V12MLA0805LA Littelfuse Inc, V12MLA0805LA Datasheet - Page 5

• Manufacturer Part Number: V12MLA0805LA
• Description: VARISTOR TVS MULTI 12V 40A 0805
• Manufacturer: Littelfuse Inc
• Series: MLr

Specifications of V12MLA0805LA

• Varistor Voltage: 18.5V
• Current-surge: 40A
• Number Of Circuits: 1
• Maximum Ac Volts: 9VAC
• Maximum Dc Volts: 12VDC
• Energy: 0.10J
• Package / Case: 0805 (2012 Metric)
• Suppressor Type: Transient Voltage
• Peak Surge Current @ 8/20µs: 40A
• Varistor Case: 0805
• Clamping Voltage Vc Max: 29V
• Peak Energy (10/1000us): 0.1J
• Voltage Rating Vdc: 12V
• Voltage Rating Vac: 9V
• Voltage Rating Dc: 12 V
• Voltage Rating Ac: 9 V
• Clamping Voltage: 29 V
• Peak Surge Current: 40 A
• Surge Energy Rating: 0.1 J
• Capacitance: 410 pF
• Operating Temperature Range: - 55 C to + 125 C
• Mounting: SMD/SMT
• Dimensions: 2.01 mm L
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free by exemption / RoHS Compliant

©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ML.html or MLA.html for current information.
The Multilayer Suppressor is a leadless device. Its response
time is not limited by the parasitic lead inductances found
in other surface mount packages. The response time of
the Z
ESD. Additionally, in "real world" applications, the associated
circuit wiring is often the greatest factor effecting speed of
response. Therefore, transient suppressor placement within
a circuit can be considered important in certain instances.
Device Characteristics
At low current levels, the V-I curve of the multilayer
transient voltage suppressor approaches a linear (ohmic)
relationship and shows a temperature dependent effect.
Speed of Response
Figure 10
Figure 8
TERMINATION
100%
METAL END
10%
1E
-9
FIRED CERAMIC
DIELECTRIC
1E
Multilayer Internal Construction
-8
25
o
50
DEPLETION
DEPLETION
o
1E
REGION
REGION
75
-7
o
SUPPRESSOR CURRENT (A
100
o
1E
125
-6
o
C
1E
-5
μ
DC
GRAINS
1E
)
Varistor Products
-4
Surface Mount Multilayer Varistors (MLVs) > MLA Automotive Series
METAL
ELECTRODES
6
Ω at its
1E
-3
1E
Revision: December 16, 2010
μA.
-2
Clamping Voltage Over Temperature (V
Figure 11
Energy Absorption/Peak Current Capability
Energy dissipated within the MLA Automotive Series is
calculated by multiplying the clamping voltage, transient
current and transient duration. An important advantage of
the multilayer is its interdigitated electrode construction
within the mass of dielectric material. This results in
grains combine to absorb and distribute transient energy
reliability.
As a measure of the device capability in energy and peak
current handling, the V26MLA1206 part was tested with
the end of the test,10,000 pulses later, the device voltage
characteristics are still well within specification.
Figure 9
100
10
100
0
10
PEAK CURRENT = 150A
8/20 s DURATION, 30s BETWEEN PULSES
-60
-40
2000
-20
4000
0
TEMPERATURE (
NUMBER OF PULSES
20
6000
40
60
o
C)
C
MLA Automotive Varistor Series
8000
at 10A)
V26MLA1206
V5.5MLA1206
80
V26MLA1206
100
10000
120
140
μs). At
12000