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
■ Aircraft and military electronics
Characteristics
2026 Series - 3-Pole Gas Discharge Tube
Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards.
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 260 V
Impulse Sparkover (1)
100 V/μs
1000 V/μs
275 V
700 V
275 V
600 V
350 V
575 V
425 V
625 V
450 V
650 V
475 V
700 V
475 V
700 V
Impulse Transverse Delay .............................................1000 V/μs ................................................................. < 75 ns
Insulation Resistance ...................................................100 V (50 V for Model 2026–07 & 2026-09) ............. > 1010 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
)51-6202ledoMrofV08
Impulse Discharge Current ...........................................40000 A, 8/20 μs(3) .................................................. 1 operation minimum
02/8,A00002 μs ...................................................... > 10 operations
053/01,A0005 μs ................................................... 1 operation
0001/01,A0001 μs ................................................. > 400 operations
Alternating Discharge Current ......................................130 Arms, 11 cycles (3) ............................................. 1 operation minimum
snoitarepo01>.............................................................s1,smrA02
Operation and Storage Temperature .............................................................................................................. -40 to +90 °C
Climatic Category (IEC 60068-1) .................................................................................................................... 40/ 90/ 21
Moisture Sensitivity Level ....................................................................................................
ESD Classification (HBM)
........................... 1
............................................................................................................................... 6
An optional Switch-Grade Fail-Short device is available. The optional Fail-Short assembly will activate at a temperature of 215 °C – 217 °C
to provide a high conductive path to ground in case of a thermal overload. GDTs equipped with the optional Fail-Short device should be
soldered either manually at a temperature that is below the activation temperature of the Fail-Short mechanism, or using a selective soldering
process that does not exceed 210 °C.
Notes:
• 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 >108Ω (-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
(2) Network applied.
(3) DC Sparkover may exceed ±25 % after discharge, but will continue to protect without venting.
*RoHS COMPLIANT
VERSIONS
AVAILABLE
Characteristic Model No.
2026-30 2026-35 2026-40 2026-42 2026-47 2026-60
V006V074V024V004V053V003s/V001@%02±revokrapSCD
Impulse Sparkover
Impulse Sparkover voltage is defined as typical values of distribution.
(1)
100 V/μs
1000 V/μs
550 V
775 V
625 V
875 V
675 V
925 V
725 V
1000 V
800 V
1100 V
925 V
1250 V
(1)
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
2026 Series - 3-Pole Gas Discharge Tube
2026-XX-A
UNITS WITH LEADS ARE BASED ON THE
2026-XX-A1 BODY.
2026-XX-C4
2026-XX-C
1.0 ± 0.08 mm (.039 ± .002 in.) dia. lead wire
FAIL-SHORT CONFIGURATION
2026-XX-C2F SHOWN
2026-XX-A1
DIA.
7.9 ± 0.3
(.311 ± .012) 11.3 ± 0.4
(.445 ± .016)
DIA.
1.0 ± 0.04
(.039 ± .002)
0.85 ± 0.2
(.033 ± .008)
LONG
2 PLCS.
DIA.
7.9 ± 0.2
(.311 ± .008)
DIA. 1.0 ± 0.04
(.039 ± .002)
11.3 ± 0.4
(.449 ± .016)
30.5 ± 0.4
(1.201 ± .016)
7.5 ± 0.3
(.295 ± .012)
8.1 ± 0.3
(.319 ± .012)
9.6 ± 0.4
(.378 ± .016)
DIMENSIONS: MM
(INCHES)
DIA. 9.0 ± 0.2
(.354 ± .008) 11.83 ± 0.6
(.466 ± .024)
0.8 ± 0.3
(.032 ± .012)
1.53 ± 0.1
(.060 ± .004)
DIA.
7.8 ± 0.3
(.307 ± .012)
2.5 ± 0.25
(.098 ± .010)
DIA.
2026-XX-C2
DIA.
7.9 ± 0.3
(.311 ± .012)
4.5 ± 0.3
(.177 ± .012)
4.4 ± 0.3
(.173 ± .012)
4.4 ± 0.3
(.173 ± .012)
15.4 ± 0.8
(.606 ± .032)
13.0 ± 0.8
(.511 ± .031)
DIA.
1.0 ± 0.04
(.039 ± .002)
7.5 ± 0.4
(.295 ± .016)
2026-XX-C3
DIA.
7.9 ± 0.3
(.311 ± .012)
DIA.
