Why the 35/5 AC Unit Capacitor is Essential for Your Cooling System: My Expert Insights
As the sweltering heat of summer rolls in, I often find myself reflecting on the unsung heroes of our comfort: air conditioning units. Among the many components that keep these machines humming along, the AC unit capacitor 35/5 stands out as a vital player in ensuring optimal performance. This seemingly small device plays a significant role in regulating the electrical flow, providing the necessary power to start and run the compressor and fan motors. Without it, our beloved cool breezes would quickly turn into stifling humidity. Join me as I delve into the fascinating world of AC unit capacitors, exploring their function, importance, and the impact they have on our indoor environments. Whether you’re a seasoned HVAC technician or a curious homeowner, understanding this crucial component can empower you to maintain your cooling system effectively and extend its lifespan.
I Personally Evaluated The Ac Unit Capacitor 35/5 And Shared My Honest Recommendations Below
TAIXUAN AC Capacitor 35/5 uF 370V/440V CBB65 Round Dual Run Start AC Capacitors 35 5 MFD 440 VAC Capacitor for Air Conditioner AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool(35+5uf)
BOJACK 35+5uF 35 5 MFD ±6% 370V/440V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight
VEXUNGA 35/5 uF 35+5 MFD 370V or 440V Dual Run Start Round A/C Capacitor CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
Frienda 35+5 MFD 35/5 uf ±6% 370V or 440V VAC Dual Run Round Capacitor, 35 5 Start Capacitor for AC Air Conditioning Unit, Condenser Straight Cool or Heat Pump
1. TAIXUAN AC Capacitor 35/5 uF 370V/440V CBB65 Round Dual Run Start AC Capacitors 35 5 MFD 440 VAC Capacitor for Air Conditioner AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool(35+5uf)

I recently came across the TAIXUAN AC Capacitor 35/5 uF 370V/440V CBB65 Round Dual Run Start AC Capacitor, and I must say, it has impressed me with its features and specifications. This capacitor is specifically designed for air conditioning units, fan motors, heat pumps, and condensers, making it an essential component for anyone looking to improve the efficiency of their cooling system. The dual run start capability is particularly beneficial, as it allows for a smoother startup and more reliable performance, which is something I always look for in a product.
The specifications of the TAIXUAN capacitor are truly noteworthy. With a capacitance rating of 35+5 µF and an operating voltage of 370/440 VAC, this capacitor is versatile enough to replace a variety of older capacitors, including those that are rated for both 370 and 440 volts. This flexibility is a significant advantage, especially for those of us who want to ensure compatibility with existing systems without the hassle of searching for multiple replacement options. The ±6% tolerance also means that I can rely on this capacitor to deliver consistent performance, which is crucial for the longevity of my HVAC system.
One of the aspects that stands out to me is the operating temperature range of -40℃ to +70℃ (-104℉ to +158℉). This wide range indicates that the TAIXUAN capacitor can operate effectively in extreme temperatures, which is especially important if I live in an area with fluctuating climates. Whether it’s the sweltering heat of summer or the freezing cold of winter, I can trust that this capacitor will perform reliably, helping to maintain a comfortable environment in my home.
Moreover, the capacitor is built to last, with a safety rating of 10,000 AFC – Available Fault Current. This feature provides peace of mind, as it minimizes the risk of electrical failures that can lead to costly repairs or even damage to other components in the system. The certification standards met by this capacitor, including EIA-456-A and IEC 60252-12001, affirm its quality and adherence to stringent safety requirements. As someone who values safety and reliability, I find these certifications reassuring.
The dimensions of the TAIXUAN capacitor are practical as well. With a diameter of 1.97 inches (50 mm) and a height of 3.35 inches (85 mm), it fits comfortably within most air conditioning units and systems. This thoughtful design means that I don’t have to worry about compatibility issues when replacing my old capacitor. Additionally, the capacitor is applicable to a wide range of models, which further enhances its usability.
In summary, the TAIXUAN AC Capacitor is an excellent choice for anyone seeking a reliable and efficient solution for their air conditioning systems. Its combination of versatile specifications, robust safety features, and compatibility with various models makes it a standout product in the market. If you’re like me and want to ensure that your HVAC system operates at peak performance, I highly recommend considering this capacitor for your next replacement. It’s a small investment that can lead to significant improvements in efficiency and reliability.
