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A451 Schematic ( PDF Datasheet ) - Littelfuse

Teilenummer A451
Beschreibung (A450 - A452) GAS DISCHARGE TUBE
Hersteller Littelfuse
Logo Littelfuse Logo 




Gesamt 2 Seiten
A451 Datasheet, Funktion
GAS DISCHARGE TUBE
8x10mmwww.DataSheet4U.com
No. A450/A451/A452
This product is not recommended
for new designs. Please refer to
Littelfuse series SL1021A.
3-electrode (20kA/10A)
Enhanced Discharge
Series
Features
Non-radioactive
Lead Free
Failsafe Option
Applications
Telecommunication
Data Transmission
Subscriber protection
Underground cables
Standard
UL-497B
complies to ITU-T K.12 (formerly CCITT)
complies to DIN 57845/VDE 0845
Approvals
UL-rec.
WebLinks
Further info see:
http://www.wickmanngroup.com/
download/orderinfo_surgearr.pdf
http://www.wickmanngroup.com/
download/crossref_surgearr.pdf
Specifications
Packaging
A450:
A450/F:
A451:
A452/F:
00=Bulk (2.000 pcs.)
00_Bulk (500 pcs.)
04=Tray (250 pcs.)
04=Tray (500 pcs.)
Materials
Housing:
Gas:
Leads:
Ceramic
non-radioactive
tin plated
Arc Voltage @ 1A
~ 35V
Transition Glow to Arc @
~ 1.0A
Operating temperature
-40°C to +90°C
Climatic Category
complies to IEC 60068-1
+40°C, 21 days, <93% humidity
Soldering characteristics
complies to IEC 60068-2-20
Soldering Heat Resistance
complies to IEC 60068-2-58
Transverse Delay Time
complies to ITU-T K.12
< 0.2µs
Marking
, Type, Nom. Voltage, Date
Unit Weight
ca. 2.5g
Characteristics
Type/
DC
Order Code sparkover
voltage
Tolerance Impulse
sparkover
voltage
(1kV/µs)
typ.
Glow Insulation
Voltage Resistance
(@100 Vdc)
E1/M;E2/M
Capacitance
(@1MHZ)
E1/M;E2/M
8/20µs 8/20µs
AC
AC
Nominal Single Nominal Alternating
Impulse Impulse Discharge Discharge
Discharge Discharge Current Current
Current Current (50Hz; 1s; (50Hz;
(10 times) (1 time) (10 times) 9 cycles)
E1+E2/M E1+E2/M E1+E2/M E1+E2/M
Approval
UL-rec.
A450 S0 0230 01 00
A450 F0 0230 01 00**
A451 S0 0230 01 04 230V
A452 S0 0230 01 04
A452 F0 0230 01 04**
+/- 20% < 450V ~ 200V > 10G
< 1.5 pF
20kA 25kA
10A
50A
A450 S0 0250 01 00**
A451 S0 0250 01 04
A452 S0 0250 01 04
250V
A452 F0 0250 01 04**
+/- 20% < 550V ~ 200V > 10G
< 1.5 pF
20kA 25kA
10A
50A
A450 S0 0350 01 00
A451 S0 0350 01 04
A452 S0 0350 01 04
350V
A452 F0 0350 01 04**
+/- 20% < 600V ~ 200V > 10G
< 1.5 pF
20kA 25kA
10A
50A
A450 S0 0420 11 00
A450 F0 0420 11 00** 420V
A452 S0 0420 11 04
other values on request
-17/+30% < 800V
** with failsafe
~ 200V
> 10G
< 1.5 pF
20kA 25kA
10A
50A
Specifications are subject to change without notice.
Order
Example
Qty.
Order-
Type Failsafe Option Sparkover Volt. Tolerance Packaging
Number A450
S0
0230 01 00
WebSite
Europe Tel: +49 2302 662-107 Americas Tel: +1 404 699-7820
Asia Tel: +852 26 14-1108
China Tel: +86 21 6432 5146
050915 www.wickmanngroup.com E-mail: [email protected] E-mail: [email protected] E-mail: [email protected] E-mail: [email protected]





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