050915
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
www.wickmanngroup.com E-mail: sales@wickmann.com
E-mail: service@wickmannusa.com
E-mail: sales@wickmann.com.hk
E-mail: sales@wickmann.cn
G
GG
G
G
AS
AS
AS
AS
AS
D
D
D
D
D
ISCHARGE
ISCHARGE
ISCHARGE
ISCHARGE
ISCHARGE
T
T
T
T
T
UBE
UBE
UBE
UBE
UBE
Characteristics
Characteristics
Characteristics
Characteristics
Characteristics
Specifications
Specifications
Specifications
Specifications
Specifications
Packaging
Packaging
Packaging
Packaging
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
Materials
Materials
Materials
Materials
Housing:
Ceramic
Gas:
non-radioactive
Leads:
tin plated
Arc Voltage @ 1A
Arc Voltage @ 1A
Arc Voltage @ 1A
Arc Voltage @ 1A
Arc Voltage @ 1A
~ 35V
TT
TT
Transition Glow to Arc @
ransition Glow to Arc @
ransition Glow to Arc @
ransition Glow to Arc @
ransition Glow to Arc @
~ 1.0A
Operating temperature
Operating temperature
Operating temperature
Operating temperature
Operating temperature
-40C to +90C
Climatic Category
Climatic Category
Climatic Category
Climatic Category
Climatic Category
complies to IEC 60068-1
+40C, 21 days, <93% humidity
Soldering characteristics
Soldering characteristics
Soldering characteristics
Soldering characteristics
Soldering characteristics
complies to IEC 60068-2-20
Soldering Heat Resistance
Soldering Heat Resistance
Soldering Heat Resistance
Soldering Heat Resistance
Soldering Heat Resistance
complies to IEC 60068-2-58
TT
TT
Transverse Delay T
ransverse Delay T
ransverse Delay T
ransverse Delay T
ransverse Delay Time
ime
ime
ime
ime
complies to
ITU-T K.12
< 0.2s
Marking
Marking
Marking
Marking
Marking
, Type, Nom. Voltage, Date
Unit Weight
Unit Weight
Unit Weight
Unit Weight
Unit Weight
ca. 2.5g
3-electrode (20kA/10A)
3-electrode (20kA/10A)
3-electrode (20kA/10A)
3-electrode (20kA/10A)
3-electrode (20kA/10A)
Enhanced Discharge
Enhanced Discharge
Enhanced Discharge
Enhanced Discharge
Enhanced Discharge
Series
Series
Series
Series
Series
Features
Features
Features
Features
Features
Non-radioactive
Lead Free
Failsafe Option
Applications
Applications
Applications
Applications
Applications
Telecommunication
Data Transmission
Subscriber protection
Underground cables
Standard
Standard
Standard
Standard
Standard
UL-497B
complies to ITU-T K.12 (formerly CCITT)
complies to DIN 57845/VDE 0845
Approvals
Approvals
Approvals
Approvals
Approvals
UL-rec.
W
W
W
W
WebLinks
ebLinks
ebLinks
ebLinks
ebLinks
Further info see:
Further info see:
Further info see:
Further info see:
Further info see:
http://www.wickmanngroup.com/
download/orderinfo_surgearr.pdf
http://www.wickmanngroup.com/
download/crossref_surgearr.pdf
8x10mm
No. A4
A4
A4
A4
A4555550/A
0/A
0/A
0/A
0/A451
451
451
451
451/A
/A
/A
/A
/A452
452
452
452
452
Type/
DC
Tolerance
Impulse
Glow
Insulation
Capacitance
8/20s
8/20s
AC
AC
Approval
Order Code
sparkover
sparkover Voltage Resistance
(@1MHZ)
Nominal
Single
Nominal Alternating
voltage
voltage
(@100 Vdc)
Impulse
Impulse
Discharge Discharge
(1kV/s)
Discharge Discharge
Current
Current
typ.
E1/M;E2/M
E1/M;E2/M
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
UL-rec.
A450 S0 0230 01 00
A450 F0 0230 01 00**
A451 S0 0230 01 04 230V
+/- 20%
< 450V
~ 200V
> 10G
< 1.5 pF
20kA
25kA
10A
50A
A452 S0 0230 01 04
A452 F0 0230 01 04**
A450 S0 0250 01 00**
A451 S0 0250 01 04
250V
+/- 20%
< 550V
~ 200V
> 10G
< 1.5 pF
20kA
25kA
10A
50A
A452 S0 0250 01 04
A452 F0 0250 01 04**
A450 S0 0350 01 00
A451 S0 0350 01 04
350V
+/- 20%
< 600V
~ 200V
> 10G
< 1.5 pF
20kA
25kA
10A
50A
A452 S0 0350 01 04
A452 F0 0350 01 04**
A450 S0 0420 11 00
A450 F0 0420 11 00** 420V
-17/+30%
< 800V
~ 200V
> 10G
< 1.5 pF
20kA
25kA
10A
50A
A452 S0 0420 11 04
Specifications are subject to change without notice.
other values on request
** with failsafe
Order
Order
Order
Order
Order
Qty.
Qty.
Qty.
Qty.
Qty.
Order-
Order-
Order-
Order-
Order-
TT
TT
Type
ype
ype
ype
ype
Failsafe Option
Failsafe Option
Failsafe Option
Failsafe Option
Failsafe Option Sparkover Volt.
Sparkover Volt.
Sparkover Volt.
Sparkover Volt.
Sparkover Volt. TTTTTolerance
olerance
olerance
olerance
olerance
Packaging
Packaging
Packaging
Packaging
Packaging
Example
Example
Example
Example
Example
Number A450
S0
0230
01
00
This product is not recommended
for new designs. Please refer to
Littelfuse series SL1021A.
050915
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
www.wickmanngroup.com E-mail: sales@wickmann.com
E-mail: service@wickmannusa.com
E-mail: sales@wickmann.com.hk
E-mail: sales@wickmann.cn
G
GG
G
G
AS
AS
AS
AS
AS
D
D
D
D
D
ISCHARGE
ISCHARGE
ISCHARGE
ISCHARGE
ISCHARGE
T
T
T
T
T
UBE
UBE
UBE
UBE
UBE
Dimensions (mm) A450/A451/A452
Dimensions (mm) A450/A451/A452
Dimensions (mm) A450/A451/A452
Dimensions (mm) A450/A451/A452
Dimensions (mm) A450/A451/A452
A450
A450
A450
A450
A450
A450 with Failsafe
A450 with Failsafe
A450 with Failsafe
A450 with Failsafe
A450 with Failsafe
A451
A451
A451
A451
A451
A452 with Failsafe
A452 with Failsafe
A452 with Failsafe
A452 with Failsafe
A452 with Failsafe
A452
A452
A452
A452
A452
PDF 
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