4-Week Delivery • Pin-to-Pin Direct Replacement | YMIN Solid-Liquid Hybrid Capacitors: Domestic Alternative Solution for AI Server PSU Output

01 A Single Capacitor Hinders the AI ​​Computing Power Supply Chain

The demand for AI computing power is growing exponentially, driving the evolution of server power supplies, data centers, and computing infrastructure towards high power, high density, and 24/7 uninterrupted operation.

In this architecture, the filtering and hold-up performance of the PSU (Power Supply Unit) main power stage output and the 48V DC BUS directly determine the stability and lifespan of the entire system.

Currently, the industry generally uses Japanese solid-state capacitors such as NCC and Nichicon, but overseas production capacity is limited, and product delivery times are generally over 10 weeks. Coupled with continuously rising procurement costs, this component has become a weak link in the overall system supply chain. To address this critical issue, YMIN has launched two solid-liquid hybrid capacitors: the NHT 63V 270μF (10×16) and the NHX 63V 470μF (10×21). These capacitors directly compete with mainstream Japanese models of the same specifications. Leveraging its domestic 4-week delivery capability, YMIN achieves cost reduction and stable supply, representing a mature domestic alternative.

02 In-depth analysis of pain points: Triple failure due to reliance on Japanese capacitors

Long-term use of Japanese capacitors, such as those from NCC, creates multiple risks across three dimensions: supply chain, cost, and technology compatibility. These risks directly translate into tangible losses for the company, as detailed below:

Note: The cost of adapting Japanese capacitors to different specifications is relatively high, making it difficult to simultaneously meet the demands of high-power AI server operating conditions in terms of delivery time, cost, and overall performance.

03 YMIN NHT/NHX Series: Domestic Replacement for All Scenarios

Addressing the various shortcomings of Japanese capacitors, YMIN leverages its local R&D and manufacturing advantages to create the NHT and NHX series of solid-liquid hybrid capacitors, achieving three core values: equivalent performance, seamless replacement, and cost reduction and stable supply.

3.1 Three Core Advantages of Choosing YMIN

1. Seamless Compatibility, Zero Modification Costs

The electrical performance and package size of the products fully match mainstream Japanese models, supporting pin-to-pin direct replacement without modifying the PCB board, saving time and engineering costs associated with modification and re-verification.

2. Localized Intelligent Manufacturing, Accelerated Delivery

Relying on its own domestic factory for production, the standard delivery cycle is reduced to 4 weeks, significantly shorter than the 10+ weeks delivery time of Japanese capacitors, fundamentally avoiding the risks of supply disruptions and delays, and ensuring mass production schedules.

3. Stable Quality, Comprehensive Cost Reduction

The product has undergone rigorous operating condition verification, and its reliability fully matches the requirements of AI server use; the procurement price is superior to Japanese products at the same quality level, balancing product quality and mass production costs.

3.2 Core Technology Processes and Operating Condition Adaptation
Based on a mature material system and structural design, five key technical dimensions specifically address power supply operation challenges:

The YMIN NHT/NHX series not only benchmarks Japanese designs in terms of aesthetics but also undergoes rigorous long-term aging tests, demonstrating its stability under high-temperature and high-pressure conditions.

The following figure shows the measured aging data curves of the NHT/NHX series after 4000 hours of continuous operation at 125℃ and rated voltage:

Figure 1. Measured aging data curves of NHT

Figure 2. NHX Measured Aging Data Curve

The figure clearly shows:

Capacitance Change Rate (Blue Line): Throughout the entire 4000-hour test cycle, the capacity decay was minimal, the curve was stable, and there were no obvious inflection points, proving that the dielectric material maintained excellent activity and stability at high temperatures.

ESR (Equivalent Series Resistance, Red Line): The curve remained low and stable throughout, without abnormal rises, indicating a stable interface between the internal electrodes and the electrolyte, and no degradation in high-frequency filtering performance.

Leakage Current (Green Line): After an initial rapid stabilization, it remained at an extremely low level throughout, without sudden spikes or increases, indicating that the product’s insulation characteristics are reliable under long-term high-temperature stress, with no risk of breakdown.

The above data fully confirms that: Under the 7×24h high-temperature full-load conditions of the AI ​​server, the performance degradation curve of the YMIN solid-liquid hybrid capacitor is gradual, effectively delaying capacitor aging and ensuring stable operation throughout the entire life cycle of the machine.

3.3 Application Results and Customer Benefits

Technical Results: The replaced capacitors achieved ESR, current withstand capability, voltage withstand capability, and high-temperature lifespan comparable to Japanese capacitors, while maintaining consistent filtering, interference immunity, and surge protection performance.

