Free check: Hong Kong holds a WR chip resistor in 15 of 30 case-size and tolerance cells, covering 75.1% of 45,315 WR parts. See the empty 15.
Walsin’s guide and large-size sheet set a 2220 preheat limit of 130 °C and 50 °C; 19 of 26 files give none. We counted 24,026 rows. Free cross reference.
Walsin’s guide recommends 2 MLCC reflow passes, one sheet conditions with 3, and 24 of 26 files give no number. Free cross reference.
Walsin’s S2 sheet prints 225 capacitance cells; the export fills 101, none at NP0 2220. 80 of 82 X7R cells are surface-coating only. Free cross reference.
Walsin sheets 13-18 print 40 capacitance and voltage range edges; the export confirms 17, contradicts 7, can’t test 16. Free cross reference.
28 of 81 tolerance and TCR pairs in 234,793 Walsin chip resistor rows sit in one series; 5 only in Automotive-named series. Free cross reference.
BOM check for South Korea: the letter O is in 16 of 359,135 Walsin part numbers and I in 1,992. A cleaner swapping them breaks 1,995. Free tool.
Walsin’s 5-second overload test is a voltage rule: 22,526 of 33,192 WR and MR rows see 6.25x rated power, 6,933 see less. Free cross reference.
Walsin’s WR and MR sheets draw one derating curve: full power to 70 °C, zero at 155 °C. We compared them pixel by pixel. Free cross reference.
11 of 12 Walsin MLCC approval sheets show the reflow profile only as a picture; 9 share one soldering page word for word. Free cross reference.
