SM15T Series
Vishay Semiconductors
formerly General Semiconductor
Surface Mount TRANSZORB®
Transient Voltage Suppressors
Breakdown Voltage 6.8 to 220V
Peak Pulse Power 1500W
DO-214AB (SMC J-Bend)
Cathode Band
0.126 (3.20)
0.114 (2.90)
0.245 (6.22)
0.220 (5.59)
Mounting Pad Layout
0.185 MAX.
(4.69 MAX.)
0.280 (7.11)
0.260 (6.60)
0.121 MIN.
(3.07 MIN.)
0.012 (0.305)
0.006 (0.152)
0.060 MIN.
(1.52 MIN.)
0.103 (2.62)
0.079 (2.06)
Dimensions in inches
and (millimeters)
0.320 REF
0.060 (1.52)
0.030 (0.76)
0.008
(0.203)
Max.
0.320 (8.13)
0.305 (7.75)
Features
Mechanical Data
• Low profile package with built-in strain relief for
surface mounted applications
Case: JEDEC DO-214AB (SMC) molded plastic over
passivated junction
• Glass passivated junction
• Low inductance
Terminals: Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity: For uni-directional types the band denotes the
cathode, which is positive with respect to the anode
under normal TVS operation
• Excellent clamping capability
• 1500W peak pulse power capability with a 10/1000µs
waveform, repetition rate (duty cycle): 0.01%
Standard Packaging: 12mm tape (EIA STD RS-481)
• Fast response time: theoretically (with no parisitic
inductance) less than 1ps from 0 Volts to V(BR) for
undirectional and 5ns for bidirectional types
Weight: 0.003 oz., 0.093 g
Packaging Codes – Options (Antistatic):
51 – 1K per Bulk box, 10K/carton
• High temperature soldering: 250°C/10 seconds at terminals
57 – 850 per 7" plastic Reel (16mm tape), 8.5K/carton
9A – 3.5K per 13" plastic Reel (16mm tape), 35K/carton
• Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
Devices for Bidirectional Applications
For bi-directional devices, use suffix CA (e.g. SM15T10CA). Electrical characteristics apply in both directions.
Maximum Ratings & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Symbol
Value
Unit
Peak pulse power dissipation with
PPPM
Minimum 1500
W
a 10/1000µs waveform(1)(2) (Fig. 1)
Peak pulse current with a 10/1000µs waveform(1) (Fig. 3)
IPPM
See Next Table
6.5
A
Power dissipation on infinite heatsink, TA = 50°C
PM(AV)
W
Peak forward surge current 10ms single half sine-wave
IFSM
200
A
uni-directional only(2)
Typical thermal resistance junction to ambient air(3)
Typical thermal resistance junction to leads
RθJA
RθJL
75
15
°C/W
°C/W
°C
Operating junction and storage temperature range
TJ, TSTG
–65 to +150
Notes: (1) Non-repetitive current pulse, per Fig.3 and derated above TA = 25°C per Fig. 2
(2) Mounted on 0.31 x 0.31” (8.0 x 8.0mm) copper pads to each terminal
(3) Mounted on minimum recommended pad layout
Document Number 88380
08-Oct-02
www.vishay.com
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