Gas Discharge Tubes
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Bourns® Gas Discharge Tubes Short Form Brochure

Bourns® GDT Product Overview Introduction Customers in many different industries rely on Bourns® Gas Discharge Tubes (GDTs) to protect an ever increasing array of electronic equipment. Bourns engineers have innovated and improved GDT technology by designing devices with faster response times, low capacitance, and smaller sizes while at the same time increasing impulse life performance. Bourns offers GDTs in six unique families: Long Life, Premium, High-Voltage, High Current, Hybrid and Fast Acting. This broad offering of GDT devices addresses the diverse protection needs of next generation...

Bourns® GDT Product Features • RoHS compliant* • Wide range of voltages available (75 V to 6000 V) • Wide range of GDT sizes available • Patented hybrid technology designs (MSP® GDT) • Low arc (on-state) voltage • Low capacitance and insertion loss • Non-radioactive materials • Devices are tested according to U.S.A. and International standards and recommendations • Low work function designs that result in long and stable service life • Patented Switch-Grade Fail-Short devices available on some models Benefits of Partnering with Bourns for Your GDT Circuit Protection Needs • Special leadform...

Bourns® GDT Application Overview Applications by Market Telecom/Datacom Ethernet (Exposed) Ethernet (PoE) Primary Protection Modules MDF Modules Splitters Telecom CPE Telecom Line Cards ADSL Modems VDSL Modems Set-top Boxes Gateways IAD Base Station Antennas Voice Modes MDC/PCI Modems VoIP Industrial/Consumer RS-485 RS-232 Antenna Protection Railroad Protection Irrigation Systems Home Office Equipment Instrumentation TVS Protection Devices Power Supplies Solar Power Smart Grid Smart Power Security Equipment Transportation Signaling Industrial Process Controls Petro-Chemical Equipment RF...

CMF-RL50A TBU-CA065-200-WH Tip TBU-CA065-200-WH o +t t RS485 Transceiver 2038-15-SM TISP4xxxM3BJ o 2036-35 o t CDSOT23-SM712 CMF-RL50A Ring TISP4xxxM3BJ o +t High-Current RS-485 Figure 8 Data Line Protection Figure 9 VCC MF-R018/250 CDSOT23-S2004 TBU-CA085-200-WH LVDS Device VCC Tip TBU-CA085-200-WH TISP4xxxM3BJ o t VCC 2031-42T-SM o +t 2036-35-SM o t Dierential Output CDSOT23-S2004 Ring MF-R018/250 2031-42T-SM TISP4xxxM3BJ o +t Figure 10 LVDS Input Port Surge Protection Solid-State Hook Switch Figure 11 TIP Isolation Barrier TISP4310T3BJ Tip Current Sink Ring Detect Ring Tx Power Feed Rx...

GDT General Information Quality Systems Performance by Design Bourns® GDTs are produced in ISO 9001 certified facilities. Bourns® GDT device designs are based on standard ITU-T K.12, as well as key considerations of RUS-PE80/IEEE C62.31, GR-1361, GR-974, GR-1089, ITU-T K.20/21, IEC61643-311 (EN61643-311), and DIN VDE 0845 part 2. Quality Monitoring Bourns® GDTs are 100 % production tested to ensure compliance of key product parameters. UL Listing Quality Sampling Inspections Bourns® GDTs are inspected to AQL 0.65, DIN ISO 2859 Bourns® GDT devices are recognized to UL 497B under UL file...

Hybrid GDTs Hybrid GDT Devices A hybrid GDT is a device that integrates two or more protection technologies into its design to provide an enhanced circuit protection solution. 2026-xx-XX-MSP Heavy Duty, 3-Electrode Multi-Stage Protector MSP® GDT Size (mm) 8 x 14 Max. Surge AC (10/350 Discharge µs) 1 Life (20 Operation operations) 5 kA 10 A Surge Life (10/1000 µs) 500 A, >1000 Operations DC Form Breakdown Packaging Factor Range (V) 230 - 330 Bulk Advantages • • • • Long service life Hybrid solid-state design Solid-state response combined with robust GDT Radial Drop-in primary protection...

Long Life GDTs Long Life GDT Devices Long Life GDT devices are designed to meet or exceed GDT performance as specified in ITU K.12. These GDTs are available in heavy duty, medium duty and light duty versions and are targeted to customers requiring superior performance of end products over a longer service life. In addition to ITU K.12, some heavy duty long life GDT series are based on key considerations of RUS-80/IEEE 2035-xx-XX Light Duty, 2-Electrode Miniature GDT *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

2035-xx-SM Light Duty, 2-Electrode Miniature Precision Surface Mount GDT Surge Life Bulk, Tape ■ Long and stable service life ■ Light duty AC & surge current ratings ■ Compact size ideal for board level protection ■ Low capacitance and insertion loss ■ UL Listed and RoHS compliant* 2037-xx-XX Light Duty, 2-Electrode Miniature GDT

Premium GDTs Premium GDT devices are designed to meet selected performance requirements as specified in ITU K.12. These GDTs are available in heavy duty, medium duty and light duty versions and are targeted to customers that require a cost-effective protection solution for end products with short to medium service life requirements. Surge Life • Medium service life Bulk, Tape Axial . Medium duty surge rating and Reel leaded • Low capacitance and insertion loss • UL Listed and RoHS compliant*

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

High-Current GDTs High-current GDT devices are designed to handle very large impulse discharge currents. Typically utilized in surge protection devices (SPDs), these GDTs have 8/20 (is impulse current ratings of 40-100 kA. *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

High-Voltage GDTs High-voltage GDT devices are designed specifically for those customers and applications requiring a high level of isolation. This family of GDT is available with DC breakdown voltages ranging from 800 V to 6000 V. Tape and Reel Surface mount High-voltage DC breakdown voltages up to 2 kV Mini surface mount device Low capacitance and insertion loss UL Listed and RoHS compliant*