G
AS
D
ISCHARGE
T
UBE
8x10mm
No. A45 0/A451/A452
A450/A451/A452
451/A
Littelfuse series SL1021A.
3-electrode (20kA/10A)
Enhanced Discharge
Series
This product is not recommended
Features
for new designs. Please refer to
Non-radioactive
Lead Free
Failsafe Option
Specifications
Packaging
A450:
00=Bulk (2.000 pcs.)
A450/F:
00_Bulk (500 pcs.)
A451:
04=Tray (250 pcs.)
A452/F:
04=Tray (500 pcs.)
Materials
Housing:
Ceramic
Gas:
non-radioactive
Leads:
tin plated
Arc Voltage @ 1A
~ 35V
Applications
Telecommunication
Data Transmission
Subscriber protection
Underground cables
Transition Glow to Arc @
~ 1.0A
Standard
UL-497B
complies to ITU-T K.12 (formerly CCITT)
complies to DIN 57845/VDE 0845
UL-rec.
Approvals
W ebLinks
Further info see:
http://www.wickmanngroup.com/
download/orderinfo_surgearr.pdf
http://www.wickmanngroup.com/
download/crossref_surgearr.pdf
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
Time
Transverse Delay Time
complies to
ITU-T K.12
< 0.2µs
Marking
, Type, Nom. Voltage, Date
Unit Weight
ca. 2.5g
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
Characteristics
Type/
Order Code
DC
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
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**
A450 S0 0250 01 00**
A451 S0 0250 01 04
A452 S0 0250 01 04 250V
A452 F0 0250 01 04**
A450 S0 0350 01 00
A451 S0 0350 01 04
A452 S0 0350 01 04 350V
A452 F0 0350 01 04**
A450 S0 0420 11 00
A450 F0 0420 11 00** 420V
A452 S0 0420 11 04
other values on request
+/- 20%
< 450V
~ 200V
> 10GΩ
< 1.5 pF
20kA
25kA
10A
50A
•
+/- 20%
< 550V
~ 200V
> 10GΩ
< 1.5 pF
20kA
25kA
10A
50A
•
+/- 20%
< 600V
~ 200V
> 10GΩ
< 1.5 pF
20kA
25kA
10A
50A
•
-17/+30%
< 800V
~ 200V
> 10GΩ
< 1.5 pF
20kA
25kA
10A
50A
** with failsafe
Specifications are subject to change without notice.
Order
Example
Qty.
Order-
Number
Type
A450
Failsafe Option Sparkover Volt.
S0
0230
Tolerance
01
Packaging
00
050915
WebSite
Europe
Tel: +49 2302 662-107
www.wickmanngroup.com E-mail: sales@wickmann.com
Americas
Tel: +1 404 699-7820
E-mail: service@wickmannusa.com
Asia
Tel: +852 26 14-1108
E-mail: sales@wickmann.com.hk
China
Tel: +86 21 6432 5146
E-mail: sales@wickmann.cn
G
AS
D
ISCHARGE
T
UBE
Dimensions (mm) A450/A451/A452
A450
A450 with Failsafe
A451
A452 with Failsafe
A452
050915
WebSite
Europe
Tel: +49 2302 662-107
www.wickmanngroup.com E-mail: sales@wickmann.com
Americas
Tel: +1 404 699-7820
E-mail: service@wickmannusa.com
Asia
Tel: +852 26 14-1108
E-mail: sales@wickmann.com.hk
China
Tel: +86 21 6432 5146
E-mail: sales@wickmann.cn
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