Gas Discharge Tube Gdt Products Page 19 Gas Discharge Tube GDT Products

Gas Discharge Tubes 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/12/17 CG7 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 secs 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 (Surface Mount Devices) 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 Device Dimensions Product Marking 2.8 0.2 2.8 0.2 2.1 0.2 3.5 0.2 TOP VIEW PROFILE VIEW TOP VIEW 4 2.5 1.2 0.5 Recommended Soldering Pad Layout Dimensions in millimeters Type Code Production Year Code (Laser Digit) Production Month Code A 7 A Type Code A CG775 B CG790 T CG7120 C CG7150 O CG7200 D CG7230 R CG7250 G CG7350 I CG7400 P CG7470 Month Code A January B February C March D April E May F June G July H August I September J October K November L December

Previous Page
Next Page