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Sunlord Chip inductor

Chip InductorChip Inductor


1. Inductor Summarization and Electrical Characteristics

2. Type and Producing Process of Inductors

3. Chip Inductors of SunlordFor Low Frequency

• SDFL Series• SDWL-F/FW/FD Series

For High Frequency• SDCL Series• HQ Series• SDWL-C Series

For Choke and Power Inductor• MCL Series• MPL Series• SWPA/SWPU Series

4. Applications

Contents


History of Inductors

Leaded Inductor SMT Inductor

SMT Miniaturization


Uses of Chip Inductors

Chip Inductors For Resonant Circuit

For Impedance Matching

For Choke


Impedance Matching Circuits

Τ type network Π type network

γ

γ

sh

chZZ

ZZZ C

C

CC

12

1

211

−•=

γshZZ

Z CC 212 =

γ

γ

sh

chZZ

ZZZ C

C

CC

11

2

213

−•= 1

2

1

213

−=

γ

γ

chZZ

shZZZ

C

C

CC

γshZZZ CC 212 =

11

2

211

−=

γ

γ

chZZ

shZZZ

C

C

CC

1CZ 2CZ

1Z 3Z

2Z 3Z1Z

2CZ1CZ

2Z


Item Low Pass High Pass Band Pass Band Stop

NaturalImpedance

Cut-offFrequency

Circuit

2

1

CL

1

2

CL

1

2

2

1

CL

CL

=

nn

ffc 21)2(1 2

01−+

= ]2

1)2

([ 201

nnffc −+=

nn

ffc 21)2(1 2

02−+

= ]2

1)2

([ 202

nnffc −+=21

1CLπ 124

1CLπ

22210 2

12

1CLCL

fππ

==

2

1

4ZZx =

cff

ffc )( 0

0 ff

ffn −

1

2

1

12CC

CLn ==

)( 0

0 ff

ff

n

−

2211 CLCL =2K

cf

21 xKZCT −=

21 xKZC−

=Π

K

Π

Τ

fc

Π

Τ

K Π

Τ

fc

Π

ΤK Π

Τ

fc

Π

Τ

fc1 fc2

Π

f

KΠ

Τ

F0

Π Τ

fc1 fc2

Π

f

Τ

Resonant Circuits


For Choke

D=Ton/T

Vin

t

Time for switch on: Ton T

t

Vout

Vout/Vin=Ton/T=D


Electrical Characteristics

L: Inductance

Q: Quality Factor

SRF: Self-Resonant Frequency

DCR: DC Resistance

IDC: Rated Current


Terms and Descriptions

L (Inductance):

The property of a circuit element which tends to oppose any change in the current flowing through it. The inductance for a given inductor is influenced by the core material, core shape and size. the turns count and the shape of the coil. Inductors most often have their inductances expressed in microhenries (µH).

1 millihenry (mH) = 10-3 H1 microhenry (µH) = 10-6 H1 nanohenry (nH) = 10-9 H

Inductance Tolerance:

Standard inductance tolerances are typically designated by a tolerance letter.

LETTER TOLEANCEC ±0.2nHD ±0.5nHF ±1%G ±2%H ±3%J ±5%K ±10%S ±0.3nH



Q (Quality Factor):

The Q value of an inductor is a measure of the relative losses in an inductor. The Q is also known as the "quality factor" and is technically defined as the ratio of inductive reactance to effective resistance and is represented by:

Since XL and Re are functions of frequency, the test frequency must be given when specifying Q.XL typically increases with frequency at a faster rate than Re at lower frequencies, and vice versa at higher frequencies. This results in a bell shaped curve-for Q vs frequency.Re is mainly comprised of the DC resistance of the wire, the core losses and skin effect of the wire.Based on the above formula, it can be shown that the Q is Zero at the self resonant frequency since the inductance is Zero at this point.



SRF (Self-resonant Frequency):

The frequency at which the inductor's distributed capacitance resonates with the inductance. it is at this frequency that the inductance is equal to the capacitance and they cancel each other.The inductor will act purely resistive with a high impedance at the SRF point.The distributed capacitance is caused by the turns of wire layered on top of each other and around the core.This capacitance is in parallel to the inductance.At frequencies above the SRF, the capacitive reactance of the parallel combination will become the dominant component.Also, the Q of the inductor is equal to zero at the SRF point since the inductive reactance is zero.The SRF is specified in MHz and is listed as a minimum value on product data sheets.



