SMAJ5.0 thru 188CA
Surface Mount TRANSZORB®
Transient Voltage Suppressors
Stand-off Voltage 5.0 to 188V
DO-214AC (SMA)
Peak Pulse Power 400W
Cathode Band
0.065 (1.65)
0.049 (1.25)
0.110 (2.79)
0.100 (2.54)
Mounting Pad Layout
0.066 MIN.
0.094 MAX.
(1.68 MIN.)
(2.38 MAX.)
0.177 (4.50)
0.157 (3.99)
Dimensions in inches
and (millimeters)
0.012 (0.305)
0.006 (0.152)
0.052 MIN.
(1.32 MIN.)
0.220
0.090 (2.29)
0.078 (1.98)
(5.58) REF
Features
• Plastic package has Underwriters Laboratory
0.060 (1.52)
0.030 (0.76)
0.008 (0.203)
MAX.
Flammability Classification 94V-0
• Optimized for LAN protection applications
0.208 (5.28)
0.194 (4.93)
• Ideal for ESD protection of data lines in
accordance with IEC 1000-4-2 (IEC801-2)
Mechanical Data
Case: JEDEC DO-214AC molded plastic over
passivated chip
Terminals: Solder plated, solderable per MIL-STD-750,
• Ideal for EFT protection of data lines in
accordance with IEC 1000-4-4 (IEC801-4)
• Low profile package with built-in strain relief for
surface mounted applications
• Glass passivated junction
Method 2026
• Low incremental surge resistance, excellent clamping
capability
• 400W peak pulse power capability with a 10/1000µs
waveform, repetition rate (duty cycle): 0.01% (300W
above 78V)
Polarity: For uni-directional types the band denotes the
cathode, which is positive with respect to the anode
under normal TVS operation
Mounting Position: Any
Weight: 0.002oz., 0.064g
Packaging Codes – Options (Antistatic):
51 – 1K per Bulk box, 20K/carton
• Very fast response time
61 – 1.8K per 7” plastic Reel (12mm tape), 36K/carton
5A – 7.5K per 13” plastic Reel (12mm tape), 75K/carton
• High temperature soldering guaranteed:
250°C/10 seconds at terminals
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 & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Symbol
PPPM
IPPM
Value
Unit
Peak pulse power dissipation with
a 10/1000µs waveform(1,2) (see fig. 1)
400
W
Peak pulse current with a 10/1000µs waveform(1)
See Next Table
40
A
Peak forward surge current 8.3ms single half sine-wave
uni-directional only(2)
IFSM
A
Typical thermal resistance, junction to ambient(3)
Typical thermal resistance, junction to lead
RθJA
RθJL
120
30
°C/W
°C/W
°C
Operating junction and storage temperature range
TJ, TSTG
–55 to +150
Notes: (1) Non-repetitive current pulse, per Fig. 3 and derated above TA = 25°C 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
10/17/01
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