LQP03TQ1N6B02# [MURATA]

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LQP03TQ1N6B02#
型号: LQP03TQ1N6B02#
厂家: muRata    muRata
描述:

文件: 总12页 (文件大小:249K)
中文:  中文翻译
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Reference Only  
Spec No. JELF243C-0024B-01  
P.1/12  
CHIP COIL (CHIP INDUCTORS) LQP03TQ□□□□02D Reference Specification  
1.Scope  
This reference specification applies to LQP03TQ series, Chip coil (Chip Inductors).  
2.Part Numbering  
(ex)  
LQ  
P
03  
T
Q
0N6  
W
0
2
D
Product ID Structure Dimension Applications Category Inductance Tolerance Features  
Electrode Packaging  
D:Taping  
(L×W)  
and  
Characteristics  
*B:Bulk  
*Bulk packing also available. (A product is put in the plastic bag under the taping conditions.)  
3.Rating  
Operating Temperature.  
Storage Temperature.  
–55°C to +125°C  
–55°C to +125°C  
Self Resonant  
Frequency  
DC  
Resistance  
(Ω max)  
Rated  
Current  
(mA)  
Customer  
MURATA  
Inductance  
Q
(min)  
(MHz)  
Part Number  
Part Number  
(nH)  
0.6  
Tolerance  
Min.  
*Typ.  
LQP03TQ0N6W02D  
LQP03TQ0N6B02D  
LQP03TQ0N6C02D  
LQP03TQ0N7W02D  
LQP03TQ0N7B02D  
LQP03TQ0N7C02D  
LQP03TQ0N8W02D  
LQP03TQ0N8B02D  
LQP03TQ0N8C02D  
LQP03TQ0N9W02D  
LQP03TQ0N9B02D  
LQP03TQ0N9C02D  
LQP03TQ1N0W02D  
LQP03TQ1N0B02D  
LQP03TQ1N0C02D  
LQP03TQ1N1W02D  
LQP03TQ1N1B02D  
LQP03TQ1N1C02D  
LQP03TQ1N2W02D  
LQP03TQ1N2B02D  
LQP03TQ1N2C02D  
LQP03TQ1N3W02D  
LQP03TQ1N3B02D  
LQP03TQ1N3C02D  
LQP03TQ1N4W02D  
LQP03TQ1N4B02D  
LQP03TQ1N4C02D  
LQP03TQ1N5W02D  
LQP03TQ1N5B02D  
LQP03TQ1N5C02D  
LQP03TQ1N6B02D  
LQP03TQ1N6C02D  
LQP03TQ1N7B02D  
LQP03TQ1N7C02D  
LQP03TQ1N8B02D  
LQP03TQ1N8C02D  
LQP03TQ1N9B02D  
LQP03TQ1N9C02D  
LQP03TQ2N0B02D  
LQP03TQ2N0C02D  
LQP03TQ2N1B02D  
LQP03TQ2N1C02D  
LQP03TQ2N2B02D  
LQP03TQ2N2C02D  
20000  
18000  
0.7  
0.8  
0.9  
1.0  
1.1  
1.2  
1.3  
1.4  
1.5  
0.05  
1000  
>20000  
W:±0.05H  
B:±0.1H  
C:±0.2H  
0.08  
800  
17000  
17  
700  
16000  
15000  
19700  
0.10  
1.6  
1.7  
1.8  
1.9  
2.0  
2.1  
2.2  
19000  
17200  
16900  
16100  
16300  
14300  
13000  
650  
B:±0.1H  
C:±0.2H  
12500  
11000  
0.12  
MURATA MFG.CO.,LTD  
Reference Only  
DC  
Spec No. JELF243C-0024B-01  
P.2/12  
Rated  
Current  
(mA)  
Self Resonant  
Customer  
MURATA  
Frequency  
(MHz)  
Inductance  
Q
Resistance  
(Ω max)  
Part Number  
Part Number  
(min)  
(nH)  
Tolerance  
Min.  
*Typ.  
