Bourns Surge arrester SMD 2028 420 V 20 kA 1 pc(s) 2028-42-ALF Datenbogen

■

  Size: 8 mm diameter, 10 mm length

■

  Balanced and symmetrical TRIGARD

®

 

 design

■

  High surge current rating 

■

  Stable breakdown throughout life 

■

 Long life 

■

 Fail-Short available 

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 RoHS compliant*

 

■

 Telecommunications electronics

■

 Industrial electronics

■

 Consumer electronics

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. 
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.

Test Methods per ITU-T (CCITT) K.12 Class 3 and IEC 61643-311. 

DC Sparkover ±20 % @ 100 V/s

   230 V

250 V

350 V

420 V

Impulse Sparkover 
     100 V/µs (Typical/99 %)
     1000 V/µs (Typical/99 %)

< 450 V/550 V
< 650 V/750 V

< 450 V/550 V
< 650 V/750 V

< 700 V/800 V
< 850 V/950 V

< 850 V/950 V

< 1050 V/1150 V

Impulse Transverse Delay ............................... 1000 V/µs ..........................................................< 75 ns
Insulation Resistance (IR) ............................... 100 V ................................................................> 1 G

Ω  

Capacitance..................................................... 1 MHz ...............................................................< 2 pF
Glow Voltage ................................................... 10 mA ................................................................~ 70 V
Arc Voltage ...................................................... 1 A .....................................................................~ 10 V
DC Holdover Voltage 

1

 .................................... 135 V ................................................................< 150 ms  

Impulse Discharge Current 

2

 ........................... 30,000 A, 8/20 µs ..............................................  1 operation

 

20,000 A, 8/20 µs ..............................................  10 operations 

 

5,000 A, 10/350 µs ............................................   1 operation 

 

200 A, 10/1000 µs .............................................   300 operations 

 

20 A, 10/1000 µs ...............................................   1500 operations 

Alternating Discharge Current ......................... 20 Arms, 1 second ............................................  10 operations 
Operating Temperature ...............................................................................................................  -55 to +85 °C
Climatic Category (IEC 60068-1)................................................................................................  40 / 90 / 21

1 

Network applied.

2 

The Rated Impulse Discharge Current for TRIGARD

®

 Gas Discharge Tubes is the total current equally divided between each line

 to 

ground.

•  At delivery AQL 0.65 Level II, DIN ISO 2859.

2028-xx-ALF ................... 250 pcs. per tray
2028-xx-CLF ..................... 50 pcs. per tray
2028-xx-C2LF ................. 100 pcs. per tray
2028-xx-C2FLF............... 100 pcs. per tray

Model Number 
Designator

Voltage (Divided by 10)
 

23 = 230 V 

35 = 350 V

 

25 = 250 V 

42 = 420 V 

 

 

Leads
 

A =  No Leads / 

 

       Cassette Applications

 

C = 1.0 mm

Lead Shape
(See Product Dimension Drawings)

Fail-Short Option
 

Blank = Standard Product

 

F =  With Fail-Short Mechanism

RoHS Compliancy
 

LF =  RoHS Compliant Product

Asia-Pacifi c: 
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