# Gas Discharge Tube (GDT), Light Duty, 2056, 145 V, 3 Terminal Through Hole, 5 kA, 850 V
**URL**: https://novapart.co/products/2056-14-B3LF/gas-discharge-tube-gdt-light-duty-2056-145-v-3
**SKU**: 2056-14-B3LF
**Manufacturer**: BOURNS
**Category**: Circuit Protection || Gas Discharge Tubes - GDT
**Price**: €0.5700
**Stock**: 10+
**Lead Time**: 99 days (indicative)
## Description
Product Range:2056 Series; DC Breakover Voltage:145V; GDT Case Style:3 Terminal Through Hole; Impulse Discharge Current:5kA; Impulse Sparkover Voltage:850V; SVHC:No SVHC (15-Jan-2018)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Product Range | 2056 |
| Gdt Case Style | 3 Terminal Through Hole |
| Dc Breakover Voltage | 145V |
| Impulse Discharge Current | 5kA |
| Impulse Sparkover Voltage | 850V |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2148196/)
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“
*RoHS COMPLIANT
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## **Features**
## **Applications**
■ Compact size: 6 mm diameter, 8 mm length
■ Telecommunications equipment
■ Low capacitance and insertion loss
- Industrial equipment/electronics ■ Consumer electronics
■ Switch-Grade Fail-Short option available
■ RoHS compliant*
■ UL Recognized
## **2056 Series Light Duty 3-Electrode Gas Discharge Tube**
## ~~**Characteristics**~~
Test Methods per ITU-T K.12 and IEC 61643-311.
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|||||||
|---|---|---|---|---|---|
|Model No.|
|Characteristic|
|2056-09|2056-14|2056-20|2056-23|2056-25|
|DC Sparkover ±20 % @ 100 V/s|90 V|145 V|200 V|230 V|250 V|
|Impulse Sparkover|[(1)]|
|100 V/µs|< 750 V|< 750 V|< 600 V|< 600 V|< 600 V|
|1000 V/µs|< 850 V|< 850 V|< 700 V|< 700 V|< 700 V|
|Model No.|
|Characteristic|
|2056-35|2056-40|2056-42|2056-47|2056-60|
|DC Sparkover ±20 % @ 100 V/s|350 V|400 V|420 V|470 V|600 V|
|Impulse Sparkover|[(1)]|
|100 V/µs|< 650 V|< 700 V|< 700 V|< 800 V|< 900 V|
|1000 V/µs|< 750 V|< 800 V|< 800 V|< 900 V|< 1000 V|
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- (1) Impulse Sparkover voltage is defi ned as typical values of distribution.
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||||
|---|---|---|
|Insulation Resistance (IR)|[(2)]|...................................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 ..................................................................... < 2 pF|
|Maximum Impulse Discharge Current .....................5,000 A, 8/20 µs .................................................... 10 operations|
|Nominal Alternating Discharge Current ...................5 A, 50 Hz, 1 second .............................................. 1 operation|
|Impulse Life .............................................................200 A 10/1000 µs .................................................. 100 operations|
|DC Holdover Voltage|[(3)]|........................................................................................................................... < 150 ms|
|Operating Temperature ............................................................................................................................ -30 to +85 ºC|
|Storage Temperature ............................................................................................................................... -40 to +115 °C|
|Climatic Category (IEC 60068-1)............................................................................................................. 40 / 90 / 21|
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## Notes:
- UL Recognized component, UL File E153537.
- At delivery AQL 0.65, level II DIN ISO 2859
- Line to Line voltage is approximately 1.8 to 2 times the stated Line to Ground voltage.
- Discharge current rating is total current equally divided between Each Line To Ground (ELTG).
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||||
|---|---|---|
|(2)|DC Sparkover Voltage|IR Measuring Voltage|
|90 V|50 V|
|145–400 V|100 V|
|420–600 V|250 V|
|(3) Network Applied|
|DC Sparkover Voltage|DC Holdover Voltage|
|90–145 V|52 V|
|200–250 V|135 V|
|350–600 V|150 V|
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*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.
## **2056 Series Light Duty 3-Electrode Gas Discharge Tube**
## ~~**Product Dimensions**~~
## **2056-xx-A**
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8.5 ± 0.5
(.335 ± .020)
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6.0 +0.2/-0.5
(.236 + .008/-.020)
DIA.
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2056-xx-B3
0.8 mm dia., 3.8 mm spacing
11.5 +0.8/-0.5
(.453 +.031/-.020)
8.5 ± 0.5
(.335 ± .020)
6.0 +0.2/-0.5
(.236 + .008/-.020)
DIA.
7.5 ± 0.5
(.295 ± .020)
0.8 ± 0.05
(.031 ± .002)
DIA.
3.8 ± 0.3 3.8 ± 0.3
(.150 ± .012) (.150 ± .012)
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**2056-xx-B2 0.8 mm dia., 4.4 mm spacing (B2FLF Switch-Grade Fail-Short Configuration Shown)**
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11.5 ± 0.5
(.453 ± .020)
8.5 ± 0.5 6.3 ± 0.3
(.335 ± .020) (.248 ± .012)
7.6 ± 0.4
(.299 ± .016)
7.5 ± 0.5
(.295 ± .020)
0.8 ± 0.05
(.031 ± .002)
DIA.
4.4 ± 0.3 4.4 ± 0.3
(.173 ± .012) (.173 ± .012)
MM
DIMENSIONS:
(INCHES)
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## ~~**How to Order**~~
## **2056 - xx - xx (F) LF**
## ~~**Packaging Specif cations**~~
Model 2056 ships standard bulk pack, 100 pieces per tray; 5 trays per box, 2 boxes per outer pack (1K units).
Model Number Designator Voltage (Divided by 10) 09 = 90 V 35 = 350 V 14 = 145 V 40 = 400 V 20 = 200 V 42 = 420 V 23 = 230 V 47 = 470 V 25 = 250 V 60 = 600 V
Leads A = No leads/Cassette Applications B2 = 0.8 mm dia., 4.4 mm spacing B3 = 0.8 mm dia., 3.8 mm spacing Switch-Grade Fail-Short Option (Blank) = None F = Fail-Short Device (Optional) RoHS Compliancy LF = RoHS Compliant Product
REV. B 08/15
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.
## Links
- [View this product on Novapart](https://novapart.co/products/2056-14-B3LF/gas-discharge-tube-gdt-light-duty-2056-145-v-3)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/bourns/2056-14-b3lf/gas-discharge-tube-145v-3e/dp/2148196)
---
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