P4KE6.8 thru P4KE400CA, e3
400 Watt Transient Voltage Suppressor
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
This 400 W Transient Voltage Suppressor (TVS) series is an economical
molded axial-leaded package to protect voltage-sensitive components from
destructive or partial degradation. They are available in both unidirectional
or bi-directional configurations as well as RoHS Compliant (annealed
matte-Tin finish) with an e3 suffix added to the part number. They have a
peak pulse power rating of 400 watts for a 10/1000 µs as depicted in
Figures 1 and 2. The nominal breakdown voltages (VBR) in this series
extend from 6.8 to 400 volts. Microsemi also offers a broad spectrum of
additional TVSs to meet your needs.
DO-41
(DO-204AL)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
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Economical series for thru-hole mounting
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Suppresses transients up to 400 watts @ 10/1000 μs
(see Figure 1)
Available in both unidirectional and bi-directional (add C
or CA suffix to part number for bidirectional)
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Protects sensitive components such as IC’s, CMOS,
Bipolar, BiCMOS, ECL, DTL, T2L, etc.
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Voltages from 6.8 to 400 V Breakdown (VBR
)
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Protection from switching transients & induced RF
Fast Response
Compliant to IEC61000-4-2 and IEC61000-4-4 for
ESD and EFT protection respectively
Optional 100% screening for avionics grade is
available by adding MA prefix to part number for added
100% temperature cycle -55oC to +125oC (10X) as well
as surge (3X) and 24 hours HTRB with post test VZ &
IR (in the operating direction for unidirectional or both
directions for bidirectional)
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Secondary lightning protection per IEC61000-4-5
with 42 Ohms source impedance:
Class 1: P4KE5.0 to P4KE91A or CA
Class 2: P4KE5.0 to P4KE47A or CA
Class 3: P4KE5.0 to P4KE24A or CA
Class 4: P4KE5.0 to P4KE12A or CA
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Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, or JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers
Secondary lightning protection per IEC61000-4-5
with 12 Ohms source impedance:
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RoHS Compliant devices avaialbe by adding “e3” suffix
Class 1: P4KE5.0 to P4KE30A or CA
Class 2: P4KE5.0 to P4KE15A or CA
Surface mount equivalents available as SMAJP4KE6.8
to SMAJP4KE400CA
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Moisture classification is Level 1 with no dry pack
required per IPC/JEDEC J-STD-020B
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
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Operating and Storage Temperature: -65°C to +150°C
Peak Pulse Power: 400 Watts at 10/1000 μs (see Figure
1, 2 and 3 for tW, waveform and derating effects)
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CASE: Void-free transfer molded thermosetting
epoxy body meeting UL94V-0
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FINISH: Tin-Lead or RoHS Compliant annealed
matte-Tin plating readily solderable per MIL-STD-
750, method 2026
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Impulse repetition rate (duty factor): 0.01%
Thermal Resistance: 50°C/W junction to leads @ 3/8
inch (10 mm) from body, or 110°C/W junction to ambient
when mounted on FR4 PC board with 4 mm2 copper
pads (1oz) and track width 1 mm, length 25 mm
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MARKING: Body marked with part number
POLARITY: Band denotes cathode. Bidirectional
not marked
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WEIGHT: 0.3 grams (approximate)
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Steady-State Power: 2.5 Watts @ TL=25°C at 3/8 inch
(10 mm) from body, or 1.13 W at TA = 25ºC on FR4 PC
board described for thermal resistance
TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
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Forward Voltage at 25°C: 3.5 V @ 30 A with 8.3 ms half-
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See package dimensions on last page
sine wave (unidirectional only)
Solder temperatures: 260 °C for 10 s (maximum)
Copyright © 2005
8-04-2005 REV C
Microsemi
Page 1
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503