A chip capacitor is a tiny, leadless electronic component that stores electrical energy, designed for Surface Mount Technology (SMT) by mounting directly on to circuit boards, commonly appearing as multilayer ceramic (MLCC) types used for applications like filtering, decoupling, and energy storage in modern electronics. They are essentially miniature capacitors, often rectangular, with dimensions indicating their rating and they are vital for compact designs thanks to their small sizes and high performance. BEC produces all series of chip capacitors for industrial and automotive applications. The dimension covers from 0201 to 2220. Chip capacitors are playing a more and more important role in current AI areas.
Basic Parameters
|
Product Category |
Chip MLCC capacitor |
|
Capacitance Range |
0.5pF~220UF |
|
Voltage Range |
6.3V~4000V |
|
Working Temperature |
-55℃~125℃ |
|
Tolerance |
0.1PF, 0.25PF, 0.5PF, ±1%, ±5%, ±10%, ±20% |
|
Certificate |
RoHS, REACH |
|
Applications |
Consumer electronics, automotive industry, medical devices, telecom equipment, AI applications |
Characteristics
Miniaturization & High Density: Alternately multilayer thin ceramic dielectric layers and internal metal electrodes enable ultra-small form factors while achieving far higher capacitance values than single-layer ceramic capacitors (SLCCs) of the same size. Capacitance can reach up to 220μF in compact packages.
Temperature Coefficient of Capacitance (TCC)
The single most important metric for temperature stability, defined by the dielectric:
C0G/NP0 (Class 1 dielectrics): Near-zero TCC (±30ppm/°C from -55°C to +125°C), ultra-stable capacitance with no significant drift across temperature.
X7R/X5R (Class 2 dielectrics): Moderate stability (X7R: -55°C~+150°C, ΔC/C ≤±15%; X5R: -55°C~+85°C, ΔC/C ≤±15%)-balance of stability and capacitance density, for consumer electronics.
Y5V/Z5U (Class 2 low-stability dielectrics): Poor temperature stability (Y5V: -30°C~+85°C, ΔC/C ≤+20%/-80%)-highest capacitance density at the cost of stability, for non-critical low-frequency circuits.
Mechanical Robustness: Sintered ceramic body with high hardness and resistance to mechanical shock or vibration. The hermetic structure prevents moisture/dust intrusion, with good mechanical stability in harsh assembly and operating conditions.
Production Process
Parts of Our Production Facilities
FAQ
Q1: How to choose the right MLCC dielectric grade for my circuit?
A1: Select based on circuit performance requirements (stability, frequency, temperature) and cost:
C0G/NP0: Precision RF, oscillators, filters, aerospace and defense (zero capacitance drift allowed).
X7R: Automotive, industrial equipment, mid-precision decoupling/filtering circuits.
X5R: Consumer electronics (phones, laptops, TVs)
Y5V/Z5U: Low-cost, non-critical circuits (basic power bypassing, low-precision low-frequency designs).
Q2: What do the MLCC dielectric codes (C0G/NP0, X7R, X5R, Y5V) stand for?
A2: The codes follow the EIA/JEDEC standard and are defined based on the two key traits:
First letter/number: Temperature Coefficient of Capacitance (TCC) for Class 1 (C0G/NP0) or the lower temperature limit for Class 2 (X=-55°C, Y=-30°C, Z=+10°C).
Middle number: Upper temperature limit (5=+85°C, 7=+150°C, 8=+125°C).
Last letter: Maximum capacitance change (ΔC/C) over the temperature range (R=±15%, V=+20%/-80%, U=+22%/-56%).
NP0 is the old military designation for C0G-they are functionally identical (near-zero TCC, ±30ppm/°C).
Q3: How to select the correct voltage ratings?
A3: Follow the derating rule (industry standard), at the same time account for circuit transients:
For DC circuits: Select a voltage rating at least 2 times of the maximum applied DC voltage.
For AC/ripple circuits: Add the peak AC voltage to the DC voltage, then derate by 50%.
For high-temperature/automotive applications: Derate an additional 20-30%.
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