1.0 ± 0.04
(.039 ± .002)
13.5 ± 0.4
(.531 ± .016)
7.5 ± 0.4
(.295 ± .016)
4.5 ± 0.3
(.177 ± .012)
4.7 ± 0.3
(.185 ± .012)
4.7 ± 0.3
(.185 ± .012)
DIA.
7.9 ± 0.3
(.311 ± .012)
DIA.
1.0 ± 0.04
(.039 ± .002)
13.5 ± 0.4
(.531 ± .016)
7.5 ± 0.4
(.295 ± .016)
5.85 ± 0.6
(.230 ± .024)
5.85 ± 0.6
(.230 ± .024)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Product Dimensions (additional lead form configurations available upon request)
2026 Series - 3-Pole Gas Discharge Tube
How to Order Packaging Specifications
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
RoHS Compliant Option
Blank = Standard Product
LF = RoHS Compliant Product
Model
Standard Packaging Quantity
Bulk (Bag) Tray Box
2026-XX-A 250 1000
2026-XX-A1 250 1000
2026-XX-C 50 300
2026-XX-C2 100 1000
2026-XX-C3 100 1000
2026-XX-C4 100 1000
Agency Recognition / Industry Standards
secnerefeRycnegA
UL 497B Recognized Component, Category QVGQ2, File E153537
UL 497 Recognized Component, Category QVGV2, File E53117
Telcordia
GR-974-CORE/
GR-1361-CORE 2026 Series devices, as applicable, are tested to GR requirements for primary protectors
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
REV. 09/19
2026 Series - 3-Pole Gas Discharge Tube
Switch-Grade Fail-short Device Shorting Curve 2026-XX-XF
10.0
20.0
30.0
5.0
Current (A) (ELTGS)
1.0
0.5
0.1
100101
ELTGS = Each Line to Ground Simultaneously
NOTE: When using a GDT fail-short device, it is imperative that all components associated and
connected to the GDT with failsafe be tested in their respective completely integrated environment
(finished product) to assure desired operation.
Seconds
1000
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
P[ZHɉSPH[LZJVSSLJ[P]LS`¸)V\YUZ¹
Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
^P[OV\[UV[PJL<ZLYZZOV\SKJOLJRMVYHUKVI[HPU[OLSH[LZ[YLSL]HU[PUMVYTH[PVUHUK]LYPM`[OH[Z\JOPUMVYTH[PVUPZJ\YYLU[
and complete before placing orders for Bourns® products.
The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns®WYVK\J[PUH\ZLYHWWSPJH[PVUTH`]HY`
MYVT[OLKH[HZOLL[JOHYHJ[LYPZ[PJZHUKWHYHTL[LYZK\L[VP[OLJVTIPUH[PVUVM[OL)V\YUZ® product with other components
PU[OL\ZLY»ZHWWSPJH[PVUVYPP[OLLU]PYVUTLU[VM[OL\ZLYHWWSPJH[PVUP[ZLSM;OLJOHYHJ[LYPZ[PJZHUKWHYHTL[LYZVMH)V\YUZ®
WYVK\J[HSZVJHUHUKKV]HY`PUKPɈLYLU[HWWSPJH[PVUZHUKHJ[\HSWLYMVYTHUJLTH`]HY`V]LY[PTL<ZLYZZOV\SKHS^H`Z]LYPM`
the actual performance of the Bourns®WYVK\J[PU[OLPYZWLJPÄJKL]PJLZHUKHWWSPJH[PVUZHUKTHRL[OLPYV^UPUKLWLUKLU[
Q\KNTLU[ZYLNHYKPUN[OLHTV\U[VMHKKP[PVUHS[LZ[THYNPU[VKLZPNUPU[V[OLPYKL]PJLVYHWWSPJH[PVU[VJVTWLUZH[LMVY
KPɈLYLUJLZIL[^LLUSHIVYH[VY`HUKYLHS^VYSKJVUKP[PVUZ
