900 25.3 100 1,650 200 20.17
IHV275N91CS 275 350 430 50 1,100 27.2 100 1,700 200 19.24
IHV320N91CS 320 410 510 50 1,300 35.0 100 2,000 200 15.83
IHV350N91CS 350 450 560 50 1,400 38.0 100 2,200 200 14.43
IHV385N91CS 385 505 620 50 1,500 41.5 100 2,400 200 13.15
IHV420N91CS 420 560 680 50 1,600 44.0 100 2,650 200 12.34
IHV440N91CS 440 585 715 50 1,700 47.8 100 2,800 200 12.23
IHV460N91CS 460 615 750 50 1,800 51.3 100 2,960 200 11.18
IHV510N91CS 510 670 820 50 1,900 56.5 100 3,100 200 9.64
IHV680N91CS 680 895 1100 50 2,500 64.8 100 4,500 200 7.62
IHV750N91CS 750 970 1200 50 2,800 69.0 100 5,200 200 7.02
Circled Single Disk(2/2)
Specification of MOVs for Iimp = 50 kA
All specified voltages are available also as:- Non-Epoxy and Epoxy coated versions with customized different designs of the terminals- Bare disk with silver electrode and glass passivation
NOTE :
11
Bare
Non-Epoxy Coated
Specification of MOVs for Iimp = 50 kA
Model Tmax
(mm)
S Maximum Terminal Spacing
(mm)
IHV130N91CS 9.0 8.0IHV150N91CS 10.6 9.6IHV230N91CS 15.1 14.1IHV250N91CS 16.2 15.2IHV275N91CS 17.7 16.7IHV320N91CS 20.7 19.7IHV350N91CS 21.6 20.6IHV385N91CS 24.9 23.9IHV420N91CS 27.2 26.2IHV440N91CS 28.5 27.5IHV460N91CS 29.8 28.8IHV510N91CS 32.4 31.4IHV680N91CS 43.0 42.0IHV750N91CS 46.8 45.8
Model Tmax(mm)
IHV130B91CS 3.8
IHV150B91CS 4.5
IHV230B91CS 6.8
IHV250B91CS 7.4
IHV275B91CS 8.1
IHV320B91CS 9.6
IHV350B91CS 10.6
IHV385B91CS 11.7
IHV420B91CS 12.8
IHV440B91CS 13.5
IHV460B91CS 14.2
IHV510B91CS 15.5
IHV680B91CS 20.8
IHV750B91CS 22.6
Tmax
Tmax
91.0
max
91.0
max
49 ty
p
21
112
30
6
S
6
MOV Body
85
IHV Series
12
Class I High Energy Thermal Fused Varistors
IHVT Series
Features
Part number Designation
IHVT, I-Spec high energy varistor with thermal fuse and event
indication cased, is a self-protected device designed to open
in the event of overheating due to an temporary over-voltage
such as single line ground fault. It consists of a 35x46 mm
single rectangular varistor encapsulated into the silicone
elastomer with high thermal conductivity to ensure thermal
stability due to 10/350 μs high energy current. IHVT provides
an integral thermal fuse as outlined in IEC 61643-11 and UL
1449. The IHVT equipped with a low-temperature fuse near
the body to operate immediately upon overheating.
Surge Protective Device with thermal fuse designed to open in the event of overheating due to an abnormal over-voltage with large fault current.
• Fast operation and cutoff function of MOV in case of failure
• Ultra high surge current capability, 10/350 μs impulse discharge current, Iimp = 12.5 kA, 8/20 μs peak single pulse current, Imax = 60 kA.
