AMRU00040412R47MA1

## **Power Inductor** 

## **Automotive Grade AMRU Series** 

## **Overview** 

Power inductors are passive electronic components used in various circuits to store energy in a magnetic field when electrical current flows through them. They are critical in filtering, energy storage, and noise suppression in power electronic systems. 

They are designed to handle higher currents and are optimized for minimal power loss and thermal efficiency. 

## **Benefits** 

1. Automotive grade available 

2. Energy Storage, Efficiently stores and transfers energy in DC-DC converters and power supplies. 

3. High Current Handling, Supports high current capacity with minimal losses, ensuring thermal stability. 

4. Compact and Efficient Design, Advanced materials and construction enable miniaturization without sacrificing performance, ideal for space-constrained designs. 

## **Applications** 

1. Automotive Systems for ADAS, infotainment. 

2. Industrial Equipment: Robotics, power tools, industrial automation, and IoT devices. 

3. DC-DC converters, inverters, and battery management systems. 

4. Base stations, 5G infrastructure, and signal processing systems. 

5. Consumer Electronics: Smartphones, laptops, tablets, wearable devices, and gaming consoles. 

## **Product Information** 

|**Series**|**L (mm)**|**W(mm)**|**T (mm)**|**Inductance (**µ**H)**|
|---|---|---|---|---|
|AMRU|4.2|4.7|1.2|0.22 ~ 47|
||4.2|4.7|1.8||
||6.8|7.3|2.8||
||10.2|11.6|3.8||
||12.8|13.8|6.5||



## **AMRU00040412 Series Specification** 

## AEC-Q200 

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1 Scope This specification applies to large current and low loss SMD power inductor.<br>: 2 Part numbering<br>A MRU □□ □□□□□□ □□□ □ □□<br>Internal code<br>[ L Tolerance<br>Inductance<br>Dimension<br>Control code<br>| SEL Prouduct series<br>Grade<br>, 3 Temperature rating<br>Operating Temperature: -40°C to 125°C.<br>Storage Temperature:  (on tape & reel): -20°C to +40°C; 75% RH max.<br>: 4 Marking<br>| XX Marking : 1R0<br>**----- End of picture text -----**<br>


## ~~__|~~ 5 **Standard testing condition** 

||Unless otherwise specified|Incase ofdoubt|
|---|---|---|
|Temperature|OrdinaryTemperature(15 to 35°C)|20 to 30°C|
|Humidity|OrdinaryHumidity(25 to 85%RH)|50 to 80 %RH|



## **AMRU00040412 Series Specification** AEC-Q200 ~~es~~ 

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__| 6 Configuration and dimensions<br>B F<br>Dimensions in mm<br>Type 040412<br>A 4.2 ± 0.25<br>A D B 4.7 ± 0.25<br>C 1.2 Max<br>D 1.5 ± 0.3<br>[ o k<br>F 1.0 ± 0.3<br>C c Size Code Net weight(grms)<br>040412 0.12(typ.)<br>i td —<br>**----- End of picture text -----**<br>


## ~~__|~~ 7 **Electrical characteristics** 

|**Part number**|**(uH)**<br>**Inductance**|**(±%)**<br>**Tolerance**|**Test Freq.**|**Typ.**<br>**Irms (A)**|**Isat (A)**<br>**Typ.**|**RDC (mΩ)**<br>**Max.(Typ.)**|**Marking**|
|---|---|---|---|---|---|---|---|
|AMRU00040412R22MA1|0.22|20|100kHz,0.5V|8.5|15|12(11)|R22|
|AMRU00040412R47MA1|0.47|20|100kHz,0.5V|5|9|20(18)|R47|
|AMRU000404121R0MA1|1|20|100kHz,0.5V|4|6|43(39)|1R0|



## **Note:** 

1. Operating temperature range -40°C to 125°C. 

2. Isat for Inductance drop 30% from its value without current. 

3. Irms for a 40°C temperature rise from 25°C ambient. 

4. The part temperature (ambient + temp rise) should not exceed 125°C under worst case operating conditions. Circuit design 125°C under worst case operating conditions. Component placement, PCB trace size and thickness, airflow  and other cooling provisions all affect the part temperature. Part temperature should be verified in the end application. 

5. Absolute maximum voltage 30V DC. (Based on test method, it may not the sameunder different application, it is recommended to verify first.) 

