P4SMA27 Datasheet, PDF (1/6 Pages) Littelfuse – P4SMA Series

P4SMA Series
Uni-directional
TVS Diodes
Surface Mount – 400W > P4SMA series
Bi-directional
RoHS
Pb e3
Description
The P4SMA series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E230531
Maximum Ratings and Thermal Characteristics
(T_A=25^OC unless otherwise noted)
Parameter
Symbol Value Unit
Peak Pulse Power Dissipation at
T_A=25ºC by 10/1000µs Waveform
P_PPM
400
W
(Fig.2)(Note 1), (Note 2)
Power Dissipation on Infinite Heat
Sink at T_A=50^OC
P_M(AV)
3.3
W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave (Note 3)
I_FSM
40
A
Maximum Instantaneous Forward
Voltage at 25A for Unidirectional
Only (Note 4)
V_F
3.5V/6.5 V
Operating Junction and Storage
Temperature Range
T_J, T_STG -55 to 150 °C
Typical Thermal Resistance Junction
to Lead
R_uJL
30
°C/W
Typical Thermal Resistance Junction
to Ambient
R_uJA
120 °C/W
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T_A = 25^OC per Fig. 3 .
2. Mounted on 0.2x0.2” (5.0 x 5.0mm) copper pad to each terminal.
3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional
device only, duty cycle=4 per minute maximum.
4. V_F<3.5V for V_BR <_ 200V and V_F<6.5V for V_BR >_ 201V.
Functional Diagram
Bi-directional
Features
• Excellent clamping
capability
• Low incremental surge
resistance
• Typical I_R less than 1µA
above 12V
• For surface mounted
applications to optimize
board space
• Low profile package
• T ypical failure mode is
short from over-specified
voltage or current
• W hisker test is conducted
based on JEDEC
JESD201A per its table 4a
and 4c
• IEC-61000-4-2 ESD
15kV(Air), 8kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2)
• EFT protection of data
lines in accordance with
IEC 61000-4-4 (IEC801-4)
• Built-in strain relief
• 400W peak pulse power
capability at 10/1000µs
waveform, repetition rate
(duty cycles):0.01%
• Fast response time:
typically less than 1.0ps
from 0V to BV min
• V_BR @T_J= V_BR@25°C x (1+αT
x (T_J - 25))
(αT:Temperature Coefficient)
• Glass passivated chip
junction
• High Temperature
soldering guaranteed:
260°C/40 seconds at
terminals
• Plastic package has
underwriters laboratory
flammability 94V-O
• Meet MSL level1, per
J-STD-020, LF maximun
peak of 260°C
• Matte tin lead–free Plated
• Halogen-free and RoHS
compliant
• 2nd level interconnect is
Pb-free per IPC/JEDEC
J-STD-609A.01
Applications
TVS devices are ideal for the protection of I/O Interfaces,
V_CC bus and other vulnerable circuits used in Telecom,
Computer, Industrial and Consumer electronic applications.
Cathode
P4SMA Series
Uni-directional
Anode
26
©2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/09/14