Production specification
TRANSIENT VOLTAGE SUPPRESSOR
FEATURES
SMAJ5.0--SMAJ440CA
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Plastic package has underwriters laboratory flammability classification 94V-0
Optimized for LAN protection applications
Low profile package with built-in strain relief for surface mounted applications
Low incremental surge resistance, excellent clamping capability
400W peak pulse power capability with a 10/1000¦Ìs wave
form, repetition rate (duty cycle): 0.01% (300W above 78V)
Very fast response time
High temperature soldering guaranteed: 250° C/ 10 seconds at terminals
MECHANICAL DATA
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Case: JEDEC DO-214AC molded plastic over passivated chip
Terminals: solder plated, solderable per MIL-STD-750, method 2026
Polarity: for uni-directional types the color band denotes the cathode, which is postitive with respect to the
anode under normal TVS operation
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Mounting position: any Weight: 0.002 ounces, 0.064 grams
Devices for Bidirectional Applications
For bi-directional devices, use suffix C or CA (e.g. SMAJ10C, SMAJ10CA). Electrical characteristics apply in both
directions.
Maximum Ratings and Thermal Characteristics (TA=25℃ unless otherwise noted)
Characteristic
Symbol
Value
Unit
Peak power dissipation with a 10/1000μs waveform
(NOTE 1,2, FIG.1)
PPPM
Minimum 400
W
Peak pulse current with a 10/1000μs waveform (NOTE 1)
IPPM
See next table
120.0
A
Typical thermal resistance, junction to ambient (NOTE 3)
R θ JA
℃/W
Peak forward surge current, 8.3ms single half sine-wave
uni-directional only (NOTE 2)
IFSM
R θ J L
40.0
30
A
℃/W
℃
Typical thermal resistance, junction to ambient (NOTE 3)
Operating junction and storage temperature range
TJ, TSTG
-55---+150
NOTES: (1) Non-repetitive current pules, per Fig. 3 and derate above TA=25 per Fig. 2. Rating is 300W above 78V.
(2) Mounted on 0.2 x 0.2" (5.0 x 5.0mm) copper pads to each terminal.
(3) Mounted on minimum recommended pad layout.
Document Number: SMA601AE
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