PL
IA
NT
Features
n
Bourns FLAT GDT technology
®
®
Applications
n
Telecom CPE
n
Industrial Communications
n
Surge Protective Devices
n
High density PCB assemblies
OM
*R
oH
S
n
Flexible mounting options
9
18- 16
29
C
n
Low profile, space-saving design
n
10x 20 kA 8/20 µs rating
LE
AD
F
RE
E
UL Recognized
n
RoHS compliant*
n
Description
2018 Series
Gas Discharge Tube Surge Arrestor with FLAT
®
Technology
Characteristics
Test Methods per ITU-T (CCITT) K.12 Class 3 and IEC 61643-311
Characteristic
DC Sparkover
DC Sparkover
Maximum (99 % of values)
Minimum (99 % of values)
Impulse Sparkover Voltage
(3)
100 V/µs Typical /
For 99 % of Values
1 kV/µs Typical /
For 99 % of Values
±20 %
@ 100 V/s
(1)
End-of-Life Values
(2)
2018-09
2018-15
2018-23
Ro VE LEA
HS RS D
C ION FRE
OM S E
PL AR
IA E
NT
*
Bourns sets a new industry standard by offering this 3-electrode Gas Discharge Tube (GDT) in an innovative flat package design.
The Model 2018 Series with FLAT
®
Technology provides a low profile, space-saving solution for space-restricted PCB applications.
Model No.
90 V
150 V
230 V
2018-35
350 V
2018-42
420 V
2018-50
500 V
<120 V
>65 V
350 / <600 V
650 / <850 V
<195 V
>110 V
400 / <750 V
650 / <900 V
<300 V
>170 V
<455 V
>260 V
<550 V
>315 V
<650 V
>375 V
450 / <900 V 600 / <1050 V 700 / <1150 V 800 / <1250 V
600 / <1000 V 800 / <1250 V 900 / <1400 V 1000 / <1600 V
Insulation Resistance (IR) ..................100 V (50 V for Model 2018-09) ............................................. > 1 GΩ
Glow Voltage ......................................10 mA ..................................................................................... ~ 70 V
Arc Voltage .........................................>1 A ........................................................................................ ~ 10 V
Capacitance........................................1 MHz ..................................................................................... < 2.5 pF
Impulse Discharge Current
(4)
............24,000 A, 8/20 µs
(5)
............................................................... 1 operation
20,000 A, 8/20 µs ................................................................... > 10 operations
5,000 A, 10/350 µs ................................................................. 1 operation
200 A, 10/1000 µs ................................................................. > 300 operations
20 A, 10/1000 µs ................................................................... >1500 operations
Alternating Discharge Current ............10 Arms, 1 s ........................................................................... > 10 operations
Operating/Storage Temperature ......................................................................................................... -55 to +105 °C
Climatic Category (IEC 60068-1)........................................................................................................ 55/105/21
Moisture Sensitivity Level ................................................................................................................... 1
ESD Classification .............................................................................................................................. 3B (>8000 V)
Notes:
•
UL Recognized component, UL File E153537
• DC Breakdown and Impulse Sparkover voltage are specified line to ground. Line to Line values are typically 1.8 to 2 times
the stated line to ground values.
(1)
In ionized mode.
(4)
Total current rating through center electrode; half value each line to center electrode.
8
(2)
IR after life >10 Ω.
(5)
DC Sparkover may exceed ±25 % after discharge, but will continue to protect without venting.
(3)
At delivery AQL 0.65 Level II, DIN ISO 2859.
How to Order
Series Designator
2018 = 3-electrode GDT with FLAT
®
Technology, 20 kA 8/20 µs rated
Voltage
09 = 90 V
15 = 150 V
23 = 230 V
35 = 350 V
2018 - xx - SMH - RP LF
Configuration
SMH = Horizontal Mount SMD
Packaging
RP = Reelpack (Standard)
42 = 420 V
50 = 500 V
Asia-Pacific:
Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA:
Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas:
Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast
2011/65/EU June 8, 2011.
“FLAT” is a registered trademark of Bourns, Inc. in the U.S. and other countries.
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.
RoHS Compliancy
LF = RoHS Compliant Product
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