RClamp0502BA
Final Datasheet Rev 4.0
Revision date 6/6/2017
www.semtech.com
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Semtech
Features
• Transient protection for high-speed data lines to
IEC 61000-4-2 (ESD) ±18kV (air), ±12kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Surge) 5A (8/20μs)
• Protects up to two I/O lines
• Low capacitance (<1pF)
• No insetion loss to > 3.0 GHz
• Low prole (<1mm)
• Low leakage current and clamping voltage
• Low operating voltage: 5.0V
• Solid-state silicon-avalanche technology
Mechanical Characteristics
• SC-75 (SOT-523) package
• Lead Finish: Matte Tin
• Pb-Free, Halogen Free, RoHS/WEEE Compliant
• Molding compound ammability rating: UL 94V-0
• Packaging: Tape and Reel
Applications
• Mobile Display Digital Interface (MDDI)
• USB 2.0/USB 3.0
• GaAs Photodetector Protection
• HBT Power Amp Protection
• Inniband Transceiver Protection
RClamp0502BA
Low Capacitance RailClamp®
ESD & CDE Protection
Description
RailClamp® TVS diodes are specically designed to
protect sensitive 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®0502BA has a typical capacitance of only
0.50pF (pin1 to 2). This means it can be used on circuits
operating in excess of 3GHz with minimal signal
attenuation. They may be used to meet the ESD
immunity requirements of IEC 61000-4-2, Level 4 (±18kV
air, ±12kV contact discharge). Each device can be
congured 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 nish. They are
compatible with both lead free and SnPb assembly
techniques. 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 exible solution for
applications such as HDMI, MDDI, antenna circuits,
Automatic Test Equipment, USB 2.0/3.0, and Inniband
circuits.
1 2
3
1.60
0.75
1.00
BSC
0.50
BSC
1.60
0.80
2 1
3
Nominal Dimensions (mm) Schematic & Pin Conguration
SC-75 3L (Top View)
PROTECTION PRODUCTS
RClamp0502BA
Final Datasheet Rev 4.0
Revision Date 6/6/2017
www.semtech.com
2 of 8
Semtech
Absolute Maximum Rating
Rating Symbol Value Units
Peak Pulse Power (tp = 8/20µs) P
PK
125 W
Peak Pulse Current (tp = 8/20µs) I
PP
5 A
ESD per IEC 61000-4-2 (Air)
(1)
ESD per IEC 61000-4-2 (Contact)
(1)
V
ESD
±18
±12
kV
Operating Temperature T
J
-55 to +125
O
C
Storage Temperature T
STG
-55 to +150
O
C
Electrical Characteristics (T=25
O
C unless otherwise specied)
Parameter Symbol Conditions Min. Typ. Max. Units
Reverse Stand-O Voltage V
RWM
Pin 1 or Pin 2 to Pin 3, and between Pin 1 & 2 5 V
Reverse Breakdown Voltage V
BR
I
BR
= 1mA, Pin 1 or Pin 2 to Pin 3 6 V
Reverse Leakage Current I
R
V
RWM
= 5V, Pin 1 or Pin 2 to Pin 3 and
between Pin 1 & 2
1 μA
Clamping Voltage V
C
t
p
= 8/20μs
Pin 1 or Pin 2 to Pin 3
I
PP
= 1A 15
V
t
p
= 8/20μs
Pin 1 or Pin 2 to Pin 3
I
PP
= 5A 22
t
p
= 8/20μs
between Pin 1 & 2
I
PP
= 5A 25
Junction Capacitance C
J
V
R
= 0V, f = 1MHz
Pin 1 to Pin 2 0.5 0.9 pF
Pin 1 or Pin 2 to Pin 3 1.2 pF
Notes:
1) ESD gun return path connected to ESD ground plane.