The CT Suffix: Turning a Walsin Spec Code Into an Orderable Part Number
Walsin’s MLCC export drops the CT packaging suffix, so exported part numbers are not orderable as-is. How to spot the gap and fix a BOM line.
September 26, 2026
Walsin’s MLCC export drops the CT packaging suffix, so exported part numbers are not orderable as-is. How to spot the gap and fix a BOM line.
A real count of the Walsin catalogue: 264,958 parts across seven lines, what the public search tool hides, and where Walsin’s own numbers disagree.
Walsin’s MLCC reflow profile: 3°C/s ramp, 60-120s soak, 60-150s above 217°C, 260°C peak, two passes max — with land patterns and real part numbers.
Walsin MLCC flex crack limits by series: general purpose passes 1 mm board bend, MT 2-3 mm, SH, SG and ST 5 mm. Real parts and series coverage.
Walsin’s HT series is its only 150 °C MLCC: 128 parts, 102 X8G and 26 X8R, 0402 to 1210, 50 V and 100 V only. A checklist before you commit.
Walsin’s FT 3-terminal feed-through MLCC is 8 parts, one 0402 and seven 0805, with no 3-pad land pattern published. How to specify one safely.
Walsin chip resistor RCWV is the lower of root PR and a case-size ceiling. 1,136 of 4,016 general purpose parts are voltage-limited, not power-limited.
Walsin wide terminal chip resistors: 1,708 parts at 1225, 1,708 at 0612, 878 at 1020. Real part numbers, power by size, and the TCR 1020 cannot give.
How to specify a Walsin trimmable chip resistor: 0/-10%, 0/-20% and 0/-30% bands, four case sizes, the trim window each band buys, and real part numbers.
Walsin’s thick film range stops at 10 megohms. Its 488-part High Ohm group reaches 100 megohms – what it holds, what it does not, and what to check.