LQM18FN4R7M00# [MURATA]

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型号：	LQM18FN4R7M00#
厂家：	muRata
描述：
文件：	总8页 (文件大小：146K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Reference Only

Spec No. JELF243B-0012L-01

P.1/8

CHIP COIL (CHIP INDUCTORS) LQM18FN□□□□00D REFERENCE SPECIFICATION

1. Scope

This reference specification applies to LQM18FN_00 series, Chip Coil (Chip Inductors).

2. Part Numbering

(ex)

1R0

Product ID Structure Dimension Applications Category Inductance Tolerance Features Electrode Packaging

(L×W) and

Characteristics

D: Taping

*B: BULK

*B: Bulk packing also available

3. Rating

・Operating Temperature Range

・Storage Temperature Range

–55°C to + 125°C

Self

Resonant

Frequency

Customer

Part Number

MURATA

Part Number

Resistance

Rated

Current

Inductance

(μH)

Tolerance

(Ω)

(MHz min.)

(mA)

LQM18FN1R0M00D

LQM18FN2R2M00D

LQM18FN4R7M00D

LQM18FN100M00D

0.20±30%

0.40±30%

0.60±30%

0.90±30%

1.0

2.2

4.7

120

150

120

±20%

4. Appearance and Dimensions

Ferrite

Electrode

0.3±0.2

0.8±0.1

■Unit Mass (Typical value)

0.005g

(in mm)

1.6±0.1

0.8±0.1

5. Testing Conditions

《Unless otherwise specified》

《In case of doubt》

Temperature : Ordinary Temperature / 15°C to 35°C

Humidity : Ordinary Humidity / 25%(RH) to 85%(RH)

Temperature : 20°C ± 2°C

Humidity

: 60%(RH) to 70%(RH)

Atmospheric Pressure : 86kPa to 106kPa

MURATA MFG.CO., LTD

Reference Only

Spec No. JELF243B-0012L-01

P.2/8

6. Electrical Performance

No.

Item

Specification

Inductance shall meet item 3.

Test Method

Measuring Equipment:

6.1 Inductance

KEYSIGHT 4294A or equivalent (1mA)

Measuring Frequency: 1MHz

6.2 DC Resistance

DC Resistance shall meet item 3.

Measuring Equipment: Digital multi meter

Digital multi meter

(TR6846 or equivalent)

terminal1

terminal2

DC resistance shall be measured after

putting chip coil between the terminal 2

under the condition of opening between

a and b.

Every measurement the terminal 1 shall

be shorted between a and b when

changing chip coil.

Measuring Equipment:

6.3 Self Resonant

Frequency (S.R.F)

6.4 Rated Current

S.R.F shall meet item 3.

KEYSIGHT 4294A or equivalent

Self temperature rise shall be limited

to 25°C max.

The rated current is applied.

Inductance Change: within ±50%

7. Mechanical Performance

No.

Item

Specification

Chip coil shall not be damaged after

tested as follows.

Test Method

7.1 Shear Test

Applied Direction

Chip Coil

Substrate

Force: 10N

Hold Duration: 5s±1s

Applied Direction: Parallel to PCB

7.2 Bending Test

Substrate: Glass-epoxy substrate

(100mm×40mm×1.6mm)

Pressure jig

R340

Deflection

Product

(in mm)

Speed of Applying Force: 1mm / s

Deflection: 2mm

Hold Duration: 30s

7.3 Vibration

Oscillation Frequency:

10Hz to 55Hz to 10Hz for 1 min

Total Amplitude: 1.5mm

Testing Time:

A period of 2h in each of 3 mutually

perpendicular directions.

MURATA MFG.CO., LTD

Reference Only

Spec No. JELF243B-0012L-01

P.3/8

No.

Item

Specification

The wetting area of the electrode

shall be at least 90% covered with

new solder coating.