DCR (DC Resistance):

The resistance of the inductor measured with direct current. The DCR is most often minimized in the design of a inductor.The unit of measure is ohms and it is usually specified as a maximum rating.

IDC (Rated Current):

The level of continuous DC current that can be passed through the inductor.This DC current level is based on a maximum temperature rise of the inductor at the maximum rated ambient temperature. The rated current is related to the inductor's ability to minimize the power losses in the winding by having a low DC resistance. It is also related to the inductor's ability to dissipate this power lost in the winding. Thus, the rated current can be increased by reducing the DC resistance or increasing the inductor size.


Contents







4. Applications


Classification of Chip Inductors Structure

Chip Inductor

Wire Wound Magnetic Core

Multilayer Magnetic Core

Wire Wound Ceramic Core

Multilayer Ceramic Core

Thin Film


Distinctions of Inductors (1)

Film/Trimming

Ferrite Ceramic Ferrite Ceramic Ceramic

Shape

InternalStructure

ItemMulti-layer Wire Wound


Murata/KOA /Panasonic

Murata/Coilcraft/Pulse/Sunlord

Murata/ TDK/T-yuden

Murata/TDK/T-yuden/Sunlord

Murata/TDK/ T-yuden/SunlordMain Mfrs

0.1nH~100nH1.0nH~470nH0.1μH~1mH1.0nH~470nH47nH~100uHInductance Range

0603/1005/16081005/1608/20122520/3225/45320603/1005/1608/20121005/1608/2012/3216Size

PA modules, GPS, Pager, Wireless

devices

Wireless devices, PDA, WLAN,

Telecom

Computer peripherals, Power

supplies, Networking devices

Wireless devices, PDA, WLAN,

Telecom

Computer peripherals,

Networking devicesApplications

Compact sizeCompact size/Compact sizeCompact size

High costHigh costHigh costLow costLow cost

//High rated current//

Tight toleranceTight toleranceTight toleranceGeneral toleranceGeneral tolerance

High self resonance freq.

High self resonance freq./High self resonance

freq./

High Q at high freq.High Q at high freq./High Q at high freq./

////Magnetically shielded

Features

CeramicCeramicFerriteCeramicFerrite

Film/TrimmingWire WoundMulti-layerItem11

Distinctions of Inductors (2)


Tape Casting Screen Printing(Inner Electrode)

Lamination Cutting

Burning Out andSintering

Termination and Plating

Sorting and Packing

Producing Process of Multilayer Chip Inductors


CoatingCoatingWire Winding

Visual Visual SelectingSelecting

Sorting and Packing

Producing Process of Wire Wound Chip Inductors


Ceramic Copper Plated Trimming/Photolithography

Termination PlatingSorting and Packing

Ceramic Core

Epoxy Coating

Producing Process of Film Chip Inductors


Contents







4. Applications


CommunicationEquipment

1.0nH~15nH1005(0402)Multilayer CeramicHQ Series

A/V equipmentComputer

10nH~1000μH2012(0805)

~4532(1812)Wire Wound

FerriteSDWL-F/FD/FW

Series

ConsumerElectronics

0.1μH~10μH1608(0603)

~2012(0805)Multilayer

FerriteMCL Series

ConsumerElectronics

0.47μH~4.7μH2012(0805)～2520(1008)

Multilayer FerriteMPL Series


1nH~33μH1005(0402)

~4532(1812)Wire Wound

CeramicSDWL-C Series

ConsumerElectronics

0.47μH~330μH252012～8040Wire Wound FerriteSWPA/SWPU Series

Multilayer Ceramic

A/V equipmentComputer

47nH~100μH1005(0402)

~3216(1206)Multilayer

FerriteSDFL Series


1nH~470nH0603(0201)

~1608(0603)SDCL Series

Structure ApplicationsInductance RangeDimensionsType

Chip Inductors of SunlordChip Inductors of Sunlord


Features and ApplicationsFeatures and Applications

For low frequency use：

Ferrite Inductors have the features of high inductance and high Q at low frequency, thus they are suitable for low frequency circuit.

SDFL Series: Multilayer type; applies to low frequency circuits such as the power line, video and audio, LCD drive, network card, etc.

SDWL-F/FW Series: Wire wound type, tight tolerance, high Q; usually used in high performance electronic devices such as video cameras, HDD, car audio equipments, etc.


