TDK B41456 B41458 Aluminum Electrolytic Capacitors - Technical Guide

TDK EPCOS B41456 and B41458 series represent the high-reliability benchmark for long-life aluminum electrolytic capacitors. Designed for demanding industrial electronics, these screw-terminal components offer exceptionally high ripple current capability and a compact design suited for high-density power distribution.

Product Overview

Engineered for a useful life of over 12,000 hours at 85 °C (increasing to >200,000 hours at 40 °C), the B41456 (ring clip/clamp mount) and B41458 (threaded stud mount) series are charge-discharge proof and feature an all-welded construction. This ensures reliable electrical contact in applications subject to vibration and high thermal loads.

Typical Applications

  • Switch-mode power supplies in professional equipment
  • Uninterruptible Power Supplies (UPS) and frequency converters
  • Solar and wind power inverter DC link stages
  • General industrial electronics and automation systems

Key Features & Benefits

  • High Ripple Current: Handles massive current loads (up to 57A depending on diameter).
  • Rugged Design: Polar, charge-discharge proof aluminum case with PET sleeve insulation.
  • Versatile Mounting: Choice between ring clips (B41456) or M12 threaded studs (B41458).
  • Low Inductance: Available <13 nH designs for higher frequency switching environments.

Product Range & Selection Guide

B41456 / B41458 Series (16 V DC to 40 V DC)

85 °C Long-Life Grade • Screw Terminals • 47,000µF – 470,000µF

Ordering Code (Note 1) Voltage Capacitance Case (mm) Action
B4145*B4109M60# 16 V 100,000 µF 51.6x80.7 REQUEST QUOTE
B4145*B4229M60# 16 V 220,000 µF 64.3x105.7 REQUEST QUOTE
B4145*B4479M60# 16 V 470,000 µF 76.9x143.2 REQUEST QUOTE
B4145*B5688M60# 25 V 68,000 µF 51.6x80.7 REQUEST QUOTE
B4145*B5159M60# 25 V 150,000 µF 64.3x105.7 REQUEST QUOTE
B4145*B5479M60# 25 V 470,000 µF 76.9x220.7 REQUEST QUOTE
B4145*B7478M60# 40 V 47,000 µF 51.6x80.7 REQUEST QUOTE
B4145*B7109M60# 40 V 100,000 µF 64.3x105.7 REQUEST QUOTE
B4145*B7229M60# 40 V 220,000 µF 76.9x143.2 REQUEST QUOTE

B41456 / B41458 Series (63 V DC to 100 V DC)

High Voltage Electrolytic • Screw Terminals • 10,000µF – 150,000µF

Ordering Code (Note 1) Voltage Capacitance Case (mm) Action
B4145*B8228M60# 63 V 22,000 µF 51.6x80.7 REQUEST QUOTE
B4145*B8478M60# 63 V 47,000 µF 64.3x105.7 REQUEST QUOTE
B4145*B8109M60# 63 V 100,000 µF 76.9x143.2 REQUEST QUOTE
B4145*B8159M60# 63 V 150,000 µF 76.9x220.7 REQUEST QUOTE
B4145*B9108M60# 100 V 10,000 µF 51.6x80.7 REQUEST QUOTE
B4145*B9228M60# 100 V 22,000 µF 64.3x105.7 REQUEST QUOTE
B4145*B9338M60# 100 V 33,000 µF 76.9x105.7 REQUEST QUOTE
B4145*B9478M60# 100 V 47,000 µF 76.9x143.2 REQUEST QUOTE
Note 1 (*): Replace * with 6 for B41456 (Ring clip mount) or 8 for B41458 (Threaded stud).
Note 2 (#): Replace # with 0 for Standard Design, or 3 for Low Inductance (d ≥ 64.3 mm).
Standard: IEC 60384-4  |  Climatic Category: 40/085/56 (-40 °C to +85 °C)

Looking for specific capacitance values or custom low-inductance terminal configurations from TDK EPCOS?

REQUEST A QUOTE
Back to blog