LQP03TQ2N3B02D  
LQP03TQ2N3C02D  
LQP03TQ2N4B02D  
LQP03TQ2N4C02D  
LQP03TQ2N5B02D  
LQP03TQ2N5C02D  
LQP03TQ2N6B02D  
LQP03TQ2N6C02D  
LQP03TQ2N7B02D  
LQP03TQ2N7C02D  
LQP03TQ2N8B02D  
LQP03TQ2N8C02D  
LQP03TQ2N9B02D  
LQP03TQ2N9C02D  
LQP03TQ3N0B02D  
LQP03TQ3N0C02D  
LQP03TQ3N1B02D  
LQP03TQ3N1C02D  
LQP03TQ3N2B02D  
LQP03TQ3N2C02D  
LQP03TQ3N3B02D  
LQP03TQ3N3C02D  
LQP03TQ3N4B02D  
LQP03TQ3N4C02D  
LQP03TQ3N5B02D  
LQP03TQ3N5C02D  
LQP03TQ3N6B02D  
LQP03TQ3N6C02D  
LQP03TQ3N7B02D  
LQP03TQ3N7C02D  
LQP03TQ3N8B02D  
LQP03TQ3N8C02D  
LQP03TQ3N9B02D  
LQP03TQ3N9C02D  
LQP03TQ4N0B02D  
LQP03TQ4N0C02D  
LQP03TQ4N1B02D  
LQP03TQ4N1C02D  
LQP03TQ4N2B02D  
LQP03TQ4N2C02D  
LQP03TQ4N3H02D  
LQP03TQ4N3J02D  
LQP03TQ4N7H02D  
LQP03TQ4N7J02D  
LQP03TQ5N1H02D  
LQP03TQ5N1J02D  
LQP03TQ5N6H02D  
LQP03TQ5N6J02D  
LQP03TQ6N2H02D  
LQP03TQ6N2J02D  
LQP03TQ6N8H02D  
LQP03TQ6N8J02D  
LQP03TQ7N5H02D  
LQP03TQ7N5J02D  
LQP03TQ8N2H02D  
LQP03TQ8N2J02D  
LQP03TQ9N1H02D  
LQP03TQ9N1J02D  
LQP03TQ10NH02D  
LQP03TQ10NJ02D  
2.3  
2.4  
2.5  
2.6  
2.7  
2.8  
2.9  
3.0  
3.1  
3.2  
3.3  
3.4  
3.5  
3.6  
3.7  
3.8  
3.9  
4.0  
4.1  
4.2  
4.3  
4.7  
5.1  
5.6  
6.2  
6.8  
7.5  
8.2  
9.1  
10  
11000  
12600  
0.15  
550  
500  
450  
12300  
12100  
12800  
12300  
12400  
12100  
11800  
11400  
11200  
10000  
0.20  
0.24  
9500  
8000  
B:±0.1H  
C:±0.2H  
10100  
9900  
9800  
9700  
0.25  
17  
400  
10500  
6500  
10100  
10000  
9900  
8800  
8400  
8800  
8300  
7900  
7600  
7100  
6600  
6300  
360  
0.35  
350  
300  
250  
0.39  
0.55  
6000  
5400  
4800  
H:±3%  
J:±5%  
0.65  
0.69  
4500  
MURATA MFG.CO.,LTD  
Reference Only  
Spec No. JELF243C-0024B-01  
P.3/12  
Rated  
Current  
(mA)  
Self Resonant  
Frequency  
(MHz)  
DC  
Resistance  
(Ω max)  
Customer  
MURATA  
Inductance  
Q
Part Number  
Part Number  
(min)  
(nH)  
Tolerance  
Min.  
*Typ.  
