UDB1H150MHM

The UDB1H150MHM is a bi‑polarized aluminum electrolytic capacitor from Nichicon’s UDB series, engineered for use in speaker network and Hi‑Fi crossover applications. Its construction and electrical characteristics address AC coupling and filter sections where non‑polar operation is required.

Key electrical parameters include 15 µF capacitance at 50 V rated voltage, radial‑lead packaging, and an operating temperature range of −40 °C to +85 °C. Products in the UDB series are scheduled to be discontinued and are not recommended for new designs.

Key Features

• Bi‑Polarized construction — Designed for AC operation in speaker networks and crossover circuits where polarity reversals can occur.
• Electrical rating — 15 µF capacitance with a 50 V rated voltage and ±20% tolerance (measured at 1 kHz), providing the capacitance and voltage headroom needed in many passive audio filters.
• Low loss in audio band — Tangent of loss angle (tan δ) ≤ 0.10 at 1 kHz and ≤ 0.15 at 5 kHz to support low dissipation in audio frequency ranges.
• Leakage and ripple specifications — Leakage current limited per series spec (not more than 0.03CV or 3 μA, whichever is greater); product table value for this part is 22.5 μA (measured at 20 °C after 5 minutes). Rated ripple is listed at 660 mArms (table reference at 1.3 kHz).
• Radial can package — Radial lead, can-style package with 5 mm lead spacing and a compact case size (φD×L = 12.5 × 25 mm / 2.5 × 1.25 cm), suited for through‑hole PCB mounting in audio equipment.
• RoHS compliant — Meets the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Hi‑Fi speaker crossover networks — Acts as the AC‑capacitance element in passive crossovers where bi‑polar operation and low loss are required.
• Speaker network components — Suitable for mid/high‑frequency filter sections in multi‑way speaker systems that require non‑polar capacitors.
• General‑purpose audio circuits — Can be used where a bi‑polar aluminum electrolytic with these dimensions and ratings is required for audio filtering or coupling.

Unique Advantages

• Bi‑polar design for AC service — Eliminates polarity constraints typical of polarized electrolytics, simplifying placement in crossover and AC‑coupled filter topologies.
• Audio‑oriented loss characteristics — Specified tan δ values at 1 kHz and 5 kHz help minimize dissipation and preserve signal integrity in the audible band.
• Compact, PCB‑friendly packaging — Radial can format with 5 mm lead spacing and a 12.5 × 25 mm case size makes layout and assembly straightforward in through‑hole speaker assemblies.
• Clear electrical limits — Published leakage current and rated ripple values (22.5 μA leakage; 660 mArms rated ripple at table frequency) allow designers to size margins for reliability and thermal considerations.
• Regulatory compliance — RoHS compliance supports use in regions requiring restricted substances conformance.

Why Choose UDB1H150MHM?

UDB1H150MHM is positioned as a focused solution for audio engineers and OEMs requiring a bi‑polar aluminum electrolytic capacitor tailored to speaker crossover and network applications. Its combination of 15 µF at 50 V, low loss characteristics at audio frequencies, and radial can packaging make it a practical choice for retrofits and replacement parts in existing Hi‑Fi designs.

Being part of Nichicon’s UDB series, the part provides clearly published electrical limits (leakage, tan δ, rated ripple) and dimensional data for predictable integration into PCB layouts and speaker assemblies.

Request a quote or contact sales to confirm current availability, lead times, and to discuss suitability for your existing audio assemblies.