100uF 25V 2917 SMD Tantalum Capacitor (Pack of 5)

The 100uF 25V 2917 SMD Tantalum Capacitor is a high-reliability surface-mount energy storage component designed for compact electronic assemblies requiring stable capacitance and low ESR performance. Professional electronics engineers and PCB manufacturers use these capacitors in power supply filtering, voltage regulation circuits, and signal conditioning applications where space constraints demand miniaturized form factors. This product solves the critical challenge of maintaining voltage stability and reducing ripple noise in modern switched-mode power supplies and portable consumer electronics while occupying minimal board real estate.

Product Overview

Tantalum capacitors operate through a unique electrochemical principle where tantalum pentoxide serves as the dielectric material, offering superior volumetric efficiency compared to ceramic or aluminum electrolytic alternatives. The 2917 case size (7.3mm x 4.3mm x 2.8mm) represents an industry-standard SMD footprint that balances capacitance density with thermal management requirements. The 100uF capacitance at 25V rating provides substantial charge storage capability for decoupling high-current digital logic circuits, filtering DC power rails, and stabilizing voltage references in precision analog circuits. Tantalum's inherent advantages include excellent frequency response characteristics, minimal leakage current, and superior temperature stability across the industrial operating range of -55°C to +125°C.

What distinguishes this 100uF 25V configuration is its optimal balance between capacitive performance and voltage derating margins for standard 3.3V and 5V logic circuits. The pack of five units provides economical procurement for prototype development, small-batch PCB assembly, or replacement stock maintenance in production facilities. Tantalum capacitors exhibit virtually no aging characteristics, unlike ceramic X7R capacitors, ensuring predictable performance throughout the product lifecycle. The low equivalent series resistance (ESR) specification of these SMD tantalum units enables effective transient current absorption, critical for maintaining signal integrity in high-speed digital applications and preventing voltage sag during load transients.

Key Specifications

Specification	Details
Product Type	SMD Tantalum Capacitor
Capacitance Value	100 microfarads (100uF)
Voltage Rating	25 volts DC
Case Size	2917 (7.3mm x 4.3mm x 2.8mm)
Packaging	Pack of 5 units
Polarity	Polarized (marked positive lead)
Operating Temperature	-55°C to +125°C
Equivalent Series Resistance	Typically 100-150 milliohms at 100kHz
Leakage Current	Less than 0.5 microamps at rated voltage
Tolerance	Plus 20% minus 10% standard
Brand	Original/Authentic Grade
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 in compact 2917 SMD package delivers superior volumetric efficiency, enabling space-constrained PCB designs without sacrificing filtering performance
• Low Equivalent Series Resistance: Typically 100-150 milliohms at 100kHz specification ensures rapid charge delivery for transient current demands in switching power supplies and digital circuits
• Excellent Frequency Response: Tantalum chemistry provides consistent impedance characteristics across audio and ultrasonic frequency ranges, ideal for precision analog signal conditioning
• Superior Reliability: Minimal aging characteristics and stable capacitance retention over product lifetime eliminate drift-related circuit performance degradation
• Wide Operating Range: -55°C to +125°C temperature specification accommodates industrial, automotive, and military-grade applications with thermal margin
• Polarized Configuration: Clearly marked positive lead simplifies PCB assembly orientation and reduces manufacturing errors in automated pick-and-place operations

Applications and Use Cases

• Power Supply Filtering: Decoupling capacitors in switched-mode power supply output stages to reduce voltage ripple and stabilize DC rails for digital logic circuits operating at 3.3V or 5V
• Microcontroller Power Distribution: Bulk capacitance for ARM Cortex-M microcontroller decoupling networks, absorbing transient currents during instruction execution and peripheral switching events
• Audio Signal Conditioning: Coupling and filtering applications in audio amplifier input stages and DAC output networks where tantalum's low distortion characteristics preserve signal fidelity
• Voltage Reference Stabilization: Post-regulator filtering for precision analog reference circuits in data acquisition systems, ensuring sub-millivolt ripple performance for 16-bit ADC applications
• Memory Module Decoupling: DRAM and SRAM power supply filtering in embedded systems where burst access patterns create rapid current transients requiring low-ESR capacitive response
• Industrial Control Electronics: Power conditioning in programmable logic controller (PLC) input modules and industrial sensor interface circuits operating in electrically noisy factory environments

