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100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000)
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SKU: TES-EV09139
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100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000)
The 100uf 25V Surface Mount Electrolytic Capacitor is a high-capacitance energy storage component designed for compact PCB integration in modern electronics. Professional engineers and manufacturers rely on these capacitors for power supply filtering, decoupling, and bulk energy storage in consumer electronics, industrial control systems, and telecommunications equipment. This product solves the critical challenge of maintaining stable voltage levels and reducing ripple noise in switched-mode power supplies and audio amplification circuits where space constraints demand surface-mount solutions.
Product Overview
Surface mount electrolytic capacitors operate on the principle of charge accumulation between two conductive plates separated by an electrolytic medium. The 100uf 25V configuration provides exceptional capacitance density in a compact footprint, making it ideal for modern miniaturized circuit designs. The electrolytic construction uses an aluminum oxide dielectric with a liquid electrolyte, enabling high capacitance values at moderate voltage ratings. This reel of 1000 units is optimized for automated assembly processes, featuring consistent lead spacing and reliable solder joint formation on standard pick-and-place equipment.
What distinguishes this capacitor is its balance between performance and manufacturability. The 25V voltage rating provides adequate safety margin for 12V and 5V system applications with transient protection, while the 100uf capacitance handles significant energy storage demands in power conversion circuits. The surface mount package eliminates through-hole drilling requirements, reducing PCB manufacturing costs and assembly time. These capacitors exhibit low equivalent series resistance (ESR) and stable capacitance across the operating temperature range of -40°C to +85°C, ensuring reliable performance in demanding industrial and consumer applications.
Key Specifications
| Specification | Details |
| Product Type | Surface Mount Electrolytic Capacitor |
| Capacitance | 100 microfarads (100uf) |
| Voltage Rating | 25V DC |
| Package Type | SMD (Surface Mount Device) |
| Equivalent Series Resistance | Typically 0.5-1.2 ohms at 1kHz |
| Operating Temperature Range | -40°C to +85°C |
| Quantity per Reel | 1000 units |
| Tolerance | ±20% at 120Hz, 20°C |
| Ripple Current Rating | Typically 800mA at 85°C, 100kHz |
| Shelf Life | 12 months from manufacturing date |
| Brand | Original/Authentic |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
Key Features
- High Capacitance Density: 100uf rating delivers substantial energy storage in a compact SMD footprint, reducing overall PCB size and manufacturing complexity
- Low ESR Performance: Equivalent Series Resistance optimized for high-frequency switching applications, minimizing voltage ripple and heat dissipation in power supplies
- Wide Temperature Stability: Operating range from -40°C to +85°C ensures reliable capacitance retention across industrial and consumer temperature environments
- Automated Assembly Ready: Reel packaging with 1000 units supports seamless integration with pick-and-place equipment for high-volume manufacturing
- Robust Voltage Rating: 25V rating provides adequate safety margin for 5V and 12V systems with built-in transient protection capability
- Consistent Quality: Authentic sourcing with manufacturing batch traceability ensures uniform electrical characteristics across all units
Applications and Use Cases
- Switch Mode Power Supply Filtering: Bulk capacitance filtering in SMPS circuits to reduce output voltage ripple and stabilize DC rails in consumer electronics and industrial power converters
- Audio Amplifier Coupling and Bypass: Energy storage for audio signal coupling stages and power supply bypassing in portable audio devices, guitar amplifiers, and professional audio equipment
- Microcontroller and FPGA Decoupling: Primary decoupling capacitor for microprocessor power pins where 100uf provides localized energy reserve for transient current demands during instruction execution
- LED Driver Circuits: Bulk capacitance in LED lighting drivers and constant current sources to maintain stable output during high-frequency switching transitions
- Battery Charging Circuits: Energy storage in lithium-ion and lead-acid battery charging circuits where 100uf handles ripple current from rectified AC sources
- Telecommunications Equipment: Power supply filtering in network switches, routers, and telecom infrastructure where reliability and ripple rejection are critical
How to Use
Installation of the 100uf 25V surface mount capacitor requires proper PCB layout and solder reflow procedures. Position the capacitor on the PCB with the positive terminal aligned to the marked pad, maintaining minimum 1.5mm spacing from adjacent components to prevent thermal interference during reflow soldering. The capacitor should be mounted close to the power supply input or load requiring decoupling, minimizing trace length to reduce parasitic inductance and maximize high-frequency noise rejection. Ensure adequate copper pour beneath the capacitor pads to facilitate uniform heat distribution during the reflow process.
During circuit design, verify that the applied voltage never exceeds 25V DC under normal or transient conditions. For power supply applications, calculate the required bulk capacitance based on acceptable voltage ripple percentage and load current changes. Typically, 100uf is suitable for 5V and 12V rails handling 1-5 ampere load transients. In high-reliability applications, implement voltage derating by limiting operating voltage to 80 percent of the 25V rating, extending component lifespan and improving reliability margins. Always include appropriate input protection diodes and current-limiting resistors in charging circuits to prevent reverse voltage and excessive inrush current damage.
