PulseGuard® Suppressors
Surface Mount Polymeric ESD Suppressors
Physical Specifications
Environmental Specifications
#PEZꢐꢀ(MBTTꢀ&QPYZꢀꢀ
ꢀ5FSNJOBUJPOTꢐꢀ$PQQFSꢁ/JDLFMꢁ5JO
OperatingTemperature
Moisture Resistance
-65°C to +125°C
Materials
0402 series:
ꢈꢅ¡$ꢃꢀꢑꢍꢒꢀ3)ꢃꢀꢄꢅꢅꢅꢀIPVST
Solderability
.* ꢂ45%ꢂꢌꢅꢌꢃꢀ.FUIPEꢀꢌꢅꢉ
0603, ST23:
ꢉꢍ¡$ꢃꢀꢉꢍꢒꢀ3)ꢃꢀꢄꢅꢅꢅꢀIPVST
Soldering
Parameters
8BWFꢀTPMEFSꢀꢂꢀꢌꢋꢅ¡$ꢃꢀꢄꢅꢀTFDPOETꢀNBYJNVNꢀ
3FnPXꢀTPMEFSꢀꢂꢀꢌꢋꢅ¡$ꢃꢀꢆꢅꢀTFDPOETꢀNBYJNVN
.* ꢂ45%ꢂꢌꢅꢌꢃꢀ.FUIPEꢀꢄꢅ ꢃ
-65°C to 125°C, 30 min. cycle,
10 cycles
Thermal Shock
Design Consideration
.* ꢂ45%ꢂꢌꢅꢌꢃꢀ.FUIPEꢀꢌꢅꢄꢃꢀꢀꢇꢄꢅꢀ
to 55 to 10 Hz, 1 min. cycle, 2
hrs each in X-Y-Z)
Because of the fast rise-time of the ESD transient, proper
QMBDFNFOUꢀPGꢀ1VMTF(VBSEꢀTVQQSFTTPSTꢀBSFꢀBꢀLFZꢀEFTJHOꢀ
consideration to achieving optimal ESD suppression. The
devices should be placed on the circuit board as close to the
source of the ESD transient as possible. Install PulseGuard
TVQQSFTTPSTꢀꢇDPOOFDUFEꢀGSPNꢀTJHOBMꢁEBUBꢀMJOFꢀUPꢀHSPVOEꢊꢀ
directly behind the connector so that they are the first board-
level circuit component encountered by the ESD transient.
Vibration
Chemical Resistance
.* ꢂ45%ꢂꢌꢅꢌꢃꢀ.FUIPEꢀꢌꢄꢍ
*1$ꢁ&*"ꢀ+ꢂ45%ꢂꢅꢅꢌ
Solder Leach Resistance and
Terminal Adhesion
Soldering Parameters
Reflow Condition
-Temperature Min (Ts(min)
1Cꢀoꢀ'SFFꢀBTTFNCMZ
)
150°C
Pre Heat -Temperature Max (Ts(max)
-Time (min to max) (ts)
)
200°C
ꢋꢅꢀoꢀꢄꢉꢅꢀTFDPOET
Average ramp up rate (LiquidusTemp
(TL) to peak
ꢆ¡$ꢁTFDPOEꢀNBY
TS(max) toTL - Ramp-up Rate
ꢆ¡$ꢁTFDPOEꢀNBY
ꢌꢄꢓ¡$ꢀ
-Temperature (TL) (Liquidus)
Reflow
-Temperature (tL)
60 – 150 seconds
260°C
PeakTemperature (TP)
#BTFEꢀPOꢀ*1$ꢁ+&%&$ꢀ+ꢂ45%ꢂꢅꢌꢅ
Time within 5°C of actual peak
Temperature (tp)
10 – 30 seconds
Ramp-down Rate
ꢋ¡$ꢁTFDPOEꢀNBY
ꢉꢀNJOVUFTꢀNBY
Time 25°C to peakTemperature (TP)
PGB1 Series
3
www.littelfuse.com
©2011 Littelfuse
Specifications are subject to change without notice.
Revised: January 11, 2012