Spec. No. JENF243A-9114F-01
Reference Only
P.1/10
Chip Ferrite Bead BLM21□□□□□□Z1□
Murata Standard Reference Specification[AEC-Q200]
1. Scope
This reference specification applies to Chip Ferrite Bead for Automotive Electronics BLM21_SZ Series based on
AEC-Q200 except for Power train and Safety.
2. Part Numbering
(ex.)
BL
M
21
AG
121
S
Z
1
D
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(1)Product ID
(7)Category (for Automotive Electronics)
(2)Type
(8)Numbers of Circuit
(9)Packaging
(3)Dimension (L×W)
(4)Characteristics
D:Taping(φ180mm Reel, Paper Tape)
(5)Typical Impedance at 100MHz
L:Taping(φ180mm Reel, Plastic Tape)
(6)Performance
3. Rating
Customer
Part Number
MURATA
Part Number
BLM21PG220SZ1D
BLM21PG300SZ1D
BLM21PG600SZ1D
BLM21PG121SZ1D
BLM21PG221SZ1D
BLM21PG331SZ1D
BLM21SN300SZ1D
BLM21SP700SZ1D
BLM21SP111SZ1D
BLM21SP181SZ1D
BLM21SP331SZ1D
BLM21SP471SZ1D
BLM21SP601SZ1D
BLM21SP102SZ1D
DC Resistance
(Ω) max. (*1)
Rated Current
(refer to below ESD Rank
(mA)( *2)
comment)
2:2kV
6:25kV
Initial
Values
Values After
at
at
Typical
Testing
85℃ 125℃
*2
*2
22
0.009
0.018
6000 3300
*2
*2
30
0.014
0.028
4000 2300
*2
*2
60
0.02
0.04
3500 1900
*2
*2
120
0.03
0.06
3000 1550
*2
*2
220
0.045
0.09
2000 1250
*2
*2
330
0.07
0.14
1500 1000
*2
*2
30
0.004
0.005
8500 6000
2
*2
*2
70
0.009
0.012
6000 4000
*2
*2
110
0.013
0.016
5000 3300
*2
*2
180
0.020
0.025
4000 2600
*2
*2
330
0.040
0.051
2800 1900
*2
*2
470
0.050
0.063
2500 1700
*2
*2
600
0.060
0.074
2300 1500
*2
*2
1000
0.120
0.144
1600 1100
Impedance (Ω)
(at 100MHz) (*1)
(refer to below comment)
22±25%
20 min.
60±25%
120±25%
220±25%
330±25%
30±10Ω
70±25%
110±25%
180±25%
330±25%
470±25%
600±25%
1000±25%
MURATA MFG.CO., LTD.
Spec. No. JENF243A-9114F-01
Customer
Part Number
MURATA
Part Number
Reference Only
Impedance (Ω)
(at 100MHz) (*1)
(refer to below comment)
Rated Current
(mA)( *2)
DC Resistance
(Ω) max. (*1)
(refer to below
comment)
Initial
Typical
BLM21BB050SZ1D
BLM21BB600SZ1D
BLM21BB750SZ1D
BLM21BB121SZ1D
BLM21BD121SZ1D
BLM21BB151SZ1D
BLM21BD151SZ1D
BLM21BB201SZ1D
BLM21BB221SZ1D
BLM21BD221SZ1D
BLM21BB331SZ1D
BLM21BD331SZ1D
BLM21BD421SZ1D
BLM21BB471SZ1D
BLM21BD471SZ1D
BLM21BD601SZ1D
BLM21BD751SZ1D
BLM21BD102SZ1D
BLM21BD152SZ1D
BLM21BD182SZ1D
BLM21BD222SZ1L
BLM21BD222TZ1D
BLM21BD272SZ1L
BLM21AG121SZ1D
BLM21AG151SZ1D
BLM21AG221SZ1D
BLM21AG331SZ1D
BLM21AG471SZ1D
BLM21AG601SZ1D
BLM21AG102SZ1D
• Operating Temperature : -55°C to +125°C
Values
at
at
85℃ 125℃
Values
After
Testing
5±25%
5
1000
0.02
0.04
60±25%
60
800
0.13
0.23
75±25%
75
700
0.16
0.26
120±25%
120
600
0.19
0.29
120±25%
120
350
0.25
0.35
150±25%
150
600
0.21
0.31
150±25%
150
350
0.25
0.35
200±25%
200
500
0.26
0.36
220±25%
220
500
0.26
0.36
220±25%
220
350
0.25
0.35
330±25%
330
400
0.33
0.43
330±25%
330
300
0.3
0.4
420±25%
420
300
0.3
0.4
470±25%
470
400
0.4
0.5
470±25%
470
300
0.35
0.45
600±25%
600
300
0.35
0.45
750±25%
750
250
0.4
0.5
1000±25%
1000
250
0.4
0.5
1500±25%
1500
250
0.45
0.55
1800±25%
1800
250
0.5
0.6
1600 min.