Frequently Asked Questions
What is the difference between electrolytic and ceramic capacitors for decoupling applications?
Electrolytic capacitors like this 100uf 25V unit provide high capacitance values in compact packages, making them ideal for bulk energy storage and low-frequency filtering. Ceramic capacitors offer superior high-frequency response and lower ESR but with significantly lower capacitance per unit volume. For optimal power supply design, use electrolytic capacitors for primary bulk filtering and ceramic capacitors for high-frequency decoupling near integrated circuits. The 100uf electrolytic handles transient current demands while ceramic capacitors suppress high-frequency noise above 100kHz.
Can I use this 25V capacitor in a 12V application?
Yes, using a 25V rated capacitor in a 12V application is excellent design practice. The voltage rating indicates the maximum safe operating voltage, so operating at 12V provides a comfortable safety margin of approximately 50 percent derating. This extended voltage margin increases capacitor lifespan, reduces ESR variation, and improves reliability in systems with transient overvoltages. For automotive or industrial applications with voltage spikes, the 25V rating provides superior protection compared to exact-voltage-rated capacitors.
What does ESR mean and why is it important in power supply design?
Equivalent Series Resistance (ESR) represents the internal resistance of the capacitor, typically 0.5-1.2 ohms at 1kHz for this 100uf unit. Low ESR is critical in switching power supplies because it directly determines voltage ripple magnitude and heat dissipation. High ESR causes excessive voltage ripple and component heating, potentially damaging sensitive electronics. The low ESR of quality electrolytic capacitors ensures efficient energy transfer and minimal voltage deviation during high-frequency switching transitions, maintaining stable power delivery to microprocessors and sensitive analog circuits.
How should I store these capacitors before use?
Store the reel of 1000 capacitors in a cool, dry environment between 15°C and 25°C with relative humidity below 65 percent. Avoid exposure to direct sunlight, moisture, and corrosive chemicals that degrade the electrolytic medium. The manufacturer specifies a 12-month shelf life from the manufacturing date, after which capacitance may drift and ESR may increase. Keep the reel in its original packaging to prevent mechanical damage and moisture absorption. Before using capacitors stored beyond 6 months, verify capacitance and ESR with appropriate test equipment to ensure specifications remain within acceptable tolerances.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy 100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000) Online in India
Purchase the 100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000) online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000) with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product
100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000)
The 100uf 25V Surface Mount Electrolytic Capacitor is a high-capacitance energy storage component designed for compact PCB integration in modern electronics. Professional engineers and manufacturers rely on these capacitors for power supply filtering, decoupling, and bulk energy storage in consumer electronics, industrial control systems, and telecommunications equipment. This product solves the critical challenge of maintaining stable voltage levels and reducing ripple noise in switched-mode power supplies and audio amplification circuits where space constraints demand surface-mount solutions.
Product Overview
Surface mount electrolytic capacitors operate on the principle of charge accumulation between two conductive plates separated by an electrolytic medium. The 100uf 25V configuration provides exceptional capacitance density in a compact footprint, making it ideal for modern miniaturized circuit designs. The electrolytic construction uses an aluminum oxide dielectric with a liquid electrolyte, enabling high capacitance values at moderate voltage ratings. This reel of 1000 units is optimized for automated assembly processes, featuring consistent lead spacing and reliable solder joint formation on standard pick-and-place equipment.
What distinguishes this capacitor is its balance between performance and manufacturability. The 25V voltage rating provides adequate safety margin for 12V and 5V system applications with transient protection, while the 100uf capacitance handles significant energy storage demands in power conversion circuits. The surface mount package eliminates through-hole drilling requirements, reducing PCB manufacturing costs and assembly time. These capacitors exhibit low equivalent series resistance (ESR) and stable capacitance across the operating temperature range of -40°C to +85°C, ensuring reliable performance in demanding industrial and consumer applications.
