Document
µClampTM www.DataSheet4U.com 1-Line ESD Protection
PROTECTION PRODUCTS - MicroClampTM Description
The µClamp series of TVS arrays are designed to protect sensitive electronics from damage or latch-up due to ESD. It is designed to replace multilayer varistors (MLVs) in portable applications such as cell phones, notebook computers, and PDAs. It features large cross-sectional area junctions for conducting high transient currents. It offers superior electrical characteristics such as lower clamping voltage and no device degradation when compared to MLVs. They offer desirable characteristics for board level protection including fast response time, low operating and clamping voltage, and no device degradation. The µClampTM1201H is in a 2-pin, RoHS compliant, SOD-523 package. The leads are finished with leadfree matte tin. Each device will protect one line operating at 12 volts. It gives the designer the flexibility to protect single lines in applications where arrays are not practical. They may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (15kV air, 8kV contact discharge). The combination of small size and high ESD surge capability makes them ideal for use in portable applications such as cellular phones, digital cameras, and MP3 players.
TM
uClamp1201H
Features
Transient protection for data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (tp = 5/50ns) Cable Discharge Event (CDE) Ultra-small SOD-523 package (1.7 x 0.9 x 0.7mm) Protects one I/O or power line Low clamping voltage Working voltage: 12V Low leakage current Solid-state silicon-avalanche technology
Mechanical Characteristics
EIAJ SOD-523 package Molding compound flammability rating: UL 94V-0 Marking: Marking code, cathode band Packaging: Tape and Reel per EIA 481 Lead Finish: Matte tin RoHS Compliant
Applications
Cellular Handsets & Accessories Personal Digital Assistants (PDAs) Notebooks & Handhelds Portable Instrumentation Digital Cameras Peripherals MP3 Players
Dimensions
1.70 1.30 0.9
Schematic & PIN Configuration
0.35
0.70
Maximum Dimensions (mm)
Revision 03/08/2005 1
SOD-523 (Top View)
www.semtech.com
uClamp1201H
PROTECTION PRODUCTS Absolute Maximum Rating
R ating Peak Pulse Power (tp = 8/20µs) Maximum Peak Pulse Current (tp = 8/20µs) ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) Lead Soldering Temperature Operating Temperature Storage Temperature Symbol Pp k Ip p V PP TL TJ TSTG
www.DataSheet4U.com
Value 200 8 +/- 20 +/- 15 260 (10 sec.) -55 to +125 -55 to +150
Units Watts Amps kV °C °C °C
Electrical Characteristics (T=25oC)
Parameter Reverse Stand-Off Voltage Reverse Breakdown Voltage Reverse Leakage Current Forward Voltage Clamp ing Voltage Clamp ing Voltage Junction Cap acitance Symbol VRWM V BR IR VF VC VC Cj It = 1mA VRWM = 12V, T=25°C IF = 10mA IPP = 1A, tp = 8/20µs IPP = 8A, tp = 8/20µs VR = 0V, f = 1MHz 0.8 19 25 60 13.3 1 Conditions Minimum Typical M.