BOURNS 2026 Service Manual

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.

2026 Series - 3-Pole Gas Discharge Tube

Features

■ Balanced TRIGARD

®

■ Approximately 8 mm diameter, 11 mm long

■ UL recognized

■ Custom configurations available

■ High surge current rating

■ Stable breakdown throughout life

■ RoHS compliant* version available

Applications

■ Telecommunications

■ Industrial electronics

■ Commercial electronics

■ Consumer electronics

■ Automotive, aircraft, military electronics

Impulse Transverse Delay ......................................1000 V/µs.....................................................................< 75 ns

Insulation Resistance.............................................100 V (50 V for Model 2026–07 & 2026-09).................> 10

10

Ω

Glow Voltage..........................................................10 mA...........................................................................~ 70 V

Arc Voltage.............................................................1A.................................................................................~ 10 V

Glow-Arc Transition Current........................................................................................................................< 0.5 A

Capacitance...........................................................1 MHz...........................................................................< 2 pF

DC Holdover Voltage

2

...........................................>135 V, (52 V for Model 2026-07 & 2026-09,...............< 150 ms

80 V for Model 2026-15)

Impulse Discharge Current ....................................40000 A, 8/20 µs

3

......................................................... 1 operation minimum

20000 A, 8/20 µs..........................................................> 10 operations

1000 A, 10/1000 µs .....................................................> 400 operations

Alternating Discharge Current................................130 Arms, 11 cycles

3

................................................... 1 operation minimum

20 Arms, 1 s.................................................................> 10 operations

Operation and Storage Temperature, Climatic Category (IEC 60068-1) 40/ 90/ 21.................................... -40 to +90 °C

Optional Switch-Grade Fail-short device available.

Notes:

• UL recognized component, UL File E153537.

• Model number marking on tube: 26-xxx V.

• The rated discharge current for TRIGARD

¤

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

• Sparkover limits after life ±25 %, IR >10

8

Ω (-25 %,+30 % for Model 2026-07, 2026-09 and 2026-60).

• Line to Line voltage is approximately 1.8 to 2 times the stated Line to Ground breakdown voltage.

• At delivery AQL 0.65 Level II, DIN ISO 2859

1

Tube meets BT requirement Type 14 A/1 (210-310 V).

2

Network applied.

3

DC Sparkover may exceed ±25 % after discharge, but will continue to protect without venting.

Characteristics

Test Methods per ITU-T (CCITT) K.12, IEEE C62.31, RUS PE-80, Telcordia GR 1361

*RoHS COMPLIANT

VERSIONS

AVAILABLE

Characteristic

Model No.

2026-07 2026-09 2026-15 2026-20 2026-23 2026-25 2026-26

DC Sparkover ±20 % @ 100 V/s 75 V 90 V 150 V 200 V 230 V 250 V 260V

1

Impulse Sparkover
100 V/µs 275 V 275 V 350 V 425 V 450 V 475 V 475 V
1000 V/µs 700 V 600 V 575 V 625 V 650 V 700 V 700 V

Characteristic

Model No.

2026-30 2026-35 2026-40 2026-42 2026-47 2026-60

DC Sparkover ±20 % @ 100 V/s 300 V 350 V 400 V 420 V 470 V 600 V

Impulse Sparkover
100 V/µs 500 V 625 V 675 V 725 V 800 V 925 V
1000 V/µs 775 V 875 V 925 V 1000 V 1100 V 1250 V

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

DIMENSIONS: MILLIMETERS

UNITS WITH LEADS ARE BASED ON THE

2026-XX-A1 BODY.

2026 Series - 3-Pole Gas Discharge Tube

Product Dimensions (additional lead form configurations available upon request)

2026-XX-A

2026-XX-A1

2026-XX-C2

2026-XX-C3

2026-XX-C4

2026-XX-C8

2026-XX-C

1.0 mm dia. lead wire

1.0 DIA.

30

LONG

2 PLCS.

7.5

FAIL-SHORT CONFIGURATION

2026-XX-C2F SHOWN

How To Order

2026 - nn - x n F LF

Model Number
Designator

Voltage (Divided by 10)

07 = 75 V 30 = 300 V
09 = 90 V 35 = 350 V
15 = 150 V 40 = 400 V
20 = 200 V 42 = 420 V
23 = 230 V 47 = 470 V
25 = 250 V 60 = 600 V
26 = 260 V

Leads

A = None
C = 1 mm

Lead Shape
(See Product Dimension Drawings)

Fail-Short Option

Blank = Standard Product
F = With Fail-Short Mechanism

Lead Free Option

Blank = Standard Product
LF = Lead Free/RoHS Compliant Product

0.7 - 1.0

1.0 DIA.

6.1

6.1

8.1

7.5

9.6

1.6

9.0

11.7

7.8

0.6

7.9

11.2 REF.

1.0 DIA.

4.4

1.0 DIA.

7.5

1.0 DIA.

13.0

MAX.

15.4

4.5

4.4

1.0 DIA.

4.75

4.75

7.5

4.4