ZINC OXIDE VARISTOR
Zinc Oxide Varistor are non-linear resistors utilizing semiconductor electronic
ceramic element mainly composed of zinc oxide and its non-linear resistance change
as a function of the applied voltage .It
s called Varistor or Surge absorbers.
Element
FEATURES
( 18 V~1.8 KV )
(
25 ns )
Electrode
Widely voltage range 18 V~1.8 KV
Fast response to the rapidly increase Voltage (
Excellent non-linearity coefficient
Symmetric V - l characteristics
Leads
2
25 ns )
Solder
( 2000A/cm )
2
Great withstanding surge current ( 2000A/cm )
No follow-on current
Long life
Epoxy
coating
ROHS REACH
Meet ROHS, REACH, HF requirements of environmental protection
HOW TO ORDER
F
NR
10
K
471
B
A
S
(V)
Fenghua
Advanced
Non
Linear
Element
Diameter
05
07
10
14
20
5mm
7mm
10mm
14mm
20mm
Tolerance
K
10%
Nominal
Varistor
Voltage
820=82 10
471=47 10
1
102=10 10
2
0
Packaging
Resistor
Lead
Type
A
B
Staight
Outward
Crimp
Inward
Crimp
Y
Y-crimp
S
Lead
Length
Long
B
T
Bulk
Tape
Style
C Trimmed
F
T
Tape
Style
Y
CHARACTERISTIC CURVE
pre breakdown nomal operating
region
region
10
3
upturn
region
VOLTAGE(V)
=10
12~13
cm
1=kv
=1-10
cm
10
2
10
-6
-4
-3
-2
10
-8
10 10 10 10 10 10 10
-7
-5
-1
2
3
4
5
1 10 10 10 10 10
Current(A)
Fig1
Voltage Current Characteristic
178