UPT2D121MHD

The UPT2D121MHD is an aluminum electrolytic capacitor in a radial-can package, rated 120 µF at 200 V. It delivers high ripple-current capability and a long endurance target, making it suitable for general-purpose and ballast-related power applications where compact size and sustained performance matter.

Designed as a polarized, radial-lead component, the UPT2D121MHD combines a small footprint (L: 3.05 × D: 1.25 cm) with robust electrical and thermal characteristics, including an operating temperature range from −40 °C to +105 °C and a specified 5000 hours lifetime at 105 °C under rated conditions.

Key Features

• Electrical rating: 120 µF capacitance at 200 V DC with ±20% tolerance, providing predictable energy storage for filtering and smoothing functions.
• High ripple-current capability: Rated ripple current of 530 mA at 120 Hz (105 °C) and 848 mA at 10 kHz, with frequency coefficients available to scale ripple performance across common frequencies.
• Long endurance: Endurance specified as 5000 hours at 105 °C with D.C. bias plus rated ripple current, with capacitance change, tan δ and leakage current limits defined for post-test verification.
• Thermal and low-temperature stability: Operating temperature −40 °C to +105 °C; low-temperature impedance stability for the 200 V rating is Z(−25 °C) / Z(+20 °C) ≤ 3.
• Loss and leakage specifications: tan δ (max) for 200 V is 0.12; leakage current after 2 minutes at 20 °C is specified as not more than 0.06CV + 10 µA, enabling predictable standby and leakage behavior.
• Packaging & mounting: Radial lead, can-style package with 5 mm lead spacing and a compact L×D footprint (3.05 × 1.25 cm) for through-hole assemblies.
• Environmental compliance: RoHS compliant, aligned with modern lead-free and restricted-substance requirements.

Typical Applications

• Ballasts and lighting control: High ripple capability and long-life endurance suit AC ballast circuits and electronic lighting drivers that require sustained current handling.
• Power supplies and converters: Used for bulk filtering and ripple suppression in general-purpose power supplies where 200 V ratings and compact radial cans are preferred.
• Industrial electronics: General-purpose decoupling and smoothing in industrial control equipment that operates across −40 °C to +105 °C.

Unique Advantages

• High ripple tolerance: Explicit ripple ratings at 120 Hz and 10 kHz and published frequency coefficients allow engineers to size capacitors accurately for target ripple environments.
• Compact footprint with radial mounting: Small L×D dimensions and 5 mm lead spacing enable space-efficient through-hole PCB layouts while keeping assembly straightforward.
• Defined long-life specification: 5000 hours at 105 °C under rated conditions gives a clear expectation for endurance in elevated-temperature applications.
• Predictable electrical behavior: Documented tan δ, leakage current formula, and low-temperature impedance ratios support reliable simulation and margining in designs.
• Regulatory alignment: RoHS compliance supports selection for products requiring restricted-substance adherence.

Why Choose UPT2D121MHD?

UPT2D121MHD positions itself as a compact, durable aluminum electrolytic solution for engineers needing reliable ripple handling and long-term endurance in radial-can form. Its combination of a 200 V rating, 120 µF capacitance, defined ripple currents across frequencies, and a 5000-hour life at 105 °C makes it suitable for general-purpose power filtering and ballast-related applications where predictable performance is essential.

This part is well suited to designers and procurement teams looking for a through-hole polarized capacitor with clear electrical limits and environmental compliance. The measured specifications—tan δ, leakage current formula, impedance stability, and frequency-dependent ripple coefficients—support accurate design margining and lifecycle expectations.

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