A CA45 SMD tantalum capacitor produced by BEC is designed specifically for today's highly automated surface mount processes and equipment, is the leading choice for surface mount designs. It's characterized by higher capacitance in smaller package, offering stable performance, low ESR (Equivalent Series Resistance) for power filtering. This series of product mee or exceed the requirements of EIA standard 535BAAC. It's designed to be soldered directly onto the surface of a printed circuit board, enabling miniaturization. Known for low ESR, high stability, and long life, ideal for decoupling and energy storage. SMD tantalum capacitors are widely used in consumer electronics like mobile phones and laptops. They are also used in automotive and medical industry. You can also see the applications in telecommunications.
Basic Parameters
|
Product Category |
CA45 SMD tantalum capacitor |
|
Capacitance Range |
0.1UF~680UF |
|
Voltage Range |
4V~50V |
|
Working Temperature |
-55℃~125℃ |
|
Tolerance |
±5%, ±10%, ±20% |
|
Certificate |
RoHS, REACH |
|
Applications |
Automotive industry, consumer electronics, medical devices, telecommunications, aerospace industry |
Characteristics
High Capacitance Density: compared with other alternative capacitors, this series of products offer significantly higher capacitance per unit volume. For instance, a case code A (3.2×1.6×1.6mm) package can achieve 10μF, making it ideal for miniaturized electronics.
Low Equivalent Series Resistance (ESR): ESR values normally ranges from 0.5mΩ to 50mΩ (at 100kHz, 25℃), enabling superior filtering, decoupling, and ripple suppression in high-frequency circuits (kHz range).
Stable Capacitance Performance: it has almost the same performance like MLCC's NP0/COG dielectrics in temperature stability, with minimal capacitance drift (-55℃ to +125℃ for industrial grade). Low leakage current (≤0.01CV or 1μA, whichever is larger) ensures long-term reliability.
Voltage Limitation: Standard rated voltages range from 6.3V to 50V (63V for some special usages), requiring strict derating (recommended working voltage not more than 70% of rated voltage, or 50% for some critical applications).
Production Process
Parts of Our Production Facilities
FAQ
Q1: What is an SMD tantalum capacitor, and how is it different from through-hole tantalum capacitors?
A1: SMD tantalum capacitor is a chip type tantalum capacitor for SMT (Surface Mount Technology) assembly, soldered directly to the PCB surface. Unlike through-hole tantalum capacitors which has no leads, it has relatively smaller size, higher integration, and automated soldering compatibility. It is now the mainstream type for modern miniaturized electronic products, while through-hole types are only used in a limited number of plug-in circuit scenarios.
Q2: Why do SMD tantalum capacitors have polarity? How to identify the positive/negative poles?
A2: SMD tantalum capacitors are polarized components because their anode and cathode have a fixed electrochemical structure-reverse voltage application will damage the Ta₂O₅ dielectric film and cause short circuit and a failure.
Polarity identification methods (all marked on the package):
Color strip marking: A black or a white or a pink color strip on the package indicates the positive pole (it's the most common marking method).
Text marking: The code "+" is printed on the positive pole side to tell a positive side and a negative side.
Q3: In what occasion can SMD tantalum capacitors be replaced by MLCC or SMD electrolytic capacitors?
A3: What if a replacement happens is mainly based on circuit requirements, cost, and space-typical scenarios:
Replaced by MLCC capacitors: Low-capacitance, high-frequency, high-voltage circuits (MLCC has lower ESR, smaller size, no polarity); While MLCC has larger capacitance tolerance and poor low-voltage large-capacitance performance.
Replace by SMD electrolytic capacitors: Low-cost, large-capacitance, low-frequency circuits like a household appliance filter. While SMD electrolytic capacitors have higher ESR, larger size, and shorter service life.
Please specially note: Do not replace SMD tantalum capacitors with MLCC or SMD electrolytic capacitors in high-reliability, high-current, or low-power precision circuits.
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