Reference Only
Spec.No.JENF243A-0038L-01
Chip Ferrite Bead BLM02□X□□□SN1□
P1/10
Reference Specification
1.Scope
This reference specification applies to Chip Ferrite Bead BLM02□X_SN Series.
2.Part Numbering
(ex.)
BL
M
02
AX
121 S
N
1
D
(1)
(2)
(3)
(4)
(5)
(6) (7)
(8) (9)
(1)Product ID (2)Type (3)Dimension(L×W) (4)Characteristics (5)Typical Impedance at 100MHz
(6)Performance (7)Category (8)Numbers of Circuit (9)Packaging
D:Paper Tape
*B:Bulk
*Bulk packing also available. (A product is put in the plastic bag under the taping conditions.)
3.Rating
MURATA
Part Number
BLM02AX100SN1D
10±5Ω
BLM02AX700SN1D
70±25%
BLM02AX121SN1D
120±25%
BLM02AX241SN1D
240±25%
BLM02AX331SN1D
330±25%
BLM02BX121SN1D
120±25%
BLM02BX151SN1D
150±25%
240±25%
BLM02BX241SN1D
5 to15
BLM02PX100SN1D
22±25%
BLM02PX220SN1D
33±25%
BLM02PX330SN1D
60±25%
BLM02PX600SN1D
BLM02KX100SN1D
10±5Ω
BLM02KX180SN1D
18±25%
■Operating Temperature : -55°C to +125°C
(Note) As for the Rated current marked with *1,
Rated Current is derated as right figure
depending on the operating temperature.
Rated
Current(mA)
at 85°C
at 125°C
DC Resistance
(Ω max.)
Initial
Values
Values
After
Testing
Remark
750
300
250
200
150
0.07
0.12
0.36
0.46
For general
0.5
0.6
use
0.9
1.0
1.4
1.5
350*1
240*1
0.5
0.6
For high speed
280*1
200*1
0.7
0.8
signal line
240*1
160*1
1.1
1.2
1100*1
850*1
0.05
0.10
1
550*1
0.11
0.16
750*
550*1
400*1
0.20
0.25 For DC
500*1
350*1
0.25
0.30 power line
1500*1
1250*1
0.03
0.08
1200*1
950*1
0.045
0.095
■Storage Temperature : -55°C to +125°C
R a te d C u rre n t ( A )
Customer
Part Number
Impedance (Ω)
(at 100MHz,
Under Standard
Testing Condition)
Rated current
at 85°C
Rated current
at 125°C
0
85
125
Operating Temperature (°C)
MURATA MFG.CO.,LTD.
Reference Only
Spec.No.JENF243A-0038L-01
4.Style and Dimensions
Except for BLM02KX
P2/10
BLM02KX
■ Equivalent Circuit
(
)
Resistance element becomes
dominant at high frequencies.
■ Unit Mass (Typical value)
BLM02KX
:0.095mg
Except for BLM02KX :0.08mg
(in mm)
5.Marking
No marking.
6.Standard Testing Conditions
< Unless otherwise specified >
Temperature : Ordinary Temp. (15 °C to 35 °C )
Humidity : Ordinary Humidity (25%(RH) to 85%(RH))
< In case of doubt >
Temperature : 20°C±2 °C
Humidity : 60%(RH) to 70%(RH)
Atmospheric pressure : 86kPa to 106kPa
7.Specifications
7-1.Electrical Performance
No.
Item
7-1-1 Impedance
Specification
Meet item 3.
7-1-2
Meet item 3.
DC Resistance
Test Method
Measuring Frequency : 100MHz±1MHz
Measuring Equipment : KEYSIGHT4291A or the equivalent
Test Fixture : KEYSIGHT16197A or the equivalent
Measuring Equipment : Digital multi meter
* Except resistance of the Substrate and Wire
7-2.Mechanical Performance
No.
Item
7-2-1 Appearance and
Dimensions
7-2-2 Bending
Strength
Specification
Meet item 4.
Meet Table 1.
Table 1
Appearance
Impedance
Change
(at 100MHz)
DC
Resistance
No damage
Test Method
Visual Inspection and measured with Measuring
Microscope.
It shall be soldered on the Glass-epoxy substrate.
Substrate : 100mm×40mm×0.8mm
Deflection : 1.0mm
Speed of Applying Force : 0.5mm/s
Keeping Time : 30s
Within ±30%
Meet item 3.
MURATA MFG.CO.,LTD.
Reference Only
Spec.No.JENF243A-0038L-01
No. Item
7-2-3 Vibration
Specification
Meet Table 1.
7-2-4 Resistance
to Soldering
Heat
(Reflow)
7-2-5 Solderability
The electrodes shall be at
least 95% covered with new
solder coating.
P3/10
Test Method
It shall be soldered on the substrate.
Oscillation Frequency : 10Hz to 2000Hz to 10Hz for 20 min
Amplitude : Total Amplitude 1.5mm or
Acceleration amplitude 196m/s2
whichever is smaller.
