INDUCTORS
Inductors for power circuits
Cl
Pb
Br
Thin-film metal magnetic material
REACH Halogen Lead
RoHS
SVHC-Free Free Free
TFM-ALMA series (for automotive)
AEC-Q200
TFM322512ALMA type
FEATURES
By using metal magnetic material with high Saturation magnetic flux density the excellent DC bias characteristics needed for inductors
for power circuits can be achieved.
With the same product shape and terminal structure as general chip parts it has excellent mounting stability characteristics and can also
be mounted to general-purpose land patterns.
By using a closed magnetic circuit structure leakage flux is minimized.
Compliant with AEC-Q200
APPLICATION
ADAS ECU, in-Vehicle camera (view camera, sensing camera), radar, meter cluster, automotive communication module
Other power supply circuit uses
PART NUMBER CONSTRUCTION
TFM 322512 ALM A 1R0 M T AA
LWH dimensions Inductance
Characteristic Automotive Inductance
Series name Packaging style Internal code
type use tolerance
3.22.51.2 mm (H)
CHARACTERISTICS SPECIFICATION TABLE
L L measuring DC resistance Rated current Rated Part No.
frequency voltage
Isat Itemp
(H) Tolerance (MHz) (m )max. (m )typ. (A)max. (A)typ. (A)max. (A)typ. (V)max.
1.0 20% 1 37 30 4.6 5.1 4.0 4.4 20 TFM322512ALMA1R0MTAA
1.5 20% 1 57 46 4.0 4.5 3.2 3.5 20 TFM322512ALMA1R5MTAA
2.2 20% 1 77 64 3.3 3.6 2.7 3.0 20 TFM322512ALMA2R2MTAA
3.3 20% 1 113 97 2.5 2.8 2.3 2.5 20 TFM322512ALMA3R3MTAA
4.7 20% 1 151 127 2.2 2.5 1.9 2.1 20 TFM322512ALMA4R7MTAA
6.8 20% 1 260 220 1.8 2.1 1.4 1.6 20 TFM322512ALMA6R8MTAA
10 20% 1 360 305 1.6 1.8 1.2 1.4 20 TFM322512ALMA100MTAA
Rated current: smaller value of either Isat or Itemp.
Isat: When based on the inductance change rate (30% below the initial L value)
Itemp: When based on the temperature increase (temperature increase of 40C by self heating)
Please refer to the graph of Rated current vs. temperature characteristics (derating) about the rating current at 85C or more in temperature of the product.
Measurement equipment
Measurement item Product No. Manufacturer
L 4294A Keysight Technologies
DC resistance Digital Milliohm Meter
Rated current Isat 4285A+42841A+42842C Keysight Technologies
Equivalent measurement equipment may be used.
TEMPERATURE RANGE, INDIVIDUAL WEIGHT
Operating temperature range Storage temperature range Individual weight
55 to +150 C 55 to +150 C 0.052 g
Operating temperature range includes self-temperature rise.
The storage temperature range is for after the assembly.
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
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Please note that the contents may change without any prior notice due to reasons such as upgrading.
20190918
inductor_automotive_power_tfm322512alma_en.fmINDUCTORS
TFM322512ALMA type
L FREQUENCY CHARACTERISTICS
100
100
6R8
4R7
10
3R3
2R2
1R5
1R0
1
0.1
0.1 1 10 100
Frequency(MHz)
Measurement equipment
Product No. Manufacturer
4294A Keysight Technologies
Equivalent measurement equipment may be used.
INDUCTANCE VS. DC BIAS CHARACTERISTICS
12
10
8
6
100
6R8
4
4R7
3R3
2
2R2
1R5 1R0
0
0246 8
DC current(A)
Measurement equipment
Product No. Manufacturer
4285A+42841A+42842C Keysight Technologies
Equivalent measurement equipment may be used.
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
(2/4)
Please note that the contents may change without any prior notice due to reasons such as upgrading.
20190918
inductor_automotive_power_tfm322512alma_en.fm
( )
Inductance H Inductance(H)