BB814E6327GR2HTSA1

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance @ Vr, F:	22.7pF @ 8V, 1MHz
Capacitance Ratio:	2.25
Capacitance Ratio Condition:	C2/C8
Voltage - Peak Reverse (Max):	18V
Diode Type:	1 Pair Common Cathode
Q @ Vr, F:	200 @ 2V, 100 MHz
Operating Temperature:	-55°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	PG-SOT23-3
Base Part Number:	BB814

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

Variable Capacitance (Varicaps, Varactors): BB814E6327GR2HTSA1 Application Field and Working Principle

Introduction

Variable capacitance, also known as varicaps, varactors, and tuning diodes, are specialized diodes designed specifically to produce a variable capacitance in response to a reverse bias voltage applied across the diode. It is important to understand the application field and working principle of a variable capacitance diode, such as the BB814E6327GR2HTSA1, in order to keep our circuits running optimally.

Application Field

Varicap diodes in general, and the BB814E6327GR2HTSA1 specifically, are used in a variety of applications which require a tunable, adjustable or ever-changing capacitance value when exposed to a reverse bias voltage. Generally, varicap diodes are found in many types of transmitters and receivers in radio frequency applications. Most commonly, the BB814E6327GR2HTSA1 can be used as an oscillator or an amplifier in radio-frequency systems. Varicaps also find applications in television design, and in the tuning of television receivers, especially those that have a limited range of frequencies. Additionally, this diode is popularly used in modern-day personal computers, where electronic circuits need to be optimized with a varying capacitance.

Working Principle

The BB814E6327GR2HTSA1 is formed from a junction of P-type and N-type semiconductor materials, in a similar fashion to that of other diodes. This junction is specially designed so that its capacitance value is adjustable based on the magnitude of the reverse bias voltage applied across it. When a potential difference is applied across the diode in reverse bias, or in other words, when a voltage of polarity opposite to the diode\'s junction is applied, it causes an electric field, which creates a capacitance effect between two conductive plates of the diode\'s junction. The resulting capacitance is proportional to the magnitude of reverse bias voltage applied, thereby allowing for a variable capacitance. As the magnitude of applied voltage increases, the capacitance of the diode increases as well, as opposed to a normal diode which has a constant capacitance. Not only can the BB814E6327GR2HTSA1 be used to create a variable capacitance, but also to create a frequency-dependent capacitance, which makes this diode very useful in frequency tuning applications. This is because the reverse bias voltage can be modulated, thus enabling the diode\'s capacitance to be changed and then adjusted with frequency.

Conclusion

The BB814E6327GR2HTSA1 is a varicap diode specially designed to produce a variable capacitance in response to an externally applied reverse bias voltage. Its application field includes radio frequency transmitters, as well as receivers, oscillators, and amplifiers. Its working principle relies on an electric field created by the reverse bias voltage, which causes a capacitance effect between two plates. Variation in the magnitude of reverse bias voltage adjusts the amount of capacitance displayed by the diode, making this type of diode particularly useful in frequency tuning applications.

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

Part Number	Manufacturer	Price	Quantity	Description