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UMK105CBJ105KV-F

1µF ±10% 50V X5R MLCC capacitor, 0402 package, SMPS filtering application

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Manufacturer Part：

UMK105CBJ105KV-F

Package：

0402 (1005 Metric) - 1.00 x 0.50 x 0.55 mm

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Description

Product Overview

The UMK105CBJ105KV-F is a multilayer ceramic chip capacitor (MLCC) manufactured by Taiyo Yuden, offering 1 µF capacitance with ±10% tolerance at 50V rated voltage in a compact 0402 (1005 metric) package. Part of the M series with X5R dielectric, this capacitor is specifically designed for SMPS filtering applications, combining high voltage capability with miniaturized packaging.

Key Specifications

Capacitance 1 µF
Tolerance ±10%
Rated Voltage 50V DC
Dielectric X5R
Operating Temperature -55°C ~ +85°C
Package 0402 (1005 Metric)
Dimensions 1.00 x 0.50 x 0.55 mm
Application SMPS Filtering

Features

  • High 50V rating in ultra-compact 0402 package
  • X5R dielectric for stable performance in SMPS applications
  • 1 µF capacitance for effective noise suppression
  • RoHS compliant and lead-free terminations
  • Optimized for switch-mode power supply filtering

Applications

  • SMPS output filtering and noise suppression
  • DC-DC converter input/output capacitors
  • Power line decoupling in industrial electronics
  • High-voltage digital circuit bypass
  • LED driver power stage filtering

The UMK105CBJ105KV-F from Taiyo Yuden is a high-performance MLCC in the M series, providing 1 µF at 50V in an ultra-compact 0402 package. The X5R dielectric offers a practical balance between capacitance stability and volumetric efficiency, making this capacitor ideal for SMPS filtering where both high voltage rating and compact size are required. Taiyo Yuden’s advanced multilayer technology achieves this combination of 1 µF at 50V in the 0402 form factor, enabling designers to save PCB space without sacrificing electrical performance in power supply applications.

The UMK105CBJ105KV-F uses a multilayer ceramic construction where alternating nickel electrode layers and barium titanate-based X5R dielectric layers are co-fired into a monolithic chip. The 1 µF capacitance at 50V is achieved through advanced thin-layer dielectric technology that maximizes the number of active layers within the 0402 footprint. In SMPS applications, the capacitor serves as a local energy reservoir and high-frequency noise filter. The X5R dielectric provides a stable capacitance profile over the -55°C to +85°C range, though designers should account for DC bias effects when operating near the 50V rating. The low ESR and ESL characteristics make it effective at suppressing switching noise in the 100 kHz to 10 MHz frequency range typical of SMPS circuits.

Pin Name Type Function
1 Terminal 1 Passive Electrode connection (non-polarized)
2 Terminal 2 Passive Electrode connection (non-polarized)

Note: MLCC capacitors are non-polarized. DC bias derating should be considered at high operating voltages.

  • SMPS output stage LC filter capacitors for ripple reduction
  • DC-DC buck/boost converter input and output decoupling
  • High-voltage digital IC power rail bypass in industrial systems
  • LED driver circuit input/output filtering at 24V/48V rails
  • Power line EMI suppression in automotive electronics
Manufacturer Part Number Package Notes
Murata GRM155R61H105KE15D 0402 1µF 50V X5R ±10%
Samsung CL05A105KA5NQNC 0402 1µF 25V X5R ±10%
TDK C1005X5R1H105K050BC 0402 1µF 50V X5R ±10%
YAGEO CC0402KRX5R8BB105 0402 1µF 50V X5R ±10%
Walsin 0402X105K500CT 0402 1µF 50V X5R ±10%
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Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Contact Information

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Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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