We've all heard of X2 capacitors, but there's only one series that can withstand harsh environments - the WFC-A THB X2 series. It is a capacitor that passes the 85℃, 85% relative humidity (double 85) humidity and heat resistance test. Do you know where to use it?
INTRODUCTION
High-reliability home appliances
THB X2 series is used in the electronic control units of high-temperature and high-humidity home appliances such as dishwashers and disinfection cabinets.
Outdoor electrical equipment
It applies to outdoor LED street lamp power supplies and outdoor charging pile control modules.
These devices operate outdoors for long periods, exposed to high temperatures, high humidity, and heavy rain and snow, which accelerate the aging of ordinary capacitors.
Automotive electronics.
THB grade X2 film capacitor is adopted in the filter circuits of on-board chargers and battery management systems (BMS) for new energy vehicles.
The engine compartment is characterized by high temperature and humidity, coupled with extremely high safety requirements.
Free samples of the WEET WFC-A THB X2 series are available upon request. Please contact our sales team if you have any needs.
More details: WEET-WFCA-THB-X2-85C-Metallized-Polypropylene-Film-Capacitor-275V-305V-310VAC
WEE Technology Published On Jan 16, 2026
The WEET 305V 85/85 X2 Capacitor is a best-selling capacitor, all thanks to its inherent characteristics. So do you know why 85/85 X2 Capacitor is highly effective and durable?
INTRODUCTION
First, let WEET introduce its features.
It consists of a non-inductive grey plastic shell and grey epoxy resin. WFC-A outstanding THB capacitor reliability allows it to be connected in series for high-stability applications—such as watt-hour meters, LED drivers - and it can even maintain high stability in extremely harsh environments.
85/85 X2 Capacitor Specifications
Operating Temperature: -40°C ~ +110°C
Capacitance Range: 0.0047 ~ 10.0 μF
Rated Voltage: 275V, 305V, 310VAC
Packaging: Bulk & Tape-and-Reel
Capacitance Tolerance: ±10%
Notes:
85/85 X2 Capacitors pins are available in different lengths, and customization is available according to your specific requirements.
WEET WFCA THB 85 ℃ 85% X2 Metallized Polypropylene Film Capacitor 275V 305V 310VAC
Contact us: Sales@weetcap.com
WEE Technology Published on Jan 9, 2026
It is a component that integrates both a resistor and a capacitor, and is generally referred to as an X2 RC network.
So how can we judge X2 safety capacitor RC quality?
INTRODUCTION
The core method is to verify its capacitor section and built-in resistor section separately, combined with a visual inspection.
The commonly used tool is a digital multimeter.
Below are the detailed steps:
1. Visual Inspection
Check the appearance of the X2 Safety Capacitor RC for signs of cracking, deformation, or charring.
Examine whether the pins have issues such as severe oxidation, corrosion, or breakage.
Verify if the specification parameters on the surface are illegible.
2. Testing the X2 Safety Capacitor RC Built-in Resistor
The resistance value of the built-in resistor in an X2 RC snubber for AC power typically ranges from 1MΩ to 10MΩ.
Touch the two pins of the component with the probes of the digital multimeter respectively.
If the displayed resistance value matches the nominal value or the deviation is within ±10%, the resistor section is in normal condition.
3. Insulation Test
Touch the X2 Safety Capacitor RC two pins with the multimeter probes.
If the display shows OL, the insulation is good and there is no leakage.
If a numerical value is displayed and the buzzer sounds, the capacitor has leakage and is unfit for use.
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WEE Technology Published on Dec 26, 2025
I believe everyone is familiar with X2 capacitors, but have you ever seen an X2 capacitor with a built-in resistor? How much do you know about RC Unit X2 Film Capacitors?
Introduction
RC Unit X2 Film Capacitors refer to X2 metallized film safety capacitors with integrated resistors.
They are integrated RC components that combine X2 film capacitors and resistors in a single package.
