EPCOS B41231A3109M Aluminum Electrolytic Capacitor

Date:2026-3-9 Share to:

Product Overview

The EPCOS B41231A3109M is a high-reliability, long-life aluminum electrolytic capacitor engineered for demanding industrial control applications. Manufactured by TDK-EPCOS — a global leader in passive components — this genuine, factory-original capacitor delivers exceptional stability, low ESR, and extended service life under continuous operation. With a capacitance of 10,000 µF and a rated voltage of 63 V DC, the B41231A3109M belongs to the robust B41231 series, specifically optimized for harsh environments requiring thermal resilience and consistent performance.

Technical Specifications

Parameter Value
Brand EPCOS (TDK)
Model Number B41231A3109M
Capacitance 10,000 µF ±20%
Rated Voltage 63 V DC
Temperature Range –40 °C to +105 °C
Lifetime (at 105 °C, rated voltage) 5,000 hours
Ripple Current (100 Hz, 105 °C) 4.8 A
ESR (100 Hz, 20 °C) Max. 22 mΩ
Case Size (D × L) 25 mm × 45 mm
Polarity Polarized (Radial Lead)

Key Features

  • Genuine EPCOS Original: Sourced directly from authorized TDK-EPCOS distribution channels — no counterfeits or refurbished units.
  • Long-Life Design: Rated for 5,000 hours at full load and 105 °C, ensuring durability in industrial power supplies and motor drives.
  • Low Impedance & High Ripple Current: Optimized for high-efficiency filtering and energy storage in switching power applications.
  • Industrial-Grade Reliability: Compliant with RoHS, AEC-Q200 stress-tested, and qualified for use in automation, UPS, and PLC systems.
  • Secure Radial Construction: Robust can design with pressure-relief vent and solderable axial leads for reliable PCB mounting.

Typical Applications

The B41231A3109M is widely deployed in:

  • Industrial variable-frequency drives (VFDs) and servo amplifiers
  • Uninterruptible power supplies (UPS) and DC link filtering
  • Programmable logic controller (PLC) power modules
  • Welding equipment and power rectifier banks
  • Renewable energy inverters (solar/wind) requiring stable bulk capacitance

Supply Information

Gopi International maintains real-time stock of genuine EPCOS B41231A3109M capacitors — ready for immediate shipment worldwide. All units are traceable, factory-fresh, and accompanied by full datasheets and compliance documentation. Bulk pricing, custom packaging, and drop shipping options available upon request. Lead times: typically same-day dispatch for in-stock orders.

Contact Us

For technical support, volume quotations, or urgent procurement assistance, contact Gopi International today:

  • Phone: +86-21-24208728
  • Email: ghb585@163.com
  • Address: Shanghai, China
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