BB555H7912XTSA1

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance @ Vr, F:	2.3pF @ 28V, 1MHz
Capacitance Ratio:	9.8
Capacitance Ratio Condition:	C1/C28
Voltage - Peak Reverse (Max):	30V
Diode Type:	Single
Q @ Vr, F:	--
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SC-80
Supplier Device Package:	PG-SCD80-2
Base Part Number:	BB555

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Introduction of BB555H7912XTSA1


BB555H7912XTSA1 is a variable capacitance diode manufactured by Sumitomo Electric and sold under the product name BB555H7912XTSA1. The diode is a surface-mounted device (SMD) housed in a 8-pin plastic package, and is defined as a discrete component rather than a complete IC. As a varicap, this capacitance diode can serve a wide range of applications, from voltage-controlled oscillators (VCOs) to frequency multipliers, RF helpers, and more.

BB555H7912XTSA1 Application Field and Working Principle

BB555H7912XTSA1 is a wide-ranging varicap diode, so it can be used in a number of application fields. A varicap is a type of diode whose capacitance is adjustable as a function of the reverse bias voltage applied across it – this phenomenon is a result of the contact of the diode to an acoustic surface wave (ASW) that causes the varicap to transmit high frequency signals more effectively. As a result, BB555H7912XTSA1 is often used in high-frequency radio frequency (RF) applications, such as voltage-controlled oscillators (VCO), frequency multipliers, RF helpers, and more.In RF applications, BB555H7912XTSA1 is used to modulate the output frequency of an oscillator. When the bias voltage is applied, the varicap changes its capacitance, which in turn changes the frequency of the oscillator. This is the principle of voltage-controlled oscillation (VCO) and is widely used in communication systems.In addition to VCO\'s, BB555H7912XTSA1 is also used for frequency multipliers. The varicap can be placed as part of a feedback loop, in which the D.C. bias causes the frequency of the oscillator to vary in order to produce a higher frequency output. This is achieved by using the D.C. bias to modulate the capacitance of the varicap in order to achieve the desired frequency multiplication.Finally, BB555H7912XTSA1 can also be used as an RF helper. Since the reverse bias voltage applied to the diode alters the capacitance, it can be used to “tune” an antenna, amplifier, or other circuit in order to optimize its performance in an RF system.

Conclusion

BB555H7912XTSA1 is a variable capacitance diode manufactured by Sumitomo Electric and sold under the product name BB555H7912XTSA1. It is a discrete component and is classified as a varicap diode. It has a wide range of applications in RF applications, such as voltage-controlled oscillators (VCO), frequency multipliers, RF helpers, and more. By modulating the D.C. bias, the capacitance of the varicap can be altered to achieve the desired result. 
The BB555H7912XTSA1 is thus a powerful choice for various high-frequency RF applications, from general-purpose voltage-controlled oscillators to frequency multipliers and RF helpers.

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