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APC08 数据表(PDF) 21 Page - Astec America, Inc |
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APC08 数据表(HTML) 21 Page - Astec America, Inc |
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21 / 23 page ![]() Technical Reference Note (APC08) MODEL: APC08 SERIES SHEET 21 OF 23 OCTOBER 4, 2004 - REVISION 03 RECOMMENDED REFLOW PROFILE 0 20 40 60 80 100 120 140 160 180 200 220 240 0 30 60 90 120 150 180 210 240 270 300 TIME (seconds) PRE-HEAT ZONE 120 - 180 sec REFLOW ZONE < 80 sec 110 °C 183 °C PEAK TEMPERATURE 200 °C - 230°C SLOPE < 4 °C /sec RECOMMENDED LOCATION FOR PICK AND PLACE The flat top surface of the large inductor (topside of the board) provides a versatile and convenient way of picking up the module (see Figure 46). A 6-7mm outside diameter nozzle from a conventional SMD machine is recommended to attain maximum vacuum pick-up. Nozzle travel and rotation speed should be controlled to prevent this off-centered picked-up module from falling off the nozzle. The use of vision recognition systems for placement accuracy will be very helpful. REFLOW NOTES / RECOMMENDATIONS 1. Refer to the recommended Reflow Profile per Figure 47. Profile parameters exceeding the recommended maximums may result to permanent damage to the module. 2. The module is recommended for topside reflow process to the host card. For other orientations, contact factory. 3. In the event that the module needs to be desoldered from the host card, some pins may be detached from the module. MODULE MARKINGS / LABELS Marking shall be permanent and legible. Please refer to Figure 48 for the module marking/ label detail. Note 1 MMM Model No FFF Option Note 2 YYWW Year / Work Week D Day of Week PP nth Panel of the day LL Location in the panel Note 3: Barcode 6 & 7 characters / line Code 128, 32CPI 0.070" Height Figure 48. Module Label APC08MMMFFF YYWWDPPLL ¨ ¨ ¨ Figure 47. Recommended Reflow Profile. |
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