TDK B43544 Snap-in Capacitors: High Ripple Current Selection

In high-frequency power conversion, the thermal stress induced by ripple current remains the primary driver of premature component failure. The TDK B43544 series is engineered specifically to address these demands, offering an exceptional ripple current capability in a compact snap-in footprint.

Product Overview

The B43544 series comprises long-life grade aluminum electrolytic capacitors qualified for continuous operation up to 105 °C. Designed for high-voltage DC link applications, these units feature a robust internal construction that provides improved charge/discharge robustness and optimized thermal resistance. With rated voltages extending up to 550 V DC, they serve as critical components in professional-grade power supplies and industrial drives where reliability is non-negotiable.

Typical Applications

  • Servo drives and frequency converters
  • Solar inverters and wind power converters
  • Uninterruptible power supplies (UPS)
  • Professional power supplies and medical electronics

Key Features & Benefits

  • Very High Ripple Current: Optimized for high-frequency switching environments.
  • Long Service Life: Rated for >3000 h at 105 °C with high reliability.
  • Compact Design: High CV (capacitance-voltage) product per unit volume.
  • Construction: Aluminum case with PET or PVC insulation; available in 2-terminal and 3-terminal versions.

B43544 Selection Guide — Part 1: 200V & 250V DC

Voltage Rating: 200V DC

High Capacitance Range • 390 µF to 2700 µF • 105 °C Rated

Catalog Number Voltage Capacitance Case (mm) Action
B43544A2397M0*# 200V 390 µF 25 x 25 REQUEST QUOTE
B43544A2477M0*# 200V 470 µF 25 x 30 REQUEST QUOTE
B43544A2567M0*# 200V 560 µF 25 x 30 REQUEST QUOTE
B43544A2687M0*# 200V 680 µF 25 x 35 REQUEST QUOTE
B43544B2687M0*# 200V 680 µF 30 x 25 REQUEST QUOTE
B43544A2827M0*# 200V 820 µF 25 x 40 REQUEST QUOTE
B43544B2827M0*# 200V 820 µF 30 x 30 REQUEST QUOTE
B43544C2827M0*# 200V 820 µF 35 x 25 REQUEST QUOTE
B43544A2108M0*# 200V 1000 µF 25 x 45 REQUEST QUOTE
B43544B2108M0*# 200V 1000 µF 30 x 35 REQUEST QUOTE
B43544C2108M0*# 200V 1000 µF 35 x 30 REQUEST QUOTE
B43544A2128M0*# 200V 1200 µF 25 x 50 REQUEST QUOTE
B43544B2128M0*# 200V 1200 µF 30 x 40 REQUEST QUOTE
B43544C2128M0*# 200V 1200 µF 35 x 30 REQUEST QUOTE
B43544A2158M0*# 200V 1500 µF 30 x 45 REQUEST QUOTE
B43544B2158M0*# 200V 1500 µF 35 x 35 REQUEST QUOTE
B43544A2188M0*# 200V 1800 µF 30 x 50 REQUEST QUOTE
B43544B2188M0*# 200V 1800 µF 35 x 40 REQUEST QUOTE
B43544A2228M0*# 200V 2200 µF 30 x 55 REQUEST QUOTE
B43544B2228M0*# 200V 2200 µF 35 x 45 REQUEST QUOTE
B43544A2278M0*# 200V 2700 µF 35 x 50 REQUEST QUOTE

Voltage Rating: 250V DC

High Voltage Grade • 330 µF to 2200 µF • 1.2 A to 5.2 A Ripple Range

Catalog Number Voltage Capacitance Case (mm) Action
B43544E2337M0*# 250V 330 µF 25 x 25 REQUEST QUOTE
B43544E2397M0*# 250V 390 µF 25 x 30 REQUEST QUOTE
B43544E2477M0*# 250V 470 µF 25 x 30 REQUEST QUOTE
B43544F2477M0*# 250V 470 µF 30 x 25 REQUEST QUOTE
B43544E2567M0*# 250V 560 µF 25 x 35 REQUEST QUOTE
B43544F2567M0*# 250V 560 µF 30 x 30 REQUEST QUOTE
B43544E2687M0*# 250V 680 µF 25 x 40 REQUEST QUOTE
B43544F2687M0*# 250V 680 µF 30 x 30 REQUEST QUOTE
B43544G2687M0*# 250V 680 µF 35 x 25 REQUEST QUOTE
B43544E2827M0*# 250V 820 µF 25 x 45 REQUEST QUOTE
B43544F2827M0*# 250V 820 µF 30 x 35 REQUEST QUOTE
B43544G2827M0*# 250V 820 µF 35 x 30 REQUEST QUOTE
B43544E2108M0*# 250V 1000 µF 25 x 55 REQUEST QUOTE
B43544F2108M0*# 250V 1000 µF 30 x 40 REQUEST QUOTE
B43544G2108M0*# 250V 1000 µF 35 x 30 REQUEST QUOTE
B43544E2128M0*# 250V 1200 µF 30 x 45 REQUEST QUOTE
B43544F2128M0*# 250V 1200 µF 35 x 35 REQUEST QUOTE
B43544E2158M0*# 250V 1500 µF 30 x 55 REQUEST QUOTE
B43544F2158M0*# 250V 1500 µF 35 x 40 REQUEST QUOTE
B43544E2188M0*# 250V 1800 µF 35 x 50 REQUEST QUOTE
B43544E2228M0*# 250V 2200 µF 35 x 55 REQUEST QUOTE

