jbcapacitors blog

JYS / JYT / JYU / JYV – Technical Overview for High-Performance Electronic Design

Multilayer Ceramic Chip Capacitors (MLCCs) remain essential components in modern power electronics, RF communication systems, industrial control modules, EV battery management systems, and precision instrumentation. Selecting the correct MLCC series directly affects system stability, voltage reliability, RF performance, and long-term durability.

This article provides a technical comparison of the jb JYS, JYT, JYU, and JYV MLCC series, focusing on dielectric behavior, voltage capability, RF Q-performance, ESR characteristics, and application-specific considerations.

1. MLCC Series Overview

JYS – General-Purpose SMD MLCC

Designed for stable capacitance, low loss, and standardized SMD sizes.

JYT – High Voltage SMD MLCC

Optimized for high-voltage power modules, inverters, and BMS.

JYU – High-Q RF MLCC

Low ESR, high Q, ideal for RF filters and matching networks.

JYV – Non-Magnetic High-Q RF MLCC

Suitable for MRI, precision instruments, and magnetically sensitive RF circuits.

2. Application Fields

General-Purpose (JYS)

• Consumer electronics
• Industrial controllers
• Low-voltage circuits

High-Voltage (JYT)

• Power supplies
• Converters
• BMS systems

RF / High-Q (JYU)

• RF filters
• Matching networks
• Oscillators & VCO

Non-Magnetic (JYV)

• MRI systems
• Lab instruments

3. Electrical Parameters

• ESR
• Q factor
• SRF
• Voltage rating
• AC/RF loss
• Dielectric performance
• Magnetic vs non-magnetic structure

4. MLCC Comparison Table

5. Selection Considerations

Voltage Derating

High-voltage applications must derate MLCCs.

Q Factor & RF Loss

JYU and JYV are recommended for RF performance.

Non-Magnetic Requirement

JYV is required for MRI or precision RF.

6. MLCC Manufacturing Video