Datasheet

2. Standard Soldering Conditions
(1) Soldering method
Chip inductor (Chip coils) can be flow or reflow soldered.
Please contact Murata regarding other soldering
methods.
As for LQH2MC/2HP/3NP/32P/44P/5BP/55D/55P/66S,
LQM32P, LQW15C/18C series, please use reflow
soldering.
Solder: Use Sn-3.0Ag-0.5Cu solder.
Flux: Use rosin-based flux, but not strongly acidic flux (with
chlorine content exceeding 0.2wt%).
Do not use water-soluble flux.
The flux used for LQW15C/18C series should use the
rosin-based flux that includes middle activator
equivalent to 0.06wt% to 0.1wt% chlorine.
For additional mounting methods, please contact Murata.
"Reflow Soldering profile
(Sn-3.0Ag-0.5Cu solder)
Series
Standard Profile Limit Profile
Temp. (T1)
Time. (t1)
Heating
220°C 30 to 60s 245±3°C
2 times
max.
230°C 260°C/10s
2 times
max.
60s max.
Cycle
of reflow
Peak
temperature
(T2)
Temp. (T3) Time. (t2)
Heating
Cycle
of reflow
Peak
temperature
(T4)
150
180
T2
T4
T3
T1
Temperature (°C)
90±30s time (s)
t2
t1
Limit Profile
Standard Profile
Pre-heating
LQM18F/18P
LQM21D/21F/21P/2MP/2HP
LQM31F/31P
LQH2MC, LQH2HP
LQH31C
LQH3NP/32P/43P/44P/5BP/55P
LQW15C/18C
LQH32C
LQH43C
LQH55D, LQH66S
220°C 30 to 60s 245±3°C
2 times
max.
230°C 260°C/10s 1 time60s max.
(2) Soldering profile
"Flow Soldering profile
(Sn-3.0Ag-0.5Cu solder)
Series
Pre-heating
Standard Profile Limit Profile
Heating
Temp. (T1) Temp. (T2)
Time. (t1)
150°C 60s min. 250°C 4 to 6s
2 times
max.
5s max.
2 times
max.
265±3°C
Time. (t2)
Heating
Cycle
of flow
Temp. (T3) Time. (t2)
Cycle
of flow
T1
T3
T2
Temperature (°C)
Pre-heating time (s)
t2
Heating
Limit Profile
Standard Profile
t1
150°C 60s min. 250°C 4 to 6s
2 times
max.
5s max.
1 times
265±3°C
LQM18F/18P
LQM21D/21F/21P/2MP/2HP
LQM31F/31P
LQH31C
LQH32C
LQH43C/43P
Continued on the following page.
Inductor for Power Lines (Power Inductor) Soldering and Mounting
81
Inductor for Low Frequency CircuitsRF Inductor
Soldering and Mounting
Inductor for Power Lines (Power Inductor)
!Note
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering.
O05E.pdf
Oct.13,2011