Gas Discharge Tube Gdt Products Page 51 Gas Discharge Tube GDT Products

Gas Discharge Tubes 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/12/17 SL1122A Series Reflow Condition Pb-free assembly Pre Heat - Temperature Min (T s(min) ) 150C - Temperature Max (T s(max) ) 200C - Time (Min to Max) (t s ) 60 - 180 seconds Average Ramp-up Rate (Liquidus Temp (T L ) to peak) 3C/second max. T S(max) to T L - Ramp-up Rate 5C/second max. Reflow - Temperature (T L ) (Liquidus) 217C - Temperature (t L ) 60 - 150 seconds Peak Temperature (T P ) 260 +0/-5 C Time within 5C of Actual Peak Temperature (t p ) 10 - 30 seconds Ramp-down Rate 6C/second max. Time 25C to Peak Temperature (T P ) 8 minutes max. Do not exceed 260C Soldering Parameters - Reflow Soldering Time Temperature T P T L T S(max) T S(min) 25 t P t L t S time to peak temperature (t 25C to peak) Ramp-down Ramp-up Preheat Critical Zone T L to T P Soldering Parameters - Wave Soldering (Thru-Hole Devices) Soldering Parameters - Hand Soldering Dwell Time 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 Time (Seconds) Temperature (C) - Measured on bottom side of board Cooling Time Preheat Time Wave Parameter Lead-Free Recommendation Preheat: (Depends on Flux Activation Temperature) (Typical Industry Recommendation) Temperature Minimum: 100 C Temperature Maximum: 150 C Preheat Time: 60-180 seconds Solder Pot Temperature: 280 C Maximum Solder Dwell Time: 2-5 seconds Recommended Process Parameters: Solder Iron Temperature: 350 C +/- 5C Heating Time: 5 seconds max. * Devices that are soldered require inspection before use. Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.

Previous Page
Next Page