UPW1A392MHD

The UPW1A392MHD is a miniature, high-reliability aluminum electrolytic capacitor in a radial lead can designed for demanding power applications. It delivers 3.9 mF capacitance at 10 V in a compact φ12.5 × 35.5 mm package with radial leads and 5 mm lead spacing.

Engineered for high ripple environments and extended high-temperature service, the UPW1A392MHD suits switching power supplies and automotive-grade designs where low impedance, robust ripple handling and long endurance are required.

Key Features

• Capacitance & Voltage: 3.9 mF (3900 µF) rated at 10 V, with tolerance of −20% to +20% for bulk energy storage and smoothing.
• Low impedance: Specified impedance of 44 mΩ, enabling improved transient performance in power rails.
• High ripple current capability: Low-frequency ripple current 2.134 A (120 Hz) and high-frequency ripple current 2.51 A (10 kHz), supporting demanding switching workloads.
• Long endurance: Life rating of 7000 hours at 105 °C, designed for prolonged high-temperature operation.
• Wide operating temperature: −55 °C to 105 °C, providing thermal headroom across industrial and automotive operating environments.
• Electrical loss (tan δ) and leakage: Dissipation factor (tan δ) 0.23 measured at 20 °C, 120 Hz, and leakage current 1170 µA as supplied.
• Package & mounting: Radial lead can (φ12.5 × 35.5 mm) with 5 mm lead spacing (±0.5 mm) in bulk or bag packing for through-hole assembly.
• AEC qualification: AEC-Q200 rated, suitable for designs that require automotive-grade components.

Typical Applications

• Switching power supplies: Bulk and output filtering where high ripple current capability and low ESR/impedance improve regulation and transient response.
• Automotive electronics: High-reliability energy storage and smoothing in automotive systems, supported by AEC-Q200 rating and extended 105 °C endurance.
• DC bus / power modules: Stabilizing DC rails and absorbing switching transients in compact power assemblies thanks to the capacitor's high capacitance in a small can.
• Industrial power equipment: Applications requiring long-life capacitors capable of sustained operation at elevated temperatures and frequent ripple stress.

Unique Advantages

• High ripple handling: Rated ripple currents of 2.134 A (120 Hz) and 2.51 A (10 kHz) combined with 44 mΩ impedance reduce voltage ripple and thermal stress on the capacitor.
• Compact high-capacitance solution: 3900 µF in a φ12.5 × 35.5 mm can enables significant bulk energy storage in space-constrained through-hole designs.
• Designed for high-temperature endurance: 7000 hours at 105 °C provides predictable lifetime performance for demanding environments.
• Automotive-grade qualification: AEC-Q200 rating supports use in automotive electronics where component qualification is required.
• Practical assembly format: Radial lead configuration with 5 mm lead spacing and bag/bulk packing simplifies through-hole assembly and inventory handling.
• Measured electrical characteristics: Specified tan δ (0.23 at 20 °C, 120 Hz) and leakage current (1170 µA) provide clear, verifiable parameters for design trade-offs.

Why Choose UPW1A392MHD?

The UPW1A392MHD combines a high capacitance density and low impedance in a compact radial lead can, offering engineers a durable option for power filtering, bulk storage and ripple suppression. Its long endurance at 105 °C and AEC-Q200 rating make it appropriate for applications that demand reliability and predictable life under thermal and electrical stress.

This part is well suited to designers targeting switching power supplies, automotive power electronics and industrial power modules who require a verified combination of capacitance, ripple capability and temperature performance backed by Nichicon’s UPW series specifications.

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