Test Method

7.4 Solderability

Flux: Ethanol solution of rosin 25(wt)%

(Immersed for 5s to 10s)

Solder: Sn-3.0Ag-0.5Cu

Pre-Heating: 150°C±10°C / 60s to 90s

Solder Temperature: 240°C±5°C

Immersion Time: 3s±1s

Flux: Ethanol solution of rosin 25(wt)%

(Immersed for 5s to 10s)

7.5 Resistance to

Soldering Heat

Appearance: No damage

Inductance Change: within ±20%

Solder: Sn-3.0Ag-0.5Cu

Pre-Heating: 150°C±10°C / 60s to 90s

Solder Temperature: 270°C±5°C

Immersion Time: 10s±1s

Then measured after exposure in the room

condition for 24h±2h.

8. Environmental Performance

It shall be soldered on the substrate.

No.

Item

Specification

Appearance: No damage

Test Method

Temperature: 125°C±2°C

8.1 Heat Resistance

Inductance Change: within ±20%

Time: 1000h (+48h, -0h)

Then measured after exposure in the room

condition for 48h±2h.

8.2 Humidity

Temperature: 40°C±2°C

Humidity: 90%(RH) to 95%(RH)

Time: 1000h (+48h, -0h)

Then measured after exposure in the room

condition for 48h±2h.

8.3 Temperature

Appearance: No damage

1 cycle:

Cycle Inductance Change: within ±30%

1 step: -55°C±2°C / 30 min±3 min

2 step: Ordinary temp. / 10 min to 15 min

3 step: +125°C±2°C / 30 min±3 min

4 step: Ordinary temp. / 10 min to15 min

Total of 10 cycles

Then measured after exposure in the room

condition for 48h±2h.

9. Specification of Packaging

9.1 Appearance and Dimensions of paper tape (8mm-wide)

2.0±0.05

0.1

φ1.5±

4.0±0.1 4.0±0.1

Direction of feed

max

1.1

1.05±0.1

(in mm)

MURATA MFG.CO., LTD

Reference Only

Spec No. JELF243B-0012L-01

P.4/8

9.2 Specification of Taping

(1) Packing quantity (standard quantity)

4,000 pcs. / reel

(2) Packing Method

Products shall be packed in the cavity of the base tape and sealed by top tape and bottom tape.

(3) Sprocket hole

The sprocket holes are to the right as the tape is pulled toward the user.

(4) Spliced point

Base tape and Top tape has no spliced point.

(5) Missing components number

Missing components number within 0.1% of the number per reel or 1 pc., whichever is greater, and

are not continuous. The Specified quantity per reel is kept.

9.3 Pull Strength

Top tape

5N min.

Bottom tape

9.4 Peeling off force of top tape

Top tape

165 to 180 degree

Bottom tape

Speed of Peeling off

Peeling off force

300mm/ min

0.1 to 0.6N

(minimum value is typical)

Base tape

9.5 Dimensions of Leader-tape, Trailer and Reel

There shall be leader-tape ( top tape and empty tape) and trailer-tape (empty tape) as follows.

Trailer

160 min.

Leader

2.0±0.5

Label

190 min.

210 min.

Empty tape

Top tape

13.0±0.2



60⁺¹



Direction of feed

21.0±0.8



-0

9.0

13.0±1.4

180 ⁺⁰



-3

(in mm)

9.6 Marking for reel

Customer part number, MURATA part number, Inspection number (1), RoHS Marking (2),

Quantity etc ･･･

1) <Expression of Inspection No.>

□□ OOOO 

(1)

(2)

(3)

(1) Factory Code

(2) Date

First digit

: Year / Last digit of year

Second digit

Third, Fourth digit : Day

: Month / Jan. to Sep.  1 to 9, Oct. to Dec.  O, N, D

(3) Serial No.

2) <Expression of RoHS Marking>

ROHS – Y (△)

(1) (2)

(1) RoHS regulation conformity parts.

