PGB Datasheet, PDF (1/3 Pages) Littelfuse – PGB Series SOT23 Surface Mount ESD Suppressor

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PulseGuard^® Suppressors
Polymeric ESD Suppressors
PGB Series SOT23 Surface Mount ESD Suppressor
Product Overview
PulseGuard ESD Suppressors help protect sensitive electronic
equipment against electrostatic discharge (ESD). They supplement the
on-chip protection of integrated circuitry and are best suited for low-
voltage, high-speed applications where low capacitance is important.
Data ports utilizing such high-speed protocols as USB 2.0, IEEE1394
and InfiniBand^SM can benefit from this new technology. PulseGuard
suppressors use polymer composite materials to suppress fast-rising
ESD transients (as specified in IEC 61000-4-2 and MIL-STD-883E).
Features
• Ultra-low capacitance
• Low leakage current
• Fast response time
• 2-lines of protection
• Bi-directional
• Withstands multiple ESD strikes
• Standard JEDEC SOT23 outline
• Compatible with pick-and-place processes
• Available in 3,000 piece reels
Typical Applications
• Servers
• Laptop/Desktop Computers
• Network Hardware
• Computer Peripherals
• Digital Cameras
• External Storage
Electrical Characteristics
Trigger Voltage¹ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,000V typical
Clamping Voltage¹. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150V typical
Rated Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24VDC max
Capacitance² . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.055pF
Response Time¹. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1ns
Leakage Current³ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <1nA
ESD Pulse Withstand¹ . . . . . . . . . . . . . . . . . . . . . 1,000 pulses minimum
Notes:
1. 8 kV direct discharge method, per IEC 61000-4-2.
2. Measured at 1 MHz.
3. Measured at 6 VDC. Testing at fast ESD pulse rates (1-20Hz) may
cause a change in leakage current performance (6µA, max).
4
Physical Specifications
Materials:
Body: Glass Epoxy
Terminations: Tin-Lead
Soldering Parameters:
Wave solder -- 260°C, 10 seconds maximum
Reflow solder -- 260°C, 30 seconds maximum
Operating Temperature Range:
-65°C to 125°C
Ordering Information
CATALOG NUMBER
PGB002ST23WR
PIECES PER REEL
3,000
Design Consideration
Because of the fast rise-time of the ESD transient, placement of
PulseGuard suppressors is a key design consideration. To achieve
optimal ESD suppression, the devices should be placed on the circuit
board as close to the source of the ESD transient as possible. Install
PulseGuard suppressors directly behind the connector so that they are
the first board-level circuit component encountered by the ESD transient.
They are connected from signal/data line to ground.
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