Specifications

67
3 - electrode Miniature
Gas discharge tube
●
BM
Characteristics
3 - electrode
Gas discharge tube
●
BT
CITEL part number BM90* BM230 BM350 BM500
DC sparkover voltage
90V 230V 350V 500V
(100V/s) E/M
Impulse sparkover voltage
<700V <800V <1100V 1200V
(1kV/
㎲
) E/M
Insulation resistance
>1G
Ω >1G Ω >1G Ω >1G Ω
(at 100 Vdc or 50 Vdc for*)
Capacitance (at 1 MHz) <2 pF <2 pF <2 pF <2 pF
Holdover voltage
(R = 330
Ω
in series >60V >80V >80V >80V
RC = 150
Ω
/100nF in //)
AC discharge current
5A 5A 5A 5A
(50Hz, 1s, 10 times) E1+E2/M
Nominal discharge current
5kA 5kA 5kA 5kA
(8/20
㎲
, 10 times) E1+E2/M
Options External fail-safe : BMC ou BMFL
Axial lead termination : BMS
SMD version : BM CMS
Tape : BM en Bande
Dimensions(in mm) Dimensions(in mm)
Characteristics
CITEL part number BT90* BT230 BT350 BT500
DC sparkover voltage
90V 230V 350 V 500V
(100V/s) E/M
Tolerance +/-20% +/-20% +/-20% +/-20%
Impulse sparkover voltage E1/E2 ≥70V ≥184V ≥280V ≥400V
Impulse sparkover voltage
≤700V ≤800V ≤900V ≤1200V
(1kV/
㎲
)
E/M
Arc voltage E/M;E1/E2 <25V <25V <25V <25V
Insulation resistance
E/M;E1/E2
>1G Ω >1G Ω >1G Ω >1G Ω
(at 100 Vdc or 50 Vdc for*)
Capacitance (at 1 MHz) E/M;E1/E2 <2 pF <2 pF <2 pF <2 pF
Holdover voltage E/M;E1/E2
(R = 330
Ω
in series >70V >70V >70V >70V
RC = 150
Ω
/100nF in //)
AC discharge current
10A 10A 10A 10A
(50Hz, 1s, 10 times)
Nominal discharge current
10kA 10kA 10kA 10kA
(8/20
㎲
, 10 times)
Options
External fail-safe : BTRC
Axial lead termination : BTS (f
ø
1 or
ø
0.8 mm wire)
Radial lead termination : BTR (f
ø
1 ou
ø
0.8 mm wire)