• Two-way indicators that indicate the state of disconnection from the circuit - The Insulated 3 Micro-switch(as a Normal Open or Normal Close) terminals can be
connected to a monitoring circuit. - The color indicator provides a visual indication
IHVT 320 M 45 B
I-spec High Energy Varistorwith Thermal Fuse and Cased
Maximum AC Continuous Operation Voltage
Rated Size of Varistor Disk(mm)
Status Indicator
320 (320 Vac)
45 (35 x 46)
V (Visual)E (Electrical)B (Both Visual & Electrical)
Varistor InsulationM (Silicone Molded)
13
Plastic Housing
All specified voltages are available also as:- Silicone molded and Epoxy coated versions with customized different designs of the terminals
Electrical specification of square type MOV is same as rectangular type
PartNumber
Maximum rating Typ.VN(DC)
@1mA(DC)
(V)
Maximum ratingTyp.
Cap (nF)@1kHz
VRMS,VM(AC)
(V)
VDC,VM(DC)
(V)
10/350 μs(25°C) 8/20 μs(25°C)
Iimp
(kA)Vc@Iimp
(V)WTM@Iimp
(kJ)In
(kA)Vc@In
(V)
IMAX,ITM
(kA)IHVT130M45B 130 170 200 12.5 500 3.4 30 700 60 10.5IHVT150M45B 150 200 240 12.5 600 4.3 30 800 60 8.6IHVT230M45B 230 300 360 12.5 800 6.2 30 1,200 60 5.6IHVT250M45B 250 320 390 12.5 900 7.0 30 1,300 60 5.2IHVT275M45B 275 350 430 12.5 1,000 7.9 30 1,400 60 4.7IHVT320M45B 320 410 510 12.5 1,200 10.2 30 1,600 60 3.9IHVT350M45B 350 450 560 12.5 1,300 11.0 30 1,800 60 3.7IHVT385M45B 385 505 620 12.5 1,400 11.9 30 2,000 60 3.3IHVT420M45B 420 560 680 12.5 1,600 12.7 30 2,200 60 3IHVT440M45B 440 585 715 12.5 1,700 14.0 30 2,300 60 2.9IHVT460M45B 460 615 750 12.5 1,800 15.2 30 2,400 60 2.7IHVT510M45B 510 670 820 12.5 1,900 17.0 30 2,600 60 2.5IHVT680M45B 680 895 1100 12.5 2,500 24.3 30 3,400 60 1.9IHVT750M45B 750 970 1200 12.5 2,700 26.3 30 3,700 60 1.7
NOTE :
Rectangular
Specification of MOVs for Iimp = 12.5 kA
IHVT Series
Ø
14
Class I High Energy Thermal Fused Varistors
IHVB Series
Features
Part number Designation
IHVB, I-Spec high energy varistor with thermal fuse and
plastic housing block, is block type cased device designed
to open in the event of overheating due to an temporary
over-voltage such as single line ground fault. It consists of a
35x46 mm single rectangular varistor encapsulated into the
silicone elastomer with high thermal conductivity to ensure
thermal stability due to 10/350 μs high energy current and
provides an integral thermal fuse as outlined in IEC 61643-
11 and UL1449.
Surge Protective Device with thermal fuse designed to open in the event of overheating due to an abnormal over-voltage with large fault current.
• Fast operation and cutoff function of MOV in case of failure
• High surge current capability, 10/350 μs impulse discharge current, Iimp 12.5 kA = 8/20 μs peak single pulse current, Imax = 60 kA.