→ Continued: 400V, 450V, 500V, and 550V DC range selection

B43544 Selection Guide — Part 2: 400V & 450V DC

Voltage Rating: 400V DC

Standard Industrial DC Link • 120 µF to 1200 µF • Very High CV

Catalog Number Voltage Capacitance Case (mm) Action
B43544E9127M0*# 400V 120 µF 25 x 25 REQUEST QUOTE
B43544E9157M0*# 400V 150 µF 25 x 30 REQUEST QUOTE
B43544E9187M0*# 400V 180 µF 25 x 35 REQUEST QUOTE
B43544F9187M0*# 400V 180 µF 30 x 25 REQUEST QUOTE
B43544E9227M0*# 400V 220 µF 25 x 35 REQUEST QUOTE
B43544F9227M0*# 400V 220 µF 30 x 30 REQUEST QUOTE
B43544E9277M0*# 400V 270 µF 25 x 45 REQUEST QUOTE
B43544F9277M0*# 400V 270 µF 30 x 35 REQUEST QUOTE
B43544G9277M0*# 400V 270 µF 35 x 25 REQUEST QUOTE
B43544E9337M0*# 400V 330 µF 25 x 50 REQUEST QUOTE
B43544F9337M0*# 400V 330 µF 30 x 35 REQUEST QUOTE
B43544G9337M0*# 400V 330 µF 35 x 30 REQUEST QUOTE
B43544E9397M0*# 400V 390 µF 25 x 55 REQUEST QUOTE
B43544F9397M0*# 400V 390 µF 30 x 40 REQUEST QUOTE
B43544G9397M0*# 400V 390 µF 35 x 35 REQUEST QUOTE
B43544E9477M0*# 400V 470 µF 30 x 45 REQUEST QUOTE
B43544F9477M0*# 400V 470 µF 35 x 35 REQUEST QUOTE
B43544E9567M0*# 400V 560 µF 30 x 55 REQUEST QUOTE
B43544F9567M0*# 400V 560 µF 35 x 40 REQUEST QUOTE
B43544E9687M0*# 400V 680 µF 30 x 70 REQUEST QUOTE
B43544B9687M0*# 400V 680 µF 35 x 50 REQUEST QUOTE
B43544E9827M0*# 400V 820 µF 30 x 80 REQUEST QUOTE
B43544B9827M0*# 400V 820 µF 35 x 55 REQUEST QUOTE
B43544E9108M0*# 400V 1000 µF 35 x 70 REQUEST QUOTE
B43544E9128M0*# 400V 1200 µF 35 x 80 REQUEST QUOTE

Voltage Rating: 450V DC

Heavy Duty Power Conversion • 82 µF to 820 µF • Optimized Thermal Path

Catalog Number Voltage Capacitance Case (mm) Action
B43544E5826M0*# 450V 82 µF 25 x 25 REQUEST QUOTE
B43544E5107M0*# 450V 100 µF 25 x 30 REQUEST QUOTE
B43544E5127M0*# 450V 120 µF 25 x 30 REQUEST QUOTE
B43544F5127M0*# 450V 120 µF 30 x 25 REQUEST QUOTE
B43544E5157M0*# 450V 150 µF 25 x 35 REQUEST QUOTE
B43544F5157M0*# 450V 150 µF 30 x 30 REQUEST QUOTE
B43544E5187M0*# 450V 180 µF 25 x 40 REQUEST QUOTE
B43544F5187M0*# 450V 180 µF 30 x 30 REQUEST QUOTE
B43544G5187M0*# 450V 180 µF 35 x 25 REQUEST QUOTE
B43544E5227M0*# 450V 220 µF 25 x 45 REQUEST QUOTE
B43544F5227M0*# 450V 220 µF 30 x 35 REQUEST QUOTE
B43544G5227M0*# 450V 220 µF 35 x 30 REQUEST QUOTE
B43544E5277M0*# 450V 270 µF 25 x 50 REQUEST QUOTE
B43544F5277M0*# 450V 270 µF 30 x 40 REQUEST QUOTE
B43544G5277M0*# 450V 270 µF 35 x 30 REQUEST QUOTE
B43544E5337M0*# 450V 330 µF 30 x 45 REQUEST QUOTE
B43544F5337M0*# 450V 330 µF 35 x 35 REQUEST QUOTE
B43544E5397M0*# 450V 390 µF 30 x 50 REQUEST QUOTE
B43544F5397M0*# 450V 390 µF 35 x 40 REQUEST QUOTE
B43544F5477M0*# 450V 470 µF 30 x 60 REQUEST QUOTE
B43544E5477M0*# 450V 470 µF 35 x 45 REQUEST QUOTE
B43544F5567M0*# 450V 560 µF 30 x 70 REQUEST QUOTE
B43544E5567M0*# 450V 560 µF 35 x 50 REQUEST QUOTE
B43544E5687M0*# 450V 680 µF 35 x 65 REQUEST QUOTE
B43544E5827M0*# 450V 820 µF 35 x 75 REQUEST QUOTE