Ordering Information

SDFL 1608 Q 1R0 K T F① ② ③ ④ ⑤ ⑥ ⑦

② External Dimensions (L×W) (mm)

1005 [0402] 1.0×0.51608 [0603] 1.6×0.82012 [0805] 2.0×1.253216 [1206] 3.2×1.6

① Type

SDFL Chip Ferrite Inductor

③ Material Code

L, P, Q, S, T

⑤ Inductance Tolerance

J ±5%K ±10%M ±20%

⑥ Packing

T Tape & Reel

⑦ Lead Free ProductsF

④ Nominal Inductance

Example Nominal Value47N 0.047μHR10 0.1μH1R0 1.0μH


SDWL 2520 F 1R0 J T F① ② ③ ④ ⑤ ⑥ ⑦


2520 [1008] 2.5×2.03225 [1210] 3.2×2.5 4532 [1812] 4.5×3.2

① Type

SDWL Wire Wound Inductor

③ Material CodeF

⑤ Inductance ToleranceJ ±5%K ±10%

⑥ Packing

T Tape & Reel

⑦ HSF ProductsF


Example Nominal valueR12 120nH1R0 1.0uH101 100uH



SDWL 2012 FW 1R0 J S T F① ② ③ ④ ⑤ ⑥ ⑦ ⑧

⑧ HSF Products

F

Sn plating Five-faces Coating

S

⑥Plating


① Type



2012 [0805] 2.0×1.252520 [1008] 2.5×2.0

③ Material Code

FW



⑤ Inductance ToleranceJ ±5%K ±10%M ±20%

⑦ Packing

T Tape & Reel


Feature and ApplicationsFeature and Applications

For high frequency use:Ceramic inductors have the features of high S.R.F. and high Q athigh frequency, thus they are suitable for high frequency circuit.

SDCL Series: Multilayer type, low cost; applies to high frequency circuits such as RF circuits of communication equipments.

SDWL-C Series: Wire wound type, tight tolerance, high Q and high SRF, high cost; usually used in the high performance RF circuits.

HQ Series: Multilayer inductor, the same electrical characteristics as wire wound inductors, low cost; usually used in the high performance RF circuits.



SDCL 1608 C 10N J T F① ② ③ ④ ⑤ ⑥ ⑦


0603 [0201] 0.6×0.31005 [0402] 1.0×0.5 1608 [0603] 1.6×0.82012 [0805] 2.0×1.25

① Type

SDCL Chip Ceramic Inductor

③ Material Code

C


S ±0.3nHJ ±5%K ±10%

⑥ Packing

T Tape & Reel

⑦ HSF ProductsF


Example Nominal Value3N9 3.9nH10N 10nHR10 100nH


SDWL 1608 C 10N J S T F① ② ③ ④ ⑤ ⑥ ⑦ ⑧

③ Material Code

C Ceramic

⑤ Inductance ToleranceG ±2%J ±5%K ±10%

⑥FeaturesS Sn plating

Five-faces CoatingG Au plating

Five-faces CoatingB Au plating

One-face Coating


Example Nominal value10N 10nHR10 100nH1R0 1.0uH


① Type



1005 [0805] 1.0×0.51608 [0805] 1.6×0.82012 [0805] 2.0×1.252520 [1008] 2.5×2.0

⑧ HSF ProductsF

⑦ Packing

T Tape & Reel


HQ 1005 C 10N J T① ② ③ ④ ⑤ ⑥


1005 [0402] 1.0×0.6

① Type

HQ Multilayer High QInductor

③ Material Code

C

⑤ Inductance ToleranceS ±0.3nHJ ±5%K ±10%

⑥ Packing

T Tape & Reel


Example Nominal value3N9 3.9nH10N 10nH



Feature and ApplicationsFeature and Applications

For power line:Ferrite inductors have large inductance, low RDC and high saturation current, thus can reach the large current requirement of power line.

MCL Series: Multilayer type, low RDC; usually used in choke circuits of power lines.

MPL Series: Multilayer type, low RDC, high temperature rising current, low profile; suitable for power lines of portable devices.

SDWL-FD Series: Wire wound type, non-shielded, low DCR, large current, low cost; used in large current lines.

SWPA/SWPU Series: Wire wound type, large inductance, high saturation current; widely used in power line of consumer electronics, communication equipments, etc.