2250
250
0.6
0.7
2200±25%
2200
200
0.6
0.7
2700±25%
2700
200
0.8
0.9
120±25%
120
1000
0.09
0.19
150±25%
150
1000
0.09
0.19
220±25%
220
900
0.12
0.22
330±25%
330
800
0.15
0.25
470±25%
470
700
0.18
0.28
600±25%
600
700
0.2
0.3
1000±25%
1000
600
0.27
0.37
• Storage Temperature : -55°C to +125°C
P.2/10
ESD Rank
2:2kV
6:25kV
2
(*1)
Standard Testing Conditions
(Note)As for Rated currentmarked with *2,
Rated Current is derated as right figure
depending on the operating temperature.
< In case of doubt >
Temperature : 20°C±2 °C
Humidity : 60%(RH) to 70%(RH)
Atmospheric pressure : 86kPa to 106kPa
R a te d C u rr e n t ( A )
< Unless otherwise specified >
Temperature : Ordinary Temp. (15 °C to 35 °C )
Humidity : Ordinary Humidity (25%(RH) to 85%(RH))
85℃
x
Describe the Rated current as x[A]
in case of more than 1A.
1
125℃
0
85
125
Operating Temperature (°C)
MURATA MFG.CO., LTD.
Reference Only
Spec. No. JENF243A-9114F-01
P.3/10
4. Style and Dimensions
L
W
■ Equivalent Circuit
T
E
:Electrode
(
)
Resistance element becomes
dominant at high frequencies.
■ Unit Mass (Typical value)
0.010g
0.014g ( for 21BD222SZ1□/21BD272SZ1□)
L
2.0±0.2
W
T
E
0.85±0.2
0.5±0.2
1.25±0.2 for 21BD222SZ1□
21BD272SZ1□ for 21BD272SZ1□
1.25±0.2
0.3±0.2
(in mm)
5. Marking
No marking.
6. Specifications
6-1. Electrical Performance
No.
Item
Impedance
6-1-1
Specification
Meet item 3.
6-1-2 DC Resistance
Meet item 3.
Test Method
Measuring Frequency : 100MHz±1MHz
Measuring Equipment : KEYSIGHT4291A or the equivalent
Test Fixture : KEYSIGHT16192A or the equivalent
Measuring Equipment : Digital multi meter
*Except resistance of the Substrate and Wire
6-2. Mechanical Performance (based on Table 13 for FILTER EMI SUPPRESSORS/FILTERS)
AEC-Q200 Rev.D issued June. 1 2010
AEC-Q200
No.
Stress
Test Method
3
High
1000hours at 125 deg C
Temperature
Set for 24hours at room
Exposure
temperature, then
measured.
4
Temperature Cycling
5
Destructive
Physical Analysis
7
Biased Humidity
Murata Specification / Deviation
Meet Table A after testing.
Table A
Appearance
No damage
Impedance
Within ±30%
Change
(for BLM21SN within±50%)
(at 100MHz)
DC
Meet item 3.
Resistance
1000cycles
-55 deg C to +125 deg C
Set for 24hours at room
temperature, then
measured.
Per EIA469
No electrical tests
Meet Table A after testing.
1000hours at 85 deg C,
85%RH
Apply max rated current.
Meet Table A after testing.
No defects
MURATA MFG.CO., LTD.
Reference Only
Spec. No. JENF243A-9114F-01
AEC-Q200
Stress
No.
P.4/10
Murata Specification / Deviation
Test Method
8
Operational Life
Apply 125 deg C
1000hours
Set for 24hours at room
temperature, then
measured
Meet Table A after testing.
If the rated current of parts exceed 1A,
the operating temperature should be 85 deg C.
