Chip Varistors
Countermeasure for surge voltage and static electricity
AVR series
Type:
AVR-M
AVRL
Issue date:
September 2011
• All specifications are subject to change without notice.
• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
(2/10)
FEATURES
• No polarity, due to symmetrical current-voltage characteristics.
Equivalent to anode common type Zener diode.
• Excellent electrostatic absorption capability.
Response is as good or better than Zener diode.
Keeps symmetrical current-voltage characteristics even after
electrostatic absorption.
• Adopted the inner electrodes lamination structure.
Wide range of varistor voltages are available in series (6.8 to
39V).
Low capacitance items are available in series (1.1pF to).
World’s smallest 0603-, 1005-, 1608-, 2012-chip types and
1410-array type are available in series.
• Excellent mount reliability. Good for Pb-free soldering.
Adopted (Ni/Sn) electroplating.
Achieved good solderability and solder heat resistance.
• Can replace a Zener diode + capacitor combination.
Reduced footprint and total mounting cost.
INTERNAL STRUCTURE
Inner electrode
Varistor body
(Palladium) (Zinc Oxide: ZnO semiconductor ceramics)
Sn plating
Ag termination
underlayer
Ni plating
CIRCUITS
SINGLE TYPE
ARRAY TYPE
OPERATIONAL VOLTAGE RANGES
0603 type
7.5
1005 type
APPLICATIONS
• Electrostatic absorption
• Pulse noise absorption
19
28
1608 type
2012 type
28
1410 type
0
16
5
10
15
20
Circuit voltage(V)
TEMPERATURE RANGES
Type
Operating
Storage
AVR-M1005/1608/2012
–40 to +125°C
–40 to +125°C
AVR-M14A2/0603/AVRL
–40 to +85°C
–40 to +85°C
Mobile phone
Digital video camera
Digital camera
PDA
Note PC
DVD-ROM, CD-ROM
CD/MD/MP3 player
Game machine
In-car equipment
Application
Data terminal
LCD panel
Touch panel
Button and switch unit
Battery terminal
Audio-Video input-output terminal
Microphone/receiver unit
Controller unit
CAN-BUS
ECU
Connector
Air conditioner panel
Car audio
Car navigation
30
RECOMMENDED REFLOW SOLDERING CONDITIONS
APPLICATION EXAMPLES
Consumer product
25
10s max.
260˚C max.
250˚C
220˚C
Natural
cooling
180˚C
150˚C
Preheating
60 to 120s
Soldering
60s max.
Time(s)
• All specifications are subject to change without notice.
001-07 / 20110926 / e9c11_avr.fm
