*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

Description

Bourns sets a new industry standard by offering this 3-electrode Gas Discharge Tube (GDT) in an innovative flat package design.

Features

n

n

Flexible mounting options

n

Low profile, space-saving design

n

10x 20 kA 8/20 µs rating

n

UL Recognized

n

RoHS compliant*

Applications

n

Telecom CPE

n

Industrial Communications

n

Surge Protective Devices

n

High density PCB assemblies

Characteristics

Test Methods per ITU-T (CCITT) K.12 Class 3 and IEC 61643-311

Characteristic

Model No.

2018-09

2018-15

2018-23

2018-35

2018-42

2018-50

Maximum (99 % of values)

Minimum (99 % of values)

90 V

<120 V

>65 V

150 V

<195 V

>110 V

230 V

<300 V

>170 V

350 V

<455 V

>260 V

420 V

<550 V

>315 V

500 V

<650 V

>375 V

100 V/µs Typical /

For 99 % of Values

1 kV/µs Typical /

For 99 % of Values

350 / <600 V

650 / <850 V

400 / <750 V

650 / <900 V

450 / <900 V

600 / <1000 V

600 / <1050 V

800 / <1250 V

700 / <1150 V

900 / <1400 V

800 / <1250 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

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.

How to Order

2018 - xx - SMH - RP LF

Series Designator

Technology, 20 kA 8/20 µs rated

Voltage

09 = 90 V

23 = 230 V

42 = 420 V

15 = 150 V

35 = 350 V

50 = 500 V

Configuration

SMH = Horizontal Mount SMD

Packaging

RP = Reelpack (Standard)

RoHS Compliancy

LF = RoHS Compliant Product

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

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