Spec No. JELF243B-0005R-01
Reference Only
P.1/9
CHIP COIL (CHIP INDUCTORS) LQM21NN□□□□10□ REFERENCE SPECIFICATION
1. Scope
This reference specification applies to LQM21NN_10 series, Chip coil (Chip Inductors).
2. Part Numbering
(ex)
LQ
M
21
N
N
R10
K
1
0
D
Product ID Structure Dimension Applications Category Inductance Tolerance Features Electrode Packaging
D: Taping
(L×W)
and
Characteristics
(Paper tape)
L: Taping
*B:Bulk packing also available
(Plastic tape)
*B: Bulk
3. Rating
・Operating
Temperature Range
・Storage
Temperature Range
Customer
Part Number
MURATA
Part Number
– 40°C
to
+ 85°C
– 55°C
to
+125°C
Inductance
(μ
H)
Tolerance
Q
(min.)
Self
DC
Resonant
Resistance
(Ω
max.
) Frequency
(MHz min.)
Rated
Current
(mA)
LQM21NNR10K10D
LQM21NNR12K10D
LQM21NNR15K10D
LQM21NNR18K10D
LQM21NNR22K10D
LQM21NNR27K10D
LQM21NNR33K10D
LQM21NNR39K10D
LQM21NNR47K10D
LQM21NNR56K10D
LQM21NNR68K10D
LQM21NNR82K10D
LQM21NN1R0K10D
LQM21NN1R2K10D
LQM21NN1R5K10D
LQM21NN1R8K10D
LQM21NN2R2K10D
LQM21NN2R7K10L
LQM21NN3R3K10L
LQM21NN3R9K10L
LQM21NN4R7K10L
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
20
25
±10%
45
0.26
0.29
0.32
0.35
0.38
0.42
0.48
0.53
0.57
0.63
0.72
0.81
0.40
0.47
0.50
0.57
0.63
0.69
0.80
0.89
1.00
340
310
270
250
220
200
180
165
150
140
125
115
107
97
87
80
71
66
59
53
47
250
200
150
50
30
4. Testing Conditions
《Unless
otherwise specified》
《In
case of doubt》
Temperature : Ordinary Temperature / 15°C to 35°C
Temperature : 20°C± 2°C
Humidity
: Ordinary Humidity
/ 25%(RH) to 85%(RH)
Humidity
: 60%(RH) to 70%(RH)
Atmospheric Pressure : 86kPa to 106kPa
MURATA MFG.CO., LTD
Spec No. JELF243B-0005R-01
Reference Only
0.5±0.3
Ferrite
Electrode
P.2/9
5. Appearance and Dimensions
T
2.0±0.2
1.25±0.2
(in mm)
Dimension of T
Inductance: 0.10H to 2.2H
Inductance: 2.7H to 4.7H
Inductance: 0.10H to 2.2H
Inductance: 2.7H to 4.7H
0.85mm±0.2mm
1.25mm±0.2mm
0.010g
0.014g
Unit Mass
(Typical value)
6. Electrical Performance
No.
6.1
6.2
Item
Inductance
Q
Specification
Inductance shall meet item 3.
Q shall meet item 3.
Test Method
Measuring Equipment:
KEYSIGHT
4291A or equivalent
(1mA)
Measuring Frequency:
25MHz/ 0.1μ to 0.82μ
H
H
H
H
10MHz/ 1.0μ to 4.7μ
Measuring Equipment: Digital multi meter
Measuring Equipment:
KEYSIGHT
4195A or equivalent
(1mA)
The rated current is applied.
6.3
6.4
6.5
DC
Resistance
Self Resonant
Frequency
(S.R.F)
Rated Current
DC Resistance shall meet item 3.
S.R.F shall meet item 3.
Self temperature rise shall be limited
to 25°C max.
0
Inductance Change: within ±
5
%
7. Mechanical Performance
No.
7.1
Item
Shear Test
Specification
Chip coil shall not be damaged
after tested as test method.
