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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 InfiniBandSM 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
4
• 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
Physical Specifications
Typical Applications
Materials:
• Servers
Body: Glass Epoxy
• Laptop/Desktop Computers
Terminations: Tin-Lead
• Network Hardware
Soldering Parameters:
• Computer Peripherals
Wave solder -- 260°C, 10 seconds maximum
• Digital Cameras
Reflow solder -- 260°C, 30 seconds maximum
• External Storage
Operating Temperature Range:
-65°C to 125°C
Electrical Characteristics
Ordering Information
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:
CATALOG NUMBER
PIECES PER REEL
PGB002ST23WR
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.
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).
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