Chip Inductor

Sunlord Chip inductor

Chip InductorChip Inductor

2013.42013.4


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• MPH Series• SWPA/SPH 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 TOLERANCEC ±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


Item11Multi-layer Wire Wound Film/Trimming

Ferrite Ceramic Ferrite Ceramic Ceramic

Features

Magnetically shielded / / / /

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

/ High self resonance freq. / High self resonance

freq.High self resonance freq.

General tolerance General tolerance Tight tolerance Tight tolerance Tight tolerance

/ / High rated current / /

Low cost Low cost High cost High cost High cost

Compact size Compact size / Compact size Compact size

ApplicationsComputer

peripherals, Networking devices

Wireless devices, PDA, WLAN,

Telecom

Computer peripherals, Power

supplies, Networking devices

Wireless devices, PDA, WLAN,

Telecom

PA modules, GPS, Pager, Wireless

devices

Size 0603/1005/1608/2012/3216 0603/1005/1608 1608/2012/2520/

3216/32251005/1608/2012/2520/

3216/3225/4532 0603/1005/1608

Inductance Range 47nH~47μH 0.6nH~680nH 0.047μH~471μH 0.8nH~33μH 0.1nH~100nH

Main Mfrs Murata/TDK/ T-yuden/Sunlord

Murata/TDK/T-yuden/Sunlord

Murata/ TDK/T-yuden

Murata/Coilcraft/Pulse/Sunlord

Murata/KOA /Panasonic

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


Type Structure Dimensions Inductance Range Applications

SDFL Series Multilayer Ferrite

0603(0201)~3216(1206)

47nH~47μHA/V equipment

Computer

SDWL-F/FD/FW Series

Wire Wound Ferrite

1608(0603)~3225(1210)

47nH~470μHA/V equipment

Computer

SDCL Series Multilayer Ceramic

0603(0201)~1608(0603)

0.6nH~680nHCommunication

Equipment

SDWL-C Series Wire Wound Ceramic

1005(0402)~4532(1812)

0.8nH~33μHCommunication

Equipment

HQ Series Multilayer Ceramic 1005(0402) 1.0nH~15nH

CommunicationEquipment

MCL Series Multilayer Ferrite

1608(0603)~2012(0805)

0.1μH~10μHConsumerElectronics

MPH Series Multilayer Ferrite

1608(0603)～2520(1008) 0.47μH~4.7μH

ConsumerElectronics

SWPA/SPH Series Wire Wound Ferrite 201610～8040 0.47μH~330μH

ConsumerElectronics

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/FD 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)

0603 [0201] 0.6×0.31005 [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

I ±7%K ±10%L ±15%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

② External Dimensions (L×W) (mm)

2520 [1008] 2.5×2.03225 [1210] 3.2×2.5

① Type

SDWL Wire Wound Inductor

③ Material CodeF/FD

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

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

⑥Plating

S Sn plating Five-faces Coating


① Type



1608 [0603] 2012 [0805] 2520 [1008] 3216 [1206]3225 [1210]

③ Material Code

FW


Example Nominal valueR12 120nH1R0 1.0uH100 10uH

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 D F① ② ③ ④ ⑤ ⑥ ⑦ ⑧


0603 [0201] 0.6×0.31005 [0402] 1.0×0.5 1608 [0603] 1.6×0.8

① Type

SDCL Chip Ceramic Inductor

③ Material Code

C


S ±0.3nHJ ±5%K ±10%

⑥ Packing

T Tape & Reel

⑧ HSF ProductsF


Example Nominal Value3N9 3.9nH10N 10nHR10 100nH

⑦ Internal Code

D


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

③ Material Code

C Ceramic

⑤ Inductance ToleranceB ±0.1nHC ±0.2nH S ±0.3nHD ±0.5nH G ±2%H ±3% J ±5%K ±10%

⑥FeaturesS Sn plating

Five-faces CoatingG Au plating

Five-faces Coating


Example Nominal value10N 10nHR10 100nH1R0 1.0uH


① Type



1005 [0402] 1608 [0603] 2012 [0805] 2520 [1008] 3216 [1206]3225 [1210]4532 [1812]

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.

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

SWPA/SPH 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%


Example Nominal value R10 100nH1R0 1.0μH100 10μH

⑦ PackingT Tape & Reel



MPH 201210 S 2R2 M T① ② ③ ④ ⑤ ⑥

②External Dimensions (L×W×H) (mm)

160805 1.6×0.8×0.55160809 1.6×0.8×0.95201205 2.0×1.25×0.55201206 2.0×1.25×0.6201210 2.0×1.25×1.0201214 2.0×1.25×1.45201610 2.0×1.6×1.0252010 2.5×2.0×1.0252012 2.5×2.0×1.2

① Type

MPH Multilayer PowerInductor

⑤ Inductance ToleranceM ±20%N ±30%


Example Nominal valueR47 470nH1R0 1.0uH ⑥ Packing

T Tape and Reel

③ Feature TypeS StandardU Ultra Low RdcH High Rated Current



SPH 252012 H 2R2 M T① ② ③ ④ ⑤ ⑥

②External Dimensions (L×W×H) (mm)

