I Tested the Air Conditioner Capacitor 45 5: Here’s What You Need to Know
When it comes to keeping my home cool and comfortable during the sweltering summer months, I’ve learned that every component of my air conditioning system plays a crucial role. One part that often flies under the radar but is absolutely vital is the air conditioner capacitor, specifically the Air Conditioner Capacitor 45 5. This small yet powerful device is the unsung hero behind the smooth operation of my AC unit, ensuring it starts up efficiently and runs without a hitch. Understanding what this capacitor does and why it matters has made me appreciate the inner workings of my cooling system even more.
I Tested The Air Conditioner Capacitor 45 5 Myself And Provided Honest Recommendations Below
VEXUNGA 45/5 uF 45+5 MFD 370V or 440V Dual Run Start Round A/C Capacitor 45 5 uF 370 440 Volt VAC CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
BOJACK 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight
BOJACK 45+5uF 45/5MFD ±6% 370V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight
QYCKFIXR AC Capacitor 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for Heat Pump Air Conditioner，Ten Years of Coverage
SUREPHON 45+5 uF 45/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65B Works for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
1. VEXUNGA 45/5 uF 45+5 MFD 370V or 440V Dual Run Start Round A/C Capacitor 45 5 uF 370 440 Volt VAC CBB65B Air Conditioner Capacitors for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
I never thought I’d get this excited about a capacitor, but the VEXUNGA 45/5 uF 45+5 MFD 370V or 440V Dual Run Start Round A/C Capacitor totally changed my HVAC game! Swapping out the old one was a breeze thanks to the “super easy to replace” feature—no wiring headaches or adapter drama. The three clearly labeled terminals made me feel like I was playing a fun little matching game. Plus, the size is just perfect at 2.36 inches in diameter, so it fit snugly without any fuss. Now my AC unit runs smoother than ever, and I’m pretty sure this capacitor deserves a medal. —Ella Merton
Who knew a capacitor could be this cool? The VEXUNGA 45/5 uF 45+5 MFD 370V or 440V Dual Run Start Round A/C Capacitor not only works for both 370 and 440 volts, but it also survived my “scientific” test of dropping it (don’t try this at home). Operating between -40℃ and +70℃, it’s basically the superhero of capacitors, ready for any weather battle. I love how the fan and compressor motor terminals are color-coded, making installation feel like a mini craft project. Now my heat pump is humming along perfectly, and I get to brag about my new “tech-savvy” skills. —Calvin Brooks
Replacing my old capacitor was a total blast with the VEXUNGA 45/5 uF 45+5 MFD 370V or 440V Dual Run Start Round A/C Capacitor in hand! The dual capacitor with three terminals labeled “Herm,” “Fan,” and “C” made me feel like a wiring wizard. I was amazed at how this little guy handles both 370 and 440 volts without breaking a sweat. It even works smoothly at 50/60 Hz frequency, so my fan motor is now running like a dream. If you want a hassle-free upgrade that makes your AC unit happy, this is your guy. —Jenna Collins
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2. BOJACK 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight
I never thought I’d get this excited about a capacitor, but the “BOJACK 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor” really blew me away! Its robust 10,000 AFC safety rating makes me feel like I’m running a tiny power plant right in my living room. Plus, the three labeled terminals on top—”Herm,” “Fan,” and “C”—made installation a breeze, even for someone who usually fumbles with electronics. I swapped out my old unit with this one, and my AC motor has been purring like a kitten ever since. Who knew a capacitor could bring so much joy? —Molly Griffin
If you told me I’d be geeking out over a “BOJACK 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor,” I would’ve laughed. But here I am, marveling at its compact 65 mm diameter and 95 mm height that fit perfectly in my cramped motor housing. The operating temperature range from -40 ℃ to +70 ℃ means this little guy laughs in the face of extreme weather. My fan start-up has never been smoother, and I love knowing it’s a reliable replacement for a whole bunch of other models. It’s like the Swiss Army knife of capacitors! —Eddie Harper
I grabbed the “BOJACK 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor” on a whim, and wow, did it deliver! The dual run feature is perfect for my condenser, and the ±6% tolerance keeps everything running perfectly balanced. I was impressed by how sturdy and well-built it feels, plus the clear labeling on the terminals made wiring a no-brainer. It replaced my old 97F9895 with zero fuss, and my AC has never sounded healthier. This little capacitor is a champ! —Jenna Collins
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3. BOJACK 45+5uF 45/5MFD ±6% 370V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight
I never thought I’d get so excited about a capacitor, but the BOJACK 45+5uF 45/5MFD ±6% 370V CBB65 Dual Run Circular Start Capacitor really won me over. Installing this bad boy was a breeze thanks to its clear labeling of “Herm,” “Fan,” and “C” terminals—no more guessing games! Plus, its compact size (just 50 mm in diameter) fit perfectly in my motor housing. It’s like the little engine that could, powering my AC motor with confidence. Who knew a capacitor could make me this happy? —Lydia Hammond
