Reference Only
Spec No. JELF243B-0006Q-01
P.1/9
CHIP COIL (CHIP INDUCTORS) LQM21FN□□□□00□ REFERENCE SPECIFICATION
1. Scope
This reference specification applies to LQM21FN□□□□00□ series, Chip coil (Chip Inductors).
2. Part Numbering
(ex)
LQ
M
21
F
N
1R0
N
0
0
D
Packaging
D: Taping
(Paper tape)
L: Taping
(Plastic tape)
*B: BULK
Product ID Structure Dimension Applications Category Inductance Tolerance Features Electrode
(L×W) and
Characteristics
*B: Bulk packing also available
3. Rating
・Operating
Temperature Range
・Storage
Temperature Range
– 40°C to + 85°C
– 55°C to +125°C
DC
Resistance
(Ω)
Self
Resonant
Frequency
(MHz min.)
Rated
Current
(mA)
Customer
Part Number
MURATA
Part Number
Inductance
(μH)
Tolerance
LQM21FN1R0N00D
LQM21FN2R2N00D
LQM21FN4R7N00L
LQM21FN100N00L
LQM21FN220N00L
LQM21FN470N00L
1.0
2.2
4.7
10
22
47
±30%
0.20±30%
0.28±30%
0.30±30%
0.50±30%
0.35±30%
0.60±30%
105
70
25
15
15
7.5
220
150
80
60
13
7
4. Appearance and Dimensions
0.5±0.3
Ferrite
Electrode
T
2.0±0.2
1.25±0.2
(in mm)
Inductance: 1.0μH to 2.2μH
Inductance: 4.7μH to 47μH
0.85mm±0.2mm
1.25mm±0.2mm
Dimension of T
Unit Mass
(Typical value)
Inductance: 1.0μH to 2.2μH
Inductance: 4.7μH to 47μH
0.010g
0.016g
5. Testing Conditions
《Unless
otherwise specified》
《In
case of doubt》
Temperature : Ordinary Temperature / 15°C to 35°C
Temperature : 20°C ± 2°C
: Ordinary Humidity
/ 25%(RH) to 85%(RH)
Humidity
: 60%(RH) to 70%(RH)
Humidity
Atmospheric Pressure : 86kPa to 106kPa
MURATA MFG.CO., LTD
Reference Only
Spec No. JELF243B-0006Q-01
P.2/9
6. Electrical Performance
No.
6.1
Item
Inductance
Specification
Inductance shall meet item 3.
Test Method
Measuring Equipment:
Agilent 4291A or equivalent
(1mA)
Measuring Frequency: 1MHz
Measuring Equipment: Digital multi meter
Digital multi meter
(TR6846 or equivalent)
a
terminal1
SW
b
terminal2
6.2
DC Resistance
DC Resistance shall meet item 3.
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.
6.3
6.4
Self Resonant
Frequency
(S.R.F)
Rated Current
S.R.F shall meet item 3.
Self temperature rise shall be limited
to 25°C max.
Inductance Change: within ±50%
Measuring Equipment:
Agilent 4291A or equivalent
(1mA)
The rated current is applied.
7. Mechanical Performance
No.
7.1
Item
Shear Test
Specification
Chip coil shall not be damaged after
tested as follows.
Test Method
Applied Direction
Chip Coil
F
Substrate
7.2
Bending Test
Force: 10N
Hold Duration: 5s±1s
Applied Direction: Parallel to PCB
Substrate: Glass-epoxy substrate
(100mm×40mm×1.6mm)
Pressure jig
R340
F
Deflection
45
45
Product
(in mm)
7.3
Vibration
Speed of Applying Force: 1mm / s
Deflection: 1mm
Hold Duration: 30s
Oscillation Frequency:
10Hz to 55Hz to 10Hz for 1 minute
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-0006Q-01
No.
7.4
Item
Solderability
Specification
The wetting area of the electrode
shall be at least 90% covered with
new solder coating.
P.3/9
Test Method
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)
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.
7.5
Resistance to
Soldering Heat
Appearance: No damage
Inductance Change: within ±20%
8. Environmental Performance
It shall be soldered on the substrate.
No.
Item
Specification
8.1 Heat Resistance
Appearance: No damage
Inductance Change: within ±20%
Test Method
Temperature: 85°C±2°C
Time: 1000h (+48h,-0h)
Then measured after exposure in the room
condition for 24h±2h.
