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F931E106MCC

Manufacturer: NICHICON

SOLID TANTALUM ELECTROLYTIC CAPACITORS

Partnumber Manufacturer Quantity Availability
F931E106MCC NICHICON 898 In Stock

Description and Introduction

SOLID TANTALUM ELECTROLYTIC CAPACITORS The part **F931E106MCC** is a **NICHICON** capacitor with the following specifications:  

- **Manufacturer:** NICHICON  
- **Series:** F931  
- **Capacitance:** 10 µF (microfarads)  
- **Voltage Rating:** 35V  
- **Tolerance:** ±20%  
- **Temperature Range:** -40°C to +85°C  
- **Lifetime:** 2000 hours at +85°C  
- **Leakage Current:** 3 µA or less  
- **ESR (Equivalent Series Resistance):** 3.5 Ω max at 20°C, 100 kHz  
- **Ripple Current:** 24 mA at 120 Hz, +85°C  
- **Mounting Type:** Through-Hole (Radial Lead)  
- **Polarity:** Polarized (Aluminum Electrolytic)  
- **Diameter:** 6.3 mm  
- **Height:** 11 mm  
- **Lead Spacing:** 2.5 mm  

This capacitor is typically used in power supply filtering, decoupling, and general-purpose applications.

Application Scenarios & Design Considerations

SOLID TANTALUM ELECTROLYTIC CAPACITORS# Technical Documentation: F931E106MCC Aluminum Electrolytic Capacitor

## 1. Application Scenarios

### Typical Use Cases
The F931E106MCC is a  105°C-rated aluminum electrolytic capacitor  primarily employed in power supply circuits where  high ripple current handling  and  extended temperature operation  are critical requirements. Common implementations include:

-  DC-DC converter input/output filtering  in switching power supplies
-  Voltage smoothing  in AC-DC rectification circuits
-  Energy storage/buffering  in motor drive systems
-  Coupling/decoupling  in audio and industrial control equipment
-  Timing circuits  requiring stable capacitance over temperature variations

### Industry Applications
 Industrial Automation : Deployed in PLCs (Programmable Logic Controllers), motor drives, and industrial power supplies where  reliable operation under harsh conditions  is essential. The component's 105°C rating ensures stability in high-ambient temperature environments common in industrial settings.

 Consumer Electronics : Utilized in  LCD/LED television power supplies ,  gaming consoles , and  home audio equipment  where space constraints and cost-effectiveness are balanced with performance requirements.

 Telecommunications Infrastructure : Employed in  base station power systems  and  network equipment  where  long-term reliability  and  temperature resilience  are paramount.

 Renewable Energy Systems : Integrated into  solar inverter circuits  and  wind power converters  where  high ripple current capability  handles variable power conditions.

### Practical Advantages and Limitations
 Advantages: 
-  Extended temperature range  (-55°C to +105°C) enables operation in demanding environments
-  High ripple current rating  (typically 1.8A at 105°C, 100kHz) supports power-intensive applications
-  Long service life  (2,000-5,000 hours at 105°C) reduces maintenance frequency
-  Cost-effective solution  compared to polymer or tantalum alternatives
-  Standardized package  (radial lead) facilitates easy PCB integration

 Limitations: 
-  Electrolyte drying  over time leads to capacitance degradation and ESR increase
-  Voltage derating required  for optimal reliability (typically 80% of rated voltage)
-  Limited frequency response  compared to ceramic capacitors above 100kHz
-  Polarity sensitivity  requires careful installation to prevent catastrophic failure
-  Temperature-dependent parameters  necessitate design margin considerations

## 2. Design Considerations

### Common Design Pitfalls and Solutions
 Pitfall 1: Inadequate Voltage Margin 
-  Issue : Operating at full rated voltage accelerates aging and reduces lifespan
-  Solution : Implement  80% voltage derating  (e.g., use 25V rated capacitor for 20V application)

 Pitfall 2: Excessive Ripple Current 
-  Issue : Operating beyond specified ripple current limits causes overheating and premature failure
-  Solution : Calculate  worst-case ripple current  and parallel multiple capacitors if necessary

 Pitfall 3: Reverse Voltage Application 
-  Issue : Even brief reverse polarization can cause immediate failure
-  Solution : Implement  polarity protection circuits  and strict manufacturing controls

 Pitfall 4: Thermal Management Neglect 
-  Issue : High ambient temperatures combined with self-heating reduce operational life
-  Solution : Ensure  adequate airflow , maintain  safe distance  from heat sources, and consider  temperature monitoring 

### Compatibility Issues with Other Components
 Semiconductor Interactions : The capacitor's  ESR characteristics  can affect switching regulator stability. Ensure compatibility with  controller IC requirements  for stable feedback loops.

 Mixed Capacitor Technologies : When used alongside  ceramic capacitors , consider  impedance matching  and  resonance effects  in the frequency domain.

 Electrochemical Compatibility : Avoid placement

Alternative Part Number

  • TAJE107M016RNJ --: Tantalum capacitor with similar 100uF/25V class rating in a comparable case size; widely available AVX TAJ series is a common drop-in for F931 series.
  • 293D107X9025E2TE3 --: Solid tantalum capacitor with matching capacitance/voltage class and molded case; Vishay 293D series is a well-known cross for F931-style parts.
  • T491E107M025AT --: Tantalum capacitor in the same capacitance/voltage range with similar E-case footprint; KEMET T491 is a standard alternative series.
  • TAJE106M035RNJ --: Tantalum capacitor with the same 10uF capacitance and 25V rating in a comparable E-case size, widely available and a common drop-in substitute.
  • 293D106X9025E2TE3 --: Solid tantalum 10uF 25V capacitor in E-case with low ESR, suitable replacement for the Nichicon F93 series in decoupling and filtering roles.
  • T491E106K025AT --: 10uF 25V tantalum capacitor in E-case with similar ESR and tolerance characteristics, a reliable cross-series alternative.

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