POWERMITE
®

Low Profile 1500 Watt
Transient Voltage Suppressor


SCOTTSDALE DIVISION

3PMT5.0A thru 3PMT170A
W
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3PMT


DESCRIPTION

APPEARANCE

These 1500 watt transient voltage suppressors offer power-handling capabilities
only found in larger packages. They are most often used for protecting against
transients from inductive switching environments or induced secondary lightning
effects as found in lower surge levels of IEC61000-4-5. With very fast response
times, they are also effective in protection from ESD or EFT. Powermite
®
package
features include a full metallic bottom that eliminates the possibility of solder-flux
entrapment during assembly. They also provide unique locking tab acting as an
integral heat sink. With its very short terminations, parasitic inductance is minimized
to reduce voltage overshoots during fast-rise-time transients.




IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com


FEATURES

APPLICATIONS / BENEFITS
• Very low profile surface mount package (1.1mm)
• Integral heat sink-locking tabs
• Compatible with automatic insertion equipment
• Full metallic bottom eliminates flux entrapment
• Voltage range 5 volts to 170 volts
• Available in both unidirectional or bi-directional
(C suffix for bi-directional)
• Secondary lightning transient protection
• Inductive switching transient protection
• Small footprint
• Very low parasitic inductance for minimal
voltage overshoot
• Compliant to IEC61000-4-2 and IEC61000-4-4 for
ESD and EFT protection respectively and
IEC61000-4-5 for surge levels defined herein


MAXIMUM RATINGS

MECHANICAL AND PACKAGING
• Operating Temperature: -55°C to +150°C
• Storage Temperature: -55°C to +150°C
• 1500 Watt peak pulse power (10 / 1000 µsec.)
• Forward Surge Current: 200 Amps at 8.3 ms
(excluding bidirectional)
• Repetition surge rate (duty factor): 0.01%
• Thermal resistance: 2.5°C / watt junction to tab
130°C / watt junction to ambient with
recommended footprint
• Lead and mounting temperature: 260°C for 10 sec
• Terminals tin-lead plated
• Two-leads on side internally connected together
• Cathode designated with band (unidirectional)
• Body marked with P/N without 3PMT prefix
(ie. 5.0A, 5.0CA, 12A, 12CA, 170A, 170CA, etc.)
• Molded epoxy package meets UL94V-0
• Weight: 0.072 grams (approximate)
• Tape & Reel packaging per EIA-481-2
(16 mm - 6000 units/reel)



ELECTRICAL CHARACTERISTICS



MICROSEMI
PART NUMBER

STANDOFF
VOLTAGE
V
WM

VOLTS

BREAKDOWN
VOLTAGE
V
BR

@1 mA

VOLTS
MIN
CLAMPING
VOLTAGE
V
C

@ I
PP

(FIGURE 4)
VOLTS
MAX
PEAK PULSE
CURRENT
I
PP


(FIGURE 4)
AMPS

STANDBY
CURRENT
I
D

@ V
WM

µA
MAX
TEMPERATURE
COEFFICIENT
OF V
BR

α
V(BR)
%/°C
MAX
3PMT5.0A 5 6.40 9.2 163.0 1000 .057
3PMT6.0A 6 6.67 10.3 145.6 1000 .059
3PMT6.5A 6.5 7.22 11.2 133.9 500 .061
3PMT7.0A 7 7.78 12.0 125.0 200 .065
3PMT7.5A 7.5 8.33 12.9 116.3 100 .067
3PMT8.0A 8 8.89 13.6 110.3 50 .070
3PMT8.5A 8.5 9.94 14.4 104.2 25 .073
3PMT9.0A 9.0 10.0 15.4 97.4 10 .076
3PMT10A 10 11.1 17.0 88.2 5 .078
3PMT11A 11 12.2 18.2 82.4 5 .081
3PMT12A 12 13.3 19.9 75.3 5 .082

Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

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Copyright  2003
12-6-2002 REV A