CA45 Series – Compact, Reliable Tantalum Capacitors Built for Versatility

I. Product Overview

If you're looking for a stable, space-saving SMD capacitor that plays well with both consumer and industrial applications — especially for things like DC/DC converters or LDO circuits — our HONGDA CA45 series might be just what you need.

II.  Key Technical Parameters

(I) Electrical Performance Parameters

(II) Physical Characteristics

III. Application

 Consumer Electronics Field

1.Phones/Tablets: Commonly used in battery management systems (10μF/4V or 16μF/6.3V)

2.Laptops: Helps stabilize DC/DC conversion (33μF/10V or 47μF/16V are often used)

3.Smart Home Devices: Great for low-power circuits like speakers and sensors (10μF/2.5V or 50μF/6.3V)

IV. Selection Guide: How to Precisely Match CA45 Models?

(I) Step 1: Define Cap Value & Voltage:

If you're designing a filtering circuit, you’ll usually be looking at 10–100μF. For bulk energy storage, go higher (up to 1000μF).
Also, make sure the rated voltage is at least 20% higher than your actual working voltage.

Example: Got a 5V rail? Go with 6.3V or 10V.

(II) Step 2: Pick the Package Size:

1.Tight on space? Use Type A/B (1206/1210)

2.High power or thermal load? Go for D/E/V (2917, 7343, etc.)

(III) Step 3: Factor in Conditions:

1.High-temp environment (like under the hood)? Choose models rated to 125°C and apply voltage derating.

2.High-frequency designs? Look at ESR. For example, our CA45D337#002R has a 0.3Ω ESR at 25°C — perfect for fast-switching circuits.

V. Tips for Best Results

1.Don’t test with a multimeter — tantalum caps are DC-sensitive. Use an LCR meter at 100Hz/1.0V.

2.When checking leakage current, wait 5 minutes after applying voltage before reading the value.

3.Specs may get updated as we improve — always grab the latest datasheet here: https://www.hongdacapacitors.com/res/Tantalum-Capacitors/ca45-chip-tantalum-capacitors--standard-.pdf

VI. Quick Reference Table of Typical Models and Parameters

Have questions or want to discuss a specific use case? Feel free to reach out — we’re always happy to help.

Contact information: max@hongdacap.com.hk  MP/whatsapp:+86 18188830464