Testing Time : A period of 2 hours in each of 3 mutually
perpendicular directions. (Total 6 h)
Pre-Heating : 150°C~180°C, 90s±30s
Solder : Sn-3.0Ag-0.5Cu
Heating:above 230°C,60s
Peak temperture:260°C,10s
Cycle of reflow:2 times
Then measured after exposure in the room condition
for 48h±4h.
Flux : Ethanol solution of rosin,25(wt)%
Pre-Heating : 150°C±10°C, 60s~90s
Solder : Sn-3.0Ag-0.5Cu
Solder Temperature : 240°C±5°C
Immersion Time : 3s±1s
Immersion and emersion rates : 25mm/s
7-3.Environmental Performance
It shall be soldered on the substrate.
No.
Item
Specification
7-3-1 Temperature
Meet Table 1.
Cycle
7-3-2 Humidity
7-3-3 Heat Life
7-3-4 Cold Resistance
Test Method
1 cycle :
1 step : -55 °C(+0 °C,-3 °C) / 30min±3min
2 step : Ordinary temp. / 10min to 15min
3 step : +125 °C(+3 °C,-0 °C) / 30min±3min
4 step : Ordinary temp. / 10min to 15min
Total of 100 cycles
Then measured after exposure in the room condition for 48h±4h.
Temperature : 70°C±2°C
Humidity : 90%(RH) to 95%(RH)
Time : 1000h(+48h,-0h)
Then measured after exposure in the room condition for 48h±4h.
Temperature : 125°C±3°C
Applying Current : Rated Current
Time : 1000h(+48h,-0h)
Then measured after exposure in the room condition for 48h±4h.
Temperature : -55±2°C
Time : 1000h(+48h,-0h)
Then measured after exposure in the room condition for 48h±4h.
MURATA MFG.CO.,LTD.
Reference Only
Spec.No.JENF243A-0038L-01
8.Specification of Packaging
8-1.Appearance and Dimensions (8mm-wide / paper tape)
【8mm-wide paper tape:Except for BLM02KX】
【8mm-wide paper tape:BLM02KX】
(1) Taping
Products shall be packaged in the each embossed cavity of 8mm-wide, 2mm-pitch continuously
and sealed by cover tape.
(2) Sprocket hole : The sprocket holes are to the right as the tape is pulled toward the user.
(3) Spliced point : The cover tape has no spliced point.
(4) Cavity:There shall not be burr in the cavity.
(5) Missing components number
Missing components number within 0.025% of the number per reel or 1 pc., whichever is greater,
and are not continuous. The specified quantity per reel is kept.
MURATA MFG.CO.,LTD.
P4/10
Reference Only
Spec.No.JENF243A-0038L-01
P5/10
8-2.Tape Strength
(1)Pull Strength
Cover tape
5N min.
165 to 180 degree
(2)Peeling off force of Cover tape
0.1N to 0.7N (Minimum value is typical.)
*Speed of Peeling off:300mm/min
Cover tape
F
Base tape
8-3.Taping Condition
(1)Standard quantity per reel
Type
BLM02AX/BLM02BX/BLM02PX
BLM02KX
Quantity per 180mm reel
20000 pcs. / reel
15000 pcs. / reel
(2)There shall be leader-tape(top tape and empty tape) and trailer- tape(empty tape) as follows.
(3)On paper tape, the top tape and the base tape shall not be adhered at the tip of the empty leader tape
for more than 5 pitch.
(4) Marking for reel
The following items shall be marked on a label and the label is stuck on the reel.
(Customer part number, MURATA part number, Inspection number(∗1), RoHS marking(∗2), Quantity, etc)
∗1) « Expression of Inspection No. »
(1) Factory Code
(2) Date
□□
(1)
OOOO ×××
(2)
(3)
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
(5) Outside package
These reels shall be packed in the corrugated cardboard package and the following items shall be marked on
a label and the label is stuck on the box.
(Customer name, Purchasing Order Number, Customer Part Number, MURATA part number,
RoHS marking(∗2) , Quantity , etc)
(6)Dimensions of reel and taping(leader-tape, trailer-tape)
MURATA MFG.CO.,LTD.
Reference Only
Spec.No.JENF243A-0038L-01
P6/10
8-4. Specification of Outer Case
Label
H
D
W
Outer Case Dimensions
Standard Reel Quantity in Outer Case
(mm)
(Reel)
W
D
H
186
186
93
5
∗ Above Outer Case size is typical. It depends on a quantity of an order.
9. ! Caution
9-1.Surge current
Excessive surge current (pulse current or rush current) than specified rated current applied to the product may cause a
critical failure, such as an open circuit, burnout caused by excessive temperature rise.
Please contact us in advance in case of applying the surge current.
9-2.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
(6)Disaster prevention / crime prevention equipment
(2)Aerospace equipment
(7)Traffic signal equipment
(3)Undersea equipment
(8)Transportation equipment (vehicles,trains,ships,etc.)
(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
9-3. Corrosive gas
Please refrain from use since contact with environments with corrosive gases (sulfur gas [hydrogen sulfide, sulfur
dioxide, etc.], chlorine, ammonia, etc.) or oils (cutting oil, silicone oil, etc.) that have come into contact with the
previously stated corrosive gas environment will result in deterioration of product quality or an open from deterioration
due to corrosion of product electrode, etc. We will not bear any responsibility for use under these environments.