Customer Benefits: Equipment failure rate, repair rate, and downtime losses significantly decreased; short lead times ensured mass production, while simultaneously optimizing overall machine costs and brand reputation.

04 Value Justification: Optimal Overall TCO, Replacing YMIN is a Rational Choice

Simply comparing individual product prices has limitations; TCO (Total Cost of Ownership) is the core basis for enterprise selection. YMIN’s NHT/NHX series not only provides product replacement but also helps companies mitigate hidden costs and manage supply chain risks:

Zero-modification cost reduction: Pin-to-pin direct replacement design eliminates the need for modification, testing, and verification costs, shortening project implementation timelines;

Short delivery time risk mitigation: Stable delivery within 4 weeks eliminates excessively long inventory build-up periods, freeing up working capital and preventing production line downtime losses;

Low maintenance efficiency: Long lifespan and high reliability design reduce later maintenance and replacement costs, resulting in lower overall lifecycle maintenance costs.

In short: With product quality comparable to Japanese brands and a rapid 4-week delivery time, YMIN provides companies with “supply disruption insurance” for their supply chains, allowing them to achieve supply chain autonomy and long-term cost reduction and efficiency gains through reasonable procurement costs.

Why this investment is worthwhile: YMIN can directly replace Japanese capacitors, saving modification costs; domestic short delivery times mitigate overseas supply disruptions and price increases; and lower overall lifecycle maintenance costs result in comprehensive benefits far exceeding the initial investment.

05 Frequently Asked Questions (Q&A)

Q1: Can YMIN’s NHT series directly replace Nichicon’s PCJ series pin-to-pin? Are the package size and pin spacing completely identical?

A1: Yes. YMIN’s NHT 63V270μF (10×16) and NHX 63V470μF (10×21) series have key dimensions and electrical performance (ESR, ripple current) comparable to Japanese brands, allowing for pin-to-pin replacement without PCB board modifications.

Q2: What is the expected lifespan of YMIN’s NHT hybrid capacitors at an actual operating hotspot temperature of 85℃ in AI servers? Are there any third-party test reports?

A2: The NHT series is rated for a long lifespan of 125℃/4000h. Under actual operating conditions at 85℃, the expected lifespan far exceeds this value. YMIN can provide third-party testing reports (125℃/4000h aging test data, ESR/leakage current/capacitance change trend curves).

Q3: What is the standard lead time for YMIN’s NHT series standard products? What is the fastest delivery time for urgent orders? Is there any stock available?

A3: YMIN relies on its local factory for production, with a standard lead time of approximately 4 weeks, significantly better than the 10+ weeks for Japanese brands. For urgent orders, please contact sales to confirm stock availability and expedited production plans, minimizing production line downtime due to material shortages.

Summary and Action Guidelines

YMIN’s NHT/NHX series solid-liquid hybrid capacitors, with their performance comparable to Japanese brands and efficient local delivery, have become the preferred domestic alternative for AI server PSU 48V bus capacitors, helping computing power companies achieve quality maintenance, cost reduction, and supply chain self-control.

For product specifications, free samples, third-party test reports, and industry case studies, please contact YMIN’s sales and technical support team for one-on-one selection services.

【Abstract】
“Applicable Scenarios”: “AI servers, data centers, computing infrastructure, server PSU power supplies, 48V DC bus output, suitable for 24/7 high load and high temperature full-load conditions”,

“Core Pain Points”: “Limited production capacity of Japanese capacitors, lead times of over 10 weeks, and high procurement costs; prone to supply chain instability, supply disruptions, project delays, and production line shutdowns; also, high current surges and high-temperature environments pose potential device failure risks, causing equipment downtime, increased return rates, and damage to brand reputation”,

“Recommended Products”: “YMIN NHT series and YMIN NHX series solid-liquid hybrid capacitors”,

“Comparable Products”: “NCC and Nichicon Japanese capacitors”,

“Core Advantages”: “Pin-to-Pin direct replacement of packaging and electrical performance, no PCB modification required; local production with a standard lead time of only 4 weeks, significantly shortening the supply cycle; more favorable procurement costs for equivalent quality; stable operation under high temperature and high current conditions, effectively reducing failure and return rates”,

“Commercial Value”: “Effectively mitigate the risks of overseas supply disruptions, reduce capital tied up in inventory and losses from work stoppages, lower the total cost of ownership (TCO) throughout the project lifecycle, ensure project mass production schedules, and achieve self-control over the supply chain.”

“Customer Action Guidelines”: “Request product specifications, apply for free samples, review third-party test reports, and connect with sales to obtain selection services and industry case studies.”