In time-sensitive production environments, extended lead times for essential components can create significant challenges. For engineers and procurement teams, partnering with a dc link MKP capacitor supplier that can deliver within short cycles is often critical to keeping projects on track and reducing operational risk.
The JFQP series from jb Capacitors is designed with both performance and availability in mind. These capacitors provide dependable solar inverter capacitor solutions for renewable energy systems, as well as robust industrial DC link capacitor options for demanding motor drives and precision power supplies — all while being ready to ship within shorter timeframes.
The video above outlines the core features and practical use cases, showing how this high voltage MKP capacitor range can integrate into various power electronics designs. From improving DC bus stability in inverters to reducing ripple in industrial drives, the JFQP series meets technical requirements while maintaining availability.
In high voltage designs, structure matters. The way a film capacitor is built — whether in a cycloidal body or a flat oval form — directly affects not only how it fits your board layout, but also how it handles thermal expansion, electrical stress, and long-term reliability.
The jb JFG Series offers both options: JFGA / JFGC (Cycloidal) and JFGB / JFGD (Flat Oval). These designs are paired with polyester (PET) or polypropylene (PP) dielectric films, and come in ratings up to 1250VDC — making them ideal for energy-dense, mission-critical circuits.
So, which structure is right for your project?
If your layout needs a component with more height tolerance and compact footprint, the cycloidal version may be your best fit. On the other hand, if you’re working with space-limited vertical profiles or dense modules, the flat oval design will provide easier stacking and tighter spacing.
Both options offer excellent self-healing properties, low dissipation factor, and consistent dielectric performance across temperature and frequency ranges.
Compare Full Specs, Models & Drawings Online
Instead of guessing which model suits your voltage level or layout restrictions, we’ve made it easy for you to compare all JFG series models — including detailed dimensions, capacitance range, and lead types.
In high-frequency design, precision and reliability are non-negotiable. From RF filters to impedance matching circuits, a capacitor that drifts under thermal stress or vibration isn’t just inconvenient — it’s a design flaw waiting to happen.
That’s why engineers increasingly choose the JKA Series SMD Ceramic Trimmer Capacitors from jb Capacitors. These aren’t your average variable capacitors. They’re crafted for high stability, high Q performance, and robust SMT compatibility, making them ideal for demanding designs across RF, telecom, IoT, and wearable applications.
What Makes the JKA Series Different?
Unlike traditional through-hole trimmers, the JKA Series features a miniature 3mm surface mount form factor — just 3.2 × 4.5 × 1.5 mm — that supports layout optimization in space-constrained PCBs.
Each model offers a tightly defined capacitance range from 1.5 pF to 28.5 pF, and supports multiple temperature coefficients: NPO, N750, and N1300. This gives engineers the flexibility to fine-tune circuits without compromising reliability.
Reliable in the Field, Not Just on the Bench
The JKA Series is built for real-world durability. Its sealed housing prevents flux and dust contamination, while its high-temperature liquid crystal polymer body ensures minimal dielectric loss and solid mechanical strength.
The adjustable torque (15–72 gf.cm) allows precise calibration that stays fixed. Whether in portable radios, wireless modules, or automotive subsystems, JKA capacitors hold their performance across challenging environments.
When to Choose the JKA Series
If your application requires stable tuning across temperature and time, especially in the 1 MHz to 100 MHz range, the JKA Series is the go-to solution.
Consider it for designs like:
Narrow-band RF amplifiers with fine impedance control
IoT sensors requiring compact layouts and clean signals
Filters needing stable response over thermal cycling
This is where high Q, low ESR, and minimal drift truly matter — and where jb’s JKA Series stands out.
Ready to Integrate?
Engineers worldwide rely on the JKA Series for high-precision analog and RF projects. Backed by a detailed datasheet and in-stock availability, it’s easy to spec into your next design.
Download datasheet and check availability →
Click here
Trimming potentiometers play a critical role in analog circuit design—especially where fine voltage or resistance tuning is essential. Whether you’re calibrating a sensor, adjusting gain in an amplifier, or managing offsets in a comparator circuit, a high-precision variable resistor ensures your system stays stable and predictable.
The JBR Series offers a refined solution for those looking to integrate wirewound trimming potentiometers into tight PCB spaces. Designed for durability, smooth rotation, and low temperature drift, these components are ideal for both prototyping and long-term deployment.
Why Trimming Potentiometers Still Matter
Despite the rise of digital tuning systems, analog adjustment remains indispensable in many applications. A trimming potentiometer—also called a preset resistor or PCB tuning component—offers unmatched immediacy and cost-effectiveness when:
Fine-tuning analog voltage dividers or bias networks
Calibrating sensor thresholds or analog filters
Making post-production adjustments in manufacturing lines
Providing re-tuning capabilities without firmware changes
The JBR Series features single-turn and multi-turn potentiometer options with mechanical angles up to 3600°, tight linearity tolerance, and high resistance range—from 50 Ω up to 2 MΩ, depending on the variant.
