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FM Radio Tuner Diode Infineon BB 844 E6327 with Extended Frequency Range and Pb Free RoHS Compliance

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FM Radio Tuner Diode Infineon BB 844 E6327 with Extended Frequency Range and Pb Free RoHS Compliance

Capacitance Ratio : 3.8@C2V/C8V

Diode Configuration : 1 Pair Common Cathode

DC Reverse Voltage(Vr) : 18V

Series Resistance (Rs) : 280mΩ

Diode Capacitance : 11.5pF@8V,1MHz

Description : 3.8@C2V/C8V 1 Pair Common Cathode 18V 280mΩ 11.5pF@8V,1MHz SOT-23 Variable Capacitance (Varicaps, Varactors) RoHS

Mfr. Part # : BB 844 E6327

Model Number : BB 844 E6327

Package : SOT-23

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Product Overview

The BB844 is a Silicon Variable Capacitance Diode designed for FM radio tuners with an extended frequency band of 77MHz to 108MHz. It is engineered for applications requiring a back-to-back diode configuration to optimize signal distortion and detuning. This diode offers a high tuning ratio at low supply voltages, making it suitable for car radio applications. Featuring a monolithic chip with a common cathode for perfect dual diode tracking, it also boasts good C-V linearity and a high figure of merit. The BB844 is available in a Pb-free (RoHS compliant) SOT23 package.

Product Attributes

Brand: Infineon Technologies
Type: Silicon Variable Capacitance Diode
Package: SOT23
Configuration: Common cathode
Compliance: Pb-free (RoHS compliant)

Technical Specifications

Parameter	Symbol	Value	Unit	Notes
Inductance (LS)	LS	1.8	nH
Marking		SNs
Maximum Ratings at TA = 25C, unless otherwise specified
Diode reverse voltage	VR	18	V
Peak reverse voltage	VRM	20	V
Forward current	IF	50	mA
Operating temperature range	Top	-55 ... 150	C
Storage temperature	Tstg	-55 ... 150	C
Electrical Characteristics at TA = 25C, unless otherwise specified
DC Characteristics
Reverse current (VR = 16 V)	IR	-	20	nA
Reverse current (VR = 16 V, TA = 85 C)	IR	-	200	nA
AC Characteristics
Diode capacitance (VR = 2 V, f = 1 MHz)	CT	42.5	pF
Diode capacitance (VR = 4 V, f = 1 MHz)	CT	25	pF
Diode capacitance (VR = 8 V, f = 1 MHz)	CT	10	pF
Capacitance ratio (VR = 2 V, VR = 8 V, f = 1 MHz)	CT2/CT8	3.2
Capacitance matching (VR = 2 V to 8 V, f = 1 MHz)	CT/CT	-	1.5	%
Series resistance (VR = 2 V, f = 100 MHz)	rS	-	0.28

2410121849_Infineon-BB-844-E6327_C533695.pdf

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