9
External Visual
Visual inspection
No abnormalities
10
Physical Dimension
Meet ITEM 4
No defects
(Style and Dimensions)
12
Resistance to Solvents Per MIL-STD-202 Method Not Applicable
215
13
Mechanical Shock
Per MIL-STD-202 Method Meet Table B after testing.
213
Table B
Condition F:
Appearance
1500g’s(14.7N)/0.5ms/
Impedance
Half sine
Change
(at 100MHz)
DC
Resistance
No damage
Within ±30%
Meet item 3.
14
Vibration
Meet Table B after testing.
5g's(0.049N) for 20
minutes, 12cycles each of
3 orientations
Test from 10-2000Hz.
15
Resistance
to Soldering Heat
Solder temperature
260C+/-5 deg C
Immersion time 10s
Pre-heating:150C +/-10 deg,60s to 90s
Meet Table A after testing.
17
ESD
Per AEC-Q200-002
Meet Table A after testing.
ESD Rank: Refer to Item 3. Rating
18
Solderability
Per J-STD-002
19
Electrical
Characterization
Measured : Impedance
Method b : Not Applicable
95% of the terminations is to be soldered.
No defects
20
Flammability
Per UL-94
Not Applicable
21
Board Flex
Epoxy-PCB(1.6mm)
Meet Table B after testing.
Deflection 2mm(min)
60s minimum holding time
22
Terminal Strength
Per AEC-Q200-006
No defects
30
Electrical
Transient
Conduction
Per ISO-7637-2
Not Applicable
MURATA MFG.CO., LTD.
Reference Only
Spec. No. JENF243A-9114F-01
P.5/10
7. Specification of Packaging
7-1. Appearance and Dimensions
Appearance and Dimensions
a
2.0±0.05
4.0±0.1
+0.1
4.0±0.1
8mmBLM21BD222SZ1L wide
BLM21BD272SZ1L Plastic
tape
1.1
max.
3.5±0.05
8mmwide
Paper
tape
2.25±0.1
BLM21
except
21BD222SZ1L
21BD272SZ1L
φ 1.5 -0
Plastic Tape
a
Paper Tape
0.2±0.1
8.0±0.3
Type
1.75±0.1
Part Number
1.45±0.1
1.3
±0.1
There are holes in the cavity
of the Plastic tape φ 1.0 +0.3
-0
Direction of feed
a
*Dimension of the Cavity is measured at the bottom side.
(in mm)
Paper tape
Plastic tape
Products shall be packaged in the cavity of the base Products shall be packaged in the each embossed
tape of 8mm-wide, 4mm-pitch continuously and
cavity of 8mm-wide, 4mm-pitch plastic tape
sealed by top tape and bottom tape.
continuously and sealed by cover tape.
Sprocket hole Sprocket hole shall be located on the left hand side toward the direction of feed.
Spliced point The base tape and top tape have no spliced point.
The cover tape has no spliced point.
Cavity
There shall not be burr in the cavity.
-
Missing
Missing components number within 0.025% of the number per reel or 1 pc., whichever is greater,
components and are not continuous. The specified quantity per reel is kept.
number
Taping
7-2. Tape Strength
(1) Pull Strength
Paper tape
Plastic tape
Top tape
Bottom tape
Plastic tape
Cover tape
5N min.
5N min.
10N min.
(2) Peeling off force of Top tape・Cover tape
Speed of Peeling off
Paper tape
Peeling off force *
Plastic tape
* Minimum value is typical.
• Case of Paper tape
165 to 180 degree
Bottom tape
Top tape
F
300mm/min
0.1N to 0.6N
0.2N to 0.7N
• Case of Plastic tape
165 to 180 degree
Base tape
MURATA MFG.CO., LTD.
F
Cover tape
Plastic tape
Reference Only
Spec. No. JENF243A-9114F-01
P.6/10
7-3. Taping Condition
(1) Standard quantity per reel
Type
BLM21(except 21BD222SZ1L/21BD272SZ1L)
BLM21BD222SZ1L/BLM21BD272SZ1L
Quantity per 180mm reel
4000 pcs. / reel
3000 pcs. / reel
(2) There shall be leader-tape (cover 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. »
□□ OOOO ×××
(1) Factory Code
(2) Date
(3) Serial No.
