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Gas Discharge Tubes
2 Electrode Extremely High Current Series (20B)
GDT_20B

Part Numbering System | Specifications | Dimensions 

Part Numbering System

WPGT
1		 - 20B
2		 800
3		 B
4		 8
5		 D4
6		 C
7		 TA
8

1 World Products Gas Discharge Tubes

2 Series Code
    

20B = 2 Electrode Extremely High Current Series

3 DC Breakdown Voltage

    

150 = 150V
30 = 230V
300 = 300V
350 = 350V
400 = 400V

420 = 420V
470 = 470V
600 = 600V
800 = 800V
1000 = 1000V
4 Diameter (“D” Dimension)
B = 8mm
Nil = For 20B Series
5 Length (“T” Dimension)
6 = 6mm
Nil = For 20B Series
6 Lead Type

B = No Leads
L = Axial lead (0.8mm lead diameter)
L1 = Axial lead (1.0mm lead diameter)
A1 = Radial lead (0.8mm lead diameter)
B1 = Radial lead (1.0mm lead diameter)
C1 = Radial lead Clip-in style (1.0mm lead diameter)
D1 = Radial Lead Clip-in style (0.8mm lead diameter)
T1 = Tab Type (20B Series)
RT25.4 = Radial Lead Type 25.4mm Lead Spacing (20B Series)

7 Low Capacitance

(Only applicable for 2R & 2N,  70V – 145V)
C = Low capacitance of 0.8pf
8 Taping Specifications
TA = Taped (Ammo Box)
TR = Tape & Reel

 

Specifications

Base Part Number

 

DC Breakdown Voltage
(V)

Maximum
Impulse
Breakdown
Voltage
(V)

Maximum Impulse
Discharge Current
(8/20 µs) (KA)

Alternating Discharge Current
(A)

Impulse Life
(10/
1000µs) (100A)

Minimum Insulation Resistance
(GΩ)

Maximum Capacitance (pf)

100V/s

100V/µs

1000V/µs

1 time

10 times
(5 times each polarity)

50Hz, 1 sec

Single
9 cycles

times

*

1MHz
WPGT-20B150 150 ± 20% 600 700 60 40 40 80 300 1 5
WPGT-20B230 230 ± 20% 600 700
WPGT-20B300 300 ± 20% 600 700
WPGT-20B350 350 ± 20% 700 800
WPGT-20B400 400 ± 20% 750 850
WPGT-20B420 420 ± 20% 750 850
WPGT-20B470 470 ± 20% 800 900
WPGT-20B600 600 ± 20% 900 1000
WPGT-20B800 800 ± 20% 1100 1200
WPGT-20B1000 1000 ± 20% 1400 1500 30 20 20 40

UL1449 3rd Edition Recognized File #E321567.

*DC Breakdown Voltage  
150-400V
470-1000V
DC Measuring Voltage
100V
250V

 

Dimensions

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World Products, LLC, 19654 8th St. East, Sonoma, CA 95476 USA Phone: (707) 996-5201 Fax: (707) 996-3380 E-mail: sales@worldproducts.com
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