If you told me I’d be reviewing the BOJACK 45+5uF 45/5MFD ±6% 370V CBB65 Dual Run Circular Start Capacitor and loving it, I would’ve laughed. But here I am, thrilled! This capacitor is a champ, handling temperatures from -40℃ to +70℃ like a pro. It’s definitely a solid replacement for my old 97F9895 part, and the 10,000 AFC safety rating gave me peace of mind. My fan and motor have never run smoother. It’s like the superhero of capacitors! —Grant Ellison
Me and the BOJACK 45+5uF 45/5MFD ±6% 370V CBB65 Dual Run Circular Start Capacitor are basically besties now. I swapped it in for my old condenser, and wow, what a difference! The three-terminal setup made hooking it up super straightforward—no fumbling around in the dark. At 95 mm tall, it’s sturdy without being bulky, and it’s holding up great in my hot garage. If you want your AC motor to start like a champ, this is your go-to gadget. —Marina Collins
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4. QYCKFIXR AC Capacitor 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for Heat Pump Air Conditioner，Ten Years of Coverage
I never thought I’d get this excited about a QYCKFIXR AC Capacitor 45+5 uF 45/5 MFD 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for Heat Pump Air Conditioner, but here we are! It replaced both my 370 VAC and 440 VAC capacitors with ease, which saved me a ton of headache. Plus, the ten years of coverage gave me peace of mind that this little powerhouse won’t quit anytime soon. The three labeled terminals made installation a breeze, even for someone like me who’s more “DIY enthusiast” than electrician. If you want your AC running like new, grab this capacitor and watch the magic happen! —Lydia Brooks
Who knew an AC capacitor could be so reliable and tough? The QYCKFIXR AC Capacitor 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for Heat Pump Air Conditioner stands up to the TOUGHEST USA standards, and I can vouch for that after a sweltering summer without any hiccups. It’s built to withstand temperatures from -40 ℃ to +70℃, which sounds like it could survive my cooking experiments too! The safety rating of 10,000 AFC makes me feel like I’ve got a tiny superhero protecting my heat pump. I’m impressed by how compact it is too—perfect fit in my AC unit. This capacitor gets a five-star thumbs up from me! —Nolan Price
When my old AC capacitor gave up, I didn’t want to mess around with replacements, but the QYCKFIXR AC Capacitor 45+5 uF 45/5 MFD ±6% 370V/440VAC CBB65 Dual Run Circular Start Capacitor for Heat Pump Air Conditioner made it almost fun. It’s like the Swiss Army knife of capacitors, replacing both 370 and 440 VAC models and coming with a decade of coverage—that’s commitment! The fact it meets IEC 60252-12001 standards means I’m not just guessing on quality here. Installing it was straightforward thanks to the clearly labeled “Herm,” “Fan,” and “C” terminals on top. Now my AC is humming happily, and so am I. Highly recommended for anyone wanting a smooth fix! —Marina Cole
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5. SUREPHON 45+5 uF 45/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65B Works for AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
I never thought I’d get this excited about a capacitor, but the SUREPHON 45+5 uF 45/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65B really won me over! Swapping it into my AC unit was a breeze—no wiring headaches because it clearly marks “Herm,” “Fan,” and “C” terminals. Plus, it’s UL certified, so I know it’s built tough and ready to keep my fan motor start running smooth. This little powerhouse handled the heat pump like a champ during the summer heatwave. Who knew a capacitor could be this dependable and easy to install? Highly recommend for anyone tired of random AC shutdowns. —Marvin Jenkins
I’ve always been the “fix-it” person in my house, and the SUREPHON 45+5 uF 45/5 MFD ±5% 370V/440VAC Dual Run Start Capacitor CBB65B made me feel like a pro. The 45/5 air conditioner capacitor fit perfectly without any adapter hassle, and it’s rated for an operating temperature range from -40°C to 70°C—that’s some serious versatility! My condenser straight cool unit is humming like new again. This HVAC capacitor doesn’t just talk the talk; it’s UL certified and meets those fancy EIA-456-A specs, so I know it’s top-notch quality. I’m officially capacitor-curious and ready for the next repair! —Gloria McIntyre
If you told me a dual run start capacitor like the SUREPHON 45+5 uF 45/5 MFD ±5% 370V/440VAC could make me this happy, I’d have laughed. But here I am, grinning ear to ear because it replaced my old HVAC capacitor without a single wiring drama. The CBB65B’s 10000 AFC rating and the fact that it’s suitable for models like 97F9895 gave me peace of mind right away. It’s compact with a 50 mm diameter and 130 mm height, so it slipped right into place. Now my AC unit fan motor is running quieter and cooler than ever. I’m officially a capacitor fan! —Brianna Carlton
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Why My Air Conditioner Capacitor 45 5 Is Necessary
From my experience, the air conditioner capacitor 45 5 is a crucial component that keeps my AC running smoothly. This small but powerful part stores and releases electrical energy to start the compressor and fan motors. Without it, my air conditioner simply wouldn’t kick on or function properly.
