Enhanced 250Vac and 305Vac
Safety Certified AC Capacitors
Our new range of Enhanced Safety Certified capacitors offers significant advantages over other safety certified MLCC
ranges, including:
• 250Vac class Y2 ranges
• 305Vac class X1 and X2 ranges
• All ranges have a safety certified dc voltage rating (unique in the industry)
• Most ranges are certified as humidity robustness grade III (unique in the industry)
• Approved for mains voltages up to 250Vac 50/60Hz (class Y2) and 305Vac 50/60Hz (classes X1, X2)
• SYX range with DWV withstand to 4kVdc/3kVac – suitable for EV battery systems with high voltage test demands
• SYS range with reduced creepage class Y2 (250Vac)/X1 (305Vac) parts, offering a smaller part for use in equipment within the
scope of IEC62368
• Certification specifications IEC/EN60384-14:2013+A1, UL60384-14 and CAN/CSA E60384-14:1
• CTI ≥ 600
SYX/UYX FAMILY ꢄ Y2 ꢂ250VACꢃ/X1 ꢂ305VACꢃ, 5KV IMPULSE
The Knowles SYX family offers guaranteed 4mm creepage class Y2/X1 safety capacitors, including humidity robustness grade III, 5kV
impulse and a 1kVdc rating approved by TÜV and UL.
In addition, all components are 100ꢀ DWV tested to 4kVdc, and AQL tested to 4kVdc and 3kVac for 60s. This makes the SYX range
ideal for use in high voltage battery systems within electric vehicles.
Unmarked components (UYX suffix) can be offered a 2.5kVdc rating and are designed to comply with, but are not approved to,
EN60384-14.
Dielectric
Approval Body
1808
1812
2211
2215
2220
C0G/NP0 (1B)
X7R (2R1)
TÜV, UL
TÜV, UL
5.6pF - 220pF
82pF – 1.8nF
2.0mm
5.6pF - 820pF
100pF – 4.7nF
2.8mm
4.7pF - 1nF
100pF - 3.9nF
2.8mm
820pF - 1nF
2.7nF – 6.8nF
2.8mm
-
150pF – 6.8nF
2.54mm
Max. Thickness*
Notes: Blue Background = AEC-Q200.
* For lower capacitance values in this family, the maximum part thickness will be lower than the value shown. To find out the maximum thickness for a specific part, please use the Part
Builder or Part Search application on the Knowles website to generate the component datasheet.
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KNOWLES [ KNOWLES ELECTRONICS ]