<USLZZ)V\YUZOHZL_WSPJP[S`KLZPNUH[LKHUPUKP]PK\HS)V\YUZ® product as meeting the requirements of a particular industry
Z[HUKHYKLN0:6;:  VYHWHY[PJ\SHYX\HSPÄJH[PVULN<3SPZ[LKVYYLJVNUPaLK)V\YUZPZUV[YLZWVUZPISLMVYHU`
MHPS\YLVMHUPUKP]PK\HS)V\YUZ®WYVK\J[[VTLL[[OLYLX\PYLTLU[ZVMZ\JOPUK\Z[Y`Z[HUKHYKVYWHY[PJ\SHYX\HSPÄJH[PVU<ZLYZ
of Bourns® products are responsible for ensuring compliance with safety-related requirements and standards applicable to
[OLPYKL]PJLZVYHWWSPJH[PVUZ
Bourns®WYVK\J[ZHYLUV[YLJVTTLUKLKH\[OVYPaLKVYPU[LUKLKMVY\ZLPUU\JSLHYSPMLZH]PUNSPMLJYP[PJHSVYSPMLZ\Z[HPUPUN
HWWSPJH[PVUZUVYPUHU`V[OLYHWWSPJH[PVUZ^OLYLMHPS\YLVYTHSM\UJ[PVUTH`YLZ\S[PUWLYZVUHSPUQ\Y`KLH[OVYZL]LYLWYVWLY[`
VYLU]PYVUTLU[HSKHTHNL<USLZZL_WYLZZS`HUKZWLJPÄJHSS`HWWYV]LKPU^YP[PUNI`[^VH\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZ
on a case-by-case basis, use of any Bourns®WYVK\J[ZPUZ\JO\UH\[OVYPaLKHWWSPJH[PVUZTPNO[UV[ILZHMLHUK[O\ZPZH[
[OL\ZLY»ZZVSLYPZR3PMLJYP[PJHSHWWSPJH[PVUZPUJS\KLKL]PJLZPKLU[PÄLKI`[OL<:-VVKHUK+Y\N(KTPUPZ[YH[PVUHZ*SHZZ000
KL]PJLZHUKNLULYHSS`LX\P]HSLU[JSHZZPÄJH[PVUZV\[ZPKLVM[OL<UP[LK:[H[LZ
)V\YUZL_WYLZZS`PKLU[PÄLZ[OVZL)V\YUZ®Z[HUKHYKWYVK\J[Z[OH[HYLZ\P[HISLMVY\ZLPUH\[VTV[P]LHWWSPJH[PVUZVUZ\JO
WYVK\J[Z»KH[HZOLL[ZPU[OLZLJ[PVULU[P[SLK¸(WWSPJH[PVUZ¹<USLZZL_WYLZZS`HUKZWLJPÄJHSS`HWWYV]LKPU^YP[PUNI`[^V
H\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZVUHJHZLI`JHZLIHZPZ\ZLVMHU`V[OLY)V\YUZ®Z[HUKHYKWYVK\J[ZPUHUH\[VTV[P]L
HWWSPJH[PVUTPNO[UV[ILZHMLHUK[O\ZPZUV[YLJVTTLUKLKH\[OVYPaLKVYPU[LUKLKHUKPZH[[OL\ZLY»ZZVSLYPZR0M)V\YUZ
L_WYLZZS`PKLU[PÄLZHZ\IJH[LNVY`VMH\[VTV[P]LHWWSPJH[PVUPU[OLKH[HZOLL[MVYP[ZZ[HUKHYKWYVK\J[ZZ\JOHZPUMV[HPUTLU[
VYSPNO[PUNZ\JOPKLU[PÄJH[PVUTLHUZ[OH[)V\YUZOHZYL]PL^LKP[ZZ[HUKHYKWYVK\J[HUKOHZKL[LYTPULK[OH[PMZ\JO)V\YUZ®
Z[HUKHYKWYVK\J[PZJVUZPKLYLKMVYWV[LU[PHS\ZLPUH\[VTV[P]LHWWSPJH[PVUZP[ZOV\SKVUS`IL\ZLKPUZ\JOZ\IJH[LNVY`VM
H\[VTV[P]LHWWSPJH[PVUZ(U`YLMLYLUJL[V)V\YUZ®Z[HUKHYKWYVK\J[PU[OLKH[HZOLL[HZJVTWSPHU[^P[O[OL(,*8Z[HUKHYK
VY¸H\[VTV[P]LNYHKL¹KVLZUV[I`P[ZLSMTLHU[OH[)V\YUZOHZHWWYV]LKZ\JOWYVK\J[MVY\ZLPUHUH\[VTV[P]LHWWSPJH[PVU
Bourns®Z[HUKHYKWYVK\J[ZHYLUV[[LZ[LK[VJVTWS`^P[O<UP[LK:[H[LZ-LKLYHS(]PH[PVU(KTPUPZ[YH[PVUZ[HUKHYKZNLULYHSS`
VYHU`V[OLYNLULYHSS`LX\P]HSLU[NV]LYUTLU[HSVYNHUPaH[PVUZ[HUKHYKHWWSPJHISL[VWYVK\J[ZKLZPNULKVYTHU\MHJ[\YLKMVY
\ZLPUHPYJYHM[VYZWHJLHWWSPJH[PVUZ)V\YUZL_WYLZZS`PKLU[PÄLZ)V\YUZ® standard products that are suitable for use in aircraft
VYZWHJLHWWSPJH[PVUZVUZ\JOWYVK\J[Z»KH[HZOLL[ZPU[OLZLJ[PVULU[P[SLK¸(WWSPJH[PVUZ¹<USLZZL_WYLZZS`HUKZWLJPÄJHSS`
HWWYV]LKPU^YP[PUNI`[^VH\[OVYPaLK)V\YUZYLWYLZLU[H[P]LZVUHJHZLI`JHZLIHZPZ\ZLVMHU`V[OLY)V\YUZ® standard
WYVK\J[PUHUHPYJYHM[VYZWHJLHWWSPJH[PVUTPNO[UV[ILZHMLHUK[O\ZPZUV[YLJVTTLUKLKH\[OVYPaLKVYPU[LUKLKHUKPZH[
the user’s sole risk.