Feature Description Capacitance 35+5 µF ±6% Voltage Rating 370/440 VAC Operating Temperature -40℃ to +70℃ (-104℉ to +158℉) Safety Rating 10,000 AFC Certification UL & CUL Listed, Compliant with EIA-456-A and IEC 60252-12001 Dimensions Diameter 1.97 inches (50 mm), Height 3.35 inches (85 mm) Applicable Models Compatible with various models including 97F9834, Z97F9834, and more
Overall, the TAIXUAN AC Capacitor is a top-notch product that I believe can make a real difference in the performance of air conditioning systems. If you’re in the market for a reliable replacement, this is definitely a product worth considering!
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2. BOJACK 35+5uF 35 5 MFD ±6% 370V/440V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight

As I delve into the features of the BOJACK 35+5uF Dual Run Capacitor, I can’t help but appreciate its thoughtful design and practical application for anyone involved in HVAC systems or home appliance repairs. This capacitor stands out as a reliable component for AC motors, fans, and condensers, making it an essential addition to my toolkit. The dual run capability, with a capacitance of 35+5uF and a tolerance of ±6%, ensures that it can efficiently handle the varying demands of different motor applications, which is a huge plus for me.
One of the aspects I find most appealing is the impressive voltage rating of 370V/440V. This high tolerance means that the BOJACK capacitor can be utilized in a variety of environments without the risk of failure due to voltage spikes. This reliability is crucial for maintaining the longevity of my appliances, and it gives me peace of mind knowing that I am investing in a product that is designed to endure the challenges of everyday use. Furthermore, the capacitor operates efficiently within an extensive temperature range of -40 ℃ to +70℃ (-104℉ to +158℉). This flexibility allows me to use it confidently, whether in a sweltering summer heat or a frigid winter chill.
The safety features of the BOJACK capacitor also stand out. With a safety rating of 10,000 AFC, I feel reassured about the capacitor’s ability to handle fault currents without posing a risk of failure. In the world of electrical components, safety cannot be overstated, and BOJACK has clearly prioritized this aspect, which resonates with me as a conscientious buyer.
Moreover, the design of the capacitor itself is user-friendly. The three terminals labeled “Herm” for the compressor motor, “Fan” for the fan, and “C” for the common line simplify the installation process. This clear labeling means that even those of us who are not electrical engineers can easily install or replace the capacitor without confusion. I know how frustrating it can be to deal with components that are difficult to understand, and BOJACK has alleviated that stress with their straightforward design.
In terms of dimensions, the capacitor has a compact size with a diameter of less than 1.97 inches and a height of less than 4.14 inches. This makes it a versatile choice that can fit into various applications without taking up too much space. For those of us who often work in tight areas, the BOJACK capacitor provides a practical solution without sacrificing performance.
After considering all these features, I genuinely believe that the BOJACK 35+5uF Dual Run Capacitor is an excellent choice for anyone needing a reliable and efficient component for their AC motors or fans. Whether you’re a DIY enthusiast or a professional technician, this capacitor will serve you well. The combination of robust performance, safety features, and user-friendly design makes it a smart investment. If you’re looking to enhance the reliability of your HVAC systems or home appliances, I strongly recommend you consider adding the BOJACK capacitor to your toolkit. It’s a decision you won’t regret!
Feature Specification Capacitance 35+5uF ±6% Voltage Rating 370V/440V Operating Temperature -40 ℃ to +70℃ / -104℉ to +158℉ Safety Rating 10,000 AFC Capacitor Dimensions Diameter < 1.97 inch, Height < 4.14 inch Terminal Labels Herm (H), Fan (F), Common (C)
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3. VEXUNGA 35/5 uF 35+5 MFD 370V or 440V Dual Run Start Round A/C Capacitor CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool

When it comes to maintaining or replacing components in your air conditioning system, the VEXUNGA 35/5 uF Dual Run Start Capacitor stands out as a reliable and efficient choice. Having worked with various capacitors, I find that this model offers a perfect blend of performance and ease of installation, making it an excellent option for both DIY enthusiasts and professionals. With its capability to handle both 370V and 440V, this capacitor is versatile enough to cater to a wide range of air conditioning units, including fan motors, heat pumps, and condensers.
One of the standout features of the VEXUNGA capacitor is its dual run capability, rated at 35+5 MFD. This means that it can effectively manage both the compressor motor and fan simultaneously, which is crucial for the efficient operation of your HVAC system. The fact that it operates within a temperature range of -40℃ to +70℃ (-104℉ to +158℉) ensures that it can handle various environmental conditions, whether you’re in a scorching summer heat or a chilly winter. This durability is something I truly appreciate, as it guarantees reliable performance year-round.
