V48MLA1210NHAUTO Littelfuse Inc, V48MLA1210NHAUTO Datasheet - Page 6

• Manufacturer Part Number: V48MLA1210NHAUTO
• Description: VARISTOR TVS MULTI 48V 250A 1210
• Manufacturer: Littelfuse Inc

Specifications of V48MLA1210NHAUTO

• Package / Case: 1210 (3225 Metric)
• Varistor Voltage: 66.5V
• Current-surge: 250A
• Number Of Circuits: 1
• Maximum Ac Volts: 40VAC
• Maximum Dc Volts: 48VDC
• Energy: 1.2J
• Voltage Rating Dc: 48 V
• Voltage Rating Ac: 40 V
• Clamping Voltage: 105 V
• Peak Surge Current: 250 A
• Surge Energy Rating: 1.2 J
• Capacitance: 520 pF
• Operating Temperature Range: - 55 C to + 125 C
• Mounting: SMD/SMT
• Dimensions: 2.54 mm W x 3.2 mm L x 2.87 mm H
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

MLA Automotive Varistor Series
Surface Mount Multilayer Varistors (MLVs) > MLA Automotive Series
Lead (Pb) Soldering Recommendations
and Wave soldering. Typical profiles are shown on the right.
The recommended solder for the MLA Automotive Series
Wave soldering is the most strenuous of the processes.
To avoid the possibility of generating stresses due to
thermal shock, a preheat stage in the soldering process
is recommended, and the peak temperature of the solder
process should be rigidly controlled.
When using a reflow process, care should be taken
to ensure that the MLA Automotive Series chip is not
subjected to a thermal gradient steeper than 4 degrees
During the soldering process, preheating to within 100
degrees of the solder's peak temperature is essential to
minimize thermal shock.
still necessary to ensure that any further thermal shocks
printed circuit boards being removed from the solder
process and subjected to cleaning solvents at room
temperature. The boards must be allowed to cool gradually
Lead–free (Pb-free) Soldering Recommendations
optimum Lead–free solder performance, consisting of a
on Silver base metal.
compatible.
evaluation purposes by Littelfuse, based upon industry
standards and practices. There are multiple choices of all
optimum combination for their process as processes vary
considerably from site to site.
Revision: December 16, 2010
Varistor Products
Figure 12
Figure 13
Figure 14
Reflow Solder Profile
Wave Solder Profile
Lead–free Re-flow Solder Profile
300
250
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100
250
200
150
100
150
300
250
200
150
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Please refer to www.littelfuse.com/series/ML.html or MLA.html for current information.
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0
0.0
0
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0.5
0.5
MAXIMUM TEMPERATURE 260˚C,
TIME WITHIN 5˚C OF PEAK
20 SECONDS MAXIMUM
1.0
PREHEAT ZONE
PREHEAT ZONE
1.0
1.0
PREHEAT DWELL
FIRST PREHEAT
2.0
MAXIMUM TEMPERATURE
1.5
1.5
TIME (MINUTES)
TIME (MINUTES)
MAXIMUM WAVE 260°C
TIME (MINUTES)
RAMP RATE
<3˚C/s
3.0
2.0
Specifications are subject to change without notice.
230°C
2.0
SECOND PREHEAT
RAMP RATE
<2°C/s
2.5
4.0
2.5
ABOVE 183°C
SECONDS
3.0
40-80
5.0
60 - 150 SEC
3.0
> 217˚C
3.5
6.0
3.5
©2010 Littelfuse, Inc.
4.0
4.0
4.5
7.0