SMDJ54A-HRA データシートの表示（PDF） - Littelfuse, Inc
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SMDJ54A-HRA Datasheet PDF : 6 Pages
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Transient Voltage Suppression Diodes
Surface Mount – 3000W > SMDJ-HRA series
SMDJ-HRA Series
RoHS
Uni-directional
TVS
Diode
Arrays
Description
(SPA™Family of
Products)
The SMDJ-HRA High Reliability series is designed
specifically to protect sensitive electronic equipment from
voltage transients induced by lightning and other transient
Bi-directional
voltage events. These are available with a variety of up-
screening options for enhanced reliability.
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E230531
Maximum Ratings and Thermal Characteristics
(TA=25OC unless otherwise noted)
Parameter
Symbol Value Unit
Peak Pulse Power Dissipation at
TA=25ºC by 10/1000µs waveform
PPPM
3000
W
(Fig.1)(Note 1), (Note 2)
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)
IFSM
300
A
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
VF
only
3.5
V
Operating Junction and Storage
Temperature Range
TJ, TSTG -55 to 150 °C
Typical Thermal Resistance Junction
to Lead
RuJL
15
°C/W
Typical Thermal Resistance Junction
to Ambient
RuJA
75
°C/W
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.
3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional
device only, duty cycle=4 per minute maximum.
Functional Diagram
Bi-directional
Features
• High reliability devices
with fabrication and
assembly lots traceability
• 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 in order to
optimize board space
• Low profile package
• Built-in strain relief
• VBR @TJ= VBR@25°C x (1+αT
x (TJ - 25))
(αT:Temperature Coefficient)
• Glass passivated chip
junction
• 3000W 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
• Excellent clamping
capability
• Low incremental surge
resistance
• Typical IR less than 2µA
above 12V
• 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
Applications
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.
Cathode
Uni-directional
Anode
SMDJ-HRA Series
418
©2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/18/13
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