Technical Highlights That Make the Difference
Engineered with wirewound construction, these potentiometers deliver consistent resistance behavior under thermal and mechanical stress. Designers will appreciate:
Stable linearity for repeatable adjustment results (±0.25%–±0.5%)
High insulation resistance (up to 1GΩ) and voltage handling
Low rotational noise and consistent contact resistance
Long life cycles—tested up to 10,000 adjustments
For engineers designing industrial control systems, sensor modules, or analog calibration interfaces, the JBR Series provides confidence in both initial setup and field reliability.
Applications You’ll Recognize
You’ll find these trimming potentiometers in everything from power supply feedback loops to automotive sensor calibration circuits. They’re especially well-suited for environments where analog signal integrity, EMI sensitivity, or thermal variation must be tightly controlled.
Still unsure if a mechanical tuning component is right for your project? Watch the video above to explore real-world implementations and mechanical behaviors of the JBR Series.
For detailed specifications and CAD drawings, visit:
jbcapacitors.com
When it comes to reliable AC filtering, not all capacitors are created equal. The jb® JFQF series stands out with its high stability, low ESR, and strong EMI suppression capability—making it an excellent choice for engineers working on UPS systems, solar inverters, and other AC power applications.
This series uses metallized polypropylene film, a material known for durability and self-healing behavior, and offers wide voltage options, including 250VAC, 275VAC, and up to 480VAC.
Whether you're designing a compact power converter or upgrading your AC output filter, JFQF capacitors can deliver the long-term performance and thermal reliability your design demands.
EMI noise is a common issue in AC-powered electronic devices. Whether you're designing a switching power supply, a motor driver, or a smart plug, electromagnetic interference can cause instability, reduce performance, or even lead to failure in sensitive circuits.
So, how can engineers effectively suppress EMI in AC circuits without compromising on space or safety?
Use a Certified X1 Film Capacitor – Like jb’s JFT Series
X1 capacitors are safety-certified components designed for EMI suppression between the AC line and neutral. They are tested to withstand impulse voltages up to 4kV, making them ideal for industrial and commercial applications where reliability matters.
The jb JFT series is a compact, high-performance solution designed to meet these exact needs. Built with metallized polypropylene film, the JFT capacitor offers self-healing properties, low dissipation factor, and compliance with IEC 60384-14 (Class X1).
Key Benefits of Using the JFT X1 Capacitor
✔ Compact size — starting at just 13 × 11 × 5 mm, ideal for space-constrained designs
✔ Rated for 300VAC and 440VAC
✔ Capacitance range from 0.0022μF to 4.7μF
✔ Operating temperature from -55°C to +105°C
✔ Insulation resistance ≥ 15,000 MΩ (for C ≤ 0.33μF)
✔ Self-healing construction for long-term reliability
Where to Use It?
The JFT series is commonly used in:
AC EMI input filters
Switched-mode power supplies (SMPS)
LED drivers and ballasts
HVAC controllers
Industrial automation equipment
Chargers, adapters, and smart home devices
Why Not Just Use a Ceramic Capacitor?
While ceramic capacitors are compact, they usually lack safety certification and cannot withstand high surge voltages. The JFT X1 capacitor, in contrast, offers:
Feature
JFT X1 Capacitor
Ceramic Capacitor
EMI Suppression
Excellent
Moderate
Surge Handling
Up to 4kV
Limited
Safety Certification
Yes (Class X1)
No
Fail-Safe Design
Self-healing
Risk of short circuit
Long-Term Reliability
High
Medium
Learn More
Want to see this capacitor in action? Check out our video demonstration above or download the official datasheet below:
If you're looking for a space-saving, safety-certified solution to suppress EMI in your AC applications, the jb JFT X1 film capacitor is an excellent choice. Its proven performance and compact size make it ideal for both new designs and replacements in existing systems.
When designing AC-powered systems, selecting the right capacitor ensures efficiency, durability, and consistent performance. In this article, we’ll explore the differences between jb’s cbb60, cbb61, and mpp capacitors—and how each fits specific AC applications.
CBB60, CBB61, and MPP: What's the Difference?
All three types are designed for AC operation, but with distinct strengths. Here's a quick comparison:
Model
Application
Case Type
Capacitance
Voltage
cbb60
Motor run (pumps, washing machines)
Round plastic
1–100μF
250/450VAC
cbb61
Fan motors, compact appliances
Square plastic
1–20μF
250/450VAC
mpp
AC filtering, PFC circuits
Film (metalized polypropylene)
Customizable
250–630VAC
Why Use jb’s MPP Capacitors in AC Circuits?
jb’s mpp capacitors are built for low loss, high insulation resistance, and long life in high-frequency AC circuits. These are commonly used in:
Ballasts and lighting systems
Power factor correction (PFC)
Industrial filtering units
With excellent self-healing properties and stable electrical behavior, they’re a trusted choice for demanding applications.
Designers Trust jb for AC Capacitor Solutions
100% electrical testing on all units
Stable dielectric performance under thermal stress
Flexible mounting and wiring options
Globally recognized manufacturing quality
Download Technical Datasheets
Click below to access detailed product specifications and mechanical drawings:
