Class I vs Class II Disc Capacitors
Class I SL or Class II high-K disc capacitor? Walsin’s 929-part range compared on tolerance, voltage and capacitance ceiling, with real part numbers.
October 3, 2026
Class I SL or Class II high-K disc capacitor? Walsin’s 929-part range compared on tolerance, voltage and capacitance ceiling, with real part numbers.
AH is X1/Y1, AC is X1/Y2, AS is X1/Y1 at 760Vac. Decode Walsin’s safety disc capacitor part numbers field by field, with 367 verified parts.
Walsin MOV series compared: Standard D, High Energy E, Super High Energy V and Industrial. One 130Vac rating, 400A to 80,000A, 17 real part numbers.
Only 146 of 5,410 Walsin inductors publish a saturation current. How to read both limits, which one binds, and what to do when only one is given.
MLCC DC bias derating explained: why Class II ceramics lose capacitance under applied voltage, how much headroom to specify, and how to read the curves.
Walsin soft termination MLCC compared: SH Ag-poly, SG Cu-poly, ST automotive AEC-Q200 and the VT series that returns zero parts on Walsin’s search.
MT vs MG Walsin automotive MLCC compared field by field: AEC-Q200 qualification, dielectric mix, real part numbers and where the two series do not overlap.
High-Q low-ESR MLCC for RF compared: Walsin HH, RF and UF series by case size, absolute tolerance and voltage, with real part numbers and what differs.
X1/Y2 safety capacitor vs X1/Y1 compared, with real Walsin AH, AC and S2 part numbers and a field-by-field match and mismatch table for each class.
Chip resistor power rating by case size, from 01005 at 1/32 W to 2512 at 2 W, with real Walsin part numbers and the two ratings Walsin’s own search hides.