Capacitor design enabling slimmer PCB layouts, automated meeting, and improved reliability for vital EV techniques like chargers, inverters, and battery administration models.
Vishay Intertechnology has launched the business’s first automotive-grade ceramic capacitors with a Y1 security ranking in a surface-mount machine (SMD) casing—marking a shift in how EMI/RFI suppression parts are built-in into electrical and hybrid automobiles.
The important thing specs embrace:
- Dielectric: Y5U, Ceramic Class 2
- Capacitance vary: 470 pF to 4700 pF (±20% tolerance)
- X1 ranking: 760 VAC
- RoHS-compliant and halogen-free development
The brand new capacitors are rated at 500 VAC (Y1) and 1500 VDC, providing capacitance values as much as 4.7 nF. Designed for high-reliability automotive electronics, they aim vital features akin to on-board chargers, traction inverters, battery administration techniques, e-compressors, and AC/DC converters in EVs, HEVs, and PHEVs.
One of many key benefits is their capability to mix Y1 security certification—sometimes discovered solely in cumbersome through-hole capacitors—with a compact surface-mount format. This permits flat, low-profile PCB layouts, helps reflow soldering for automated meeting, and reduces general manufacturing prices. Producers also can leverage bottom PCB mounting, eliminating the clearance constraints of conventional leaded capacitors.
The collection is AEC-Q200 certified with PPAP assist, making it appropriate for automotive-grade compliance. Vishay highlights its strong humidity resistance, with Class IIB certification beneath IEC60384-14 Annex I. Units face up to the rigorous 85/85 take a look at (85°C, 85% RH, 1000 hours), making certain reliability in harsh, moisture-prone environments.
Structurally, the capacitors are constructed round a copper-plated ceramic disc encapsulated in UL 94 V-0 flame-retardant epoxy resin, providing each mechanical sturdiness and security. Two case choices can be found: C case with a ten mm creepage distance and D case with 14.5 mm, assembly stringent insulation and spacing necessities for automotive energy electronics.
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