Document
SVC Varistors Type
Introduction
SVC series Varistors are gapless ceramic surge absorbers of a new type made of metal oxide which is designed to protect various kinds of electronic devices and semiconducting elements from surges.
DISC Ceramic Capacitors
F
Features
High discharge current capability up to 4000 Amps. Excellent clamping characteristics. Fast response time under 50 nanesesconds. Improve Product safety UL, CSA, VDE recognized special specification like a Automobile, Medical, Military, Aviation should be discuss with our sales representatives
How to Order
SVC 471 D-14A FF 7
ZnO Varistor
(The first two digit indicate significaticant digits) (The 3rd digit indicate the number of zeros following)
D : Disk Type Varistor
05 : 10 :
5mm, 07 : 10mm, 14 :
7mm, 14mm,
A : High Voltage(82V and above) B : Low Voltage(less then 68V)
20 : 20mm
Packing Style
S Taping Type Flat Pack K F
Lead Variation
Straight Type In-Kink Type Out-Kink Type B
Packing Style
S W Bulk K L N
Lead Variation
Straight Long Type Kink Short Type Kink Long Type Kink Short Type Straight Short Type
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SAMWHA CAPACITOR Co., Ltd.
SVC Varistors Type
Taping Type Code
5 7 8 9 1
Bulk Type Pitch of Component(mm)
12.7 15.0 30.0 25.4 30.0
Lead Spacing(mm)
5.0 7.5 7.5 7.5 10.0
Code
5 7 1
Lead Spacing(mm)
5.0 7.5 10.0
SVC Characteristic Curves
Small - current region of V - curve Temporary power frequency over voltage capability
Withstand discharge impulse current characteristics(Typical)
Withstand discharge impulse current characteristics(Typical)
DISC Ceramic Capacitors
Specification
Maximum Ratings Applied Voltage Chip Element RMS DC Size 50/60Hz (25 ) (25 ) Dia (mm)
SVC 180D-05B SVC 180D-07B SVC 180D-10B 5 7 10 14 20 5 7 10 14 20 5 7 10 14 20 5 7 10 14 20 5 7 10 14 20 5 7 10 14 20 5 7 10 14 20 5 7 10 14 20 5 7 10 14 20 5 7 10 14 20 60 85 50 65 40 56 35 45 30 38 25 31 20 26 17 22 14 18 11 14
Characteristics Nominal Varistor Peak Voltage Vnom (Volts) Tolerance Min.(Volts) Max.(Volts) Max. Clamping Voltage @ Test Current(8/20 ) Vc (Volts)
40 36 18 16 20 36 36 36 48 43 22 20 24 43 43 43 60 53 27 24 30 53 54 53 73 65 33 30 36 65 65 65 86 77 39 35 43 77 77 77 104 93 47 42 52 93 93 93 123 110 56 50 62 110 110 110 150 135 68 61 75 135 135 135 145 135 82 74 90 135 135 135 175 165 100 90 110 165 165 165
Transient Energy Wtm (Joules)
0.3 0.8 1.5 3.5 10.0 0.4 0.9 2.0 4.0 13.0 0.5 1.0 2.5 5.0 15.0 0.6 1.2 3.0 6.0 20.0 0.8 1.5 3.5 7.0 24.0 1.0 1.8 4.5 8.5 30.0 1.0 2.2 5.5 10.5 35.0 1.2 2.5 6.5 12.0 40.0 1.7 3.5 8.0 14.0 27.0 2.0 4.0 10.0 18.0 30.0
Device Type
Average Peak Current Power Dissipation (8/20 ) Ptam (Watts)
0.01 0.02 0.05 0.1 0.2 0.01 0.02 0.05 0.1 0.2 0.01 0.02 0.05 0.1 0.2 0.01 0.02 0.05 0.1 0.2 0.01 0.02 0.05 0.1 0.2 0.01 0.02 0.05 0.1 0.2 0.01 0.02 0.05 0.1 0.2 0.01 0.02 0.05 0.1 0.2 0.1 0.25 0.4 0.6 1.0 0.1 0.25 0.4 0.6 1.0
Vacm (Volts)
Vdcm (Volts)
Itm (Amps)
125 250 500 1000 2000 125 250 500 1000 2000 125 250 500 1000 2000 125.