UVK2A4R7MDD

The UVK2A4R7MDD is a miniature, radial-lead aluminum electrolytic capacitor from Nichicon’s UVK series, designed for general-purpose electronic assemblies. It delivers a compact polarized capacitance of 4.7 µF with a ±20% tolerance and is optimized for space-constrained through-hole designs.

Key value propositions include a small footprint (φ8 × 11.5 mm body), RoHS compliance, a rated temperature range of −40°C to +85°C, and a specified endurance of 2000 hours at 85°C—making it suitable for a wide range of general-purpose applications where size and reliable electrolytic performance matter. Note: this part is End Of Life.

Key Features

• Capacitance & Tolerance — 4.7 µF nominal capacitance with a tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• Polarized Radial Lead Package — Through-hole radial-lead mounting for straightforward PCB placement and manual or wave solder assembly; lead spacing 2.0 mm (±0.5 mm).
• Compact Miniature Size — Body dimension listed as φ8 × 11.5 mm (height seated max 1.1 cm), enabling use in tight layouts.
• Rated Voltage — 100 V rated voltage as specified for this part number.
• Temperature Range — Operates over −40°C to +85°C to support general-purpose electronic environments.
• Endurance — 2000 hours at 85°C with capacitance change within ±20%, tan δ within specified limits, and leakage current ≤ initial specified value after the test.
• Loss Characteristic (tan δ) — Series datasheet specifies tan δ performance by rated voltage; for a 100 V rating, the series table lists a tan δ max of 0.08 (measured at 120 Hz, 20°C).
• Ripple & Leakage — Low-frequency ripple current 45 mA at 120 Hz and high-frequency ripple current 90 mA at 10 kHz per the part specification; listed leakage current value 165.8 µA.
• Packaging & Compliance — Available in bulk (no terminal forming) / bag packing; RoHS compliant.

Typical Applications

• General-Purpose Electronics — Fits compact board designs that require a small, polarized aluminum electrolytic capacitor for general-purpose smoothing and decoupling.
• Embedded and Consumer Modules — Suited to space-limited modules where a miniature radial electrolytic provides bulk capacitance without large footprint impact.
• Industrial Control and Instrumentation — Applicable where a compact, reliable capacitor with a −40°C to +85°C range and defined endurance is required for routine filtering tasks.

Unique Advantages

• Miniature Footprint: φ8 × 11.5 mm body reduces PCB area compared with larger radial electrolytics.
• Through-Hole Robustness: Radial lead format provides mechanical stability for hand-assembled or wave-soldered through-hole boards.
• Defined High-Temperature Endurance: Rated for 2000 hours at 85°C, enabling predictable life-performance planning.
• Clear Specification Set: Published values for capacitance, tolerance, ripple currents, leakage, and tan δ allow straightforward engineering trade-offs and selection.
• Regulatory Compliance: RoHS compliant for designs targeting restricted-substance conformance.
• Simple Procurement & Packaging Options: Available in bulk and bag packing to match assembly and inventory practices.

Why Choose UVK2A4R7MDD?

UVK2A4R7MDD combines a compact, radial-lead aluminum electrolytic design with clear, measured electrical and environmental specifications—4.7 µF capacitance, 100 V rating, −40°C to +85°C operating range, and a 2000-hour endurance at 85°C. These attributes make it a practical choice for designers who need reliable, space-saving polarized capacitors for general-purpose circuitry.

This part is best suited to engineers and procurement teams specifying through-hole electrolytics for compact power filtering and decoupling applications where RoHS compliance and defined lifecycle characteristics are required. Note that this specific part is currently End Of Life, so availability may be limited.

Request a quote or submit an inquiry to discuss availability, lead times, and pricing for UVK2A4R7MDD. Technical and order-related questions can be directed to the supplier’s sales channels for further assistance.