TVS Diodes
Surface Mount – 1500W > SMCJ-HRA Series
Pb e3
RoHS
SMCJ-HRA Series
Description
The SMCJ-HRA High Reliability series is designed
specifically to protect sensitive electronic equipment from
voltage transients induced by lightning and other transient
voltage events. These are available with a variety of up-
screening options for enhanced reliability.
Uni-directional
Bi-directional
Agency Approvals
Features
• High reliability devices
with fabrication and
assembly lots traceability
• Excellent clamping
capability
• Low incremental surge
resistance
• Typical IR less than 1µA
above 12V
• HighTemperature
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
Agency
Agency File Number
E230531
• Enhanced reliability
screening options are
available in reference to
MIL-PRF-19500. Refer to
screen process table for
more detail on screening
options
• For surface mounted
applications to optimize
board space
Maximum Ratings andThermal Characteristics
(TA=25OC unless otherwise noted)
Parameter
Symbol Value Unit
Peak Pulse Power Dissipation atTA=25ºC by
10/1000µs waveform (Fig.1)(Note 1), (Note 2)
Power Dissipation on infinite heat sink atTA=50OC PM(AV)
PPPM
1500
W
6.5
W
A
Peak Forward Surge Current, 8.3ms Single Half
Sine Wave (Note 3)
Maximum Instantaneous Forward Voltage at
100A for Unidirectional only (Note 4)
Operating Junction and StorageTemperature
Range
IFSM
200
• Low profile package
• Built-in strain relief
VF
3.5/5.0
V
• VBR @TJ= VBR@25°C x (1+αT x
(TJ - 25))
TJ, TSTG -65 to 150 °C
TypicalThermal Resistance Junction to Lead
RuJL
RuJA
15
75
°C/W
°C/W
(αT:Temperature Coefficient)
TypicalThermal Resistance Junction to Ambient
• Glass passivated chip
junction
• 1500W peak pulse power
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
Notes:
1. Non-repetitive current pulse, per Fig. 3 and derated above T
2. Mounted on copper pad area of 0.31x0.31” (8.0 x 8.0mm) 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.
A
= 25OC per Fig. 2.
4. VF
<3.5V for VBR
<
_200V and V <5.0V for VBR >_201V.
F
• Recognized to UL 497B as
an Isolated Loop Circuit
Protector
• Fast response time:
typically less than 1.0ps
from 0V to BV min
Functional Diagram
Applications
SMCJ-HRA devices are ideal for the high reliability
protection of I/O Interfaces, VCC bus and other vulnerable
circuits used inTelecom, Computer, Industrial and
Consumer electronic applications.
Bi-directional
Cathode
Anode
Uni-directional
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/14/20
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