P4SMB6.8A thru P4SMBJ550CA
Surface Mount Transient Voltage Suppressors
Peak Pulse Power 400W Breakdown Voltage 6.8 to 550V
Features
• Glass passivated junction
• Moisture sensitivity: level 1, per J-STD-020
• Low profile package with built-in strain relief for surface
mounted applications
• Excellent clamping capability and Fast response time
• 400 W peak pulse power capability with a 10/1000 µs waveform
• Polarity:Uni-directional
• Halogen-free according to IEC 61249-2-21 definition
Typical Applications
Use in sensitive electronics protection against voltage transients induced by inductive load
switching and lighting on ICs, MOSFET, signal lines of sensor units for consumer, computer,
industrial, automotive and telecommunication.
Maximum Ratings (TA = 25 °C unless otherwise noted)
Value
Unit
Symbol
Parameter
Peak Pulse Power Dissipation at TA=25ºC by 10/1000μ
s Waveform (Fig.1)(Note1)(Note2)
PPPM
400
W
IPPM
PM(AV)
IFSM
Peak pulse current with a 10/1000us waveform(Note1)
See Next Table
A
Power dissipation on infinite heatsink,TA=50℃
1.0
40
W
W
Peak Forward Surge Current, 8.3ms Single Half Sine
Wave (Note3)
RΘJA
RΘJC
RΘJL
Typical Thermal Resistance Junction to Ambient
Typical Thermal Resistance Junction to Case
Typical Thermal Resistance Junction to Lead
120
25
℃/W
℃/W
℃/W
30
TJ, TSTG
Operating junction and storage temperature range
Notes:
-55 to +150
℃
1. Non-repetitive current pulse , per Fig. 3 and derated above TA = 25℃ per Fig. 2.Rating is 300W above 91V
2. Mounted on copper pad area of 0.2x0.2” (5.0 x 5.0mm) to each terminal.
3. Mounted on minimum recommended pad layout
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2021.06-Rev.A