Test Method
Applied Direction:
Solder
Chip Coil
Substrate
Ｆ
Force: 10N
Hold Duration: 5s ±1s
MURATA MFG.CO., LTD
Spec No. JELF243B-0005R-01
No.
7.2
Item
Bending Test
Reference Only
Test Method
Substrate: Glass-epoxy substrate
(100mm40mm1.6mm)
Pressure jig
R340
P.3/9
Specification
Chip coil shall not be damaged
after tested as test method.
F
Deflection
45
45
Product
(in mm)
7.3
Vibration
Appearance: No damage
Inductance Change: within ±10%
7.4
Solderability
The wetting area of the electrode
shall be at least 90% covered
with new solder coating.
7.5
Resistance to
Soldering Heat
Appearance: No damage
Inductance Change: within ±10%
Speed of Applying Force:1mm/ s
Deflection: 2mm
Hold Duration: 30s
Oscillation Frequency: 10Hz to 55Hz to 10Hz for 1min
Total Amplitude: 1.5mm
Testing Time: A period of 2 h in each of 3 mutually
Perpendicular directions.
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.
8. Environmental Performance
It shall be soldered on the substrate.
No.
Item
Specification
8.1 Heat
Appearance: No damage
Resistance
Inductance Change: within ±10%
Q Change: within ±20%
8.2
Cold
Resistance
Test Method
Temperature: 85°C±2°C
Time: 1000 h (+48h, -0h)
Then measured after exposure in the room condition
for 48h±2h.
Temperature: - 40°C±2°C
Time: 1000 h (+48h, -0h)
Then measured after exposure in the room condition
for 48h±2h.
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 48h±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± 3 min
4 step: Ordinary temp./ 10 min to 15 min
Total of 10 cycles
Then measured after exposure in the room condition
for 48h±2h.
8.3
Humidity
8.4
Temperature
Cycle
MURATA MFG.CO., LTD
Spec No. JELF243B-0005R-01
Reference Only
P.4/9
9. Specification of Packaging
9.1 Appearance and Dimensions of paper tape,plastic tape
(8mm-wide)
P/N
Type
2.0±0.05
4.0±0.1 4.0±0.1
Dimensions (in mm)
0.1
φ1.5±
0
1.75±0.1
3.5±0.05
Direction of feed
2.25±0.1
1.45±0.1
1.1
max
2.25±0.1
3.5±0.05
1.45±0.1
Direction of feed
・Dimension of the Cavity is measured at the bottom side.
9.2 Specification of Taping
(1) Packing quantity (standard quantity)
½Inductance
: 0.10H to 2.2H (Paper tape)
4,000 pcs./ reel
½Inductance
: 2.7H to 4.7
H
(Plastic tape) 3,000 pcs./ reel
(2) Packing Method
(Paper tape)
Products shall be packed in the cavity of the base tape 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
5N min.
Bottom tape
【Case
of Plastic tape】
Plastic tape
10N min.
Cover tape
5N min.
MURATA MFG.CO., LTD
8.0±0.3
LQM21NN
2R7K10L
3R3K10L
3R9K10L
4R7K10L
2.0±0.05
4.0±0.1 4.0±0.1
8.0±0.3
LQM21NN
R10K10D
to
2R2K10D
8mm-wide
Paper tape
0.1
φ1.5±
0
1.3±0.1
1.75±0.1
0.2±0.1
8mm-wide
Plastic tape
Spec No. JELF243B-0005R-01
9.4 Peeling off force
【Case
of Paper tape】
165 to 180 degree
F
Reference Only
【Case
of Plastic tape】
Top tape
P.5/9
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.
13.0±0.2
60
-
0
+1
Top tape:Paper tape
Direction of feed
Cover tape:Plastic tape
9.0
+1
-0
13.0±1.4
180
-3
+0
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)
Label
H
W
5
D
Above
Outer Case size is typical. It depends on a quantity of an order.
MURATA MFG.CO., LTD