Temperature: 40°C±2°C
Humidity: 90%(RH) to 95%(RH)
Time: 1000h (+48h, -0h)
Then measured after exposure in the room
condition for 24h±2h.
1 cycle:
1 step: -40°C±2°C / 30 min±3 min
2 step: Ordinary temp. / 10 min to 15 min
3 step: +85°C±2°C / 30 min to 3 min
4 step: Ordinary temp. / 10 min to15 min
Total of 10 cycles
Then measured after exposure in the room
condition for 24 h±2 h.
8.2
Humidity
8.3
Temperature
Cycle
MURATA MFG.CO., LTD
Reference Only
Spec No. JELF243B-0006Q-01
P.4/9
9. Specification of Packaging
9.1 Appearance and Dimensions of paper tape / plastic tape
P/N
Type
Dimensions (in mm)
2.0±0.05
4.0±0.1
4.0±0.1
0.1
φ
1.5±
0
3.5±0.05
2.25 ±0.1
Direction of feed
1.45±0.1
8.0±0.3
LQM21FN
1R0N00D
2R2N00D
8mm-wide
Paper tape
1.75±0.1
1.1 max.
2.0±0.05
4.0±0.1
4.0±0.1
1 .7 5 ±0 .1
1.3±0.1
0.2±0.1
3 .5 ±0 .0 5
2 .2 5 ±0 .1
Direction of feed
1.45±0.1
・Dimension of the Cavity is measured at the bottom side.
9.2 Specification of Taping
(1) Packing quantity (standard quantity)
・Inductance
: 1.0μH to 2.2μH (Paper tape)
・Inductance
: 4.7μH to 47μH (Plastic tape)
4,000 pcs / reel
3,000 pcs / reel
(2) Packing Method
(Paper tape)
Products shall be packed in the cavity of the base tape continuously and sealed by top tape and
bottom tape.
(Plastic tape)
Products shall be packed in the each embossed cavity of plastic 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
(Paper tape)
Base tape and Top tape has no spliced point.
(Plastic tape)
Plastic tape and Cover 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
【Case
of Paper tape】
Top tape
Bottom tape
【Case
of Plastic tape】
Plastic tape
Cover tape
10N min.
5N min.
5N min.
MURATA MFG.CO., LTD
8 .0 ±0 .3
LQM21FN
4R7N00L
100N00L
220N00L
470N00L
0.1
φ
1.5±
0
8mm-wide
Plastic tape
Reference Only
Spec No. JELF243B-0006Q-01
9.4 Peeling off force of cover tape
【Case
of Paper tape】
165 to 180 degree
Top tape
F
P.5/9
【Case
of Plastic tape】
165 to 180 degree
F
Cover tape
Bottom tape
Base tape
Plastic tape
Speed of Peeling off
Peeling off force
300mm / min
Paper tape: 0.1N to 0.6N
Plastic tape: 0.2N to 0.7N
(minimum value is typical)
9.5 Dimensions of Leader-tape, Trailer and Reel
There shall be leader-tape ( top tape / cover tape and empty tape) and trailer-tape (empty tape) as follows.
2.0±0.5
Trailer
160 min.
Leader
Label
190 min.
Empty tape
210 min.
φ
13.0±0.2
φ
60
-
0
+1
Top tape:Paper tape
Direction of feed
Cover tape:Plastic tape
9.0
+1
-0
13.0±1.4
φ
180
-3
+0
φ
21.0±0.8
(in mm)
9.6 Marking for reel
Customer part number, MURATA part number, Inspection number (∗1), RoHS Marking (∗2), Quantity
etc
½½½
∗1)
<Expression of Inspection No.>
(1)
Factory Code
□□
OOOO
×××
(1)
(2)
(3)
(2) Date
(3)
Serial No.
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
∗2)
<Expression of RoHS Marking >
(1)
RoHS regulation conformity parts.
(2)
MURATA classification number
ROHS – Y (△)
(1) (2)
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
½½½
9.8. Specification of Outer Case
Outer Case Dimensions
(mm)
W
D
H
186
186
93
Standard Reel Quantity
in Outer Case (Reel)
5
Label
H
D
W
∗
Above Outer Case size is typical. It depends on a quantity of an order.
MURATA MFG.CO., LTD
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