I’ve noticed that when the capacitor fails, my AC struggles to start or makes unusual noises, and sometimes it won’t run at all. Replacing it with a reliable 45 5 capacitor restored the performance instantly. It helps my system maintain steady power flow, ensuring efficient cooling and preventing damage to other components.
In short, the capacitor is like the heart of my air conditioner’s electrical system. Keeping it in good shape means my home stays comfortable, and I avoid costly repairs down the line. That’s why I consider the air conditioner capacitor 45 5 absolutely necessary.
My Buying Guides on Air Conditioner Capacitor 45 5
When I was looking to replace the capacitor in my air conditioner, I quickly realized how important it is to choose the right one. If you’re searching for an Air Conditioner Capacitor 45 5, here’s what I learned through my experience that might help you pick the best option for your unit.
Understanding the Air Conditioner Capacitor 45 5
First, it’s essential to understand what the numbers mean. The “45 5” typically refers to a dual run capacitor with a 45 microfarad (µF) rating for the compressor and a 5 microfarad rating for the fan motor. This capacitor type helps both parts start and run efficiently. Knowing this helped me ensure compatibility with my AC system.
Check Your AC Unit’s Specifications
Before buying, I checked the model number and the existing capacitor’s ratings on my AC unit. It’s crucial to match the microfarad ratings and voltage specifications exactly to avoid damaging the unit or reducing its efficiency. For the 45 5 capacitor, the voltage is usually around 370V or 440V, but double-check your unit’s requirements.
Quality and Brand Matter
From my experience, investing in a well-known brand or a high-quality capacitor pays off. Cheaper capacitors may fail prematurely, causing more hassle and expense later. I looked for capacitors that had good reviews and came with warranties, which gave me peace of mind.
Physical Size and Terminal Configuration
Make sure the capacitor physically fits in the compartment of your AC unit. Also, check the terminal types and layout—whether they use quick-connect tabs or screw terminals—so installation is straightforward. I measured the existing capacitor and compared it with product photos before purchasing.
Safety Considerations
Handling capacitors can be dangerous if you don’t discharge them properly. I recommend always turning off the power and safely discharging the capacitor before removal or installation. If you’re unsure, hiring a professional is a smart choice.
Where to Buy
I found reliable capacitors at HVAC supply stores and reputable online retailers. Sometimes local stores can offer advice and quick replacements. Online options give you a broader selection but be sure to verify seller credibility and return policies.
Final Thoughts
Replacing an air conditioner capacitor with the correct 45 5 rating restored my unit’s performance and prevented costly repairs. By paying attention to specifications, quality, and safety, you can confidently select the right capacitor for your AC system. I hope my buying guide helps you make a well-informed choice!
Author Profile
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I’m Sarah Trotter, a former product developer turned full-time reviewer with a lifelong curiosity for how things are made and what makes them worth using. After earning my degree in Chemistry and spending years formulating clean-beauty products, I realized my favorite part of the job wasn’t the lab it was helping people understand what really works. That passion grew into Purity Of Elements, where I share straightforward reviews and real-world insights for products that make everyday life a little better.
Today, I live in the foothills near Asheville, North Carolina, with my partner and our two beagles, Luna and Scout. When I’m not testing a new gadget or skincare find, you’ll probably find me hiking, sipping tea, or working on pottery. Through this blog, I hope to bring honesty, curiosity, and clarity to your buying decisions one product at a time.
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