How SMD Electrolytic Capacitors Enhance Power Supply Stability

1 comments 2025-10-28 9:9:31 views

jb logo SMD aluminum electrolytic capacitors

Switching power supplies rely on stable output regulation. jb® SMD aluminum electrolytic capacitors are engineered to support low ESR, long-life performance, and compact PCB layout, helping designers enhance EMI robustness and reduce thermal stress across consumer, industrial, and telecom platforms.

Verify all parameters with the official datasheet during qualification.

How Low ESR Strengthens Power Integrity

Lower ESR reduces AC losses and temperature rise, improving efficiency and transient behavior.

  • Lower output ripple
  • Higher converter efficiency
  • Cleaner undershoot/overshoot
  • Improved reliability under switching stress

ESR_max ≈ ΔV_ripple / I_ripple

Impedance vs frequency of jb SMD aluminum electrolytic capacitors for SMPS ripple control

Comprehensive Series Portfolio

Impedance profiles and endurance tailored for common SMPS scenarios.

Series Temp Load Life ESR / Impedance Primary Applications
JCS 85°C 2000h Standard Home appliances, set-top boxes, low-cost SMPS
JCK 105°C 1000–2000h Low ESR General DC/DC, chargers, TV power boards
JCD 105°C 2000h Low impedance Telecom infrastructure, PoE, networking
JCF 105°C 2000–5000h Ultra-low impedance LED drivers, industrial SMPS, metering

Layout and Reliability Notes

  • Place near switching MOSFET/inductor to minimize loop area
  • Parallel with MLCCs for HF bypass and anti-resonance
  • Parallel capacitors share ripple current and reduce ESR
  • Thermal headroom dominates lifetime more than nameplate ripple
  • Follow lead-free reflow profile; avoid excessive double reflow

For ambient above 60°C, consider 20% voltage derating.

Cross-Reference

jb Series Equivalent Categories
JCS NCC MVA, Nichicon UWX, Rubycon SEV, Panasonic EEE-x(A)S
JCK NCC MVE, Nichicon UWT, Rubycon SKV, Panasonic EEEHA
JCD NCC MHJ, Panasonic EEE-Tx, low-Z telecom families
JCF High-ripple industrial types from leading brands
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How Super Capacitors Improve System Stability in Smart Meters & IoT Devices

2 comments 2025-10-17 8:55:0 views
Supercapacitor energy buffer for smart meters and IoT devices - jb Capacitors
Supercapacitors as energy buffers in smart meter / IIoT rails.

Super capacitors reduce voltage dips and prevent resets under transient loads. Pair batteries with low-ESR jb® JGM (5.5/7.5 V) or low-leakage JGY (5/7.5 V) to extend battery life and keep systems stable across wide temperatures. [1][2]

JGM · Low ESR JGY · Low Leakage

How Super Capacitors Bridge the Power Gap

Deliver peak current in milliseconds, recharge in seconds, and stabilize the DC bus to mitigate ripple. [1][4]

JGM / JGY at a glance
SeriesTypeVoltageKey FeatureTypical Application
JGM Low ESR combined type 5.5 V / 7.5 V Low impedance; stable discharge for high-current pulses Smart meters, RF modules, IIoT gateways
JGY Low leakage combined type 5.0 V / 7.5 V Low self-discharge; long cycle life Embedded controllers, sensor nodes, data retention

Performance & Reliability

Low-ESR combined types keep C within ±30% and ESR within 4× even after 1M cycles at 25 °C; jb® JGY 7.5 V shows consistent discharge for buffer roles. [6]

Both series operate from −40 °C to +70 °C with predictable leakage and ESR drift for outdoor metering and industrial control. [2][5]

Image Gallery
jb® 7.5V supercapacitor low ESR for high-current pulses and IoT energy buffering
jb® 7.5V Supercapacitor – low ESR for stable pulse discharge in IoT and smart meter applications.
jb® 7.5V supercapacitor ultra-low leakage for memory backup and data retention
jb® 7.5V Supercapacitor – ultra-low leakage for memory backup and data retention in embedded nodes.
Smart meter power architecture using jb® supercapacitors for transient smoothing and DC bus stabilization
Smart meter power architecture with jb® supercapacitors for transient smoothing and DC-bus stability.

References

  1. MDPI Batteries, 2023
  2. Renewable & Sustainable Energy Reviews, 2024
  3. Journal of Energy Storage, 2023
  4. J. Mater. Chem. A (RSC), 2021
  5. Applied Energy (Elsevier), 2020
  6. Kyocera-AVX Whitepaper, 2021
Super Capacitors supercapacitor  low ESR capacitor  IoT power backup  smart meter stability  industrial IoT energy storage  long life capacitor  jb Capacitors  voltage buffering  

JBR-BA ~ JBR-BG Wirewound Potentiometers – Precision Across All Series

2 comments 2025-10-8 11:30:45 views

Wirewound potentiometers remain one of the most reliable components for precise resistance adjustment in measurement and control systems.

The jb® JBR-BA ~ JBR-BG family covers a wide performance range, from compact single-turn models to multi-turn lock-type units used in calibration and automation equipment.

1. Overview

Each JBR model is based on a precision wire-winding element that ensures consistent linearity and minimal drift over time. The series offers several mechanical formats — single, five, or ten turns — with optional shaft types and mounting styles to match instrument or panel requirements.

Series Power Rating Turns Resistance Range Typical Application
JBR-BA / BB / BF / BG 2 W 10 turn 100 Ω – 100 kΩ Laboratory & industrial calibration
JBR-BE 1 W 5 turn 100 Ω – 47 kΩ Compact control modules
JBR-BD 1 W Single 50 Ω – 10 kΩ Fast manual adjustment
JBR-BC 1 W Single (Trimming) 50 Ω – 2 MΩ PCB trimming & fine tuning

2. Key Technical Characteristics

  • Linearity tolerance ±0.5%
  • Temperature coefficient ±100 ppm/°C
  • Operational temperature −55°C to +125°C
  • Rotational life 10,000 cycles (typ.)
  • Insulation resistance ≥ 1 GΩ

These parameters make the series suitable for long-term stable adjustment in control loops, test instruments, and precision power supplies.

3. Design Flexibility

All JBR models can be customized — different shaft shapes or lengths, lock mechanisms, and alternative turn counts (3 / 5 / 10 turn). This flexibility allows engineers to standardize on a single platform while covering multiple mechanical interfaces.

4. Typical Applications

  • Voltage or current calibration in measurement systems
  • Gain or offset adjustment in audio and amplifier designs
  • Set-point control in industrial automation
  • Feedback trimming in power electronics

Video Demonstration

jb® JBR-BA to JBR-BG Wirewound Potentiometers – High-Precision, Durable, and Reliable Industrial-Grade Adjustable Components
Contact Us > Watch Demo >
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