MCL 1608 S 1R0 M T① ② ③ ④ ⑤ ⑥

②External Dimensions (L×W) (mm)

1608 [0603] 1.6×0.8 2012 [0805] 2.0×1.25

① Type

MCL Chip Inductor forChoke

③ Feature TypeS StandardH Ir-Improved

⑤ Inductance ToleranceM ±20%N ±30%



⑦ PackingT Tape & Reel



MPL 2012 S 2R2 M H T① ② ③ ④ ⑤ ⑥ ⑦

②External Dimensions (L×W) (mm)

2012 [0805] 2.0×1.25 2016 [0806] 2.0×1.62520 [1008] 2.5×2.0

① Type

MPL Multilayer PowerInductor

⑤ Inductance ToleranceM ±20%N ±30%



⑦ PackingT Tape and Reel

⑥ ThicknessD 0.5mmH 0.9mmW 1.1mm

③ Feature TypeS Standard



SDWL 2520 FD 1R0 M T F① ② ③ ④ ⑤ ⑥ ⑦


2520 [1008] 2.5×2.03225 [1210] 3.2×2.5 4532 [1812] 4.5×3.2

① Type


③ Material CodeFD

⑤ Inductance ToleranceK ±10%M ±20%

⑥ Packing

T Tape & Reel

⑦ HSF ProductsF


Example Nominal value

1R0 1.0uH101 100uH



SWPA 6045 S 100 M T① ② ③ ④ ⑤ ⑥

② External Dimensions (A×H) (mm)

6045 6.0×6.0×4.5

① Type

SWPA Wire Wound PowerInductor

③ Feature Type

S


M ±20%N ±30%

⑥ Packing

T Tape & Reel

④Nominal Inductance

Example Norminal value1R0 1.0uH100 10uH101 100uH



SDFL3216 series///

SDFL2012 seriesLK2125 seriesMLF2012 seriesLQM21N series

SDFL1608 seriesLK1608 seriesMLF1608 seriesLQM18N series

SDFL1005 seriesLK1005 series//

SunlordTaiyoyudenTDKMurata

SDCL0603 seriesHK0603 seriesMLG0603 series/

SDCL1608 seriesHK1608 seriesMLG1608 seriesLQG18H series

SDCL1005 seriesHK1005 seriesMLK1005 seriesLQG15H series

SunlordTaiyoyudenTDKMurata

--Multilayer Ferrite Inductor (for General Use)Multilayer Ferrite Inductor (for General Use)

--Multilayer Ceramic Inductor (for High Frequency Use)Multilayer Ceramic Inductor (for High Frequency Use)

Cross Part Number


SDWL3225F series

LQN3225 series

NL322522 series744764**/ NLV32 series

SDWL4532F series

LQN4532 series

NL453232 series744766**/NLV45 series

TDK Taiyoyuden Wurth Chilisin Tai-tech SUNLORD

NLV25 series LEM 2520T series / / LQN2520

seriesSDWL2520F series

--Wire Wound Ferrite Inductor (For Choke)Wire Wound Ferrite Inductor (For Choke)

Cross Part Number


SDWL1608C series

CCFH0603C series

LLQ1608 series

LQW18AN series

C1608 series 0603CS series

SDWL2012C series

CCFH0805C series

LLQ2012 series

LQW21Hseries

C2012series 0805CS series

SDWL2520C series///C2520

series 1008CS series

COILCRAFT SAGAMI MURATA TOKO CEC SUNLORD

0402CS series C1005 series

LQW15AN series

LLQ1005 series

HCFT0402C series

SDWL1005C series

-- Wire Wound Ceramic InductorWire Wound Ceramic Inductor (for High Frequency Use)(for High Frequency Use)

Cross Part Number


MCL1608S4R7LQM18FN4R7CK1608 4R7MLZ1608M4R7

MCL2012S1R0LQM21FN1R0CK2125 1R0MLZ2012A1R0

MCL2012S4R7LQM21FN4R7CK2125 4R7MLZ2012M4R7

MCL2012S2R2LQM21FN2R0CK2125 2R2MLZ2012A2R2

MCL1608S2R2LQM18FN2R2/MLZ1608A2R2

MCL2012S100LQM21FN100CK2125 100/

MCL2012H100LQM21FN100M70CKS2125 100MLZ2012M100

TDK Taiyo-yuden Murata SUNLORD

MLZ1608A1R0 / LQM18FN1R0 MCL1608S1R0

--Multilayer Ferrite InductorMultilayer Ferrite Inductor (For Choke)(For Choke)

