THERMAL SENSORS / CIRCUIT PROTECTORS
TECHNOLOGY OF TOMORROW
CIRCUIT PROTECTORS
DISK TYPE VARISTORS
PEAK CURRENT
NV D_U
STRUCTURE
1
2
3
4
Disk of zinc oxide grains
Electrodes
Lead wire
Epoxy resin overcoating
(UL94V-0)
IDENTIFICATION
PRODUCT CODE
COATING COLOR
NV D_U
MARKING
Black, Alpha Numeric
(Abbreviation of P/N
and Production Lot No.)
Dark Green
TYPE DESIGNATION (HOW TO ORDER)
Sn/Pb Part No.
270
NV
D
10
UB
*
TB2
D
PRODUCT CODE
VARISTOR
VOLTAGE
Unit: V
Below 100V: 3 digits
22V –> 022
Above 100V: real number
1800V –> 1800
10
UB
C
MHT
DISC TYPE
DISC DIAMETER
U-SERIES
07 = 7mm
05, 07, 10,
14, 20
U = Power up
S = Standard
UB = Power up type
(5mm pitch)
TERMINATION
SURFACE
MATERIAL
TAPING &
FORMING
FEATURES
■ Varistors own two-way symmetries and can absorb positive and
negative surges
■ Able to withstand high current and high energy handling capability
■ Wide operating voltage range
■ Ideal for use as countermeasure for inductive lightning surges of
equipment which is connected to DC and AC lines
■ Absorption of surge voltages from inductive load of motors, relays etc.
and protection of semiconductor elements from excessive voltage
■ Flame retardant epoxy resin overcoating (UL94 V-0)
■ Products (82V or over) of this series are recognized
by UL1449 (File No. E79023)
■ Products (200V or over) of this series are recognized
by UL1414 (File No. E123805)
■ Storage temperature range: -40°C…+125°C
■ Operating temperature range: -40°C…+85°C
A
PACKAGING
A: Ammo
‘Blank’: Bulk
C: SnCu
*Please see “PACKAGING”
270
VARISTOR
VOLTAGE
Unit: V
Below 100V: 3 digits
22V –> 022
Above 100V: real number
1800V –> 1800
DIMENSIONS (mm)
TYPE
ø D max.*
(DISK ø)
D 05 U
7 or 7.5
D 07 U
9 or 9.5
D 10 U
12 to 13.5
D 10 UB
12
D 14 U
16 to 17
D 20 U
23 to 24
H max.*
T max.*
F
W*
ød
l
10 or 10.5
12 or 12.5
15 to 16.5
15
20.5 to 21.5
24.5 or 22.5
4.3 to 5.9
4.3 to 5.9
4.3 to 14.4
4.3 to 5.3
4.3 to 14.4
5.8 to 10.8
5±1
5±1
7.5 ± 1
5±1
7.5 ± 1
10 ± 1
1.4 to 2.4
1.0 to 2.4
1.0 to 1.1
1.0 to 2.3
1.0 to 11.6
2.1 to 5.9
0.6
0.6
0.8
0.6
0.8
1.0
30 min.
* Dimensions vary according to the varistor voltage.
RATING
THERMAL SENSORS
CIRCUIT PROTECTORS
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
Pb-free Part No.
NV
■ Enter disc diameter
*2 Manufacturing range of NVD10UBC is varistor voltages 22…270. *3 NVD14C100 is applied.
Use the varistor within the specified values as there is a risk of destruction of the varistor when the impulse power over the maximum energy is applied.
EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de
Revision: 5. Nov. 2004
THERMAL SENSORS / CIRCUIT PROTECTORS
TECHNOLOGY OF TOMORROW
CIRCUIT PROTECTORS, DISK TYPE VARISTORS, PEAK CURRENT, NV D_U
CHARACTERISTICS (Ta = +25°C)
VOLTAGE vs. CURRENT (NVD14: 82V…1800V)
VOLTAGE vs. CURRENT (NVD20UC: 200V…470V)
VOLTAGE vs. CURRENT (NVD20UC: 620V…910V)
THERMAL SENSORS
CIRCUIT PROTECTORS
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
VOLTAGE vs. CURRENT (NVD14UC: 22V…68V)
EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de
Revision: 5. Nov. 2004
