C0805

SMD MLCC Capacitors | C0805 Series

Product Introduction

C0805 Series (0805 imperial / 2012 metric) is YQM ELECTRONICS' industrial-grade SMD MLCC lineup, featuring a robust 2.0×1.25 mm footprint. Designed for applications demanding higher voltage ratings, better heat dissipation, and greater mechanical reliability than smaller MLCC sizes, the 0805 series is widely deployed across industrial control systems, automotive electronics, power management modules, and LED lighting drivers.

Capacitance ranges from 0.2 pF to 10 μF with rated voltages spanning 2.5 V to 1000 V DC. The larger physical volume of the 0805 package provides significantly better DC bias characteristics — maintaining a higher percentage of rated capacitance under actual operating voltage, which is crucial for stable power supply performance. Available in COG (NP0), X7R, and X5R dielectrics. RoHS/REACH compliant, 260 °C reflow compatible, AEC-Q200 options available.

Core Advantages

• Industrial-Grade 0805 Footprint: 2.0×1.25 mm — larger form factor providing superior thermal dissipation, higher voltage withstand, and robust mechanical reliability for demanding industrial and automotive applications.
• High Voltage Capability: Rated up to 1000 V DC — ideal for power supply filtering, DC-link circuits, snubber networks, and high-voltage isolation barriers where smaller MLCC sizes cannot meet voltage requirements.
• Superior DC Bias Performance: Larger dielectric volume minimizes capacitance drop under DC bias — critical for precision analog circuits, power rail decoupling, and applications requiring stable capacitance at operating voltage.
• Better Thermal & Ripple Current: Larger terminal area enables higher ripple current handling and improved heat dissipation — essential for switching power supply output filtering and high-current decoupling.
• AEC-Q200 Automotive Available: Automotive-grade variants with full PPAP documentation for on-board chargers, DC-DC converters, and engine control units requiring extended temperature and reliability testing.

Key Features

Applications

FAQ

Q: When should I choose 0805 over smaller MLCC sizes like 0603 or 0402?

A: Choose 0805 when: (1) operating voltage exceeds 100 V; (2) DC bias capacitance stability is critical — the larger 0805 dielectric volume maintains a higher percentage of rated capacitance under bias; (3) higher ripple current handling is needed for power supply filtering; (4) mechanical robustness is required for harsh vibration environments. For general low-voltage digital decoupling, 0603 or 0402 may be more space-efficient.

Q: Is C0805 available with 1000 V rating?

A: Yes. C0805 offers rated voltages up to 1000 V DC in X7R dielectric. These high-voltage variants are suitable for snubber circuits, DC-link capacitors, and high-voltage filtering. Always follow derating guidelines — typically operate at ≤50% of rated voltage for maximum long-term reliability.

Q: Can C0805 replace leaded film or ceramic disc capacitors?

A: In many cases, yes. C0805 SMD MLCCs with 500–1000 V ratings can replace through-hole film or ceramic disc capacitors, enabling fully surface-mount assembly, reducing PCB size, and improving manufacturing efficiency. Verify capacitance stability under DC bias for your specific application.

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