X2 Snubber Capacitor Details:
Rated Voltage: 275VAC
Capacitance Range: 1.0Μf
Capacitance Tolerance: ±10% (K)
Operating Temperature: -40℃～100℃
Tin-plated Wire Length: 40±5mm
X2 Snubber Capacitor Encapsulated in a flame-retardant plastic case with radial leads, these capacitors facilitate easy PCB mounting and comply with RoHS and environmental requirements.
RC Unit X2 Film Capacitors Standard Dimensions: L: 31.5mm, T: 10.8mm, H: 19.5mm
Customization is available. Please feel free to contact us if you have any custom requirements.
Contact us:Sales@weetcap.com
WEE Technology Published on Dec 19, 2025
What is the price of MKT Foil Capacitor 12uF? This is one of the top concerns for audio enthusiasts. However, the price of WEET WML Compact MKT capacitors is actually influenced by a variety of factors.
INTRODUCITON
Capacitor Specifications and Parameters: Capacitance and voltage rating are key influencing factors. Generally, the larger the capacitance, the more materials are required, and the higher the price. The same applies to the voltage rating. Additionally, it should be noted that the package size also affects the price.
Raw Material Costs: Price fluctuations of capacitor raw materials, such as metallized electrode materials and polyester films, directly impact the production cost.
Purchase Quantity: Typically, the larger the purchase quantity, the lower the unit price.
Policy and Environmental Factors: Government environmental policies may increase the production costs of enterprises. To comply with these regulations, enterprises need to invest more funds in environmental protection equipment and measures, and these costs are ultimately reflected in the product price.
SUMMARY
Based on the above analysis, the price of MKT capacitors is not fixed; It can be expensive at times and cheaper at others. However, WEET has consistently maintained a trend of high cost-effectiveness (can compete with Audyn MKT axial 12uF 160V Capacitors).
In addition, WEET has specifically upgraded the product size to make better use of PCB board space. We provide a small size for 100uF capacitors to support your compact PCB board design and allows for stacked installation to save space.
Contact Information:Sales@weetcap.com
WEE Technology Published on Oct 24, 2025
When space on your PCB is extremely limited and cannot accommodate large capacitors, it is time for the compact MKT decoupling capacitor to play its role!
INTRODUCTION
WEET WML KONDENSATOR 2.7uF 6.8uF 15uF 160V MKT
Features:
Using metallized polyester film as the medium, it is wrapped and sealed with flame-retardant plastic and epoxy resin. It features high temperature resistance, small size, large capacity and excellent self-healing property.
Compared with electrolytic capacitors, WEET have made it smaller in size and better in acoustic performance.
Due to its flat shape, MKT decoupling capacitor can be easily stacked when multiple capacitors need to be connected in parallel to achieve higher capacity.
Dimensions of the MKT Decoupling capacitors in the following pictures:
275/2.7uF 160V: 9x15x25mm
685/6.8uF 160V: 12x18x31.5mm
156/15uF 160V: 16.5x23x36mm (Visaton Film Capacitor 15uF 5% 250V MKT)
CONCLUSION:
WEET WML MKT Decoupling Capacitor solves the problem for customers who cannot find suitable capacitors due to compact PCB space. If you need it, please feel free to contact WEET sales team, and we can also send samples for free trial.
Contact us:Sales@weetcap.com
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WEE Technology Published on Oct 23, 2025
Are you still troubled by not finding the right capacitor for your compact PCB board?
We have developed a best-selling compact MKT capacitor series, cross Vishay MKT Polyester Film Capacitor.
INTRODUCTION
WEET WML Cross Reference to Compact MKT-Metallized Polyester Film Capacitor (Axial and Oval), 4.7uF Audyn MKT 160V 5%.
SPECIFICATIONS
MFD: 4.7μF 475
Dimension: 9.5 x 16 x 31.5mm
Operating Temperature: -40℃ ~ +105℃
Rated Voltage: 160V.DC
Capacitance Range: 1μF ~ 100μF
Capacitance Tolerance: ±5%
Withstand Voltage: 1.6UR 2s (1.5UR 5s)
Note:
WEET WML Yellow BIPOLAR CAPACITOR BASS offers a compact MKT 100uF option, perfect for your space-saving PCB board designs!
