Series:	KO-CAP® T540
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	150µF
Tolerance:	±20%
Voltage - Rated:	3V
Type:	Molded
ESR (Equivalent Series Resistance):	80 mOhm @ 100kHz
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	2000 Hrs @ 125°C
Mounting Type:	Surface Mount
Package / Case:	1411 (3528 Metric)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Height - Seated (Max):	0.083" (2.10mm)
Lead Spacing:	--
Manufacturer Size Code:	B
Ratings:	COTS
Features:	High Reliability

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Tantalum - Polymer Capacitors

Tantalum Polymer Capacitors are one of the most common and cost-effective easily available electric components used for a wide range of applications, from consumer electronic devices to electric appliances. Among these, T540B157M003DH8710 is a chip-type surface-mount capacitor with a wide operating temperature range from -55oC to +125oC. It’s very low height and easily mountability makes it a perfect choice for miniature electronic devices requiring high capacitance and stable operation.

Application Field

As a capacitor, T540B157M003DH8710 is primarily used in applications where high capacitance and low values of ESR (Equivalent Series Resistance) are necessary. It is ideal for power supply and filtering circuits, frequency-selective networks, pulse powering circuits, where it provides higher capacitance than tantalum capacitors of the same size, larger operating temperature range and lower ESR values. Its size and slim profile is perfect for advanced consumer electronic devices such as smartphones and tablets, medical apparatus, instruments and analytical measurement systems. It can also be used in automotive electronics and in military installations where its performance is essential.

Working Principle

T540B157M003DH8710 is based on the tantalum capacitor technology. A tantalum capacitor is an electrolytic type capacitor that uses a solid tantalum anode and a porous tantalum cathode which serves as an electrolyte for chemical storage of electrical energy. The porous anode is made of extremely fine particles of tantalum which are compressed and welded together into a tight packing. The porous material of the cathode allows electrons to move freely and store a charge on the surface of the metal.When the capacitor is charged, electrons are drawn into the anode and then store electrostatic energy. When a potential is applied, the electrons are repelled from the anode and then travel a path of low resistance through the electrolyte to the cathode, thus producing a current which in turn produces a reactance. This reactance modifies the current amount to be delivered, which depends mainly on the capacitance of the capacitor, as well as its equivalent series resistance (ESR) and equivalent parallel resistance (EPR).

Conclusion

T540B157M003DH8710 is a great choice for any application requiring strong capacitance, low ESR and a wide operating temperature range. Its low height and profile makes it perfect for small-space applications while its high capacitance makes it ideal for demanding power circuits. Its robust construction and reliable performance make it well suited for automotive, military and medical applications where accuracy, reliability and efficiency are essential.

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