(2) MURATA classification number

MURATA MFG.CO., LTD

Reference Only

Spec No. JELF243B-0012L-01

P.5/8

9.7 Marking for Outside package (corrugated paper box)

Customer name, Purchasing order number, Customer part number, MURATA part number,

RoHS Marking (2), Quantity, etc ･･･

9.8. Specification of Outer Case

Outer Case Dimensions

Standard Reel Quantity

in Outer Case (Reel)

(mm)

Label

186



Above Outer Case size is typical. It depends on a quantity of an order.

10. ！ Caution

Limitation of Applications

Please contact us before using our products for the applications listed below which require especially

high reliability for the prevention of defects which might directly cause damage to the third party's life,

body or property.

(1) Aircraft equipment

(2) Aerospace equipment

(3) Undersea equipment

(6) Transportation equipment (vehicles, trains, ships, etc.)

(7) Traffic signal equipment

(8) Disaster prevention / crime prevention equipment

(4) Power plant control equipment (9) Data-processing equipment

(5) Medical equipment

(10) Applications of similar complexity and /or reliability

requirements to the applications listed in the above

11. Notice

This product is designed for solder mounting.

Please consult us in advance for applying other mounting method such as conductive adhesive.

11.1 Land pattern designing

Chip Coil

Land

Solder Resist

Soldering

Flow

Refｌow

0.8

0.7

2.5

2.0

0.7

(in mm)

11.2 Flux, Solder

・Use rosin-based flux.

Don’t use highly acidic flux with halide content exceeding 0.2(wt) % (chlorine conversion value).

Don’t use water-soluble flux.

・Use Sn-3.0Ag-0.5Cu solder.

・Standard thickness of solder paste: 100μm to 150μm.

11.3 Flow soldering / Reflow soldering conditions

・Pre-heating should be in such a way that the temperature difference between solder and product

surface is limited to 150°C max. Cooling into solvent after soldering also should be in such a way that

the temperature difference is limited to 100°C max.

Insufficient pre-heating may cause cracks on the product, resulting in the deterioration of products

quality.

・Standard soldering profile and the limit soldering profile is as follows.

The excessive limit soldering conditions may cause leaching of the electrode and/or resulting in the

deterioration of product quality.

MURATA MFG.CO., LTD

Reference Only

Spec No. JELF243B-0012L-01

Soldering profile

P.6/8

(1) Flow soldering profile

Temp.

(℃)

265℃±3℃

250℃

Limit Profile

150

Heating Time

Standard Profile

60s min.

Time.(s)

Standard Profile

150℃, 60s min.

Limit Profile

Pre-heating

Heating

Cycle of flow

250℃, 4s～6s

2 times

265℃±3℃, 5s

2 times

(2) Reflow soldering profile

Temp.

260℃

230℃

Limit Profile

(℃)

245℃±3℃

220℃

180

150

Standard Profile

30s～60s

60s max.

90s±30s

Time.(s)

Standard Profile

Limit Profile

Pre-heating

150°C～180°C, 90s±30s

Heating

Peak temperature

Cycle of reflow

above 220°C, 30s～60s

above 230°C, 60s max.

260°C, 10s

245°C±3°C

2 times

11.4 Reworking with soldering iron

The following conditions must be strictly followed when using a soldering iron.

Pre-heating

150°C,1 min

350°C max.

80W max.

φ3mm max.

3(+1, -0)s

2 times

Tip temperature

Soldering iron output

Tip diameter

Soldering time

Time

Note : Do not directly touch the products with the tip of the soldering iron in order to prevent the crack on

the products due to the thermal shock.

11.5 Solder Volume

・Solder shall be used not to be exceeded the upper limits as shown below.

・Accordingly increasing the solder volume, the mechanical stress to Chip is also increased.

Exceeding solder volume may cause the failure of mechanical or electrical performance.

Upper Limit

1/3T≦t≦T

Recommendable

T： thickness of product

MURATA MFG.CO., LTD

Reference Only

Spec No. JELF243B-0012L-01

P.7/8

11.6 Product’s location

The following shall be considered when designing and laying out P.C.B.'s.

