PL
IA
NT
Applications
■ Compact size: 5.5 mm diameter,
■ Telecommunications equipment
*R
oH
S
CO
M
Features
■
■
■
■
6 mm length
Low capacitance
Low leakage
RoHS compliant*
UL Recognized
■ Industrial equipment/electronics
■ Consumer electronics
2057 Series Light Duty 2-Electrode Miniature Gas Discharge Tube
Characteristics
Test Methods per ITU-T K.12 and IEC 61643-311.
Characteristic
DC Sparkover ±20 % @ 100 V/s
Impulse Sparkover
100 V/µs
1000 V/µs
Characteristic
DC Sparkover ±20 % @ 100 V/s
Impulse Sparkover
100 V/µs
1000 V/µs
Model No.
2057-07
2057-09
2057-12
2057-13
2057-15
2057-23
75 V
90 V
120 V
130 V
150 V
230 V
< 700 V
< 800 V
< 600 V
< 700 V
< 600 V
< 700 V
< 600 V
< 700 V
< 600 V
< 700 V
< 600 V
< 700 V
Model No.
2057-25
2057-30
2057-35
2057-40
2057-47
250 V
300 V
350 V
400 V
470 V
< 600 V
< 700 V
< 700 V
< 900 V
< 700 V
< 900 V
< 800 V
< 1000 V
< 900 V
< 1100 V
Insulation Resistance (IR) NOTE 1............................50 / 100 / 250 Vdc ................................................. > 1 GΩ
Glow Voltage ...........................................................10 mA ..................................................................... ~ 70 V
Arc Voltage ..............................................................1 A .......................................................................... ~ 10 V
Glow-Arc Transition Current .................................................................................................................... < 1 A
Maximum Capacitance ............................................1 MHz ..................................................................... < 1 pF
Maximum Impulse Discharge Current .....................10,000 A, 8/20 µs .................................................. 1 operation
5,000 A, 8/20 µs ..................................................... 10 operations
Nominal Alternating Discharge Current ...................5 A, 50 Hz, 1 second .............................................. 1 operation
15 A, 9 cycles ........................................................ 1 operation
Impulse Life ............................................................100 A, 10/1000 µs .................................................. 300 operations
DC Holdover Voltage NOTE 2 ................................................................................................................... < 150 ms
Operating Temperature............................................................................................................................ -40 to +90 ºC
Storage Temperature ............................................................................................................................... -40 to +90 °C
Climatic Category (IEC 60068-1)............................................................................................................. 40 / 90 / 21
Notes:
• UL Recognized component, UL File E153537.
• At delivery AQL 0.65, level II DIN ISO 2859
Note 1:
DC Sparkover Voltage
DC Measuring Voltage
75–90 V ...................................50 V
120–400 V ...............................100 V
470 V .......................................250 V
Note 2:
Network Applied
DC Sparkover Voltage
DC Holdover Voltage
75–145 V .................................52 V
230–250 V ...............................80 V
300–470 V ...............................150 V
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
2057 Series Light Duty 2-Electrode Miniature Gas Discharge Tube
Product Dimensions
0.8 ± 0.05
(.031 ± .002)
DIA.
20
(0.78)
LONG
2 PLCS.
MIN.
5.5 +0.3/-0.5
(.217 + .012/-.020)
DIA.
DIMENSIONS:
6.0 +0.3/-0.5
(.236 +.012/-.020)
MM
(INCHES)
Packaging Specifications
Model 2057 ships standard bulk, 100 pcs. per tray; 5 trays per box (500 units). The optional reelpack (-BT1) contains 500 pcs. per reel;
2 reels per box (1K units).
330 ± 4.0
(12.992 ± .157)
DIA.
6.0 + 1.4
(.236 +.055)
MAX.
1.5
(.059)
TYP.
10.0 ± 0.5
(.394 ± .020)
100.0
(3.937)
TYP.
52 ± 2
(2.047 ± .079)
DIMENSIONS:
MM
(INCHES)
68.0
TYP.
(2.677)
64 ± 3
(2.520 ± .118)
How to Order
2057 - xx - B T1 LF
Model Number Designator
Voltage (Divided by 10)
07 = 75 V
25 = 250 V
09 = 90 V
30 = 300 V
12 = 120 V
35 = 350 V
13 = 130 V
40 = 400 V
15 = 150 V
47 = 470 V
23 = 230 V
Leads
B = 0.8 mm
Packaging
(Blank) = Bulk Packaging (Standard)
T1 = Reelpack (Optional)
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
RoHS Compliancy
LF = RoHS Compliant Product
REV. A 06/12
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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