Gas Discharge Tubes SE Series SE Series RoHS Description Littelfuse SE series GDT offers high surge ratings in a miniature package. It’s designed for surface mounting on PCB with small size 3.2x1.6x1.6mm. Low insertion loss is perfectly suited to broadband equipment applications. The capacitance does not vary with voltage, and will not cause operational problems with ADSL2+, where capacitance variation across Tip and Ring is undesirable. These devices are extremely robust and are able to divert a 500A-600A pulse in a miniature package 1206 without destruction. Features Agency Approvals AGENCY AGENCY FILE NUMBER E128662 2 Electrode GDT Graphical Symbol •RoHS compliant and Lead-free •GHz working frequency •Excellent stability on multiple pulse duty cycle •Excellent response to fast rising transients. •Ultra Low Insertion Loss •0.5-0.6KA surge capability tested with 8/20μS pulse as defined by IEC 61000-4-5 Applications Additional Information •Communication Datasheet Resources •Ultra small devices offered in a variety of mounting lead forms •Non-Radioactive •Low capacitance (<0.5pF) •Voltage Ranges 140V to 500V •UL recognized •Conforms to ITU-T K12, IEC 1000-4-5 •Square Outline Samples equipment •CATV equipment •Test equipment •Data lines •Power supplies •Telecom SLIC protection •Broadband equipment •ADSL equipment, including ADSL2+ •XDSL equipment •Satellite and CATV equipment •General telecom equipment © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/06/15 Gas Discharge Tubes SE Series Electrical Characteristics Device Specifications (at 25°C) DC Breakdown Impulse Impulse in Volts Breakdown Breakdown in Volts In Volts (@100V/s) 200 260 230 276 350 495 470 611 500 600 (@1A) MAX 800 900 700 600 900 1050 1050 1100 800 1150 1200 1200 (x10 @8/20µs) (x10 @5/320µs) MIN MAX >1GΩ (at 100VDC) <0.5 pf <0.3 pf <0.5 pf <0.5 pf <0.3 pf <0.3 pf <1.0 A <1.0 A <1.0 A <1.0 A <1.0 A <1.0 A ~10 V 0.5 kA ~60 V 150 A 0.5 kA 0.5 kA Tape and Reel Dimensions (IEC 60286-3, dimension in mm) Device Tin Plated 17.5±12.5 Microns Construction Ceramic Insulator. Storage and Operational Temperature Glow Glow Nominal Nominal to Arc Voltage Impulse Impulse Transition Discharge Discharge Current Current Current (@1 Kv/µsec) Product Characteristics Materials Arc Voltage -40 to +90 °C IEC 60286-3 in mm Dimensions Dimensions in mm 3.7 ±0.1 Max dynamic breakover voltage 2 ±0.1 A A R0.5 typical 4 ±0.1 A4 ±0.10 B 3 ±0.1 1.9 ±0.1 5° 2 ±0.1 +0.3 12 +0.3 0 4.9 ±0.1 5° 5° 0.4 ±0.05 0.4 ±0.05 Voltage vs. Time Characteristic section B-B section B-B section section A-A A-A 5° 2.1 ±0.1 Tape Specifications Tape Specifications IEC 60286-3 1.75 ±0.1 140 172 265 329 400 (@1MHz) 1.75 ±0.1 SE200 SE230 SE350 SE470 SE500 (@100V/µs) Capacitance 12 - 0.15.5 ±0.1 5.5 ±0.1 Part Number MIN TYP MAX SE140 98 140 182 Insulation Resistance Life Ratings ±0.05 Ø 1.55 1.5 Ø 1.6 ±0.1 ±0.05 B 3.65 ±0.1 B 8 ±0.1 B SMD-Tape has to withstand Force of SMD-Tape has to withstand 4 ±0.1 a minimum Ø 1.1 ±0.1 A F > 20 N / pocket Force of a minimum 2 Kg / pocket F > 20 N / pocket minimum 2vertical load Kg / pocket (minimum checking minimum vertical load quantity:10 pockets) Voltage (V) (minimum checking quantity:10 pockets) Hold-over voltage Reel Specifications IEC 60286-3 Reel Specifications Dimensions IEC 60286-3in mm On-State voltage Dimensions in mm 0 200 400 600 800 1000 1200 Time (ns) 1.5 min. 12.8 min. 18.4 max. R0.75 18.4 max. 12.4 +2/-0 12.4 +2/-0 11.9 min. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/06/15 11.9 min. Ø330 max. R0.75 Ø100 min. 12.8 min. Ø100Ø330 min. max. 20.2 min. 20.2 min. 1.5 min. Gas Discharge Tubes SE Series Soldering Parameters - Reflow Soldering (Surface Mount Devices) Pb – Free assembly Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 180 secs Average ramp up rate (Liquidus Temp (TL) to peak 3°C/second max TS(max) to TL - Ramp-up Rate 5°C/second max Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds 260 Time within 5°C of actual peak Temperature (tp) 10 – 30 seconds 6°C/second max Time 25°C to peak Temperature (TP) 8 minutes Max. Do not exceed 260°C Device Dimensions Ramp-down TS(min) Preheat tS time to peak temperature (t 25ºC to peak) Time Part Numbering System and Ordering Information SE xxx Dimensions in mm and inch [...] Series [0.063+/- 0.008] 1.6+/- 0.2 1206 Square GDT Breakdown Voltage [0.063+/- 0.008] 1.6+/- 0.2 [0.126 +/- 0.012] 3.2+/-0.3 140 = 140V 200 = 200V 230 = 230V 350 = 350V 470 = 470V 500 = 500V [0.157] 4 [0.094] 2.4 tL °C Ramp-down Rate [0.047] 1.2 Critical Zone TL to TP Ramp-up TL TS(max) 25 Peak Temperature (TP) +0/-5 tP TP Temperature Reflow Condition [0.063] 1.6 Packaging Part Number Recommended Pad Layout Packaging Option Quantity SE140 Tape and Reel 3,000 SE200 Tape and Reel 3,000 SE230 Tape and Reel 3,000 SE350 Tape and Reel 3,000 SE470 Tape and Reel 3,000 SE500 Tape and Reel 3,000 © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/06/15