TVS Diodes Datasheet
© 2022 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 02/22/22
1
P4SMA Series
Surface Mount – 400W
Description
Agency Approvals
Features
■ 400W peak pulse power
capability at 10/1000µs
waveform, repetition rate (duty
cycles):0.01%
■ Excellent clamping capability
■ Low incremental surge
resistance
■ Typical IR less than 1μA when
V
BR
min>12V
■ Optimized surface mount
footprint for minimal PCB
space impact
■ Low profile package
■ Typical failure mode due to
exceeding maximum ratings is
a short circuit condition
■ Whisker test conducted based
on Table 4a and 4c of JEDEC
JESD201A
■ IEC 61000-4-2 ESD 30kV(Air),
30kV (Contact)
■ EFT protection of data lines in
accordance with IEC 61000-
4-4
■ Built-in strain relief
■ Fast response time: typically
less than 1.0ps from 0V to BV
min
■ High temperature to reflow
soldering guaranteed:
260°C/40sec
■ V
BR
@ T
J
= V
BR
@25°C x (1+αT
x (T
J
- 25))(αT:Temperature
Coefficient, typical value is
0.1%)
■ UL Recognized epoxy meeting
flammability classification V-0
■ Meet MSL level1, per
J-STD-020, LF maximun peak
of 260°C
■ Matte tin lead–free Plated
■ Halogen-free and RoHS
compliant
■ Pb-free E3 means 2nd level
interconnect is Pb-free and
the terminal finish material is
tin(Sn) (IPC/JEDEC J-STD-
609A.01)
Applications
TVS devices are ideal for the protection of I/O Interfaces, VCC
bus and other vulnerable circuits used in Telecom, Computer,
Industrial and Consumer electronic applications.
The P4SMA series is designed specifically to protect sensitive
electronic equipment from voltage transients induced by lightning
and other transient voltage events.
Maximum Ratings and Thermal Characteristics
(T
A
=25
O
C unless otherwise noted)
Parameter Symbol Value Unit
Peak Pulse Power Dissipation at T
A
=25°C
by 10/1000us Waveform(Fig.2)(Note 1),
(Note 2)Single Die Parts
P
PPM
400 W
Peak Pulse Power Dissipation at TA=25°C
by 10/1000us Waveform(Fig.2)(Note 1),
(Note 2) Stacked Die Parts(Note 5)
P
PPM
600 W
Power Dissipation on Infinite Heat Sink at
T
L
=50
O
C
P
D
3.3 W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave (Note 3)
I
FSM
60 A
Maximum Instantaneous Forward Voltage
at 25A for Unidirectional Only (Note 4)
V
F
3.5/5.0 V
Operating Temperature Range T
J
-65 to 150 °C
Storage Temperature Range T
STG
-65 to 175 °C
Typical Thermal Resistance Junction to
Lead
R
θJL
30 °C/W
Typical Thermal Resistance Junction to
Ambient
R
θJA
120 °C/W
Agency Agency File Number
E230531
Functional Diagram
Bi-directional
Uni-directional
Cathode
Anode
Uni-directional
Bi-directional
RoHS
Pb
e3
Notes:
1. Non-repetitive current pulse, per Fig.4 and derated above T
J
(initial) =25ºC per Fig. 3.
2. Mounted on 5.0x5.0mm copper pad to each terminal.
3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only.
4. V
F
< 3.5V for single die parts and V
F
< 5.0V for stacked-die parts.
5. For stacked die component details, please refer to part numbers labeled by * in Electrical Characteristics.
Resources Accessories Samples
Additional Information
TVS Diodes Datasheet
© 2022 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 02/22/22
2
P4SMA Series
Surface Mount – 400W
Electrical Characteristics (T
A
=25°C unless otherwise noted)
Part
Number
(Uni)
Part
Number
(Bi)
Marking
Reverse
Stand off
Voltage V
R
(Volts)
Breakdown
Voltage V
BR
(Volts) @ I
T
Test
Current
I
T
(mA)
Maximum
Clamping
Voltage V
C
@ I
pp
(V)
Maximum
Peak Pulse
Current I
pp
(A)
Maximum
Reverse
Leakage I
R
@ V
R
(µA)
Maximum
Temperature
Coefficient of
V
BR
(%/C)
Agency
Approval
Uni Bi Min Max
P4SMA6.8A P4SMA6.8CA 6V8A 6V8C 5.80 6.45 7. 1 4 10 10.5 39.0 1000 0.041 X