LQP03TQ11NH02D  
LQP03TQ11NJ02D  
LQP03TQ12NH02D  
LQP03TQ12NJ02D  
LQP03TQ13NH02D  
LQP03TQ13NJ02D  
LQP03TQ15NH02D  
LQP03TQ15NJ02D  
LQP03TQ16NH02D  
LQP03TQ16NJ02D  
LQP03TQ18NH02D  
LQP03TQ18NJ02D  
LQP03TQ20NH02D  
LQP03TQ20NJ02D  
LQP03TQ22NH02D  
LQP03TQ22NJ02D  
LQP03TQ24NH02D  
LQP03TQ24NJ02D  
LQP03TQ27NH02D  
LQP03TQ27NJ02D  
LQP03TQ30NH02D  
LQP03TQ30NJ02D  
LQP03TQ33NH02D  
LQP03TQ33NJ02D  
LQP03TQ36NH02D  
LQP03TQ36NJ02D  
LQP03TQ39NH02D  
LQP03TQ39NJ02D  
LQP03TQ43NH02D  
LQP03TQ43NJ02D  
LQP03TQ47NH02D  
LQP03TQ47NJ02D  
LQP03TQ51NH02D  
LQP03TQ51NJ02D  
LQP03TQ56NH02D  
LQP03TQ56NJ02D  
LQP03TQ62NH02D  
LQP03TQ62NJ02D  
LQP03TQ68NH02D  
LQP03TQ68NJ02D  
LQP03TQ75NH02D  
LQP03TQ75NJ02D  
LQP03TQ82NH02D  
LQP03TQ82NJ02D  
LQP03TQ91NH02D  
LQP03TQ91NJ02D  
LQP03TQR10H02D  
LQP03TQR10J02D  
LQP03TQR11H02D  
LQP03TQR11J02D  
11  
12  
13  
15  
16  
18  
20  
22  
24  
27  
30  
33  
36  
39  
43  
47  
51  
56  
62  
68  
75  
82  
91  
100  
110  
5600  
4900  
4800  
17  
0.69  
3700  
250  
0.8  
1.1  
1.2  
5100  
3500  
4800  
4500  
4100  
14  
200  
150  
3000  
2000  
1700  
1500  
1300  
1200  
1.6  
2.0  
2.5  
4.0  
6.0  
3800  
3400  
3200  
3000  
2900  
2800  
2700  
2600  
2500  
2300  
2100  
H:±3%  
J:±5%  
11  
130  
100  
80  
1100  
7.0  
2000  
9
1000  
900  
8.0  
9.0  
1800  
1700  
1600  
70  
Typical value is actual performance.  
4. Testing Conditions  
Unless otherwise specified》  
In case of doubt》  
Temperature : 20°C ± 2°C  
Humidity : 60%(RH) to 70 %(RH)  
Atmospheric Pressure : 86kPa to 106 kPa  
Temperature : Ordinary Temperature / 15°C to 35°C  
Humidity: Ordinary Humidity / 25%(RH) to 85 %(RH)  
MURATA MFG.CO.,LTD  
Reference Only  
Spec No. JELF243C-0024B-01  
P.4/12  
5. Appearance and Dimensions  
0.6±0.03mm  
Top view  
0.3±0.03mm  
End view  
Side view  
Unit Mass (Typical value)  
0.20mg  
0.3±0.02mm  
0.2±0.03mm  
Bottom view  
0.15±0.03mm  
6. Marking  
Side surface identification marking :Blue  
Both side surface  
Blue  
7.Electrical Performance  
No. Item  
7.1 Inductance  
Specification  
Inductance shall meet item 3.  
Test Method  
Measuring Equipment:  
KEYSIGHT E4991A or equivalent  
Measuring Frequency: (0.630nH)500MHz  
(33110nH) 300MHz  
Measuring Condition:  
Test signal level / about 0dBm  
Electrical length / 10mm  
Weight / about 1N5N  
Measuring Fixture: KEYSIGHT 16197A  
Position coil under test as shown in below  
and contact coil with each terminal by  
adding weight. Bottom side should be  
a bottom, and should be in the direction of  
the fixture for position of chip coil.  
7.2  
Q
Q shall meet item 3.  
TOP  
BOTTOM  
Measuring Method:See the endnote.  
<Electrical Performance:Measuring  
Method of Inductance/Q>  
MURATA MFG.CO.,LTD  
Reference Only  
Spec No. JELF243C-0024B-01  
P.5/12  
No. Item  
Specification  
Test Method  
7.3 DC Resistance  
7.4 Self Resonant  
Frequency(S.R.F)  
7.5 Rated  
DC Resistance shall meet item 3.  
S.R.F shall meet item 3.  
Measuring Equipment:Digital multi meter  
Measuring Equipment:  
KEYSIGHT N5230A or equivalent  
The rated current is applied.  
Self temperature rise shall be  
limited to 25°C max.  
Current  
8.Mechanical Performance  
No.  
Item  
Specification  
Test Method  
8.1 Shear Test  
Chip coil shall not be damaged  
after tested as test method.  
Substrate:Glass-epoxy substrate  
Land  
0.24  
0.3  
0.9  
(in mm)  
Force:2N  
Hold Duration:5 s±1 s  
Applied Direction: Parallel to PCB  
Chip coil  
F
Substrate  
8.2 Bending Test  
Substrate:Glass-epoxy substrate  
(100mm×40mm×0.8mm)  
Speed of Applying Force:1mm /s  
Deflection:1mm  
Hold Duration:30 s  
Pressure jig  
R340  
F
Deflection  
Product  
45  
45  
(in mm)  
8.3 Vibration  
Appearance:No damage  
Inductance Change: within ±10%  
Substrate: Glass-epoxy substrate  
Oscillation Frequency:  
10Hz to 2000Hz to 10Hz for 20 min  
Total amplitude 1.5 mm or Acceleration  
amplitude 196 m/s2 whichever is smaller.  