201610 2.0×1.6×1.0202012 2.0×2.0×1.2252010 2.5×2.0×1.0252012 2.5×2.0×1.23015 3.0×3.0×1.54012 4.0×4.0×1.24018 4.0×4.0×1.88030 8.0×8.0×3.0

① Type

SWPA Wire Wound PowerInductor

③ Feature Type

U U Type MaterialH H Type Material


M ±20%N ±30%

⑥ Packing

T Tape & Reel

④Nominal Inductance

Example Nominal value1R0 1.0uH100 10uH



SWPA 6045 S 100 M T① ② ③ ④ ⑤ ⑥

②External Dimensions (A×H) (mm)

6045 6.0×6.0×4.5

① Type

SWPA Wire Wound PowerInductor

③ Feature Type

S Standard


M ±20%N ±30%

⑥ Packing

T Tape & Reel

④Nominal Inductance

Example Nominal value1R0 1.0uH100 10uH101 100uH



Murata TDK Taiyo-yuden SunlordSDFL0603 series

/ / LK1005 series SDFL1005 series

LQM18N series MLF1608 series LK1608 series SDFL1608 series

LQM21N series MLF2012 series LK2125 series SDFL2012 series

/ / / SDFL3216 series

--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

Murata TDK Taiyo-yuden Sunlord

LQP03TN series MLG0603Q series MLG0603P series / SDCL0603Q-B01

series

LQP03TG series / / SDCL0603Q-B02 series

/ MLG0603S series HK0603 series HQQ0603 series SDCL0603Q series


TDK Taiyo-yuden Wurth Chilisin Tai-tech SUNLORD

NLV25 series LEM 2520T series / / LQN2520

seriesSDWL2520F series

NLV32 series / 744764** NL322522 series

LQN3225 series

SDWL3225F series

NLV45 series / 744766** NL453232 series

LQN4532 series

SDWL4532F series

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

Cross Part Number--Multilayer Ceramic Inductor (for High Frequency Use)Multilayer Ceramic Inductor (for High Frequency Use)

Murata TDK Taiyo-yuden SunlordLQG15H ＞10nH MLG1005 ＞10nH HK1005 series SDCL1005C series

LQG15HS ≤10nH MLG1005 ≤10nH / SDCL1005C-M01 series

LQG15HN ≤10nH MLG0603S series / SDCL1005C-M02 series

MLK1005 series / SDHL1005C series

LQG18H series MLG1608 series HK1608 series SDCL1608C series


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

Cross Part Number

Coilcraft SAGAMI Murata TOKO CEC Sunlord

0402CS series C1005 series / LLQ1005

seriesHCFT0402C series

SDWL1005C series/HQ1005 series

0603CS series C1608 series / LLQ1608

seriesCCFH0603C series SDWL1608C series

LQW**AN-00DLQW**AN-10D

SDWL****C-M01SDWL****C-M11

0805CS series C2012series

LLQ2012 series

CCFH0805C series SDWL2012C series

1008CS series C2520series / / / SDWL2520C series


TDK Taiyo-yuden Murata SUNLORD

MLZ1608A1R0 / LQM18FN1R0 MCL1608S1R0

MLZ1608A2R2 / LQM18FN2R2 MCL1608S2R2

MLZ1608M4R7 CK1608 4R7 LQM18FN4R7 MCL1608S4R7

MLZ2012A1R0 CK2125 1R0 LQM21FN1R0 MCL2012S1R0

MLZ2012A2R2 CK2125 2R2 LQM21FN2R0 MCL2012S2R2

MLZ2012M4R7 CK2125 4R7 LQM21FN4R7 MCL2012S4R7

/ CK2125 100 LQM21FN100 MCL2012S100

MLZ2012M100 CKS2125 100 LQM21FN100M70 MCL2012H100

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

Cross Part Number


-- Multilayer Chip Power InductorMultilayer Chip Power Inductor

Murata Samsung Chilisin Hitachi Metals Sunlord

LQM18PN-C0 series CIG10F series / / MPH160806S series

LQM18PN-FR series CIG10W series MPA160808T series KSLI-160809 series MPH160809S series

LQM21PN-C0 series CIG21F series MPB201205T series KSLI201205 series MPH201206S series

Cross Part Number


-- Multilayer Chip Power InductorMultilayer Chip Power Inductor

Murata Amotech Taiyo-Yuden TDK Sunlord

LQM21PN-G series APIS05G series CKP2012 series MLP2012S series MPH201210S series

LQM2MPN series / CKP2016 series MLP2016S series MPH201610S series

LQM2HPN-G0 series APIS08G series CKP2520 series MLP2520S-MT series MPH252010S series

LQM2HPN-J0 series / CKP2520V series

MLP2520S-ST series MPH252012S series

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 @1.5GHzPCS1~10nHW-CDMA1~10nHGSM/AMPS1~22nH

MatchingPDC1~22nH @800MHz1~15nH @1.5GHzPCS 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 @1.5GHzPCS1~10nHW-CDMA1~10nHGSM/AMPS1~22nH

MatchingPDC1~22nH @800MHz1~15nH @1.5GHzPCS W-CDMA1~10nH 1~10nHGSM/AMPS1~22nH

Chip Inductors Application Map for Mobile Communication (PA)


Parameters TypeParameters Requirements

Matching Resonance RF Choke

L Precision High High Low

Q Factor High High Low

RDC Low Low High

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

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