Features Applications n Fast response time n Set top boxes n Wide temperature range n Industrial communications n High surge current rating n HVAC controls n Low capacitance and insertion loss n xDSL, POTS, G.Fast n Stable performance throughout life n Antennae n Small surface mount package n RoHS compliant* GDT25 Series - Next-Generation 2-Electrode Gas Discharge Tube Arrestor General Information Agency Recognition Bourns new and improved next-generation surface mount 2-electrode GDT surge Agency Agency Category protection devices have been designed using Bourns proprietary, advanced computer File No. simulation techniques and offer industry-leading maximum impulse voltage limiting 497B - UL E153537 4th Edition specifications in a small, environmentally rugged surface mount package. The performance delivered in the Bourns GDT25 Series helps to significantly heighten protection against induced voltage transients such as lightning and AC induction. Plus, Circuit Diagram the enhanced level of protection with tighter voltage limiting provided during fast-rising events will reduce stress on downstream components compared to current GDT designs A in the same application. Product Characteristics Storage Temperature Range ......................................................................... -55 C to +125 C B Operating Temperature Range ...................................................................... -55 C to +125 C Note: Gas discharge tubes are Climate Category (IEC 60068-1) ............................................................................55 / 125 / 21 bidirectional and non-polarized. Moisture Sensitivity Level (MSL) ..............................................................................................1 ESD Classification - HBM .....................................................................................................N/A TIP RING Typical Part Marking Represents total content. Layout may vary. How to Order GROUND MANUFACTURER S GDT 2 5 - xx - S1 - RP TRADEMARK Description GDT = Gas Discharge Tube - Next-Generation Series PART Electrodes IDENTIFICATION 2 = 2-Electrode 25-xx WWYY Size 5 = 5 mm Diameter DATE CODE: WEEK AND YEAR Voltage OF MANUFACTURE 07 = 75 V WEEK (01 - 52) 09 = 90 V YEAR (LAST TWO DIGITS) 35 = 350 V EXAMPLE: 60 = 600 V 2620 = WEEK 26, YEAR 2020 Package Designator S1 = 5 x 4.4 mm SMD (Standard) Packaging Options MANUFACTURER S RP = Reel Pack (Standard) TRADEMARK Blank = Cut Tape BK = Bulk PART IDENTIFICATION 35-xx WWYY DATE CODE 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 WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov *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.GDT25 Series - Next-Generation 2-Electrode Gas Discharge Tube Arrestor 3312 - 2 mm SMD Trimming Potentiometer Electrical Characteristics Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards. (1) Device Specifications DC Impulse Insulation Glow to DC Sparkover Bourns Sparkover Resistance Glow Arc Arc Holdover Voltage Capacitance Part No. Voltage (IR) Voltage Voltage Transition Voltage 20 % (2) (5) (6) Current (8) (2) (3) (4) (7) 100 V/s 100 V/s 1 kV/s 10 mA > 1 A 1 MHz < 150 ms GDT25-07 75 V 350 V 600 V 52 V GDT25-09 90 V 350 V 500 V > 2 GW ~ 70 V ~ 5 V < 1 A < 0.6 pF GDT25-35 350 V 650 V 800 V 135 V GDT25-60 600 V 1000 V 1100 V (9) Life Ratings Bourns Max. Nominal Impulse Nominal AC Part No. Surge Current Discharge Current Discharge Current 8/20 s 8/20 s 10/350 s 10/1000 s 11 Cycles 60 Hz 1 Second 20 Arms GDT25-07 1 Operation 25 Arms GDT25-09 1 Operation 10 kA 7 kA 1 kA 100 A 7 Arms 1 Operation 10 Operations 1 Operation 300 Operations 10 Operations 20 Arms GDT25-35 1 Operation 25 Arms GDT25-60 1 Operation Notes: (1) (5) At delivery AQL 0.65 Level II, DIN ISO 285. Impulse Sparkover voltage is expressed as a maximum value, with a (2) 99 % probability of measured values within limit. DC and Impulse Sparkover values are in ionized mode 25 C. (6) (3) IR limits after Life Ratings > 100 M. Bourns recommends reflowing surface mount devices per IPC/ JEDEC J-STD-020 rev. D. (7) IR Test Voltage: 50 V for GDT25-07 and GDT25-09, (4) 100 V for GDT25-35 and GDT25-60. Surface mount GDTs may exhibit a temporary increase in the DC Sparkover Voltage after the solder reflow process. The DC Sparkover (8) Network applied (per ITU-T K.12 Edition 9.0, Section 7). Voltage will recover within 24 hours. There is no quality defect nor (9) DC Sparkover Voltage limits after Life Ratings may exceed +20 % but change in protection levels during the temporary increase in DC will continue to protect without venting (per ITU-T K.12 Edition 9.0, Sparkover Voltage. Section 6, where applicable). 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.