LAQ2D122MELB50

The LAQ2D122MELB50 is an aluminum electrolytic capacitor in a snap-in radial can package engineered for general-purpose power applications. It provides 1.2 mF capacitance at a 200 V rated voltage with polarized construction and a compact footprint (L: 5 × D: 3 cm).

Designed for elevated-temperature operation, this component supports continuous service from -25 °C to 105 °C and is specified for long-duration endurance and predictable electrical behavior under rated ripple and DC bias conditions.

Key Features

• Capacitance and Voltage: 1.2 mF capacitance rated at 200 V, suitable for bulk energy storage and smoothing in medium-voltage power circuits.
• Snap-in Radial Can Package: Radial, can-type snap-in mounting for secure chassis or PCB installation and robust mechanical retention.
• High Temperature Operation: Rated operating temperature range of -25 °C to +105 °C to support elevated-temperature environments.
• Endurance: Specified lifetime of 2000 hours at 105 °C with DC bias plus rated ripple current applied; post-test limits include capacitance within ±20% and leakage current at or below initial specified value.
• Ripple Current Performance: Rated ripple current of 2.65 A at 120 Hz and 3.18 A at 10 kHz, enabling use in power conversion and filtering applications with significant AC content.
• Electrical Stability: Capacitance tolerance ±20% and tan δ specified to 0.20 max at 120 Hz, 20 °C; leakage current defined by the datasheet formula I ≤ 3√C μA after 5 minutes at 20 °C.
• Safety Venting: Pressure relief vent designed to operate under abnormal conditions without flame or hazardous ejection of parts.
• Size and Form Factor: Smaller-sized variant with dimensions approximately L: 5 × D: 3 cm and a seated height maximum of 1.969 inch for compact assemblies.

Typical Applications

• Power Supply Smoothing: Bulk capacitance for smoothing DC rails and reducing ripple in medium-voltage power supplies up to 200 V.
• Power Conversion Modules: Energy storage and filtering in inverters, converters, and industrial power modules operating at elevated temperatures.
• Backup and Hold-up Circuits: Energy reservoir in UPS, standby, and hold-up circuits where reliable capacitance and endurance at 105 °C are required.

Unique Advantages

• High-Temperature Endurance: Rated for continuous operation to 105 °C with a defined 2000-hour endurance specification, enabling predictable life in hot environments.
• Clear Ripple Ratings: Published ripple current values at 120 Hz and 10 kHz allow accurate thermal and lifetime planning in AC-heavy applications.
• Robust Safety Design: Integrated pressure relief vent reduces risk under abnormal voltage or stress conditions while meeting the datasheet safety criteria.
• Compact Snap-in Form Factor: Smaller-sized radial can with snap-in terminals simplifies mechanical integration and helps save board or chassis space.
• Datasheet-backed Electrical Limits: Leakage current formula, tan δ limit, and tolerance specifications provide measurable parameters for design validation and reliability projections.

Why Choose LAQ2D122MELB50?

The LAQ2D122MELB50 combines 1.2 mF capacitance at 200 V with snap-in mechanical retention and elevated-temperature capability to 105 °C, making it a practical choice for engineers designing medium-voltage power supplies, power conversion, and backup circuits. Its endurance and ripple specifications give predictable performance under rated stress, while the safety venting and leakage/tan δ limits support reliable, spec-driven designs.

Manufactured by Nichicon, this capacitor is targeted at applications that require compact bulk capacitance, clear electrical limits for lifetime planning, and a rugged radial snap-in package for secure assembly in industrial and general-purpose power equipment.

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