RCLAMP1502B_09 Datasheet, PDF (1/8 Pages) Semtech Corporation – Ultra-Low Capacitance TVS for ESD and CDE Protection

PROTECTION PRODUCTS - RailClamp^®
Description
RailClamps are ultra low capacitance TVS arrays
designed to protect high speed data interfaces. This
series has been specifically designed to protect sensi-
tive components which are connected to high-speed
data and transmission lines from overvoltage caused
by ESD (electrostatic discharge), CDE (Cable Discharge
Events), and EFT (electrical fast transients).
The RClamp^TM1502B has a typical capacitance of only
0.60pF (pin 1 to 2). This means it can be used on
circuits operating in excess of 3GHz without signal
attenuation. They may be used to meet the ESD
immunity requirements of IEC 61000-4-2, Level 4
(±15kV air, ±8kV contact discharge). Each device can
be configured to protect 1 bidirectional line or two
unidirectional lines.
These devices are in a small SC-75 (SOT-523) package
and feature a lead-free, matte tin finish. They are com-
patible with both lead free and SnPb assembly tech-
niques. They are designed for use in applications where
board space is at a premium. The combination of small
size, low capacitance, and high level of ESD protection
makes them a flexible solution for applications such as
Automatic Test Equipment and Infiniband circuits.
RClamp1502B
Ultra-Low Capacitance TVS
for ESD and CDE Protection
Features
‹ Transient protection for high-speed data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
‹ Designed to replace polymer TVS
‹ Protects up to two I/O lines
‹ Ultra-Low capacitance (<1pF)
‹ No insertion loss to >3.0GHz
‹ Low profile (<1mm)
‹ Low leakage current and clamping voltage
‹ Low operating voltage: 15.0V
‹ Solid-state silicon-avalanche technology
Mechanical Characteristics
‹ SC-75 (SOT-523) package
‹ Lead Finish: Matte Tin
‹ RoHS/WEEE Compliant
‹ Molding compound flammability rating: UL 94V-0
‹ Marking: P6
‹ Packaging: Tape and Reel
Applications
‹ Automatic Test Equipment
‹ Firewire Ports
‹ GaAs Photodetector Protection
‹ HBT Power Amp Protection
‹ Infiniband Transceiver Protection
Dimensions
1.60
3
0.50 BSC
0.80 ^1.60
1
2
1.00
BSC
0.75
Nominal Dimensions (mm)
Revision 2/3/2009
Schematic & PIN Configuration
SC-75 3L (Top View)
1
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