NPM

Products Dimension(mm)

Frequency correction factor

YMIN NPM Series: Redefining Capacitor Performance Limits for High-End Electronic Devices

In high-end fields such as 5G communications, aerospace, and medical electronics, the lifespan and stability of traditional electrolytic capacitors have become system bottlenecks. YMIN's NPM series of conductive polymer aluminum solid electrolytic capacitors, with the world's smallest diameter of 3.55mm, a military-grade operating temperature range of -55°C to 105°C, and ultra-low ESR at 100kHz, sets a new benchmark for next-generation high-density electronic designs.

I. Disruptive Technological Breakthroughs

1. Nanoscale Conductive Polymer Technology
• Revolutionary High-Frequency Performance:

Using nanoscale conductive polymers to replace traditional electrolytes, the capacitors achieve an ESR as low as 0.015Ω at 100kHz (6.3V/270μF model), reducing energy consumption by 80% compared to liquid electrolytic capacitors. High-frequency ripple current absorption capacity is increased fivefold, completely eliminating the hum problem in switching power supplies.

• Self-healing safety mechanism:

In the event of overvoltage, polymer molecular chains reorganize to form a self-healing layer, mitigating the risk of explosion caused by depletion of the liquid capacitor electrolyte. Verified according to IEC 60384-24 standards, the short-circuit failure rate is less than 0.001ppm.

2. Adaptability to extreme environments

• Wide temperature range, military standard:

Impedance change at -55°C low temperature startup is ≤7.2x (industry average 15x), and capacity decay after accelerated aging at 105°C for 2000h is ≤8%. • Double Protection Structure:

• Vacuum potting process withstands high humidity environments up to 98% RH (ESR increase ≤ 35% after 60°C/1000h testing).

• Aluminum shell-polymer composite heat sink layer improves thermal conductivity to 8.3W/mK.

3. Record-breaking Miniaturization

• World's smallest aspect ratio of 3.55×11mm:

Achieving 220μF capacitance (6.3V) within a Φ3.55mm footprint, saving 78% space compared to traditional SMD packages. Pins utilize 0.4mm ultra-thin gold-plated copper wire, passing 20G mechanical shock testing (MIL-STD-883H).

• 3D Stacking Process:

The anodized aluminum foil is treated with nano-etching technology, resulting in an effective surface area of ​​120m²/g, increasing capacitance density by 300% compared to traditional processes.

II. Analysis of Core Technical Parameters

1. High-Frequency Loss Model

P_{loss} = I_{rms}^2 × ESR_{100kHz} + (2πfC)^2 × ESL^2

When f > 100kHz, the ESL effect is reduced to 1/6 that of traditional capacitors. Taking the 50V/22μF model as an example:
• 98.3% effective capacity retention at 500kHz

• Ripple current carrying capacity is 2.8 times the industry standard

2. Environmental Adaptability Matrix
Stress Conditions Test Standards NPM Performance Industry Average

Temperature Cycle (-55°C to 105°C) MIL-STD-202G ΔC/C ≤ ±5% ±15%

Mechanical Vibration (10-2000Hz) GJB150.16A Resonance Point Displacement <0.1mm 0.3mm

Salt Spray Corrosion (96h) IEC 60068-2-11 Lead Corrosion Area <2% 8%

3. Accelerated Life Model

Derived based on the Arrhenius Law:

L_{actual} = L_{test} × 2^{(T_{test} - T_{actual})/10}

105°C/2000h test yields an equivalent lifespan of 128,000 hours (≈15 years) at 25°C.

Why choose the NPM series?

When your design faces:

✅ Capacitor whine in high-frequency circuits
✅ System failure caused by extreme temperature differences
✅ Miniaturization and high reliability cannot be achieved simultaneously
✅ Maintenance-free operation for over ten years is required

The YMIN NPM series, with its military-grade reliability, record-breaking miniaturization, and ultra-wide temperature adaptability, has become a cornerstone of high-end electronic design. Offering full voltage coverage from 6.3V/270μF to 100V/4.7μF, supports:

• Parameter customization (±5% capacitance accuracy)

• Package reconfiguration (3D stacking heterogeneous integration)

• Joint verification (environmental adaptability testing)