Cross Part Number


-- Multilayer Chip Power InductorMultilayer Chip Power Inductor

MPL2520S4R7MHTMLP2520S4R7MTCKP2520 4R7MAPIS08G2R2MTLQM2HPN4R7MG0

MPL2520S2R2MHTMLP2520S2R2MTCKP2520 2R2MAPIS08G2R2MTLQM2HPN2R2MG0

/

LQM2HPN2R2MJ0

LQM2MPN4R7MG0

LQM2MPN2R2MG0

LQM21PN4R7MG0

LQM21PN2R2MG0

LQM21PN2R2MC0

LQM21PN1R5MC0

Murata

MPL2520S2R2MWTMLP2520S2R2STCKP2520V2R2M/

MPL2016S4R7MHT/CKP2016 4R7M/

MPL2520S4R7MWTMLP2520S4R7STCKP2520V4R7M/

MPL2012S2R2MHTMLP2012S2R2MTCKP2012 2R2MAPIS05G2R2MT

MPL2012S4R7MHTMLP2012S4R7MT/APIS05G4R7MT

MPL2016S2R2MHT/CKP2016 2R2M/

/

/

TDK

/

/

Taiyo Yuden

MPL2012S2R2MDT/

MPL2012S1R5MDT/

SUNLORDAmotech

Cross Part Number


Contents







4. Applications


Chip Inductors Application Map for Mobile Communication

Synth

VCO

AMP

LNA

Rx part

Tx part

SAW FILTER

VCO

Divider


Chip Inductors Application Map for Mobile Communication (LNA)

Matching

RF Choke

VCC

Matching Matching

RF Choke

RF ChokePDC1~22nH @800MHz1~15nH @1.8GHzPCS1~10nHW-CDMA1~10nHGSM/AMPS1~22nH

MatchingPDC1~22nH @800MHz1~15nH @1.8GHzPCS W-CDMA1~10nH 1~10nHGSM/AMPS1~22nH


Chip Inductors Application Map for Mobile Communication (VCO)

Buffer Stage

Oscillation Stage

Resonance

RF Choke Output

Vt

RF ChokeResonanceHigh QTight Tolerance

RF ChokeTo suppress RF signal from power line, inductor is inserted. More than300ohm impedance at carrier frequency and oscillation frequency Is required


SAW FilterINPUT

OUTPUT

MatchingMatching

Matching

Matching

PDC PCS33~220nH 33~100nHCDMA GSM/AMPS10~47nH 33~220nH

Chip Inductors Application Map for Mobile Communication (SAW Filter)


VGG

VDD2

RF Choke

Matching

VDD1 VDD3

VGG

Matching MatchingMatching

RF Choke RF ChokeRF ChokePDC1~22nH @800MHz1~15nH @1.8GHzPCS1~10nHW-CDMA1~10nHGSM/AMPS1~22nH

MatchingPDC1~22nH @800MHz1~15nH @1.8GHzPCS W-CDMA1~10nH 1~10nHGSM/AMPS1~22nH

Chip Inductors Application Map for Mobile Communication (PA)


Parameters Requirements

HighLowLowRDC

LowHighHighQ Factor

LowHighHighL Precision

RF ChokeResonanceMatchingParameters Type

Parameters Requirements of RF Circuits

In matching circuits, using inductors with precision inductance and high Q factor can improve the signal quality;

In resonance circuit, using inductors with precision inductance can improve resonant frequency precision, and using inductors with high Q factor can reduce the signal loss;

In RF choke circuits, inductors with low RDC is required because the large operation current exist.


Lower insertion loss and power saving will be acquired by using inductors withhigh Q factor

1.Q bias on the effect of filter

Electrical bias on the effect of filter


2.L bias on the effect of filter

Electrical bias on the effect of filter


AC/DCConverter

CPU/GPU

ASIC

IC

Memory

Oscillator

① ②

②

②

DC/DCConverter

①For Choke

Power inductors can prevent current changing rapidly by energy accumulation and liberation, thus stabilized output can be acquired.

Inductance depend on the frequency of the DC/DC Converter.

Power Inductors Applications in Power Lines

②For Noise Suppression

Power inductors can filtering the IC noise so that they can prevent crossing interference through power lines.


Thank You!

www.sunlordinc.com

chip inductor - sunlordinc.comsunlordinc.com/uploadfiles/2011/06/030903587af75464.pdf · the...

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