Features
■ Balanced Mini-TRIGARD™
■ High surge current rating, low insertion
(5 mm diameter, 7.5 mm length)
■ Ideal for board level protection of
broadband circuits
■ Symmetrical breakdown voltage
(L-L, L-G)
■ Leadless, surface mount for economical
assembly
loss
■ Stable breakdown throughout life
■
Recognized
■ RoHS compliant* versions available
2038 Series Miniature Symmetrical 3-Electrode Surface Mount Gas Discharge Tube
Bourns offers a symmetrical surface mount (SM) 3-electrode GDT surge protection device.
The industry-leading quality and features of the Bourns® miniature-TRIGARDTM series GDT
continue in the 2038 symmetrical version. The 2038 series is ideal for board level protection
of high bandwidth applications such as xDSL, cable broadband and high speed Ethernet,
due to its symmetrical turn on characteristics as well as high energy-handling capability,
long and stable life performance and low capacitance of less than 1 pF. The 2038 series
breakdown voltages are nearly equal line to line as well as line to ground. Bourns® Gas
Discharge Tubes (GDT) are designed to prevent damage from transient disturbances by
acting as a “crowbar” in creating a virtual short-to-ground circuit during conduction. When an
electrical surge exceeds the defined breakdown voltage level of the GDT, the gas becomes
ionized and rapid conduction takes place. When the surge passes and the system voltage
returns to normal levels, the GDT returns to its high-impedance (off) state.
Additional Information
Click these links for more information:
PRODUCT TECHNICAL INVENTORY SAMPLES
SELECTOR LIBRARY
CONTACT
Characteristics
Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards.
Characteristic
DC Sparkover ± 25 % @ 100 V/s
L1/L2 to Gnd (1)
Typical Impulse Sparkover (2)
L1/L2 to Gnd
100V/μs
1000V/μs
Characteristic
DC Sparkover ± 25 % @ 100 V/s
L1/L2 to Gnd (1)
Typical Impulse Sparkover (2)
L1/L2 to Gnd
100V/μs
1000V/μs
Model No.
2038-15-SM
2038-20-SM
2038-23-SM
2038-30-SM
2038-35-SM
150 V
200 V
230 V
300 V
350 V
350 V
500 V
425 V
575 V
450 V
600 V
500 V
650 V
600 V
750 V
2038-42-SM
2038-47-SM
2038-60-SM
2038-80-SM
2038-110-SM
420 V
470 V
600 V
800 V
1100 V
675 V
850 V
750 V
950 V
850 V
1100 V
1150 V
1400 V
1500 V
1700 V
Model No.
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
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.
2038 Series Miniature Symmetrical 3-Electrode Surface Mount Gas Discharge Tube
Characteristics (continued)
Impulse Transverse Delay ............................... 100 V/μs............................................................< 50 ns
Insulation Resistance (IR) ............................... 100 V ................................................................> 109 Ω
Glow Voltage ................................................... 10 mA................................................................~ 70 V
Arc Voltage ...................................................... 1 A .....................................................................~ 10 V
Glow-Arc Transition Current .......................................................................................................< 0.5 A
Capacitance..................................................... 1 MHz ...............................................................< 1 pF
DC Holdover Voltage (3) ................................... 135 V (80 V for Model 2038-15) .......................< 150 ms
Impulse Discharge Current .............................. 10000 A, 8/20 μs (4) ...........................................1 operation min.
5000 A, 8/20 μs .................................................10 operations
200 A, 10/1000 μs .............................................300 operations
200 A, 10/700 μs ..............................................500 operations
10 A, 10/1000 μs ..............................................1500 operations
Alternating Discharge Current ......................... 10 Arms, 1 s (4) ..................................................1 operation min.
5 Arms, 1 s ........................................................10 operations
Operating Temperature...............................................................................................................-40 to +90 °C
Climatic Category (IEC 60068-1)................................................................................................40/90/21
Moisture Sensitivity Level ...........................................................................................................1
ESD Classification (HBM)...........................................................................................................6
Notes:
• 2038-15 through 2038-35 UL Recognized
, file E153537.
• 2038-80 & 2038-110 UL Recognized
, file E313168 (UL 1449).
• The rated discharge current for Mini-TRIGARD™ GDTs is the total
current equally divided between each line to ground.
• Surface Mount (SM) parts may show a temporary increase in DCBD
after the solder reflow process. Most devices will recover within 24
hours time. It should be noted that there is no quality defect nor
change in protection levels during the temporary change in DCBD.
• Sparkover limits after life ±30 %. IR >108 Ω.
• Operating characteristics per RUS PE-80 and Telcordia GR 1361
available on request.
• At delivery AQL 0.65 Level II, DIN ISO 2859.
• Bourns recommends reflowing surface mount devices per IPC/JEDEC
J-STD-020 rev D.
(1)
Line to Line DC Sparkover tolerance typically less than +30 % at
100 V/s.
(2)
Impulse Sparkover voltage is defined as typical values of distribution.
(3)
Network applied.
(4)
DC Sparkover may exceed ±30 % but will continue to protect without
venting.
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.
2038 Series Miniature Symmetrical 3-Electrode Surface Mount Gas Discharge Tube
Product Dimensions
Recommended Pad Layout
1.6
(.063)
7.5 ± 0.26
(.295 ± .010)
1.3 ± 0.13
(.051 ± .005)
5.6
(.220)
5.0 ± 0.3
(.197 ± .012)
0.51 ± 0.05
(.020 ± .002)
3.3
(.130)
8.2
(.323)
How to Order
2038 - xx - SM - RP LF
DIMENSIONS:
MM
(INCHES)
Model Number Designator
Voltage (Divided by 10)
Surface Mount
Packaging Options
Blank = Bulk Packaging (Standard)
RP = Reelpack (Optional)
RP2 = Reelpack (Optional)
RoHS Compliant Option
Blank = Standard Product
LF = RoHS Compliant Product
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.
2038 Series Miniature Symmetrical 3-Electrode Surface Mount Gas Discharge Tube
Packaging Specifications
Standard Packaging Quantity
Bulk
(Bag)
Model
2038-xx-SM
Tray
250
Box
Reel
1000
2038-xx-SM-RP
1000
2038-xx-SM-RP2
1000
The optional -RP & -RP2 reels are 330 mm in diameter and 23 mm wide.
4.0
-RP
2.0
12.0
-RP2
TOLERANCES: ±0.13 UNLESS OTHERWISE SPECIFIED
DIMENSIONS: MILLIMETERS
REV. O 08/20
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
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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