FMMV105GTA

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance @ Vr, F:	2.8pF @ 25V, 1MHz
Capacitance Ratio:	6
Capacitance Ratio Condition:	C3/C25
Voltage - Peak Reverse (Max):	30V
Diode Type:	Single
Q @ Vr, F:	350 @ 3V, 50MHz
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	FMMV105G

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Variable Capacitance Diodes – FMMV105GTA

Variable capacitance diodes, known as varicaps or varactors, are semiconductor diodes which display a variable capacitance when a dynamic voltage is applied. This means that the diode’s capacitance can be adjusted under an external signal. Such diodes are mainly utilised for frequency tuning in radio receivers and television sets. Other possible applications of varicaps include low and high pass-filtering and calulation and oscillator circuits, among many others.The FMMV105GTA varicap, produced by the Fairchild Semiconductor Corporation, is based on a planar technology. This planar design possesses unique features that make it well-suited to many variable capacitance applications, including maximum DC resistance, low capacitance and low leakage current. The FMMV105GTA is capable of exhibiting capacitances in the range of 25 to 5.4pf with a voltage range of -20V to +20V, providing the widest range of varicap parameters available and allowing for a high level of accuracy and precision in variable capacitance applications. This varicap is built to operate in temperatures ranging from -55°C to +150°C and is made up of an N-type silicon chip with a low capacitance region surrounded by a high capacitance region, mounted in a JEDEC EIAJ-SC-81 compliant package. The capability that this unique design provides is a sharp turn-on point after the threshold voltage is attained, enabling quick and accurate capacitance switching The working principle behind the FMMV105GTA is relatively simple. When reverse-biased, the majority of the current flowing through the diode is blocked, and the capacitance of the device increases. Conversely, when forward-biasing is applied to the diode, the majority of current is allowed to flow, and the capacitance of the diode decreases. The capacitance also varies depending on the magnitude of the voltage applied to the diode. The FMMV105GTA provides numerous advantages in the field of variable capacitance diodes including extremely low leakage current, a high level of accuracy and precision, reliability and dependability, versatility, and wide ranging DC resistance and capacitance. Thus, this diode is an excellent choice for use in various capacitor equipment and applications, including automotive, cell phone, and laptop computers, among many others. In conclusion, the FMMV105GTA varicap is a type of semiconductor diode which enables a variable capacitance under external signals. This varicap is made up of a low capacitance region and a high capacitance region, and its capacitance fluctuates depending on the magnitude of the voltage applied. This diode offers very low leakage current, high accuracy and precision, good reliability and dependability, versatility, and wide DC resistance and capacitance, making it perfect for a variety of capacitor equipment and devices.

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