How to Use

Proper installation of the 100uF 25V 2917 SMD Tantalum Capacitor requires strict attention to polarity orientation, as reverse voltage connection will cause immediate capacitor failure and potential circuit damage. Identify the positive lead marking on the capacitor body and align it with the positive pad on your PCB layout, typically indicated by a plus symbol or thicker trace. The negative lead connects to ground or the return path. During PCB assembly, ensure reflow soldering temperatures comply with IPC-A-610 standards, maintaining peak solder temperature between 245-260°C for no more than 10 seconds to prevent thermal degradation of the tantalum element. Verify proper solder joint formation using X-ray inspection for critical applications, as insufficient wetting can result in intermittent connection failures.

For circuit design implementation, place the 100uF capacitor as close as possible to the power supply input pins of integrated circuits, minimizing trace inductance that would otherwise reduce high-frequency filtering effectiveness. In multi-stage power distribution networks, combine this 100uF tantalum capacitor with smaller ceramic capacitors (0.1uF and 0.01uF values) to create a hierarchical decoupling strategy that addresses both low-frequency bulk filtering and high-frequency transient response requirements. Always verify your circuit voltage never exceeds 25V during normal operation or transient overvoltage conditions, maintaining a minimum 20 percent voltage derating margin to ensure long-term reliability and prevent capacitance degradation. For sensitive analog circuits, consider mounting the capacitor on a separate ground plane island to minimize return path impedance and ground noise coupling into precision measurement nodes.

Frequently Asked Questions

What is the difference between tantalum and ceramic capacitors for 25V applications?

Tantalum capacitors offer superior volumetric efficiency, delivering higher capacitance values in smaller packages compared to ceramic alternatives. Unlike X7R ceramic capacitors that exhibit significant capacitance variation with temperature and applied voltage, tantalum maintains stable capacitance across the operating range. Tantalum also provides lower equivalent series resistance (ESR), enabling faster transient response in power supply filtering applications. However, tantalum capacitors require strict polarity observation and voltage derating due to their electrochemical nature, whereas ceramic capacitors are non-polarized and more forgiving to voltage transients.

Can I use a 100uF 25V tantalum capacitor in a 3.3V circuit?

Yes, absolutely. In fact, using a 25V-rated capacitor in a 3.3V circuit provides excellent voltage derating margin, which extends capacitor lifespan and improves reliability. The 25V rating means the capacitor can safely handle voltages up to 25V, so operating at 3.3V is well within safe limits. This derating practice is recommended in professional electronics design, particularly for critical power supply filtering applications. The capacitance value remains stable at 3.3V operation, and the low ESR characteristics are fully preserved.

What precautions must I take to avoid tantalum capacitor failure?

The primary failure mode for tantalum capacitors is reverse polarity connection, which causes immediate internal short circuit and potential circuit damage. Always verify positive and negative lead orientation before soldering. Second, never exceed the 25V voltage rating, as overvoltage stress causes dielectric breakdown. Third, avoid rapid voltage transients exceeding 25V that might occur from inductive switching or ESD events. Fourth, ensure proper PCB layout with adequate trace width to the capacitor to prevent voltage drop that could effectively overstress the component. Finally, maintain operating temperatures within the -55°C to +125°C specification range, as extreme temperatures can affect electrolyte performance.

How do I identify the positive lead on a 2917 SMD tantalum capacitor?

The positive lead of an SMD tantalum capacitor is typically marked with a plus symbol, colored stripe, or embossed marking on the capacitor body. Some manufacturers use a polarity bar or dimple on the positive end. Always consult the component datasheet for your specific manufacturer to confirm marking conventions. During PCB assembly, the pick-and-place machine orientation must match the PCB pad layout polarity markings. If polarity is uncertain, cross-reference the part number on the capacitor body with the manufacturer's datasheet to verify lead identification before soldering.

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.

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Buy 100uF 25V 2917 SMD Tantalum Capacitor (Pack of 5) Online in India

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