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Accessories
GDT
3-electrode
BM 350/20
3-electrode GDT
BM 350/20
Part Number:
9297015
The smallest 3-electrode GDT
No radioactive
Used in connector blocks and adapted holders
UL certified
ITU-K12 compliant
Available in version for surface mounting (BM CMS series)
Available version with fail-safe (BM FL or BM C series)
Datasheet
Tender specifications
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CITEL BM surge arresters are 3-electrode gas discharge tubes designed in ceramic technology and created to protect telecommunication or computer equipment, The reduced size of the BM series enables the implementation in limited space applications (small connector blocks...), SMD mounting (BM CMS type) or PCB mounting (with lead termination : BMS). BM could be provide with external fail-safe mechanism (BMC type) and is available in several DC sparkover voltages.
Select another reference:
BM 150/20
BM 230/20
BM 350/20
BM 420/20
BM 500/20
BM 90/20
BM C 230/15
BM C 350/20
BMSQ CMS (T&R) 230/20
BMSQ CMS (T&R) 420/20
BMSQ CMS (T&R) 90/20
BMSQ CMS 230/20
BMSQ CMS 90/20
BMSQ CMS FL (T&R) 230/20
BMSQ CMS FL (T&R) 420/20
Electrical Properties
Mechanical Properties
Norms
Schemas
DC sparkover voltage (100V/s)
280-420 V
DC spark voltage tolerance (100V/s)
+/- 20%
Maximum impulse sparkover voltage (1kV/µs)
≤ 900 V
Nominal discharge current
In
10 kA
Total Maximum discharge current
Imax Total
25 kA
Impulse current by pole
Iimp
2 kA
Impulse discharge current
2 kA
Max. capacitance
C
<0.5 pF
Insulation resistance
IR
≥10 GOhms
Arc Voltage
≤ 25 V
Glow-to-arc transition current
0.5 A
Glow voltage
≤ 100 V
AC discharge current (50Hz)
10 A
DC Holdover voltage
>80 V
Impulse life
50 A
Technology
Gas discharge tube
Operating and storage temperature
-40°C / +90°C
Failsafe mode
Versions with fail-safe: BM FL 230/20 (9297957) / BM C 350/20 (9297915)
Dimensions
See diagram
Weight
0.67 g
Standards compliance
ITU-T K12 rec.
Certification
UL Recognized / ROHS
RohS compliance
Yes
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