Testing Time:A period of 2h in each of  
3 mutually perpendicular directions.  
8.4 Solderability  
The electrode shall be at least 90% Flux: Ethanol solution of rosin 25(wt)%  
covered with new solder coating.  
(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  
8.5 Resistance to  
Soldering Heat  
Appearance:No damage  
Inductance Change: within ±10%  
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:260°C±5°C  
Immersion Time:5s±1s  
Then measured after exposure in the room  
condition for 24h±2h.  
MURATA MFG.CO.,LTD  
Reference Only  
Spec No. JELF243C-0024B-01  
P.6/12  
9.Environmental Performance  
It shall be soldered on the substrate.  
No.  
Item  
Specification  
Appearance:No damage  
Inductance Change: within ±10%  
Test Method  
Substrate: Glass-epoxy substrate  
Temperature:125°C±2°C  
9.1 Heat Resistance  
9.2 Cold Resistance  
9.3 Humidity  
Time:1000h (+48h,-0h)  
Then measured after exposure in the  
room condition for 24h±2h.  
Substrate: Glass-epoxy substrate  
Temperature:-55°C±3°C  
Time:1000 h (+48h,-0h)  
Then measured after exposure in the  
room condition for 24h±2h.  
Substrate: Glass-epoxy substrate  
Temperature:40°C±2°C  
Humidity:90%(RH) to 95%(RH)  
Time:1000 h(+48h,-0h)  
Then measured after exposure in the  
room condition for 24h±2h.  
Substrate: Glass-epoxy substrate  
1 cycle:  
9.4 Temperature  
Cycle  
1 step:-55°C±2°C / 30min±3 min  
2 step:Ordinary temp. / 10~15 min  
3 step:125°C±2°C / 30±3 min  
4 step: Ordinary temp. / 10~15 min  
Total of 10 cycles  
Then measured after exposure in the  
room condition for 24h±2h.  
10.Specification of Packaging  
10.1 Appearance and Dimensions of paper tape (8mm-wide)  
+0.1  
-0  
2.0±0.05  
φ1.5  
2.0±0.05  
4.0±0.1  
1.75±0.1  
0.35)  
0.55 max.  
(in mm)  
Direction of feed  
10.2 Specification of Taping  
(1) Packing quantity (standard quantity)  
15,000 pcs. / reel  
(2) Packing Method  
Products shall be packed in the cavity of the base tape and sealed by cover 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 Cover tape has no spliced point.  
MURATA MFG.CO.,LTD  
Reference Only  
Spec No. JELF243C-0024B-01  
P.7/12  
(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.  
10.3 Pull Strength  
Cover tape  
5N min  
10.4 Peeling off force of cover tape  
Cover tape  
F
Speed of Peeling off  
300mm/min  
165 to 180  
°
0.1N to 0.6N  
(minimum value is typical)  
Peeling off force  
Base tape  
10.5 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.  
Empty tape Cover tape  
210 min.  
φ
13.0±0.2  
φ
60+1  
-
0
Direction of feed  
φ
21.0±0.8  
+1  
-0  
9.0  
13.0±1.4  
(in mm)  
+0  
φ
180  
-3  
10.6 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 : Month / Jan. to Sep. 1 to 9, Oct. to Dec. O,N,D  
Third, Fourth digit : Day  
(3) Serial No.  
2) <Expression of RoHS Marking >  
ROHS – Y ()  
(1) (2)  
(1) RoHS regulation conformity parts.  
(2) MURATA classification number  
10.7 Marking for Outside package (corrugated paper box)  
Customer name, Purchasing order number, Customer part number, MURATA part number,  
RoHS Marking (2), Quantity, etc ・・・  
10.8 Specification of Outer Case  
Outer Case Dimensions  
(mm)  
Standard Reel Quantity  
in Outer Case (Reel)  
Label  
H
W
D
H
186  
186  
93  
5
D
W
Above Outer Case size is typical. It depends on a quantity of an order.  
MURATA MFG.CO.,LTD  
Reference Only  
Spec No. JELF243C-0024B-01  
P.8/12  
11. 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  
12. Notice  
Products can only be soldered with reflow.  
This product is designed for solder mounting.  
Please consult us in advance for applying other mounting method such as conductive adhesive.  
