Silicon hyperabrupt junction varactor SKYWORKS SMV1129-079LF ideal for low phase noise VCO tuning circuits

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Product Description

Product Overview

The Skyworks SMV1129-079LF is a silicon hyperabrupt junction varactor designed for low phase noise voltage-controlled oscillators (VCOs) and high-Q tuning elements in wireless system local oscillators (LOs). Its low series resistance is ideal for tunable high-Q resonant circuits operating at frequencies beyond 2.5 GHz, making it suitable for applications requiring low phase noise and efficient tuning.

Product Attributes

Brand: Skyworks Solutions, Inc.
Product Line: Skyworks Green
Compliance: Halogen-free, RoHS-compliant
Packaging: MSL1, 260 C per JEDEC J-STD-020
Package Type: Single SC-79

Technical Specifications

Parameter	Symbol	Minimum	Typical	Maximum	Units	Notes
Absolute Maximum Ratings
Reverse voltage (IR = 10 A)	VR			12	V	Exposure to maximum rating conditions for extended periods may reduce device reliability.
Reverse current (VR = 10 V)	IR			20	nA
Power dissipation	PDIS			250	mW
Forward current	IF			20	mA
Operating temperature	TOP	-55		+125	C
Storage temperature	TSTG	-55		+150	C
Electrostatic discharge: Human Body Model (HBM), Class 0	ESD		< 250		V	This device must be protected at all times from ESD.
Electrical Specifications (TOP = 25 C, Unless Otherwise Noted)
Capacitance @ 1 V	CT @ 1 V	17.5	19.0	20.5	pF
Capacitance Ratio (CT @ 1 V / CT @ 3 V)		1.40	1.53
Capacitance Ratio (CT @ 1 V / CT @ 6 V)		2.0	2.5
Series Resistance @ 1 V, 500 MHz	RS @ 1 V, 500 MHz		0.4
Capacitance vs Reverse Voltage
VR (V)	CT (pF)
0	27.5
1	18.9
2	15.0
3	12.5
4	10.7
5	9.3
6	8.1
7	7.1
8	6.3
9	5.7
10	5.2
11	4.9
12	4.7
SPICE Model Parameters
Part Number	CJO (pF)	VJ (V)	M	CP (pF)	RS ()	Note
SMV1129-079LF	27.30	2.38	0.98	0	0.4	Values extracted from measured performance.
Package Dimensions (SC-79)
Dimension	Min.	Max.	Units
Length	1.50	1.70	mm
Width	1.10	1.30	mm
Height	0.70	0.90	mm
Lead Pitch	0.07	0.20	mm
Lead Width	0.25	0.35	mm
Lead Length	0.50	0.70	mm
Tape and Reel Dimensions (SC-79)
Item	Dimension	Tolerance	Units
Reel Diameter	177.8	2.5	mm	(7 inches)
Tape Width	8.00	0.10	mm
Pocket Pitch	4.00	0.10	mm
Pocket Depth	1.30	0.05	mm
Carrier Width	5.50	0.10	mm
Cover Tape Width	5.40		mm
Pocket Width	1.75	0.10	mm
Pocket Height	0.73	0.05	mm
Hole Diameter	1.50	0.10	mm
Hole Pitch	2.00	0.05	mm
Spool Hub Diameter	50.00	0.05	mm	(2 inches)
Quantity per Reel	3000		pcs