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Low series resistance varactor diode SKYWORKS SMV1234-040LF designed for high Q resonators in wireless systems

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Low series resistance varactor diode SKYWORKS SMV1234-040LF designed for high Q resonators in wireless systems

Capacitance Ratio : 3.4@C1V/C6V

Diode Configuration : Independent

DC Reverse Voltage(Vr) : 15V

Diode Capacitance : -

Description : 3.4@C1V/C6V Independent 15V 0402 Variable Capacitance (Varicaps, Varactors) RoHS

Mfr. Part # : SMV1234-040LF

Model Number : SMV1234-040LF

Package : 0402

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Skyworks SMV123x Series: Hyperabrupt Junction Tuning Varactors

Product Overview
The Skyworks SMV123x series are silicon hyperabrupt junction varactor diodes engineered for low tuning voltage Voltage Controlled Oscillators (VCOs). These varactors feature low series resistance, making them ideal for high-Q resonators in wireless system VCOs operating at frequencies exceeding 10 GHz. They are characterized for capacitance and resistance over temperature, ensuring reliable performance in demanding applications. Skyworks Green products are compliant with applicable legislation and are halogen-free.

Key Features

High capacitance ratio
Low series resistance for low phase noise
Packages rated MSL1, 260 C per JEDEC J-STD-020

Applications

Low tuning voltage VCOs
High-Q resonators in wireless system VCOs
High-volume commercial systems

Product Attributes

Brand: Skyworks Solutions, Inc.
Product Line: SMV123x Series
Compliance: Skyworks Green (Halogen-free, RoHS-compliant)

Technical Specifications

Parameter	Symbol	Minimum	Maximum	Units	Notes
Reverse voltage	VR		15	V	Absolute Maximum Rating
Forward current	IF		20	mA	Absolute Maximum Rating
Power dissipation	PDIS		250	mW	Absolute Maximum Rating
Operating temperature	TOP	-55	+125	C	Absolute Maximum Rating
Storage temperature	TSTG	-55	+150	C	Absolute Maximum Rating
Electrostatic discharge (HBM, Class 1B)	ESD		1000	V	Absolute Maximum Rating
Moisture Sensitivity Level	MSL	1			at 260 C

Electrical Specifications (TOP = 25 C)

Part Number	CT @ 1 V (pF)	CT @ 3 V (pF)	CT @ 6 V (pF)	CT @ 1 V / CT @ 3 V (Ratio)	CT @ 1 V / CT @ 6 V (Ratio)	RS @ 3 V, 500 MHz ()
	Min	Max	Min	Max	Min	Max	Typ
SMV1231	1.43	1.72	0.97	0.61	1.5	1.8	2.5	2.90
SMV1232	2.34	2.86	1.50	0.94	1.5	1.9	2.6	1.50
SMV1233	3.00	3.60	1.80	1.10	1.5	1.9	2.6	1.20
SMV1234	5.85	7.15	3.60	2.00	1.6	2.0	2.8	0.80
SMV1235	10.35	12.65	6.40	3.60	1.6	2.0	2.9	0.60
SMV1236	15.50	18.50	9.20	5.30	1.6	2.0	3.0	0.50
SMV1237	45.00	54.00	26.90	14.40	1.6	2.0	3.0	0.40

Available Packages and Markings

Package Type	Marking	Series Inductance (LS)
SC-79	Cathode and HF (SMV1231-079LF)	0.7 nH
SC-79	Cathode and HG (SMV1232-079LF)	1.5 nH
SC-79	Cathode and HK (SMV1233-079LF)	1.5 nH
SC-79	Cathode and HS (SMV1234-079LF)	1.4 nH
SC-79	Cathode and HX (SMV1235-079LF)	0.45 nH
SC-79	Cathode and HY (SMV1236-079LF)
SOD-323 Green	KA3 (SMV1231-074LF)
SOD-323 Green	DQ (SMV1234-011LF)
SOD-323 Green	EQ (SMV1236-011LF)
SOT-23 Green	A (SMV1231-040LF)
SOT-23 Green	Y (SMV1232-040LF)
SOT-23 Green	B (SMV1233-040LF)
SOT-23 Green	G (SMV1234-040LF)
SOT-23 Green	R (SMV1236-040LF)
SC-70
SOD-882 Green	DT1 (SMV1237-001LF)

Note: The Pb-free symbol or LF in the part number denotes a lead-free, RoHS-compliant package unless otherwise noted as Green.

2411220421_SKYWORKS-SMV1234-040LF_C17382353.pdf

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