(1) P.C.B. shall be designed so that products are not subject to the mechanical stress due to warping the board.

［Products direction］

Products shall be located in the sideways

direction (Length: a‹b) to the mechanical

stress.

Poor example

〈

〉

Good example

〈

〉

(2)Components location on P.C.B. separation.

It is effective to implement the following measures, to reduce stress in separating the board.

It is best to implement all of the following three measures; however, implement as many measures

as possible to reduce stress.

Contents of Measures

Stress Level

(1) Turn the mounting direction of the component parallel to the board separation surface.

(2) Add slits in the board separation part.

D *1

(3) Keep the mounting position of the component away from the board separation surface.

Perforation

Slit

*1 A > D is valid when stress is added vertically to the perforation as with Hand Separation.

If a Cutting Disc is used, stress will be diagonal to the PCB, therefore A > D is invalid.

(3) Mounting Components Near Screw Holes

When a component is mounted near a screw hole, it may be affected by the board deflection that occurs

during the tightening of the screw. Mount the component in a position as far away from the screw holes

as possible.

Recommended

Screw Hole

11.7 Cleaning Conditions

Products shall be cleaned on the following conditions.

(1) Cleaning temperature shall be limited to 60°C max. (40°C max for IPA)

(2) Ultrasonic cleaning shall comply with the following conditions with avoiding the resonance

phenomenon at the mounted products and P.C.B.

Power : 20 W / l max.

(3) Cleaner

Frequency : 28kHz to 40kHz

Time : 5 min max.

1. Alcohol type cleaner

Isopropyl alcohol (IPA)

2. Aqueous agent

PINE ALPHA ST-100S

MURATA MFG.CO., LTD

Reference Only

Spec No. JELF243B-0012L-01

(4) There shall be no residual flux and residual cleaner after cleaning.

P.8/8

In the case of using aqueous agent, products shall be dried completely after rinse with de-ionized

water in order to remove the cleaner.

(5) Other cleaning

Please contact us.

11.8 Resin coating

Inductance value may be changed due to the large cure-stress of the resin when products are coated with

resin. In this case, take care when you select resin to prevent the deterioration of the product quality.

11.9 Caution for use

There is possibility that the inductance value change due to magnetism. Don‘t use a magnet or a pair of

tweezers with magnetism when chip coil are handled. (The tip of the tweezers should be molded with resin

or pottery.)

11.10 Magnetic Saturation

When the excessive current over rated current is applied, the inductance value may change due to

magnetism.

11.11 Handling of a substrate

After mounting products on a substrate, do not apply any stress to the product caused by bending or

twisting to the substrate when cropping the substrate, inserting and removing a connector from the

substrate or tightening screw to the substrate.

Excessive mechanical stress may cause cracking in the product.

Bending

Twisting

11.12 Storage and Handing Requirements

(1) Storage period

Use the products within 6 months after delivered.

Solderability should be checked if this period is exceeded.

(2) Storage conditions

・Products should be stored in the warehouse on the following conditions.

Temperature ： -10°C to 40°C

Humidity

： 15% to 85% relative humidity No rapid change on temperature and humidity

Don't keep products in corrosive gases such as sulfur,chlorine gas or acid, or it may cause oxidization of

electrode, resulting in poor solderability.

・Products should be stored on the palette for the prevention of the influence from humidity, dust and so

on.

・Products should be stored in the warehouse without heat shock, vibration, direct sunlight and so on.

・Products should be stored under the airtight packaged condition.

(3) Handling Condition

Care should be taken when transporting or handling product to avoid excessive vibration or mechanical

shock.

12．

! Note

(1) Please make sure that your product has been evaluated in view of your specifications with our product

being mounted to your product.

(2) You are requested not to use our product deviating from the reference specifications.

(3) The contents of this reference specification are subject to change without advance notice.

Please approve our product specifications or transact the approval sheet for product specifications

before ordering.

MURATA MFG.CO., LTD

LQM18FN4R7M00# [MURATA]

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