Key Specifications
| Specification | Details |
| Product Type | Surface Mount Electrolytic Capacitor |
| Capacitance | 100 microfarads (100uf) |
| Voltage Rating | 25V DC |
| Package Type | SMD (Surface Mount Device) |
| Equivalent Series Resistance | Typically 0.5-1.2 ohms at 1kHz |
| Operating Temperature Range | -40°C to +85°C |
| Quantity per Reel | 1000 units |
| Tolerance | ±20% at 120Hz, 20°C |
| Ripple Current Rating | Typically 800mA at 85°C, 100kHz |
| Shelf Life | 12 months from manufacturing date |
| Brand | Original/Authentic |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
Key Features
- High Capacitance Density: 100uf rating delivers substantial energy storage in a compact SMD footprint, reducing overall PCB size and manufacturing complexity
- Low ESR Performance: Equivalent Series Resistance optimized for high-frequency switching applications, minimizing voltage ripple and heat dissipation in power supplies
- Wide Temperature Stability: Operating range from -40°C to +85°C ensures reliable capacitance retention across industrial and consumer temperature environments
- Automated Assembly Ready: Reel packaging with 1000 units supports seamless integration with pick-and-place equipment for high-volume manufacturing
- Robust Voltage Rating: 25V rating provides adequate safety margin for 5V and 12V systems with built-in transient protection capability
- Consistent Quality: Authentic sourcing with manufacturing batch traceability ensures uniform electrical characteristics across all units
Applications and Use Cases
- Switch Mode Power Supply Filtering: Bulk capacitance filtering in SMPS circuits to reduce output voltage ripple and stabilize DC rails in consumer electronics and industrial power converters
- Audio Amplifier Coupling and Bypass: Energy storage for audio signal coupling stages and power supply bypassing in portable audio devices, guitar amplifiers, and professional audio equipment
- Microcontroller and FPGA Decoupling: Primary decoupling capacitor for microprocessor power pins where 100uf provides localized energy reserve for transient current demands during instruction execution
- LED Driver Circuits: Bulk capacitance in LED lighting drivers and constant current sources to maintain stable output during high-frequency switching transitions
- Battery Charging Circuits: Energy storage in lithium-ion and lead-acid battery charging circuits where 100uf handles ripple current from rectified AC sources
- Telecommunications Equipment: Power supply filtering in network switches, routers, and telecom infrastructure where reliability and ripple rejection are critical
How to Use
Installation of the 100uf 25V surface mount capacitor requires proper PCB layout and solder reflow procedures. Position the capacitor on the PCB with the positive terminal aligned to the marked pad, maintaining minimum 1.5mm spacing from adjacent components to prevent thermal interference during reflow soldering. The capacitor should be mounted close to the power supply input or load requiring decoupling, minimizing trace length to reduce parasitic inductance and maximize high-frequency noise rejection. Ensure adequate copper pour beneath the capacitor pads to facilitate uniform heat distribution during the reflow process.
During circuit design, verify that the applied voltage never exceeds 25V DC under normal or transient conditions. For power supply applications, calculate the required bulk capacitance based on acceptable voltage ripple percentage and load current changes. Typically, 100uf is suitable for 5V and 12V rails handling 1-5 ampere load transients. In high-reliability applications, implement voltage derating by limiting operating voltage to 80 percent of the 25V rating, extending component lifespan and improving reliability margins. Always include appropriate input protection diodes and current-limiting resistors in charging circuits to prevent reverse voltage and excessive inrush current damage.
Frequently Asked Questions
What is the difference between electrolytic and ceramic capacitors for decoupling applications?
Electrolytic capacitors like this 100uf 25V unit provide high capacitance values in compact packages, making them ideal for bulk energy storage and low-frequency filtering. Ceramic capacitors offer superior high-frequency response and lower ESR but with significantly lower capacitance per unit volume. For optimal power supply design, use electrolytic capacitors for primary bulk filtering and ceramic capacitors for high-frequency decoupling near integrated circuits. The 100uf electrolytic handles transient current demands while ceramic capacitors suppress high-frequency noise above 100kHz.
Can I use this 25V capacitor in a 12V application?
Yes, using a 25V rated capacitor in a 12V application is excellent design practice. The voltage rating indicates the maximum safe operating voltage, so operating at 12V provides a comfortable safety margin of approximately 50 percent derating. This extended voltage margin increases capacitor lifespan, reduces ESR variation, and improves reliability in systems with transient overvoltages. For automotive or industrial applications with voltage spikes, the 25V rating provides superior protection compared to exact-voltage-rated capacitors.
What does ESR mean and why is it important in power supply design?
Equivalent Series Resistance (ESR) represents the internal resistance of the capacitor, typically 0.5-1.2 ohms at 1kHz for this 100uf unit. Low ESR is critical in switching power supplies because it directly determines voltage ripple magnitude and heat dissipation. High ESR causes excessive voltage ripple and component heating, potentially damaging sensitive electronics. The low ESR of quality electrolytic capacitors ensures efficient energy transfer and minimal voltage deviation during high-frequency switching transitions, maintaining stable power delivery to microprocessors and sensitive analog circuits.
How should I store these capacitors before use?
Store the reel of 1000 capacitors in a cool, dry environment between 15°C and 25°C with relative humidity below 65 percent. Avoid exposure to direct sunlight, moisture, and corrosive chemicals that degrade the electrolytic medium. The manufacturer specifies a 12-month shelf life from the manufacturing date, after which capacitance may drift and ESR may increase. Keep the reel in its original packaging to prevent mechanical damage and moisture absorption. Before using capacitors stored beyond 6 months, verify capacitance and ESR with appropriate test equipment to ensure specifications remain within acceptable tolerances.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy 100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000) Online in India
Purchase the 100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000) online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 100uf 25V Surface Mount Electrolytic Capacitor (Reel of 1000) with fast shipping and expert support.
Our team in Bengaluru is available 24/7 to support your journey from product