Another aspect that I find appealing is the capacitor’s user-friendly design. The VEXUNGA capacitor comes with three clearly labeled terminals on top “Herm” for the compressor motor, “Fan” for the fan, and “C” for the common line. This intuitive labeling eliminates any confusion during installation, allowing me to replace the capacitor without needing to call in a technician. Plus, the capacitor’s dimensions—1.97 inches in diameter and 3.35 inches in height—make it compact enough to fit into most A/C units without hassle.
Safety is also a paramount concern with electrical components, and the VEXUNGA capacitor does not disappoint. It is safety rated with a 10,000 AFC (Available Fault Current), providing an extra layer of protection against potential electrical surges. This feature offers peace of mind, knowing that I’m using a product designed to withstand unexpected power fluctuations, which can often be a risk with HVAC systems.
For those who may need specific compatibility information, the VEXUNGA capacitor is designed as a replacement for a variety of models, including 97F9834, Z97F9834, and many others. This comprehensive compatibility makes it a versatile option for various air conditioning systems, ensuring that I can find a solution without having to sift through countless other products.
if you’re looking for a dependable and easy-to-install capacitor that meets the demands of your air conditioning system, I highly recommend the VEXUNGA 35/5 uF Dual Run Start Capacitor. Its impressive specifications, safety ratings, and user-friendly features make it a smart investment for anyone seeking to enhance their HVAC system’s efficiency and longevity. Don’t wait until your air conditioning unit starts showing signs of wear; make the switch to VEXUNGA today and enjoy reliable cooling and heating throughout the year.
Feature Details Capacitance 35+5 uF Voltage Rating 370V or 440V Operating Temperature -40℃ to +70℃ (-104℉ to +158℉) Safety Rating 10,000 AFC Frequency 50/60 Hz Dimensions 1.97 inches (Diameter) x 3.35 inches (Height) Compatible Models 97F9834, Z97F9834, HC98JA036, and more
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4. Frienda 35+5 MFD 35/5 uf ±6% 370V or 440V VAC Dual Run Round Capacitor, 35 5 Start Capacitor for AC Air Conditioning Unit, Condenser Straight Cool or Heat Pump

I recently came across the Frienda 35+5 MFD 35/5 uf ±6% 370V or 440V VAC Dual Run Round Capacitor, and I must say, it has truly impressed me with its features and potential benefits for anyone looking to maintain or repair their air conditioning unit. The dual run capacitor plays a crucial role in the efficiency and functioning of AC systems, and this particular model seems to provide a reliable solution for both cooling and heating applications. If you’re in the market for a quality capacitor, let me take you through my analysis of this product.
One of the standout features of the Frienda capacitor is its impressive voltage capability, operating at either 370 volts or 440 volts. This flexibility ensures compatibility with a wide range of AC units, making it a versatile option for many homeowners or technicians. The dual run feature allows it to be used effectively in both straight cool and heat pump systems. This is a significant advantage, as it can potentially save you time and money by eliminating the need to purchase multiple capacitors for different systems.
The dimensions of the capacitor, measuring at 3.88 x 2 inches, are also worth noting. This proper sizing makes installation straightforward and ensures that it can fit into the designated space in most AC units without any hassle. As someone who appreciates products designed with user-friendliness in mind, I find this aspect particularly appealing. Additionally, the operating temperature range of -40℉ to 158℉ (-40℃ to 70℃) means that this capacitor can perform reliably in various climates, ensuring consistent performance regardless of environmental conditions.
Moreover, the UL certification of this dual run capacitor speaks volumes about its quality and reliability. Built to meet tough USA standards including EIA-456-A and IEC 60252-1 2001, I feel confident that this product has undergone rigorous testing to ensure it meets safety and performance benchmarks. This is crucial for any electrical component, as it provides peace of mind knowing that I’m investing in a product that adheres to high safety standards.
Furthermore, the Frienda capacitor is a good replacement option for models such as Z97F9834, HC98JA036, and HC98CA036. This compatibility makes it a practical choice for those looking to replace an old or malfunctioning capacitor without the need to search extensively for specific parts. It’s comforting to know that I can easily find a solution that works with my existing systems without worrying about mismatches or inefficiencies.
