B41042A2687M

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.689" (17.50mm)
Size / Dimension:	0.394" Dia (10.00mm)
Lead Spacing:	0.197" (5.00mm)
Impedance:	300 mOhms
Ripple Current @ High Frequency:	731mA @ 100kHz
Ripple Current @ Low Frequency:	584.8mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	B41042
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	5000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	6.3V
Tolerance:	±20%
Capacitance:	680µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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1. Introduction

Aluminum Electrolytic capacitors (AECs) are one of the most commonly used type of capacitors in the electronics industry. They are also known as electrolytic capacitors, simple capacitor banks or dry electrolytic capacitors. AECs are used in a variety of applications from power supply design to audio circuits. They are capable of storing electrical charge across a large range of voltages and are especially suited for high-frequency use. In this paper, we will discuss the application field and working principle of the B41042A2687M AEC.

2. Application Field of B41042A2687M AEC

The B41042A2687M AEC is a specific series of radial type aluminum electrolytic capacitor from the EPCOS Corporation. It features a maximum energy rating of 2000 hours, maximum working voltage of 630VAC, a temperature range of -40℃ to +105℃, a maximum capacitance of 47000μF, and a ripple current of 80A. With this type of AEC, reliability and performance are ensured. B41042A2687M AECs are used in all sorts of applications, including:

• Audio Systems: These AECs are used in various types of audio systems such as multimedia systems, karaoke systems, PA systems, and more. This type of capacitor can help reduce noise and improve fidelity.
• Power Supplies: B41042A2687M AECs are commonly used in power supply design where they help stabilise the output voltage and reduce noise.
• Automotive Electronics: AECs are widely used in various automotive electronics such as Vehicle Control Units (VCU) and Electronic Engine Control (EEC).
• Telecommunications: This type of capacitor can help reduce electromagnetic interference and helps improve the performance of telecommunication systems.

3. Working Principle of B41042A2687M AEC

The B41042A2687M AEC works by using an electrochemical reaction to store charge. This type of capacitor is constructed with two layers of aluminum foil separated by an insulating dielectric material. The inner foil forms the anode while the outer foil forms the cathode. Both of the foils are immersed in an electrolytic solution that serves as the electrolyte. When a voltage is applied to the capacitor, the anode undergoes oxidation and releases ions into the electrolyte. This causes an electric field to form across the electrolyte which helps store charge. When the voltage is removed, the anode regains its oxidation and the stored charge is released.

4. Conclusion

The B41042A2687M AEC is an aluminum electrolytic capacitor with a variety of applications in audio systems, power supplies, automotive electronics, and telecommunications. It operates by using an electrochemical reaction on two metal foils immersed in an electrolytic solution. With its excellent reliability and performance, this type of capacitor has become an important component in various electronic systems.

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