PulseGuard
®
Suppressors
Surface Mount Polymeric ESD Suppressors
PGB1 Series Halogen-Free / Lead-Free
Description
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,
HDMI and DVI 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), while adding virtually no capacitance to the
circuit.
Equivalent Circuits
Features
0402 and 0603 Devices
1
2
SOT23 Device
3
and available halogen-free
5000
and 10000 piece
1
2
Applications
Product Characteristics
Part Number
PGB1010402
PGB1010603
PGB102ST23
Lines
Protected
1
1
2
Component
Package
0402
0603
SOT23
Available as
Halogen-Free
1
Computers
Yes
Yes
Electrical Characteristics
Specification
ESD Capability:
IEC 61000-4-2 Contact Discharge
1000V
Clamping Voltage (typical)
250V
12VDC
Capacitance (typical)
<1nS
<1nS
<1nS
Some shifting in characteristics may
occur when tested over multiple
pulses at a very rapid rate
500V
150V
24VDC
500V
150V
24VDC
Measured at 250 MHz
Measured per IEC 61000-4-2
2
PGB1010402
PGB1010603
PGB102ST23
Notes
Measured per IEC 61000-4-2
2
, at 25 nsec.
100 pulses min
1000 pulses min
1000 pulses min
PGB1 Series
Specifications are subject to change without notice.
1
Preliminary Draft: Revised May 4, 2009
www.littelfuse.com
©2009 Littelfuse
PulseGuard
®
Suppressors
Surface Mount Polymeric ESD Suppressors
Part Numbering System
Dimensions
0402 Device
Dimensions: mm (inch)
0.15 +/- 0.08
(0.006" +/- 0.003")
0.310 +/- 0.08
(0.012" +/- 0.003")
0.99 +/- 0.05
(0.039" +/- 0.002")
PGB1 01 0603 MR HF
LEAD-FREE
PULSEGUARD
®
ESD SUPPRESSORS
LINES PROTECTED:
01 = 1 line
02 = 2 lines
DEVICE SIZE CODE:
0402 = 0402 (1005)*
0603 = 0603 (1608)
ST23 = SOT23
QUANTITY &
PACKAGING CODE:
MR = 1000 pieces, tape & reel
WR = 3000 pieces, tape & reel
NR = 5000 pieces, tape & reel
KR = 10,000 pieces, tape & reel
HALOGEN FREE INDICATOR:
Blank = Standard Lead Free Item
HF = Halogen Free Item*
*Note: PGB1 0402 product not available as Halogen Free item.
See PGB2 0402 product instead, part number PGB2010402KRHF
(http://www.littelfuse.com/series/PGB2010402.html).
0.25
(0.010")
0.24 +/- 0.09
(0.009" +/- 0.004")
0.51 +/- 0.05
(0.020" +/- 0.002")
Reflow Solder
Recommended for
reflow soldering only
1.55
(0.061")
0.38
(0.015")
.58
(0.023")
0.56
(0.022")
0603 Device
Dimensions: mm (inch)
1.04
(0.041") REF
0.36 (0.014")
1.66 +/- 0.06
(0.066" +/- 0.003”)
0.15 +/- 0.08
(0.006" +/- 0.003”)
Typical Device Capacitance
0.84 +/- 0.05
(0.033" +/- 0.002”)
1.00
0.43 +/- 0.18
(0.017" +/- 0.007”)
Capacitance (pF)
Reflow Solder
Wave Solder
0.76 (0.030")
3.30
(0.130")
0.10
PGB102ST23
PGB1010603
PGB1010402
3.05
(0.120")
0.51 (0.020")
1.27 (0.050")
1.27 (0.050")
0.76 (0.030")
0.76 (0.030")
0.01
100
1,000
10,000
Frequency (MHz)
SOT23 Device
Dimensions: mm (inch)
2.24 +/- 0.18
(0.088" +/- 0.007")
Typical ESD Response
3.00 +/- 0.20
(0.118" +/- 0.008")
0.69 +/- 0.10
(0.027" +/- 0.004)
0.81
(0.032")
TYP
0.91
(0.036")
TYP
0.15 +/- 0.08
(0.006 +/- 0.003")
TYP
1.91
(0.075")
1200
1000
1.09
(0.043")
Voltage (V)
800
600
400
200
0
-25
0
25
50
75
PGB1010603
PGB102ST23
PGB1010402
2.29
(0.090")
Reflow Solder
1.02 (0.040")
1.27
(0.050")
1.02 (0.040")
1.02 (0.040")
Wave Solder
1.02 (0.040")
1.27
(0.050")
2.54
(0.100")
0.64
(0.025")
1.27
(0.050")
100
125
150
175
Time (ns)
0.64
(0.025")
0.51
(0.020")
2.03
(0.080")
2.29
(0.090")
PGB1 Series
Specifications are subject to change without notice.
2
Preliminary Draft: Revised May 4, 2009
www.littelfuse.com
©2009 Littelfuse
PulseGuard
®
Suppressors
Surface Mount Polymeric ESD Suppressors
Physical Specifications
Materials
Solderability
Environmental Specifications
Operating Temperature
-65°C to +125°C
0402 series:
Moisture Resistance
0603, ST23:
Soldering
Parameters
Thermal Shock
-65°C to 125°C, 30 min. cycle,
10 cycles
to
55
to 10 Hz, 1 min. cycle, 2
hrs each in X-Y-Z)
Design Consideration
Because of the fast rise-time of the ESD transient, proper
consideration to achieving 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
directly behind the connector so that they are the first board-
level circuit component encountered by the ESD transient.
Vibration
Chemical Resistance
Solder Leach Resistance and
Terminal Adhesion
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus Temp
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
60 – 150 seconds
260°C
10 – 30 seconds
150°C
200°C
Peak Temperature (T
P
)
Time within
5°C
of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
PGB1 Series
Specifications are subject to change without notice.
3
Preliminary Draft: Revised May 4, 2009
www.littelfuse.com
©2009 Littelfuse
PulseGuard
®
Suppressors
Surface Mount Polymeric ESD Suppressors
Packaging
Part Number
PGB1010402
PGB1010603
PGB102ST23
PGB1010603
Quantity &
Packaging Code
Quantity
10000
1000
3000
5000
Packaging Option
Packaging Specification
Tape and Reel Specifications
T
t
D
d
D
s
Description
C
t
T
w
0402 Series
(mm)
0.05
1.50
4.00
0.41
1.12
2.00
0.62
0.61
0603 Series SOT23 Series
(mm)
(mm)
0.05
1.50
4.00
0.06
1.50
4.00
1.02
3.23
4.00
1.02
0.65
4.00
2.46
P
d
P
w
P
h
D
d
- Drive hole diameter
D
s
- Drive hole spacing
P
d
P
h
P
s
P
w
T
t
T
w
- Carrier tape width
C
t
P
s
Typical Test Setup
FARADAY CAGE
COMPUTER
AGILENT INFINIIUM
1.5 GHz 8 GS/s
30dB PASTERNAK ATTENUATOR
PE7025-30
TEKTRONIX LOW CAP PROBE
6158 (20x TIP)
QUADTECH 1865
RESISTANCE METER
RESISTANCE
TEST FIXTURE
ESD TEST FIXTURE
TEST BOARD W/ DUT
ESD PULSE GENERATOR
PGB1 Series
Specifications are subject to change without notice.
4
Preliminary Draft: Revised May 4, 2009
www.littelfuse.com
©2009 Littelfuse