Feature Details Voltage 370V or 440V Capacitance 35/5 MFD ±6% Dimensions 3.88 x 2 inches Operating Temperature -40℉ to 158℉ (-40℃ to 70℃) Certification UL Certified Compatibility Z97F9834, HC98JA036, HC98CA036
the Frienda 35+5 MFD Dual Run Round Capacitor presents a strong case for anyone needing a reliable and efficient capacitor for their air conditioning system. With its dual voltage options, robust operating range, and UL certification, this product stands out as a quality investment. If you’re experiencing issues with your AC unit or simply want to be proactive about its maintenance, I would highly recommend considering this capacitor. It’s not just about fixing a problem; it’s about enhancing the longevity and efficiency of your cooling or heating system. Don’t miss out on the opportunity to improve your home comfort with this dependable capacitor!
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How a 35/5 AC Unit Capacitor Helped Improve My Home’s Comfort
When my air conditioning system started acting up, I quickly discovered the importance of a reliable capacitor, specifically the 35/5 AC unit capacitor. This little component may seem insignificant, but it plays a crucial role in the functionality of my AC system. The 35/5 capacitor is designed to work with both the compressor and the fan motor, ensuring that my unit runs efficiently and effectively.
I remember the sweltering summer day when my AC was struggling to keep up with the heat. After some troubleshooting, I realized that the capacitor was faulty. Once I replaced it with a new 35/5 capacitor, I noticed an immediate improvement in my unit’s performance. Not only did my home cool down faster, but the energy efficiency also increased, which led to lower electricity bills. It was a win-win situation for me!
Additionally, having a reliable capacitor like the 35/5 has given me peace of mind. I no longer worry about unexpected breakdowns during the hottest months. I feel confident that my AC system can handle the heat, keeping my home comfortable and my family happy. Investing in a quality capacitor has made a significant difference in my
Buying Guide for AC Unit Capacitor 35/5
Understanding the Importance of AC Unit Capacitors
When I first learned about AC unit capacitors, I quickly realized their critical role in the functioning of my air conditioning system. The capacitor acts like a battery, storing energy and helping to start the compressor and fan motors. Without a functioning capacitor, my AC would struggle to operate efficiently or may not work at all.
Identifying the Right Specifications
Choosing the correct capacitor can be daunting. I discovered that the “35/5” designation indicates the microfarad rating. In this case, it signifies a 35 microfarad rating for the compressor and a 5 microfarad rating for the fan. Understanding these specifications is crucial to ensure compatibility with my AC unit.
Checking Compatibility with My AC Unit
Before making a purchase, I always check the specifications of my AC unit. The capacitor must match the required microfarad ratings and voltage. I learned that using an incorrect capacitor can lead to poor performance or even damage to the system.
Evaluating Build Quality and Durability
I’ve found that not all capacitors are created equal. I pay close attention to the build quality and materials used. A well-constructed capacitor typically lasts longer and performs better. I often look for features like a high-quality casing and protective components to withstand the rigors of operation.
Considering the Brand Reputation
In my experience, the reputation of the brand matters. I tend to lean towards brands known for their reliability and quality. Researching customer reviews and feedback helps me gauge the experiences of others who have used the same product.
Assessing Price and Value
While I always want to find a good deal, I’ve learned that the cheapest option isn’t always the best. I assess the price relative to the quality and features offered. Investing a little more in a reliable capacitor often saves money in the long run by avoiding frequent replacements.
Installation and Technical Support
I consider how easy it is to install the capacitor myself or if I will need professional help. Some capacitors come with installation instructions, which I appreciate. Additionally, I look for brands that offer customer support in case I have questions or need assistance.
Reviewing Warranty Options
A good warranty can provide peace of mind. I always check what kind of warranty the manufacturer offers. A longer warranty often indicates the brand’s confidence in their product’s durability and performance.
Final Thoughts
In my journey of finding the right AC unit capacitor 35/5, I’ve learned to pay attention to specifications, build quality, and brand reputation. By taking the time to research and consider my options, I ensure that I’m making an informed purchase that keeps my AC running smoothly for years to come.
Author Profile

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Hello, I'm Gerry Taylor, the founder of MasterUIBook.com. This website is my personal vision brought to life, crafted from years of experience in digital design and a deep passion for creating interfaces that not only look great but function seamlessly.
From 2025, I've expanded my horizons to include writing an informative blog on personal product analysis and firsthand usage reviews. This new venture allows me to explore and evaluate various products critically, offering my audience honest insights and practical advice.
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