MURATA MFG.CO.,LTD.
Reference Only
Spec.No.JENF243A-0038L-01
P7/10
10. 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.
10-1.Land pattern designing
• Standard land dimensions (Reflow soldering)
Chip Ferrite Bead
c
a
b
0.18
0.48
c
0.215
(in mm)
Solder Resist
a
Pattern
b
Rated
Current
(A)
a
max.1.1
0.18
b
c
0.48 0.215
Land pad thickness
and dimension d
18μm
35μm
70μm
0.23
0.23
0.23
(in mm)
*The excessive heat by land pads may cause
deterioration at joint of products with substrate
10-2. Mounting Conditions
・Please check the mounting condition before using.
・Using mounting conditions (nozzles, equipment conditions, etc.) that are not suitable for products
may lead to pick up errors, misalignment, or damage to the product.
10-3.Soldering Conditions
(1) Flux,Solder
Flux
Solder
Use rosin-based flux, but not highly acidic flux (with chlorine content exceeding 0.2(wt)%. )
Do not use water-soluble flux.
Use Sn-3.0Ag-0.5Cu solder
Standard thickness of solder paste : 50 µm to 80 μm
MURATA MFG.CO.,LTD.
Reference Only
Spec.No.JENF243A-0038L-01
P8/10
(2) Soldering conditions
• Pre-heating should be in such a way that the temperature difference between solder and ferrite surface is limited
to 150°C max. Also cooling into solvent after soldering should be in such a way that the temperature difference
is limited to 100°C max.
Insufficient pre-heating may cause cracks on the ferrite, resulting in the deterioration of product 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.
Temp.
(℃)
260℃
245℃±3℃
220℃
230℃
Limit Profile
180
150
Standard Profile
30s~60s
60s max.
90s±30s
Pre-heating
Heating
Peak temperature
Cycle of reflow
Time. (s)
Standard Profile
150~180°C 、90s±30s
above 220°C、30s~60s
245±3°C
2 times
Limit Profile
above 230°C、60s max.
260°C,10s
2 times
10-4.Solder Volume
Solder shall be used not to be exceed as shown below.
Upper Limit
Recommendable
1/3T≦t≦T
(T:Chip thickness)
t
Accordingly increasing the solder volume, the mechanical stress to product is also increased.
Exceeding solder volume may cause the failure of mechanical or electrical performance.
10-5.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 for board warpage.
a
Products shall be located in the sideways
direction (Length:a D *1
A > B
A > C
C
B
D
A
Slit
*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 component in a position as far away from the screw holes as possible.
Screw Hole
Recommended
10-6.Mounting density
Add special attention to radiating heat of products when mounting the inductor near the products with heating.
The excessive heat by other products may cause deterioration at joint of this product with substrate.
10-7. Cleaning
When cleaning this product, observe the following conditions.
Any cleaning may cause deterioration in the quality of the product, so please check the quality of this product
before use.
(1) The cleaning temperature shall be 60°C max. If isopropyl alcohol (IPA) is used, the cleaning temperature shall
be 40°C max.
(2) When ultrasonic cleaning is used, under some cleaning conditions, the substrate could resonate and the
substrate vibrations could result in chip cracks, solder breakage, and other problems. Be sure to always perform
a test cleaning beforehand using an actual cleaning device, and then check the quality of the products.
(3) Cleaner
Alcohol-based cleaner: IPA
Aqueous agent: PINE ALPHA ST-100S
(4) There shall be no residual flux or residual cleaner.
When using aqueous agent, rinse the product with deionized water adequately and completely dry it so that no
cleaner is left.
* For other cleaning, please consult our technical department.
Please contact us.
MURATA MFG.CO.,LTD.
Spec.No.JENF243A-0038L-01
Reference Only
P10/10
10-8. Operating Environment
Do not use this product under the following environmental conditions, on deterioration of the Insulation Resistance of
the Ferrite material and/or corrosion of Inner Electrode may result from the use.
(1) in the corrodible atmosphere such as acidic gases, alkaline gases, chlorine, sulfur gases, organic gases and etc.
(the sea breeze, Cl2, H2S, NH3, SO2, NO2,etc)
(2) in the atmosphere where liquid such as organic solvent, may splash on the products.
(3) in the atmosphere where the temperature / humidity changes rapidly and it is easy to dew.
10-9. Resin coating
When products are coated with resin, please contact us in advance.
10-10. Handling of a substrate
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.
Bending
Twisting
10-11.Storage Conditions
(1)Storage period
Use the products within 6 months after delivered.
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 to 40°C
Humidity
: 15% to 85% relative humidity
No rapid change on temperature and humidity
• Don't keep products in corrosive gases such as sulfur, chlorine gas or acid, or it may cause oxidization
of electrode, resulting in poor solderability.
• 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.
• Avoid storing the product by itself bare (i.e.exposed directly to air).
(3)Delivery
Care should be taken when transporting or handling product to avoid excessive vibration or mechanical shock.
11. !
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.