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SL1021A250P View Datasheet(PDF) - Littelfuse, Inc

Part Name
Description
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SL1021A250P
Littelfuse
Littelfuse, Inc Littelfuse
SL1021A250P Datasheet PDF : 5 Pages
1 2 3 4 5
Gas Discharge Tube (GDT) Products
SL1021A/B, SL1024A/B and PMT8 Series
SL1021A/B, SL1024A/B and PMT8 Series
®
Description
Agency Approvals
AGENCY
®
AGENCY FILE NUMBER
E128662
3 Electrode GDT Graphical Symbol
a
b a = TIP
b = RING
e = GROUND
(center electrode)
e
Features
• RoHS compliant
• Low insertion loss
• Excellent response to
fast rising transients
• Ultra low capacitance
Applications
SL1021 / SL1024:
• Broadband equipment
• ADSL equipment
• XDSL equipment
• Satellite and CATV
equipment
• Splitters
• General telecom
equipment
• 10KA (A suffix devices) /
20KA (B suffix devices)
surge capability tested
with 8/20μs pulse as
defined by IEC 61000-4-5
• Available with thermal
failsafe option (add ‘F’
suffix to part number)
PMT8:
• Telecom network
interfaces
• Telephone line cards
• Repeaters
• Modems
• Line test equipment
GDT circuit protection devices dissipate electrical
surge energy safely within a contained plasma gas.
Commonly used to help protect sensitive telecom and
networking equipment and lines, GDTs protect from
damage that may result from lightning strikes and
equipment switching operations.
The Littelfuse GDT series described in this document
are available in a variety of leaded and surface mount
forms and offered with and without optional fail-
safe clip. Please refer to the electrical specifications,
dimension and packaging options section of this
document for additional information.
SL1021A/B and SL1024A/B Series:
SL1021A/B and SL1024A/B series GDTs are designed
to offer high levels of performance on fast rising
transients in the range of 100V/μS to 1KV/μS, which
are those most likely created by induced lightning
disturbances.
These devices feature ultra low capacitance (typically
1.5pF or less) and are extremely robust with SL102xA
devices able to divert a 10,000 Amp pulse without
destruction, and SL102xB suffix devices able to divert
a 20,000 Amp pulse without destruction.
These series offer optimized internal geometry which
provide low insertion loss at high frequencies, ideal
for the protection of broadband and other high speed
transmission equipment.
PMT8 Series:
PMT8 GDT's are telecom grade devices designed to
meet the recommendations in CCITT-K12 and Bellcore
GR-1361-CORE. The three electrode configuration
is used in applications where simultaneous crowbar
action of two signal lines is required.
Product Characteristics
Materials
Product Marking
Glow to arc
transition current
Glow Voltage
Dull Tin Plate 17.5 ± 12.5 Microns.
with ceramic insulator
‘LF’ mark, voltage& date code:
SL102xA - Red/White text
SL102xB & PMT8 - Blue/White text
~ 1Amp
~60-200 Volts
Storage and Operation
Temperature
Transverse Voltage
(Delay Time)
-40 to +90°C
< 0.2μSec (Tested to ITU-T Rec. K.12)
Arc Voltage
~10 to 35 Volts
Holdover Voltage
<150mS (Tested to ITU-T Rec. K.12)
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
Customer should verify actual device performance in their specific applications.
19
Revised: November 10, 2009
SL1021A/B, SL1024A/B and PMT8 Series
 

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