UDB1H2R2MPM

The UDB1H2R2MPM is a bi-polar aluminum electrolytic capacitor from Nichicon’s UDB series, purpose-built for speaker crossover networks and general-purpose audio circuitry. It provides 2.2 µF capacitance at a 50 V rating in a radial can package, optimized for through-hole assembly and audio filter applications.

Designed for Hi‑Fi sound systems, the part combines bi-polar construction with audio-focused electrical characteristics and RoHS compliance. Note: this product is scheduled to be discontinued and is not recommended for new designs.

Key Features

• Bi‑polar construction Allows AC-capable operation suitable for speaker crossover networks and other bipolar audio filter applications.
• Capacitance and tolerance 2.2 µF nominal capacitance with ±20% tolerance (measured at 1 kHz).
• Voltage rating 50 V rated voltage for common audio and crossover voltage levels.
• Low loss at audio frequencies Tangent of loss angle (tan δ) ≤ 0.10 at 1 kHz and ≤ 0.15 at 5 kHz, supporting low-loss audio filtering.
• Leakage current specification Leakage current not more than 0.03CV or 3 µA, whichever is greater (after 5 minutes' application of rated voltage at 20°C).
• Rated ripple and allowable current Rated ripple 320 mArms with allowable continuous current characterized at 9 kHz for this part number.
• Package and mounting Radial can package (10 × 12.5 mm) with 5 mm lead spacing and radial leads for easy through-hole mounting and manual or wave soldering.
• Operating temperature range –40 °C to +85 °C for typical audio and general-purpose environments.
• RoHS compliant Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Hi‑Fi Speaker Crossover Networks — Bi‑polar construction and audio-focused loss characteristics make this capacitor suitable for passive crossover filter stages.
• Audio Equipment Filters — Used in tone control and equalization circuits where low loss at 1–5 kHz is important.
• General‑Purpose Electronic Circuits — Through-hole radial mounting supports repair, prototyping, and legacy board designs requiring a bipolar electrolytic capacitor.

Unique Advantages

• AC‑capable bi‑polar design: Enables use in bipolar signal paths such as speaker crossover networks without polarity constraints.
• Audio-oriented electrical profile: Low tan δ at 1 kHz and 5 kHz helps maintain signal fidelity in audio filter applications.
• Compact radial can: 10 × 12.5 mm case offers a small footprint for through-hole layouts while providing a substantial ripple rating (320 mArms).
• Clear electrical limits: Defined leakage current formula and rated ripple/current values aid in reliable circuit design and specification compliance.
• Broad operating range: –40 °C to +85 °C supports typical commercial and consumer audio environments.
• RoHS compliance: Meets regulatory requirements for environmental substance restrictions.

Why Choose UDB1H2R2MPM?

The UDB1H2R2MPM positions itself as a focused solution for audio engineers and technicians working on speaker crossover networks and through-hole audio circuitry. Its bi‑polar construction, audio-focused loss characteristics, and defined ripple/current ratings make it suitable for repair, refurbishment, and legacy designs that require a reliable radial electrolytic capacitor.

Because this part is scheduled for discontinuation and is not recommended for new designs, it is especially appropriate for maintenance, replacement, or limited-production runs where matching existing specifications and form factor is critical.

Request a quote or submit an inquiry to receive pricing and availability information for UDB1H2R2MPM, and to discuss suitability for your audio or general-purpose through-hole applications.