# Gas Discharge Tube (GDT), 2-Electrode, 2049, 75 V, Axial Leaded, 15 kA, 600 V

![Product image](https://novapart.co/image/farnell:2148139/)

**URL**: https://novapart.co/products/2049-07-BT1LF/gas-discharge-tube-gdt-2-electrode-2049-75-v-axial
**SKU**: 2049-07-BT1LF
**Manufacturer**: BOURNS
**Category**: Circuit Protection || Gas Discharge Tubes - GDT
**Price**: €0.3880
**Stock**: 500+
**Lead Time**: 99 days (indicative)

## Description

Product Range:2049 Series; DC Breakover Voltage:75V; GDT Case Style:Axial Leaded; Impulse Discharge Current:15kA; Impulse Sparkover Voltage:600V; SVHC:No SVHC (15-Jan-2018)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Product Range | 2049 |
| Gdt Case Style | Axial Leaded |
| Dc Breakover Voltage | 75V |
| Impulse Discharge Current | 15kA |
| Impulse Sparkover Voltage | 600V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2148139/)

## **Applications** 

## **Features** 

## n Size: 8 mm diameter, 6 mm length n Telecommunications equipment n Low capacitance n Industrial equipment/electronics n High insulation resistance n Consumer electronics n RoHS compliant* n UL Recognized BOURNS ~~EE~~ **2049 Series Medium Duty 2-Electrode Gas Discharge Tube** 

## ~~**Characteristics**~~ 

Test Methods per ITU-T K.12 and IEC 61643-311. 

**==> picture [490 x 165] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||||||
|---|---|---|---|---|---|---|
|Model No.|
|Characteristic|
|2049-07|2049-09|2049-12|2049-13|2049-14|2049-23|
|DC Sparkover ±30 % @ 100 V/s|75 V|90 V|120 V|130 V|145 V|230 V|
|Impulse Sparkover|[(1)]|
|100 V/µs|< 500 V|< 500 V|< 500 V|< 500 V|< 500 V|< 500 V|
|1000 V/µs|< 600 V|< 600 V|< 700 V|< 700 V|< 700 V|< 700 V|
|Model No.|
|Characteristic|
|2049-25|2049-30|2049-35|2049-40|2049-47|2049-60|
|DC Sparkover ±30 % @ 100 V/s|250 V|300 V|350 V|400 V|470 V|600 V|
|Impulse Sparkover|[(1)]|
|100 V/µs|< 500 V|< 700 V|< 700 V|< 800 V|< 900 V|< 1100 V|
|1000 V/µs|< 700 V|< 900 V|< 900 V|< 1000 V|< 1100 V|< 1300 V|

**----- End of picture text -----**<br>


(1)  Impulse Sparkover voltage is defined as typical values of distribution. 

**==> picture [439 x 143] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||
|---|---|---|
|Insulation Resistance (IR)|[(2)]|....................................50 / 100 / 250 Vdc  ................................................. > 10 GW|
|Glow Voltage ...........................................................10 mA ..................................................................... ~ 70 V|
|Arc Voltage ..............................................................1 A .......................................................................... ~ 10 V|
|Glow-Arc Transition Current .................................................................................................................... < 1 A|
|Maximum Capacitance ............................................1 MHz ..................................................................... < 1.5 pF|
|Impulse Discharge Current ......................................20,000 A, 8/20 µs  .................................................. 1 operation|
|15,000 A, 8/20 µs  .................................................. 10 operations|
|Alternating Discharge Current .................................20 A, 50 Hz, 1 sec.  ................................................ 1 operation|
|65 A, Single, 9 cycles  ............................................ 1 operation|
|Impulse Life .............................................................100 A 10/1000 µs  .................................................. 500 operations|
|Operating Temperature ............................................................................................................................ -30 to +85 ºC|
|Storage Temperature ............................................................................................................................... -40 to +150 °C|
|DC Holdover Voltage|[(3)]|........................................................................................................................... < 150 ms|
|Climatic Category (IEC 60068-1)............................................................................................................. 40 / 90 / 21|

**----- End of picture text -----**<br>


## Notes: 

• UL Recognized component, UL File E153537. 

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

**==> picture [205 x 101] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||
|---|---|---|
|[(2)]|DC Breakdown Voltage|DC Measuring Voltage|
|75–90 V|50 V|
|120–400 V|100 V|
|470–600 V|250 V|
|[(3)]|DC Breakdown Voltage|DC Holdover Voltage|
|75–145 V|52 V|
|230 V|80 V|
|250 V|135 V|
|300–600 V|150 V|

**----- End of picture text -----**<br>


*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. 

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 specific applications. 

## **2049 Series Medium Duty 2-Electrode Gas Discharge Tube** 

## ~~**Product Dimensions**~~ 

## **2049-XX-B** 

**==> picture [228 x 150] intentionally omitted <==**

**----- Start of picture text -----**<br>
0.8 ± 0.05<br>20 (.031 ± .002)<br>(.787) [MIN.]<br>8.0 +0.3/-0.5<br>6.0 +0.3/-0.5<br>(.315 +.001/-.020)<br>(.236 +.001/-.020)<br>MM<br>DIMENSIONS:<br>(INCHES)<br>**----- End of picture text -----**<br>


## ~~**How to Order**~~ 

**2049  -  xx  -  B  __  LF** 

|~~**How to Order**~~<br>**2049  -  xx  -  B**|~~**How to Order**~~<br>**2049  -  xx  -  B**|
|---|---|
|Model Number Designator||
|Voltage||
|07 = 75 V|25 = 250 V|
|09 = 90 V|30 = 300 V|
|12 = 120 V|35 = 350 V|
|13 = 130 V|40 = 400 V|
|14 = 145 V|47 = 470 V|
|23 = 230 V|60 = 600 V|
|Leads||
|B =  0.8 mm straight leads||
|Packaging||
|Blank = Bulk Packaging (Standard) - 100 pcs./tray; 500 pcs./box||
|T1 =<br>Reelpack (Optional) - 500 pcs./reel||
|Plating||
|LF = RoHS Compliant Product||



Note:  Custom leadforms available - please contact Bourns for details. 

## ~~**Packaging Specifcations**~~ 

Model 2049-xx-BLF ships standard bulk pack, 100 pieces per tray; 5 trays per box (500 units). 

The optional reelpack (-BT1LF) contains 500 pieces per reel. Reel is 330 mm in diameter and 68 mm wide. Two reels per box (1K units). 

## **2049-XX-BT1LF — 0.8 mm (0.032 in.) dia. lead wire** 

**==> picture [148 x 95] intentionally omitted <==**

**----- Start of picture text -----**<br>
52.4 ± 2.0<br>(2.05 ± 0.08)<br>10.0 ± 0.5<br>(0.4 ± .020)<br>**----- End of picture text -----**<br>


MM DIMENSIONS: (INCHES) 

Tel: +886-2 2562-4117 • Email: asiacus@bourns.com **Asia-Pacific: EMEA:** Tel: +36 88 520 390 • Email: eurocus@bourns.com **The Americas:** Tel: +1-951 781-5500 • Email: americus@bourns.com **www.bourns.com** 

Specifications 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 specific applications. 

REV. C 10/16 



## Links

- [View this product on Novapart](https://novapart.co/products/2049-07-BT1LF/gas-discharge-tube-gdt-2-electrode-2049-75-v-axial)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/bourns/2049-07-bt1lf/gas-discharge-tube-70v-15ka/dp/2148139)
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