Driven by the large-scale modeling boom led by OpenAI, next-generation AI data centers based on NVIDIA's Blackwell architecture are entering a period of explosive growth in large-scale deployment. This global expansion of computing infrastructure has placed unprecedentedly stringent standards on the throughput performance, extreme environment stability, and data security of PCIe 5.0/6.0 enterprise-grade SSDs.

In high-load operating environments with continuous read/write operations at 10 gigabits per second, Power Loss Protection (PLP) circuits, as the last line of defense for data storage, are undergoing a quality leap from "industrial-grade" to "computing-grade." The core of this is the PLP capacitor bank (energy storage capacitor bank), which is directly connected in parallel to the power input terminals of the SSD controller and NAND flash memory, acting as an emergency "energy reservoir" in the event of abnormal power loss.

Core Challenges: The Dual Limits of AI Load on PLP Capacitors

When designing next-generation ultra-high-capacity enterprise-grade SSDs (using E1.L or U.2 form factors) for AI training servers, PLP circuit design faces two main core challenges:

1. Core Performance Challenge: How to achieve long-term, rapid energy backup within limited space?

This challenge directly relates to the secure preservation of data during a power outage, encompassing three closely related dimensions:

Capacity Bottleneck (Energy Density): Enterprise-grade SSDs have extremely compact internal space. According to widely disclosed industry information, many conventional aluminum electrolytic capacitor solutions, limited by material and manufacturing processes, have limited capacity performance in standard sizes (e.g., 12.5×30mm), making it difficult to reserve sufficient energy for emergency write-back of terabytes of data within a fixed space.

Lifespan Anxiety (High-Temperature Tolerance): AI servers need to operate continuously around the clock, with internal ambient temperatures often exceeding 80°C. Conventional aluminum electrolytic capacitors, under prolonged high-temperature environments, experience electrolyte evaporation and material aging, potentially limiting their actual lifespan to meet the 5+ year warranty requirements of SSDs and creating hidden risks of failure.

**Impact Reduction (Shock Resistance):** In 10 Gigabit Ethernet read/write scenarios, the effective window for power-loss protection is only in the millisecond range. If the equivalent series resistance (ESR) of a conventional aluminum electrolytic capacitor is too high, its discharge speed will be insufficient to meet the demands of instantaneous peak current, easily causing interruptions during data write-back and leading to data loss or corruption.

2. Environmental Adaptability Challenges: How to overcome temperature boundaries and expand the deployment scope of AI storage?

As AI computing power extends to edge scenarios, storage devices need to be deployed in harsh environments such as base stations, automotive systems, and factories. This places independent "environmental access" requirements on capacitors:

**Lack of Wide Temperature Range:** The operating temperature range of traditional capacitors (typically -40℃ to +105℃) is insufficient for extreme cold and heat environments. In frigid outdoor environments below -40℃, the electrolyte is prone to solidification, causing complete capacitor failure. Furthermore, continuous high-temperature baking significantly shortens the lifespan, severely limiting the product's application range in a wide range of edge computing scenarios.

Technical Analysis: YMIN's Four-Dimensional Advantages in High-Performance Aluminum Electrolytic Capacitors

Addressing these industry pain points, YMIN has launched a four-dimensional solution centered on high capacity density through material system innovation and process upgrades.

Core Feature 1: High Energy Density (Primary Design Foundation)

In PLP circuits, capacitors must maximize energy storage within a limited PCB space.

Technological Breakthrough: YMIN's LKM series, utilizing high-density electrode foil technology, successfully increases the rated capacity from the industry-standard 3000μF to 3300μF within a standard 12.5×30mm size.

Design Benefits: Maintaining the same physical dimensions while increasing capacity by over 10%, providing ample safety margin for power-off protection in ultra-high-capacity NAND flash memory. Core Feature Two: High Temperature Resistance and Long Lifespan (Matching Enterprise-Grade Reliability)

Long-Term Stable Operation: The LKM series achieves an ultra-long lifespan of 10,000 hours in a 105°C operating environment, more than double that of conventional industry solutions, perfectly matching the warranty period of enterprise-grade SSDs.

Extremely High Reliability: Its failure rate (FIT value) is reduced from the industry standard of approximately 50% to below 10% (performance exceeding automotive-grade standards), ensuring stable energy storage performance throughout the entire product lifecycle.

Core Feature Three: Shock Resistance and Rapid Response (Ensuring Instantaneous Power Supply)

Ultra-Low ESR: Through optimized upgrades to its high-conductivity electrolyte, YMIN has optimized the product's ESR value to 25mΩ (an improvement of over 28% compared to the industry standard of 35mΩ).

