TVS Diodes Datasheet
SMDJ-HRA Series
Surface Mount – 3000W
Pb e3
RꢀHS
Description
The SMDJ-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
Features & Benefits
■ High reliability devices with
fabrication and assembly lots
traceability
■ Excellent clamping capability
■ Low incremental surge
resistance
■ Enhanced reliability screening
options are available in
reference to MIL-PRF-19500.
Refer to screen process table
for more detail on screening
options
■ Typical IR less than 2µA above
12V
■ HighTemperature soldering
guaranteed: 260°C/40 seconds
at terminals
Additional Information
■ Plastic package has
Underwriters laboratory
flammability 94V-O
■ For surface mounted
applications in order to
optimize board space
■ Meet MSL level1, per
J-STD-020, LF maximun peak
of 260°C
■ Low profile package
■ Built-in strain relief
Resources
Accessories
Samples
■ VBR @TJ= VBR@25°C x (1+αT
x (TJ - 25)) (αT:Temperature
Coefficient)
■ Matte tin lead–free plated
■ Halogen free and RoHS
compliant
■ Glass passivated chip junction
Agency Approvals
■ 2nd level interconnect is Pb-
free per IPC/JEDEC J-STD-
609A.01
■ 3000W peak pulse power
capability at 10/1000μs
waveform, repetition rate (duty
cycles):0.01%
Agency
Agency File Number
■ Recognized to UL 497B as an
Isolated Loop Circuit Protector
E230531
■ Fast response time: typically
less than 1.0ps from 0V to BV
min
Maximum Ratings andThermal Characteristics
(TA=25OC unless otherwise noted)
Applications
Parameter
Symbol
Value
Unit
Peak Pulse Power Dissipation atTA=25ºC
by 10/1000µs waveform (Fig.1)(Note 1), (Note 2)
SMDJ-HRA devices are ideal for the high reliability protection of I/
O Interfaces, VCC bus and other vulnerable circuits used in
Telecom, Computer, Industrial and Consumer electronic
applications.
PPPM
3000
W
Power Dissipation on infinite heat sink at
TA=50OC
PM(AV)
6.5
W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave (Note 3)
Maximum Instantaneous Forward
IFSM
VF
300
3.5
A
V
Functional Diagram
Voltage at 100A for Unidirectional only
Operating Junction and Storage
Temperature Range
TJ, TSTG -65 to 150 °C
TypicalThermal Resistance Junction to
Lead
TypicalThermal Resistance Junction to
Ambient
RuJL
RuJA
15
75
°C/W
°C/W
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Aꢅꢄꢁe
Notes:
1. Non-repetitive current pulse , per Fig. 3 and derated above TA = 25OC per Fig. 2.
2. Mounted on copper pad area of 0.31x0.31” (8.0 x 8.0mm) to each terminal.
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3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only, duty
cycle=4 per minute maximum.
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
1
Revised: GD. 05/27/21