LQM21PNR54MG0D

Spec No. JELF243B-0023K-01 P.1/9
MURATA MFG.CO., LTD
Reference
Only
Operating Temperature C)
85 125
0
Rated Current (A)
at 85°C
Rated current
at 125°C
Rated current
CHIP COIL (CHIP INDUCTORS) LQM21PN□□□□G0D REFERENCE SPECIFICATION
1. Scope
This reference specification applies to LQM21PN_G0D series, Chip Coil (Chip Inductors).
2. Part Numbering
(ex) LQ M 21 P N R54 M G 0 D
Product ID Structure Dimension Applications Category Inductance Tolerance Dimension Other Packaging
(L×W) and (T)
D: Taping
Characteristics
*B: BULK
*B: Bulk packing also available
3. Rating
Operating Temperature Range –55°C to + 125°C
Storage Temperature Range –55°C to + 125°C
Customer
Part Number
MURATA
Part Number
Inductance
DC
Resistance
(Ω)
Self
Resonant
Frequency
(MHz min.)
Rated
Current
*1
(A)
(μH)
Tolerance
Typ Max 85
*2
125
*2
LQM21PNR47MG0D
0.47
M:±20
0.075 0.094
100
1.3
0.95
LQM21PNR54MG0D
0.54
M:±20
LQM21PN3R3MG0D
3.3
M:±20
N:±30
0.165 0.207 30 0.8
0.55
LQM21PN3R3NG0D
*1 When applied Rated current to the Products, temperature rise caused by self-generated heat shall be limited to
40 max
*2 Rated Current is derated as right figure
depending on the operating temperature.
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
5. Appearance and Dimensions
Unit Mass (Typical value)
0.012g
(in mm)
0.5±0.2
2.0±0.15
1.25±0.15
0.9±0.1
Spec No. JELF243B-0023K-01 P.2/9
MURATA MFG.CO., LTD
Reference
Only
6. Electrical Performance
No. Item Specification Test Method
6.1 Inductance
Inductance shall meet item 3. Measuring Equipment:
Agilent 4294A or equivalent
(1mA)
Measuring Frequency: 1MHz
6.2 DC Resistance DC Resistance shall meet item 3. Measuring Equipment: Digital multi meter
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 Self Resonant
Frequency
(S.R.F)
S.R.F shall meet item 3. Measuring Equipment:
Agilent 4294A or equivalent
6.4 Rated Current Self temperature rise shall be
limited to 40°C max.
The rated current is applied.
7. Mechanical Performance
No. Item Specification Test Method
7.1 Shear Test Chip coil shall not be damaged after
tested as follows.
Applied Direction
Force: 10N
Hold Duration: 5s±1s
Applied Direction: Parallel to PCB
7.2 Bending Test
Appearance: No damage Substrate: Glass-epoxy substrate
(100mm×40mm×1.0mm)
(in mm)
Speed of Applying Force: 0.5mm / s
Deflection: 3mm
Hold Duration: 30 s
Digital multi meter
(TR6846 or equivalent)
terminal2terminal1
SW
a
b
F
Chip Coil
Substrate
45
R230
F
45
Pressure jig
Deflection
Product
Spec No. JELF243B-0023K-01 P.3/9
MURATA MFG.CO., LTD
Reference
Only
No. Item Specification Test Method
7.3 Vibration Appearance: No damage Oscillation Frequency:
10Hz to 2000Hz to 10Hz for 20 min
Total amplitude 3.0 mm or Acceleration
amplitude 245m/s
2
whichever is smaller.
Testing Time:
A period of 4h in each of 3 mutually
perpendicular directions.
7.4 Drop It shall be dropped on concrete or steel
board.
Method : free fall
Height : 1m
Total of 10 cycles
7.5 Solderability The wetting area of the electrode
shall be at least 90% covered with
new solder coating.
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
7.6 Resistance to
Soldering Heat
Appearance: No damage
Inductance Change: within ±20%
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 Test Method
8.1 Heat Resistance Appearance: No damage
Inductance Change: within ±20%
Temperature: 125°C±2°C
Time: 1000h (+48h, -0h)
Then measured after exposure in the room
condition for 24h±2h.
8.2 Cold Resistance Temperature: -55°C±2°C
Time: 1000h (+48h, -0h)
Then measured after exposure in the room
condition for 24h±2h.
8.3 Humidity Temperature: 70°C±2°C
Humidity: 90%(RH) to 95%(RH)
Time: 1000h (+48h, -0h)
Then measured after exposure in the room
condition for 24h±2h.
8.4 Temperature
Cycle
1 cycle:
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 to 3 min
4 step: Ordinary temp. / 10 min to15 min
Total of 100cycles
Then measured after exposure in the room
condition for 24h±2h.

LQM21PNR54MG0D

Mfr. #:
Manufacturer:
Description:
Fixed Inductors 0805 0.54uH 20%
Lifecycle:
New from this manufacturer.
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