Document
PROTECTION PRODUCTS - RailClamp®
Description
The RClamp®3346P provides ESD protection for highspeed data interfaces. It features a high maximum ESD withstand voltage of ±17kV contact and ±20kV air discharge per IEC 61000-4-2. RClamp3346P is designed to minimize both the ESD peak clamping and the TLP clamping. Package inductance is reduced at each pin resulting in lower peak ESD clamping voltage. The dynamic resistance is among the industry’s lowest at 0.15 Ohms (typical). Maximum capacitance on each line to ground is 0.65pF allowing the RClamp3346P to be used in applications operating in excess of 5GHz without signal attenuation. Each device will protect up to six lines (three high-speed pairs).
The RClamp3346P is in a 7-pin SGP2708N7 package measuring 2.7 x 0.8mm with a nominal height of 0.50mm. The leads have a nominal pin-to-pin pitch of 0.40mm. Flow- through package design simplifies PCB layout and maintains signal integrity on high-speed lines.
The combination of low peak ESD clamping, low dynamic resistance, and innovative package design enables this device to provide the highest level of ESD protection for applications such as USB 3.0, eSATA, and DisplayPort.
RClamp3346P
Low Capacitance RClamp® 6-Line ESD protection
PRELIMINARY
Features
ESD protection for high-speed data lines to IEC 61000-4-2 (ESD) ±20kV (air), ±17kV (contact) IEC 61000-4-5 (Lightning) 5A (8/20μs) IEC 61000-4-4 (EFT) 40A (5/50ns)
Package design optimized for high speed lines Flow-Through design Protects six high-speed lines Low capacitance: 0.65pF Maximum (I/O to Ground) Low ESD clamping voltage Low dynamic resistance: 0.15 Ohms (Typ) Qualified to AEC-Q100 Solid-state silicon-avalanche technology
Mechanical Characteristics
SGP2708N7 7-pin package (2.7 x 0.8 x 0.50mm) Pb-Free, Halogen Free, RoHS/WEEE Compliant Lead Pitch: 0.4mm (intra-pair) Lead finish: NiPdAu Marking: Marking Code Packaging: Tape and Reel
Applications
USB 3.0 eSATA Display Port LVDS
Dimensions
0.80 BSC 0.40 BSC
Circuit Diagram
0.80 2.70 0.50
Pin 1
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 2
Nominal Dimensions in mm (Bottom View)
Revision 11/12/2013
1
6-Line Protection
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PROTECTION PRODUCTS Absolute Maximum Rating
Rating Peak Pulse Current (tp = 8/20μs) ESD per IEC 61000-4-2 (Air)1 ESD per IEC 61000-4-2 (Contact)1 Operating Temperature Storage Temperature
Electrical Characteristics (T=25oC)
Symbol IPP VESD
TJ TSTG
RClamp3346P
PRELIMINARY
Value
4.5
+/- 20 +/- 17
-55 to +125
-55 to +150
Units A kV
°C °C
Parameter
Symbol
Conditions
Minimum Typical Maximum Units
Reverse Stand-Off Voltage Trigger Voltage2 Reverse Leakage Current
VRWM VTRIG
IR
Any I/O to GND tlp = 0.2/100ns VRWM = 3.3V, T=25oC Any I/O to GND
3.3 V 8V 0.01 0.05 μA
VRWM = 3.3V, T=125oC Any I/O to GND
0.150
μA
Clamping Voltage
VC IPP = 1A, tp = 8/20μs Any I/O to GND
2.5 3.5 V
Clamping Voltage
VC IPP = 4.5A, tp = 8/20μs Any I/O to GND
3.5 4.5 V
ESD Clamping Voltage2
.