(1)
(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
∗2) « Expression of RoHS marking »
ROHS – Y (△)
(1) RoHS regulation conformity parts.
(2) MURATA classification number
(1) (2)
(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)
7-4. 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.
MURATA MFG.CO., LTD.
Spec. No. JENF243A-9114F-01
Reference Only
P.7/10
8. ! Caution
8-1. Rating
Do not use products beyond the Operating Temperature Range and Rated Current.
8-2. 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.
8-3. Fail Safe
Be sure to provide an appropriate fail-safe function on your product to prevent from a second damage
that may be caused by the abnormal function or the failure of our products.
8-4. 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 (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. Notice
This product is designed for solder mounting.
Please consult us in advance for applying other mounting method such as conductive adhesive.
9-1. Land pattern designing
• Standard land dimensions
< BLM21 series(except BLM21PG/BLM21S type) >
Chip Ferrite Bead
c
a
Solder Resist
b
Pattern
Soldering
Flow
Reflow
a
1.1
1.2
b
3.5
2.4
c
0.95
1.25
(in mm)
< For BLM21PG/S type >
Chip Ferrite Bead
Rated
Current
(A)
1.5
2
BLM21PG
3~4
6
BLM21S
1~8.5
Type
c
d
a
b
Land pad thickness
and dimension d
18µm
35µm
70µm
1.25
1.25
1.25
1.25
1.25
1.25
2.4
1.25
1.25
6.4
3.3
1.65
6.8
3.4
(in mm)
Solder Resist
Pattern
Soldering
Flow
Reflow
a
1.1
1.2
b
3.5
2.4
c
0.95
1.25
(in mm)
*The excessive heat by land pads may cause
deterioration at joint of products with substrate.
MURATA MFG.CO., LTD.
Reference Only
Spec. No. JENF243A-9114F-01
P.8/10
9-2. Soldering Conditions
Products can be applied to reflow and flow soldering.
(1) Flux,Solder
Flux
Use rosin-based flux, but not highly acidic flux (with chlorine content exceeding 0.2(wt)%. )
Do not use water-soluble flux.
Solder
Use Sn-3.0Ag-0.5Cu solder
Standard thickness of solder paste : 100 µm to 200 μm
(2) Soldering conditions
• Pre-heating should be in such a way that the temperature difference between solder and ferrite surface is limited
to 150℃ max. Also cooling into solvent after soldering should be in such a way that the temperature difference
is limited to 100℃ 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.
(3) soldering profile
□Flow
Temp.
(℃)
265℃±3℃
250℃
Limit Profile
150
Heating Time
60s min.
Time. (s)
Standard Profile
150℃、60s min.
250℃、4~6s
2 times
Pre-heating
Heating
Cycle of flow
Standard Profile
Limit Profile
265℃±3℃、5s max.
2 times
□Reflow soldering profile
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
Standard Profile
150~180°C 、90s±30s
above 220°C、30s~60s
245±3°C
2 times
Time. (s)
Limit Profile
above 230°C、60s max.
260°C,10s
2 times
MURATA MFG.CO., LTD.
Reference Only
Spec. No. JENF243A-9114F-01
P.9/10
9-3. Reworking with soldering iron
• Pre-heating: 150°C, 1 min
• Tip temperature: 350°C max.
• Soldering time : 3(+1,-0) seconds.
• Soldering iron output: 80W max.
• Tip diameter:φ3mm max.
• Times : 2times max.
Note :Do not directly touch the products with the tip of the soldering iron in order to prevent the crack
on the ferrite material due to the thermal shock.
9-4. 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.
9-5. 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
b
〈 Poor example 〉
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
MURATA MFG.CO., LTD.
Spec. No. JENF243A-9114F-01
Reference Only
P.10/10
9-6. 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.
9-7. 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.
9-8. Resin coating
The impedance value may change and/or it may affect on the product's performance due to high cure-stress of
resin to be used for coating / molding products. So please pay your careful attention when you select resin. In
prior to use, please make the reliability evaluation with the product mounted in your application set.
9-9. Cleaning
Excessive ultrasonic oscillation during cleaning can cause the PCBs to resonate, resulting in cracked chips or
broken solder joints. Before starting your production process, test your cleaning equipment / process to insure
it does not degrade this product.
9-10. 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
9-11.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.
10.
!
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 agreed 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.