• Two-way indicators that indicate the state of disconnection from the circuit - The Insulated 3 terminals Micro-switch(as a Normal Open or Normal Close) can be connected to a monitoring circuit. - A red indicator provides a visual indication
• Current capability of block varistors without status indicator is twice that of one with a status indicator(Iimp = 25 kA, Imax = 120 kA)
IHVB 320 M 45 B D
I-spec High Energy Varistorwith Thermal Fuse and
Plastic Housing Block
Maximum AC Continuous Operation Voltage
Rated Size ofVaristor Disk(mm)
Status Indicator
Parallel Connection
320 (320 Vac)
45 (35 x 46)V (Visual)E (Electrical)B (Both Visual & Electrical)
S (Single)D (Dual)
Varistor InsulationM (Silicone Molded)
15
Specification of MOVs for Iimp = 12.5 kA
All specified voltages are available also as:- Silicone molded and Epoxy coated versions with customized different designs of the
terminals Electrical specification of square type MOV is same as rectangular type
PartNumber
Maximum rating
Typ.VN(DC)
@1mA(DC)
(V)
Maximum rating
Typ.Cap (nF)@1kHz
VRMS,VM(AC)
(V)
VDC,VM(DC)
(V)
10/350 μs(25°C) 8/20 μs(25°C)
Iimp
(kA)Vc@Iimp
(V)WTM@Iimp
(kJ)In
(kA)Vc@In
(V)
IMAX,ITM
(kA)
IHVB130M45BS 130 170 200 12.5 500 3.4 30 700 60 10.5
IHVB150M45BS 150 200 240 12.5 600 4.3 30 800 60 8.6
IHVB230M45BS 230 300 360 12.5 800 6.2 30 1,200 60 5.6
IHVB250M45BS 250 320 390 12.5 900 7.0 30 1,300 60 5.2
IHVB275M45BS 275 350 430 12.5 1,000 7.9 30 1,400 60 4.7
IHVB320M45BS 320 410 510 12.5 1,200 10.2 30 1,600 60 3.9
IHVB350M45BS 350 450 560 12.5 1,300 11.0 30 1,800 60 3.7
IHVB385M45BS 385 505 620 12.5 1,400 11.9 30 2,000 60 3.3
IHVB420M45BS 420 560 680 12.5 1,600 12.7 30 2,200 60 3
IHVB440M45BS 440 585 715 12.5 1,700 14.0 30 2,300 60 2.9
IHVB460M45BS 460 615 750 12.5 1,800 15.2 30 2,400 60 2.7
IHVB510M45BS 510 670 820 12.5 1,900 17.0 30 2,600 60 2.5
IHVB680M45BS 680 895 1100 12.5 2,500 24.3 30 3,400 60 1.9
IHVB750M45BS 750 970 1200 12.5 2,700 26.3 30 3,700 60 1.7
NOTE :
IHVB Series
Rectangular
16
Specification of MOVs for Iimp = 25 kA
All specified voltages are available also as:- Silicone molded and Epoxy coated versions with customized different designs of the terminals
Electrical specification of square type MOV is same as rectangular type
PartNumber
Maximum rating Typ.VN(DC)
@1mA(DC)
(V)
Maximum rating
Typ.Cap (nF)@1kHz
VRMS,VM(AC)
(V)
VDC,VM(DC)
(V)
10/350 μs(25°C) 8/20 μs(25°C)
Iimp
(kA)Vc@Iimp
(V)WTM@Iimp
(kJ)In
(kA)Vc@In
(V)
IMAX,ITM
(kA)IHVB130M45BD 130 170 200 25 450 5 60 550 120 21
IHVB150M45BD 150 200 240 25 510 6 60 600 120 17.2
IHVB230M45BD 230 300 360 25 800 9 60 900 120 11.2
IHVB250M45BD 250 320 390 25 850 10 60 950 120 10.4
IHVB275M45BD 275 350 430 25 910 10.5 60 1030 120 8.4
IHVB320M45BD 320 410 510 25 1100 12 60 1150 120 7.8
IHVB350M45BD 350 450 560 25 1200 15 60 1350 120 7.4
IHVB385M45BD 385 505 620 25 1350 16 60 1500 120 6.6
NOTE :
Plastic Housing
7, Paryong-ro 371beon-gil, Uichang-gu, Changwon-si, Gyeongnam, 51395, South Korea
2018. 8
T. +82-55-265-3698 F. +82-55-265-3694 www.i-spec.co.kr/eng
C O N T A C T
Jung H. Byun Sales Manager
EMI/EMC Total Solution
I-Spec Co., Ltd.
IHVB Series