12.1 Land pattern designing  
Chip Coil Land  
a
b
c
0.3  
c
0.9  
Solder resist  
0.24  
(in mm)  
12.2 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.  
12.3 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. JELF243C-0024B-01  
P.9/12  
Reflow soldering profile  
Temp.  
260℃  
230℃  
(℃)  
245℃±3℃  
220℃  
Limit Profile  
180  
150  
Standard Profile  
30s~60s  
60s max.  
90s±30s  
Time.(s)  
Standard Profile  
Limit Profile  
Pre-heating  
150°C180°C 90s±30s  
Heating  
Peak temperature  
Cycle of reflow  
above 220°C30s60s  
above 230°C60s max.  
260°C,10s  
245°C±3°C  
2 times  
2 times  
12.4 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  
Tip temperature  
Soldering iron output  
Tip diameter  
Soldering time  
Time  
2 times  
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.  
12.5 Solder Volume  
Solder shall be used not to be exceeded the upper limits as shown below.  
1/3Tt2T  
Upper Limit  
T : thickness of product  
Recommendable  
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 and become easy to tilt.  
12.6 Attention regarding P.C.B. bending  
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.  
a
b
Poor example  
Good example  
MURATA MFG.CO.,LTD  
Reference Only  
Spec No. JELF243C-0024B-01  
P.10/12  
(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.  
A
>
D *1  
B
A
>
>
(3) Keep the mounting position of the component away from the board separation surface.  
A
C
C
B
Seam  
D
A
a
b
Slit  
Length:a b  
<
*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 capacitor in a position as far away from the screw holes as possible.  
12.7 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  
(4) There shall be no residual flux and residual cleaner after cleaning.  
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.  
12.8 Resin coating  
When products are coated with resin, please contact us in advance.  
12.9 Handling of a substrate  
(1)There is a possibility of chip cracking caused by PCBexpansion/contraction with heat, because stress  
on a chip is different depending on PCB material and structure.  
When the thermal expansion coefficient greatly differs between the board used for mounting and the chip,  
it will cause cracking of the chip due to the thermal expansion and contraction.  
The chip is assumed to be mounted on the PCB of glass-epoxy material, and we don't test with other  
PCB material which has different thermal expansion coefficient from Glass-epoxy.  
When other PCB materials are considered, please be sure to evaluate by yourself.  
MURATA MFG.CO.,LTD  
Reference Only  
Spec No. JELF243C-0024B-01  
P.11/12  
(2)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.  
In case of the mounting on flexible PCB, there is a possibility of chip cracking caused by mechanical stress  
even from small bending or twisting.  
When the flexible PCB is considered, please be sure to evaluate by yourself.  
Bending  
Twisting  
12.10 Storage and Handing Requirements  
(1) Storage period  
Use the products within 12 months after deliverd.  
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 ~ 40°C  
Humidity  
30% to 70% relative humidity No rapid change on temperature and humidity.  
Products should not be stored on bulk packaging condition to prevent the chipping of the  
core and the breaking of winding wire caused by the collision between the products.  
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.  
(3) Handling Condition  
Care should be taken when transporting or handling product to avoid excessive vibration or  
mechanical shock.  
13.  
! 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  
Reference Only  
Spec No. JELF243C-0024B-01  
P.12/12  
<Electrical Performance:Measuring Method of Inductance/Q>  
(1) Residual elements and stray elements of test fixture can be described by F-parameter shown in following.  
2
1
I
I
A
C
B
D
Zx  
Zm  
V
2
V
1
V1  
I1  
A
C
B
D
V2  
I 2  
=
Test Head  
Test fixture  
Product  
(2) The impedance of chip coil Zx and measured value Zm can be described by input/output current/voltage.  
V1  
I 1  
V2  
I 2  
Zm=  
Zx=  
(3) Thus,the relation between Zx and Zm is following;  
Zm-β  
1-ZmΓ  
where, α= D / A =1  
Zx= α  
β= B / D =Zsm-(1-Yom Zsm)Zss  
Γ= C / A =Yom  
Zsm:measured impedance of short chip  
Zss:residual impedance of short chip (0.480nH)  
Yom:measured admittance when opening the fixture  
(4) Lx and Qx shall be calculated with the following equation.  
Im(Zx)  
2πf  
Im(Zx)  
Re(Zx)  
Lx :Inductance of chip coil  
Qx:Q of chip coil  
Qx=  
Lx=  
f
:Measuring frequency  
MURATA MFG.CO.,LTD  

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