;OL\ZLHUKSL]LSVM[LZ[PUNHWWSPJHISL[V)V\YUZ® custom products shall be negotiated on a case-by-case basis by Bourns
and the user for which such Bourns®J\Z[VTWYVK\J[ZHYLZWLJPHSS`KLZPNULK(IZLU[H^YP[[LUHNYLLTLU[IL[^LLU)V\YUZ
HUK[OL\ZLYYLNHYKPUN[OL\ZLHUKSL]LSVMZ\JO[LZ[PUN[OLHIV]LWYV]PZPVUZHWWSPJHISL[V)V\YUZ® standard products shall
also apply to such Bourns® custom products.
Users shall not sell, transfer, export or re-export any Bourns®WYVK\J[ZVY[LJOUVSVN`MVY\ZLPUHJ[P]P[PLZ^OPJOPU]VS]L[OL
KLZPNUKL]LSVWTLU[WYVK\J[PVU\ZLVYZ[VJRWPSPUNVMU\JSLHYJOLTPJHSVYIPVSVNPJHS^LHWVUZVYTPZZPSLZUVYZOHSS[OL`\ZL
Bourns®WYVK\J[ZVY[LJOUVSVN`PUHU`MHJPSP[`^OPJOLUNHNLZPUHJ[P]P[PLZYLSH[PUN[VZ\JOKL]PJLZ;OLMVYLNVPUNYLZ[YPJ[PVUZ
HWWS`[VHSS\ZLZHUKHWWSPJH[PVUZ[OH[]PVSH[LUH[PVUHSVYPU[LYUH[PVUHSWYVOPIP[PVUZPUJS\KPUNLTIHYNVZVYPU[LYUH[PVUHS
YLN\SH[PVUZ-\Y[OLY)V\YUZ® products and Bourns technology and technical data may not under any circumstance be
exported or re-exported to countries subject to international sanctions or embargoes. Bourns® products may not, without
WYPVYH\[OVYPaH[PVUMYVT)V\YUZHUKVY[OL<:.V]LYUTLU[ILYLZVSK[YHUZMLYYLKVYYLL_WVY[LK[VHU`WHY[`UV[LSPNPISL
[VYLJLP]L<:JVTTVKP[PLZZVM[^HYLHUK[LJOUPJHSKH[H
;V[OLTH_PT\TL_[LU[WLYTP[[LKI`HWWSPJHISLSH^)V\YUZKPZJSHPTZPHU`HUKHSSSPHIPSP[`MVYZWLJPHSW\UP[P]LJVUZLX\LU[PHS
PUJPKLU[HSVYPUKPYLJ[KHTHNLZVYSVZ[YL]LU\LZVYSVZ[WYVÄ[ZHUKPPHU`HUKHSSPTWSPLK^HYYHU[PLZPUJS\KPUNPTWSPLK^HYYHU[PLZ
VMÄ[ULZZMVYWHY[PJ\SHYW\YWVZLUVUPUMYPUNLTLU[HUKTLYJOHU[HIPSP[`
)RU\RXUFRQYHQLHQFHFRSLHVRIWKLV/HJDO'LVFODLPHU1RWLFHZLWK*HUPDQ6SDQLVK-DSDQHVH7UDGLWLRQDO&KLQHVHDQG6LPSOLÀHG&KLQHVH
bilingual versions are available at:
Web Page: http://www.bourns.com/legal/disclaimers-terms-and-policies
PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf
*9