B88069X5120B252 EPCOS Inc, B88069X5120B252 Datasheet - Page 2

• Manufacturer Part Number: B88069X5120B252
• Description: Gas Discharge Tubes (GDTs) / Gas Plasma Arrestors T21-A350X
• Manufacturer: EPCOS Inc

Specifications of B88069X5120B252

• Peak Pulse Current: 20 KA
• Dc Breakover Voltage (nominal): 350 V
• Number Of Electrodes: 3
• Dimensions: 7.2 mm D x 50 mm L
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical specifications
DC spark-over voltage
Impulse spark-over voltage
Service life
Insulation resistance at 100 V
Capacitance at 1 MHz
Transverse delay time
Arc voltage at 1 A
Glow to arc transition current
Glow voltage
Weight
Operation and storage temperature
Climatic category (IEC 60068-1)
Marking, blue negative
KB AB E / KB AB PM
Please read Cautions and warnings and
Important notes at the end of this document.
Surge arrester
3-electrode arrester
Features
Standard size
Fast response time
Very high current rating
Stable performance over life
Very low capacitance
High insulation resistance
RoHS-compatible
10 operations
10 operations
at 100 V/µs
at 1 kV/µs
1 operation
1 operation
1 operation
4)
3)
1) 2) 4)
- for 99 % of measured values
- typical values of distribution
- for 99 % of measured values
- typical values of distribution
4)
dc
50 Hz; 1 s
50 Hz; 9 cycles
8/20 µs
8/20 µs
10/350 µs
4)
5)
5)
5)
5)
5)
Page 2 of 4
Applications
Line protection
Station protection
Base stations
350
± 20
< 650
< 550
< 700
< 600
10
50
20
25
5
> 10
< 1.5
< 0.2
~ 35
~ 1
~ 200
~ 2.2
-40 ... +90
40/ 90/ 21
350 YY O
350
YY
O
- Nominal voltage
- Year of production
- Non radioactive
B88069X5120B252
Issue 07 / 2007-04-23
T21-A350X
V
%
V
V
V
V
A
A
kA
kA
kA
GΩ
pF
µs
V
A
V
g
°C