Document Number: 89427 For technical questions within your region, please contact one of the following: www.vishay.com
Revision: 20-Apr-11 DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com 1
This document is subject to change without notice.
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Surface Mount TRANSZORB® Transient Voltage Supressors
SM15T Series
Vishay General Semiconductor
New Product
MECHANICAL DATA
Case: DO-214AB (SMC)
Molding compound meets UL 94 V-0 flammability rating
Base P/N-M3 - halogen-free, RoHS compliant, and
commercial grade
Terminals: Matte tin plated leads, solderable per
J-STD-002 and JESD22-B102
M3 suffix meets JESD 201 class 1A whisker test
Polarity: For uni-directional types the band denotes
cathode end, no marking on bi-directional types
DEVICES FOR BI-DIRECTION APPLICATIONS
For bi-directional devices use CA suffix (e.g. SM15T12CA).
Electrical characteristics apply in both directions.
FEATURES
• Low profile package
• Ideal for automated placement
• Glass passivated chip junction
• Available in uni-directional and bi-directional
• 1500 W peak pulse power capability with a 10/1000 μs
waveform, repetitive rate (duty cycle): 0.01 %
• Excellent clamping capability
• Low inductance
• Meets MSL level 1, per J-STD-020, LF maximum peak of
260 °C
• Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
•Halogen-free according to IEC 61249-2-21 definition
APPLICATION NOTES
A 1500 W (SMC) device is normally selected when the threat
of transients is from lightning induced transients, conducted
via external leads or I/O lines. It is also used to protect
against switching transients induced by large coils or
industrial motors. Source impedance at component level in
a system is usually high enough to limit the current within the
peak pulse current (IPP) rating of this series. In an overstress
condition, the failure mode is a short circuit.
TYPICAL APPLCIATIONS
Use in sensitive electronics protection against voltage
transients induced by inductive load switching and lighting
on ICs, MOSFET, signal lines of sensor units for consumer,
computer, industrial, and telecommunication.
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 mm x 8.0 mm) copper pads to each terminal
PRIMARY CHARACTERISTICS
VBR 6.8 V to 220 V
PPPM 1500 W
PD6.5 W
IFSM (uni-directional only) 200 A
TJ max. 150 °C
DO-214AB (SMC)
MAXIMUM RATINGS (TA = 25 °C, unless otherwise noted)
PARAMETER SYMBOL VALUE UNIT
Peak pulse power dissipation with a 10/1000 μs waveform (fig. 1) PPPM (1)(2) 1500 W
Peak power pulse current with a 10/1000 μs waveform (fig. 3) IPPM (1) See next table A
Power dissipation on infinite heatsink TA = 50 °C PD6.5 W
Peak forward surge current 10 ms single half sine-wave uni-directional only IFSM (2) 200 A
Operating junction and storage temperature range TJ, TSTG - 65 to + 150 °C