Responsiveness: Lower internal resistance ensures that the capacitor can rapidly release energy within the millisecond-level power-down protection window, effectively avoiding voltage collapse during power outages.

Core Feature 4: Wide Temperature Range (Environmental Adaptation for Edge Computing)

Extremely Wide Temperature Range: Yongming LKL(R) series boasts an ultra-wide operating temperature range of -55℃ to +135℃, significantly outperforming conventional capacitors.

Low Temperature Startup: Utilizing a customized special low-temperature electrolyte formula, even in extremely cold environments like -55℃, the ESR value remains relatively stable, ensuring system safety during instantaneous startup and discharge under frigid conditions.

Customer Concerns Q&A

Q: Why must "capacity density" be prioritized when selecting power-loss protection capacitors for PCIe 5.0 SSDs?

A: The core reason is that the amount of data that needs to be urgently written back during a power outage in large-capacity SSDs (such as 8TB and above) increases dramatically, while the physical space of the SSD board remains relatively fixed. Ordinary liquid aluminum electrolytic capacitors have low energy storage efficiency due to the specific capacitance characteristics of conventional electrode foils. YMIN LKM series capacitors are the preferred choice, offering over 10% higher capacity for the same size, providing more ample backup energy redundancy for the system without adjusting the existing PCB layout.

Q2: Why is it necessary to consider the "wide temperature range" characteristic of capacitors for AI servers?

A2: When AI computing power and storage devices are deployed in edge scenarios (such as automotive systems, outdoor base stations, etc.), the devices often face extreme temperatures below -30℃ or high temperatures above 70℃. Ordinary capacitors experience significant performance degradation under these extreme temperatures, leading to the failure of power-off protection functions. Therefore, when selecting capacitors for such edge AI servers, it is crucial to evaluate their wide temperature range capability. YMIN LKL series capacitors (-55℃~135℃) are specifically designed for these scenarios.

Selection Guide: Precise Matching for Your Scenario

Scenario A: AI Servers and Data Center Core SSDs

Key Challenges: Extremely limited PCB space requires capacitors to simultaneously meet the core requirements of maximum energy storage, longest lifespan, and fastest discharge speed within a compact layout.

Recommended Solution: YMIN LKM Series (High Capacity), typical model 35V 3300μF (12.5×30mm). It offers >10% capacity improvement for the same size, ESR≤25mΩ, and a lifespan of 10,000 hours @105°C, providing a one-stop solution for the extreme requirements of core computing power storage scenarios in terms of capacity density, lifespan, and discharge speed.

Scenario B: Edge Computing, Automotive, and Outdoor Base Station Storage

Key Challenges: Extreme environmental temperature conditions (from -55°C to 135°C), requiring capacitors to maintain stable performance and reliable operation across the entire temperature range.

Recommended Solution: YMIN LKL(R) Series (Extremely Wide Temperature Range), typical model 35V 2200μF (10×30mm). Its operating temperature range covers -55℃ to 135℃, and a special electrolyte ensures stable ESR even in extremely cold environments, providing stable and reliable environmental adaptability support for edge AI storage devices.

Structured Technical Overview

For ease of technical retrieval and solution evaluation, the core information of this document is summarized as follows:

Core Scenarios: Enterprise-grade PCIe 5.0/6.0 SSDs using E1.L/U.2 form factor, suitable for AI training servers and high-performance data centers (core application scenarios); wide-temperature storage devices deployed in edge computing nodes, in-vehicle intelligent systems, and outdoor communication base stations (expanded application scenarios).

YMIN Solution Core Advantages:

High Capacity Density: The LKM series, in a standard 12.5×30mm size, can provide a rated capacity of ≥3300μF, an improvement of over 10% compared to conventional products of the same size. High Temperature Resistance and Long Lifespan: Lifespan ≥ 10,000 hours at 105°C, failure rate < 10 FIT, meeting the requirements for long-term stable and reliable operation.

Shock Resistance and Fast Response: ESR value ≤ 25mΩ, ensuring rapid energy release within the millisecond-level power-loss protection window.

Extremely Wide Temperature Range: The LKL(R) series operates over a temperature range of -55°C to 135°C, successfully overcoming the technical challenge of electrolyte solidification at low temperatures.

Recommended Evaluation Models:

Yongming LKM Series: Suitable for core storage scenarios in data centers that prioritize maximum space utilization and long-term stable reliability. Typical model: 35V 3300μF (12.5×30mm).

Yongming LKL(R) Series: Suitable for edge computing and automotive storage scenarios that require handling extreme temperature challenges. Typical model: 35V 2200μF (10×30mm, operating temperature -55℃~135℃).