25TQC15MV Capacitors

Operating Temperature:	-55°C ~ 105°C
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	D2
Lead Spacing:	--
Height - Seated (Max):	0.079" (2.00mm)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Package / Case:	2917 (7343 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	2000 Hrs @ 105°C
Series:	POSCAP™ TQC
ESR (Equivalent Series Resistance):	45 mOhm
Type:	Molded
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	15µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

Tantalum – Polymer Capacitors are a type of highly reliable surface mount capacitors. This capacitor technology consists of two electrodes and polymer electrolyte, and offers higher rated voltage compared to standard electrolytic capacitors for the same size. This is the key factor that makes this technology more suitable as an alternative in designs requiring higher voltage/current handling without a considerable increase in size. This technical paper analysis the application field and working principle of 25TQC15MV type of tantalum – polymer capacitors.

Application Field

The 25TQC15MV type of tantalum – polymer capacitors are mainly used in applications that require single-ended or differential filter designs and higher voltage levels. The 25TQC15MV tantalum – polymer capacitors are ideal for high – frequency AC and DC decoupling, RC snubbing, powerline filters, etc. due to its high capacitance, very low ESR, high ripple current capability and high voltage rating of 15V, which makes it suitable for extremely wide range of application. Additionally, the 25TQC15MV type of tantalum – polymer capacitors features a positive safety factor, gold – plated pins for the lead frames, and an industry-leading level of reliability.

Working Principle

The 25TQC15MV type of tantalum – polymer capacitors are a type of polar capacitors constructed from two solid top electrodes of tantalum powder and and bottom electrodes of aluminum, along with a sandwiched polymer layer and electrolyte between them. The electrolyte enables ionic conduction, which effectively insulates the system from electrical shock and has superior heat resistance. The capacitor is charged using the top electrodes; after charging, a voltage is applied to the terminals and the capacitor maintains the charge. The output voltage is determined by the amount of electrical charge stored and the amount of current entering or exiting the capacitor.The polymer layer helps to maintain the dielectric strength and helps to reduce the losses due to parasitic capacitances that would cause the electrical charge to dissipate in other types of capacitors. The fact that it has a high dielectric strength also allows it to handle relatively high voltages. Moreover, the polymer layer also provides superior frequency and heat stability with highly low ESR, which makes the circuit more reliable and effective.

Conclusion

The 25TQC15MV type of Tantalum – Polymer capacitors are highly reliable capacitors suitable for various applications, specially when higher voltages, high ripple current ratings and superior frequency and temperature stability are required. The combination of the two solid top electrodes of tantalum powder and and bottom electrodes of aluminum with a sandwiched polymer layer and electrolyte makes the output voltage determined by the amount of electrical charge stored and the amount of current entering or exiting the capacitor. The solution also offers positive safety factor, gold – plated pins for the lead frames, and an industry-leading level of reliability.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description