Littelfuse SM Series - Manual

TVS Diode Arrays
(SPA ® Diodes)
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/05/13
5
SM S
eries
General Purpose ESD Protection - SM05 through SM36
Description
Applications
The SM series TVS Diode Array is designed to protect
sensitive equipment from damage due to electrostatic
discharge (ESD), electrical fast transients (EFT), and
lightning induced surges.
The SM series can absorb repetitive ESD strikes above the
maximum level specified in the IEC61000-4-2 international
standard without performance degradation and safely
dissipate up to 24A of 8/20us induced surge current (IEC-
61000-4-5) with very low clamping voltages.
Features
• ESD, IEC61000-4-2,
±30kV contact, ±30kV air
• EFT, IEC61000-4-4, 50A
(5/50ns)
• Lightning, IEC61000-4-5,
24A (t
P
=8/20μs, SM05)
• Working voltages: 5V,
12V, 15V, 24V and 36V
• Low clamping voltage
• Low leakage current
• AEC-Q101 qualified
(SOT23-3 package)
• Industrial Equipment
• Test and Medical
Equipment
• Point-of-Sale Terminals
• Motor Controls
• Legacy Ports
(RS-232, RS-485)
• Security and Alarm
Systems
Pinout and Functional Block Diagram
Life Support Note:
Not Intended for Use in Life Support or Life Saving Applications
The products shown herein are not designed for use in life sustaining or life saving
applications unless otherwise expressly indicated.
RoHS Pb GREEN
SM Series 400W TVS Diode Array
1
2
3
RS-232 Application Example
IC
RD
TD
RTS
CTS
DSR
DTR
RS-232 Port Transceiver
SM15 (x6)
(bidirecƟonal implementaƟon)
Case GND
(AEC-Q101 qualified)