P4SMA7.5A P4SMA7.5CA 7V5A 7V5C 6.40 7. 1 3 7.88 10 11. 3 36.3 500 0.052 X
P4SMA8.2A P4SMA8.2CA 8V2A 8V2C 7.02 7.79 8.61 10 12.1 33.9 200 0.058 X
P4SMA9.1A P4SMA9.1CA 9V1A 9V1C 7.78 8.65 9.55 1 13.4 30.6 50 0.063 X
P4SMA10A P4SMA10CA 10A 10C 8.55 9.50 10.50 1 14.5 28.3 10 0.066 X
P4SMA11A P4SMA11CA 11 A 11C 9.40 10.50 11.60 1 15.6 26.3 5 0.069 X
P4SMA12A P4SMA12CA 12A 12C 10.20 11.40 12.60 1 16.7 24.6 5 0.071 X
P4SMA13A P4SMA13CA 13A 13C 11. 10 12.40 13.70 1 18.2 22.5 1 0.074 X
P4SMA15A P4SMA15CA 15A 15C 12.80 14.30 15.80 1 21.2 19.3 1 0.076 X
P4SMA16A P4SMA16CA 16A 16C 13.60 15.20 16.80 1 22.5 18.2 1 0.080 X
P4SMA18A P4SMA18CA 18A 18C 15.30 1 7. 10 18.90 1 25.5 16.1 1 0.083 X
P4SMA20A P4SMA20CA 20A 20C 1 7. 10 19.00 21.00 1 27.7 14.8 1 0.085 X
P4SMA22A P4SMA22CA 22A 22C 18.80 20.90 23.10 1 30.6 13.4 1 0.088 X
P4SMA24A P4SMA24CA 24A 24C 20.50 22.80 25.20 1 33.2 12.3 1 0.091 X
P4SMA27A P4SMA27CA 27A 27C 23.10 25.70 28.40 1 37.5 10.9 1 0.092 X
P4SMA30A P4SMA30CA 30A 30C 25.60 28.50 31.50 1 41.4 9.9 1 0.093 X
P4SMA33A P4SMA33CA 33A 33C 28.20 31.40 34.70 1 45.7 9.0 1 0.094 X
P4SMA36A P4SMA36CA 36A 36C 30.80 34.20 37.80 1 49.9 8.2 1 0.096 X
P4SMA39A P4SMA39CA 39A 39C 33.30 37.10 41.00 1 53.9 7.6 1 0.097 X
P4SMA43A P4SMA43CA 43A 43C 36.80 40.90 45.20 1 59.3 6.9 1 0.098 X
P4SMA47A P4SMA47CA 47A 47C 40.20 44.70 49.40 1 64.8 6.3 1 0.099 X
P4SMA51A P4SMA51CA 51A 51C 43.60 48.50 53.60 1 70.1 5.8 1 0.100 X
P4SMA56A P4SMA56CA 56A 56C 47.80 53.20 58.80 1 77.0 5.3 1 0.101 X
P4SMA62A P4SMA62CA 62A 62C 53.00 58.90 65.10 1 85.0 4.8 1 0.102 X
P4SMA68A P4SMA68CA 68A 68C 58.10 64.60 71.40 1 92.0 4.5 1 0.103 X
P4SMA75A P4SMA75CA 75A 75C 64.10 71.30 78.80 1 103.0 4.0 1 0.104 X
P4SMA82A P4SMA82CA 82A 82C 70.10 77.90 86.10 1 113.0 3.6 1 0.105 X
P4SMA91A P4SMA91CA 91A 91C 77.80 86.50 95.50 1 125.0 3.3 1 0.106 X
P4SMA100A P4SMA100CA 100A 100C 85.50 95.00 105.00 1 137.0 3.0 1 0.106 X
P4SMA110A P4SMA110CA 110A 110 C 94.00 105.00 116.00 1 152.0 2.7 1 0.107 X
P4SMA120A P4SMA120CA 120A 120C 102.00 114.00
126.00 1 165.0 2.5 1 0.107 X
P4SMA130A P4SMA130CA 130A 130C 111. 00 124.00 137.00 1 179.0 2.3 1 0.107 X
P4SMA150A P4SMA150CA 150A 150C 128.00 143.00 158.00 1 207.0 2.0 1 0.108 X
P4SMA160A P4SMA160CA 160A 160C 136.00 152.00 168.00 1 219.0 1.9 1 0.108 X
P4SMA170A P4SMA170CA 170A 170C 145.00 162.00 179.00 1 234.0 1.8 1 0.108 X
P4SMA180A P4SMA180CA 180A 180C 154.00 171.00 189.00 1 246.0 1.7 1 0.108 X
P4SMA200A P4SMA200CA 200A 200C 171.00 190.00 210.00 1 274.0 1.5 1 0.108 X
P4SMA220A P4SMA220CA 220A 220C 185.00 209.00 231.00 1 328.0 1.3 1 0.110 X
P4SMA250A - 250A - 214.00 237.00 263.00 1 344.0 1.2 1 0.110 X
- P4SMA250CA* - 250C 214.00 237.00 263.00 1 344.0 1. 8 1 0.110 X
P4SMA300A - 300A - 256.00 285.00 315.00 1 414.0 1.0 1 0.110 X
- P4SMA300CA* - 300C 256.00 285.00 315.00 1 414.0 1.5 1 0.110 X
P4SMA350A* P4SMA350CA* 350A 350C 300.00 332.00 368.00 1 482.0 1. 3 1 0.112 X
P4SMA400A* P4SMA400CA* 400A 400C 342.00 380.00 420.00 1 548.0 1. 1 1 0.112 X
P4SMA440A* P4SMA440CA* 440A 440C 376.00 418.00 462.00 1 602.0 1. 0 1 0.112 X
P4SMA480A* P4SMA480CA* 480A 480C 408.00 456.00 504.00 1 658.0 1.0 1 0.112 X
P4SMA510A* P4SMA510CA* 510A 510C 434.00 485.00 535.00 1 698.0 0.9 1 0.112 X
P4SMA530A* P4SMA530CA* 530A 530C 451.00 503.50 556.50 1 725.0 0.9 1 0.112 X
P4SMA540A* P4SMA540CA* 540A 540C 460.00 513.00 567.00 1 740.0 0.9 1 0.112 X
P4SMA550A* P4SMA550CA* 550A 550C 468.00 522.50 577.50 1 760.0 0.8 1 0.112 X
For bidirectional type having V
R
of 10 volts and less, the I
R
limit is double.
V
BR
@ T
J
= V
BR
@25°C x (1+aT x (TJ - 25)) (aT:Temperature Coefficient)
For stack-die parts, use * to label the part number.