SUMMARY:
You can choose any color for the Low Profile MKT Film Capacitors. Not sure if it's suitable? We can send you free samples for experience.
Date Sheet: WEET® WEE®-WMB-China-MEA-CL20-Cross-Reference-to-MPE-Metallized-Polyester-Film-Capacitor-Axial-and-Oval
Contact us: Sales@weetcap.com
WEE Technology Published on Oct 22, 2025
Although yellow tweeter capacitors is small in size, it plays a huge role. So which fields does WML Compact MKT 160V Film Capacitor involve?
Consumer electronic products
1. Audio equipment: Used for signal coupling and filtering in radios, stereos, and headphones to ensure pure sound quality.
2. Small household appliances: Applied in the control board circuits of microwave ovens, rice cookers, and coffee machines, serving power decoupling and timing circuits.
Communication and data processing equipment
1. Fixed communication equipment: Used for power filtering and data signal coupling in routers and switches to reduce interference.
2. Data storage equipment: Employed in the decoupling circuits of hard disks and server power modules to stabilize the power supply voltage.
Lighting and power supply fields
1. LED lighting: Used in the filtering and rectification circuits of LED driver power supplies to prevent current fluctuations from affecting the service life of LEDs.
2. Switching power supplies: Applied in the secondary filtering of mobile phone chargers and laptop power adapters to output stable DC voltage.
Note:
Considering the limited area of the PCB board, overly large capacitors will occupy space. Therefore, WEET have upgraded the MKT Film Condensator 160V to provide a small-size version with 100uF for your compact PCB board.
Detail information: WEET-WML-Cross-Reference-to-Compact-MKT-Metallized-Polyester-Film-Capacitor-Axial-and-Oval
Contact us: Sales@weetcap.com
WEE Technology Published on Oct 21, 2025
There are many types of audio capacitors, such as WME, WMR, WMF, etc. To meet customer needs, we have launched the MER CL21 Multifunctional Metallized Polyester Film Capacitor.
CL21 MER Film Capacitor Specs:
| Capacitance range: | 0.001~15㎌ |
| Capacitance Tolerance: | ±5％，±10％ |
| Rated voltage Vdc: | 63V，100V，250V，400V，630V |
| Coating material: | Comply with UL94V-0 standard |
| L*T*H(mm) | 29mm*22.5mm*16mm |
CL21 MER Film Capacitor Applications:
Coupling of electronic circuits.
Bypass and energy storage application.
Audio related applications.
Summary:
CL21 MER Metallized Polyester Film Capacitor accept small-batch orders for this capacitor. Would you like to test the samples? We can also send the samples to you for free.
Contact us:Wallis@weetcap.com
WEE Technology Published on Sept 5, 2025
Haven't found a supplier for CL21 (MEF) Metallized Polyester Film Capacitor at a suitable price yet? Or do you need Cl21 metallized polyester film capacitor replacement?
WEET can provide all of these for you, you just need to visit our official website to select them! Products
CL21 MER Metallized Polyester Film Capacitor Key Specifications:
| Capacitance uF | Voltage V | Pitch size mm | L*T*H mm |
| 4.7 | 250 | 27 | 29*19.5*13.5 |
Climate: 40/105/56.
Capacitance range: 0.001㎌ - 15㎌.
Capacitance Tolerance: ±5％, ±10％.
Temperature range: -40℃〜+ 105℃.
Rated voltage Vdc: 63V, 100V, 250V, 400V, 630V.
Coating material: Comply with UL94V-0 standard.
WEE Technology, Our Only Business is Making Quality Capacitors. Please feel free to contact us if you have any needs!
Contact us:Wallis@weetcap.com
WEE Technology Published on Sept 4, 2025