→ Continued: 500V and 550V DC extreme voltage range selection

B43544 Selection Guide — Part 3: 500V & 550V DC

Voltage Rating: 500V DC

Extended Voltage Capability • 68 µF to 470 µF • ESR down to 180 mΩ

Catalog Number Voltage Capacitance Case (mm) Action
B43544B6686M0*# 500V 68 µF 25 x 25 REQUEST QUOTE
B43544B6826M0*# 500V 82 µF 25 x 30 REQUEST QUOTE
B43544C6107M0*# 500V 100 µF 25 x 35 REQUEST QUOTE
B43544D6107M0*# 500V 100 µF 30 x 25 REQUEST QUOTE
B43544C6127M0*# 500V 120 µF 25 x 35 REQUEST QUOTE
B43544D6127M0*# 500V 120 µF 30 x 30 REQUEST QUOTE
B43544A6157M0*# 500V 150 µF 25 x 45 REQUEST QUOTE
B43544B6157M0*# 500V 150 µF 30 x 35 REQUEST QUOTE
B43544C6157M0*# 500V 150 µF 35 x 25 REQUEST QUOTE
B43544A6187M0*# 500V 180 µF 25 x 50 REQUEST QUOTE
B43544B6187M0*# 500V 180 µF 30 x 35 REQUEST QUOTE
B43544C6187M0*# 500V 180 µF 35 x 30 REQUEST QUOTE
B43544A6227M0*# 500V 220 µF 25 x 55 REQUEST QUOTE
B43544B6227M0*# 500V 220 µF 30 x 40 REQUEST QUOTE
B43544C6227M0*# 500V 220 µF 35 x 35 REQUEST QUOTE
B43544A6277M0*# 500V 270 µF 30 x 50 REQUEST QUOTE
B43544B6277M0*# 500V 270 µF 35 x 40 REQUEST QUOTE
B43544A6337M0*# 500V 330 µF 30 x 55 REQUEST QUOTE
B43544B6337M0*# 500V 330 µF 35 x 45 REQUEST QUOTE
B43544A6397M0*# 500V 390 µF 35 x 50 REQUEST QUOTE
B43544A6477M0*# 500V 470 µF 35 x 55 REQUEST QUOTE

Voltage Rating: 550V DC

Maximum Voltage Rating • 47 µF to 270 µF • High Self-Extinguishing Grade Insulation

Catalog Number Voltage Capacitance Case (mm) Action
B43544B7476M0*# 550V 47 µF 25 x 25 REQUEST QUOTE
B43544B7566M0*# 550V 56 µF 25 x 30 REQUEST QUOTE
B43544C7686M0*# 550V 68 µF 25 x 35 REQUEST QUOTE
B43544D7686M0*# 550V 68 µF 30 x 25 REQUEST QUOTE
B43544C7826M0*# 550V 82 µF 25 x 35 REQUEST QUOTE
B43544D7826M0*# 550V 82 µF 30 x 30 REQUEST QUOTE
B43544D7107M0*# 550V 100 µF 25 x 40 REQUEST QUOTE
B43544E7107M0*# 550V 100 µF 30 x 35 REQUEST QUOTE
B43544F7107M0*# 550V 100 µF 35 x 25 REQUEST QUOTE
B43544D7127M0*# 550V 120 µF 25 x 50 REQUEST QUOTE
B43544E7127M0*# 550V 120 µF 30 x 35 REQUEST QUOTE
B43544F7127M0*# 550V 120 µF 35 x 30 REQUEST QUOTE
B43544A7157M0*# 550V 150 µF 25 x 55 REQUEST QUOTE
B43544B7157M0*# 550V 150 µF 30 x 45 REQUEST QUOTE
B43544C7157M0*# 550V 150 µF 35 x 35 REQUEST QUOTE
B43544A7187M0*# 550V 180 µF 30 x 50 REQUEST QUOTE
B43544B7187M0*# 550V 180 µF 35 x 40 REQUEST QUOTE
B43544A7227M0*# 550V 220 µF 30 x 55 REQUEST QUOTE
B43544B7227M0*# 550V 220 µF 35 x 45 REQUEST QUOTE
B43544A7277M0*# 550V 270 µF 35 x 50 REQUEST QUOTE
Standard: IEC 60384-4  |  Rating: 105 °C Long Life  |  Insulation: Pass needle flame test (IEC 60695-11-5)

Need custom terminal lengths or PVC-free insulation? Our technical sales engineers can provide specific ordering code configurations for your OEM build.

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