P4SMA SERIES
SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSORS
REVERSE VOLTAGE:
6.8 to 440 VOLTS
PEAK PULSE POWER:
400 WATTS
FEATURES
· Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
· 400W peak pulse power capability on 10/1000µs
waveform, repetition rate (duty cycle): 0.01%
· Excellent clamping capability
· Low incremental surge resistance
· Very fast response time
MECHANICAL DATA
Case: Molded plastic, DO-214AC(SMA)
Terminals: Axial leads, solderable per MIL-STD-750,
method 2026 guaranteed
Polarity: Color band denotes cathode except bipolar
Packaging: 12mm tape per EIA STD RS-481
Weight: 0.002 ounce, 0.064 gram
DO-214AC(SMA)
(25.4) 1.0
MIN
(9.5) .375
(7.2) .285
(25.4) 1.0
MIN
.210 (5.3)
.190 (4.8)
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Ratings at 25℃ ambient temperature unless otherwise specified.
Single phase, half wave, 60HZ, resistive or inductive load.
For capacitive load, derate current by 20%.
Peak power dissipation with a 10/1000µs waveform (Note 1 , 2) (Fig. 1)
Peak pulse current with a 10/1000µs waveform (Note 1) (Fig. 3)
Power dissipation on infinite heatsink, TA = 50°C
Peak forward surge current, 8.3ms
single half sine-wave unidirectional only (Note 2)
Maximum instantaneous forward voltage
at 25A for unidirectional only (Note 4)
Thermal resistance junction to leads
Thermal resistance junction to ambient air (Note 3)
Operating junction and storage temperature range
Symbols
PPPM
IPPM
PM(AV)
IFSM
VF
RθJL
RθJA
TJ，Tstg
Limit
Minimum 400
See Next Table
1.0
40
3.5/6.5
30
120
–55 to +150
NOTES:
1- Non-repetitive current pulse, per Fig. 3 and derated above TA = 25°C per Fig. 2. Rating is 300W above 91V.
2- Mounted on 0.2 x 0.2” (5.0 x 5.0mm) copper pads to each terminal
3- Mounted on minimum recommended pad layout
4- VF = 3.5V for P4SMA200(A) & below; VF = 6.5V for P4SMA220(A) & above
Devices for Bidirectional Applications:
1- For bi-directional, use C or CA suffix for types P4SMA6.8 thru types P4SMA440A(e.g. P4SMA6.8C, P4SMA440CA).
2- Electrical characteristics apply in both directions.
Units
Watts
Amp
Watts
Amp
Volts
℃/W
℃/W
℃
