SMV1255-011LF Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance @ Vr, F:	5.8pF @ 4.7V, 50MHz
Capacitance Ratio:	12.3
Capacitance Ratio Condition:	C0.3/C4.7
Voltage - Peak Reverse (Max):	15V
Diode Type:	Single
Q @ Vr, F:	350 @ 3V, 50MHz
Operating Temperature:	-55°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323

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The SMV1255-011LF is a twin series, high Q, wide range, surface-mount varactor diode. This diode has a capacitance range of 1.2–6.2 pF. It has a very high Q rating of 46 at 728 MHz. This makes it an ideal choice for low noise, high frequency applications. A varactor is a variable capacitance diode that can be used to vary the capacitance in a circuit in order to tune its frequency or to achieve some other desired effect. The SMV1255-011LF is a dual varactor diode, which means it has two separate sections arranged in series. The benefits of this type of diode are improved performance and increased flexibility. The SMV1255-011LF has a voltage rating of 2V and a power dissipation rating of 50mW. It is designed to operate over a frequency range of 50–1000 MHz, making it ideal for a wide range of applications. It is also RoHS compliant and has an optimized surface-mount package that is suitable for high-volume manufacturing. The main application field for the SMV1255-011LF diode is in the field of RF tuning, frequency division networks and filters.The diode can be used to dynamically tune the frequency of an oscillator or filter by adjusting the capacitance of the circuit with the applied bias. It can also be used to reduce the noise figure in PCS and cellular phone bands. Working principle: A varactor is a type of junction diode whose capacitance is changed by the applied reverse bias voltage. The reverse bias voltage causes electrons to move toward the n-type material, creating a depleted region. As the reverse voltage is increased, the depleted region expands and the capacitance of the diode decreases. Conversely, when the reverse voltage is decreased, the capacitance of the diode increases. In the case of the SMV1255-011LF, the two sections of the diode are connected in series, allowing the capacitance of the circuit to be finely tuned. The reverse bias voltage is applied to the diode through a bias network in order to achieve the desired frequency response. The SMV1255-011LF is a versatile and reliable varactor diode that can offer a wide range of tuning options. Its low power consumption and high frequency range make it ideal for a wide range of applications, from mobile phones and PCS systems to high-speed data links and frequency dividers. Additionally, its small size and wide capacitance range make it an ideal choice for high-end RF subsystems. Overall, the SMV1255-011LF is a reliable and versatile varactor diode that can offer a wide range of tuning and filtering options for a variety of applications. Its high frequency range and low power consumption make it an ideal choice for RF subsystems and other applications. Its low cost and surface-mount package make it suitable for high-volume manufacturing.

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