## **AMRU00040412 Series Specification** AEC-Q200 ~~EC~~ 

8 **AMRU00040412 Series 8.1 Construction** 

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## **8.2 Material List** 

|Item|Part|Description|
|---|---|---|
|1|Magnetic core|Magnetic metal powder|
|2|Coil|Enameled copper wire|
|3|Terminals|Copper based terminal|



## **AMRU00040412 Series Specification** 

## AEC-Q200 

## ~~__|~~ 9 **Reliability test items** 

|**1-1.Mechanical Performance**|
|---|
|**No**<br>**Item**<br>**Specification**<br>1-1-1 Board Flex<br>The forces applied on the right Refer to AEC-Q200-005<br>conditions must not damage<br>Test device shall be soldered on the substrate<br>the terminal electrode and the<br>Substrate Dimension: 100x40x1.6mm<br>ferrite<br>Deflection: 2.0mm<br>KeepingTime: 60sec<br>1-1-2 Resistance to Soldering Heat<br>Appearance: No damage<br>Refer to MIL-STD-202 Method 210<br>Inductance change shall be<br>Solder Composition: Sn/Ag3.0/Cu0.5(Pb-Free)<br>within ±10%.<br>Solder Temperature: 260±5°C<br>Immersion Time: 10±1sec<br>1-1-3 Solder ability<br>The electrodes shall be at<br>Refer to J-STD-002<br>least 95% covered with new<br>Pre-heating: 150°C, 1min<br>solder coating<br>Solder Composition: Sn/Ag3.0/Cu0.5(Pb-Free)<br>Solder Temperature: 245±5°C(Pb-Free)<br>Immersion Time: 4±1sec<br>1-1-4 Terminal Strength Test<br>Appearance: No damage<br>Refer AEC-Q200-006<br>Soldered on PCB for testing as fig.<br>Force : 1.8kg<br>KeepingTime: 60 seconds.<br>1-1-5 Resistance to Solvent<br>There must be no change in<br>Refer to MIL-STD-202 Method 215<br>appearance or obliteration of<br>Inductors must withstand 6 mimutes of alcohol or water.<br>marking<br>Sample Size : 15pcs<br>1-1-6 Vibration<br>Appearance: No damage<br>Refer MIL-STD-202 Method 204<br>Inductance change shall be<br>Vibration waveform: Sine waveform<br>within ±10%.<br>Vibration frequency: 10Hz~2000Hz<br>Vibration acceleration: 5g<br>Sweep rate: 0.764386otcave/minute<br>Duration of test: 12 cycles each of 3 orientations,<br>20 minutes for each cycle<br>Vibration axes: X,Y & Z<br>**Test Method**<br>~~aGC~~<br>~~ee~~<br>~~To~~|
|**1-2.Environmental Performance**|
|**No**<br>**Item**<br>**Specification**<br>1-2-1 Temperature Cycle<br>Appearance: No damage<br>Refer to JESD Method JA-104<br>Inductance change shall be<br>Total cycles: 1000 cycles<br>within±20%<br>Temperature Cycling Test Conditions : -40 to 125°C<br>-40°C  Soak Mode Condition :  30 minutes<br>125°C  Soak Mode Condition :  30 minutes<br>Measured after exposure in the room condition for 24hrs<br>**Test Method**|
|1-2-2 Biased Humidity Resistance<br>Refer to MIL-STD-202 Method 103<br>Temperature: 85±2°C<br>Relative Humidity:85% / Time: 1000hrs<br>Measured after exposure in the room condition for 24hrs|
|1-2-3 High<br>Refer to MIL-STD-202 Method 108<br>Temperature Exposure<br>Temperature: 125±3°C / Relative Humidity: 0%<br>(Storage)<br>Applied Current: Rated Current /Time: 1000hrs<br>Measured after exposure in the room condition for 24hrs|
|1-2-4 Operational Life<br>Refer to MIL-PRF-27<br>Temperature: 85±3°C<br>Applied Current : Rated Current<br>Time: 1000hrs<br>Measured after exposure in the room condition for 24hrs|



## **AMRU00040412 Series Specification** 

## AEC-Q200 

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__| 10 Recommended IR reflow profile<br>**----- End of picture text -----**<br>


|oC||Ramp-up|Ramp-up|||Pre-heating|Pre-heating|Pre-heating|Pre-heating|||Reflo|Reflo||||Cooling|||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|300||||||||||||Peak: 260||||||||
|||||||||||||||||||||
||217°C|||||||||||||||||||
||150°C||||||||||||||||6°C/ sec|C/ sec||
|||||||||||||||||||||
|100||||||||||||||||||||
|0|||3°C/sec max|||||||||||||||||
|0||50|100||||150||200|||250|||||300<br>350||sec|
||||||||Reflow||profile|||||||||||
|Lead-Free(LF)|||||||||||||||||Refer to J-STD-020F|Refer to J-STD-020F||
|Item||Ramp-up||||Pre-heating|||Reflow||||||Peak Temp.||||Cooling|
|Temp. scope||R.T. ~150|R.T. ~150°C||150°C~200°C||||217°C|||||||260±5°C||Peak Temp.<br>150°C||
|Time spec||-||||60~120 sec|||60~150 sec||||||20~40 sec||||-|



Note: 

1. IR reflow times: within 3 times. 

2. Nitrogen adopted is recommended while in IR reflow. 

## **AMRU00040412 Series Specification** 

## AEC-Q200 

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__| 11 Packaging<br>11.1 Packaging-cover tape<br>The force for tearing off cover tape is 10 to 130 grams.<br>165° to 180°<br>Top cover tape<br>NS \<br>\_<br>Base tape<br>11.2 Packaging quantity<br>Type pcs/reel<br>040412 2000<br>a<br>11.3 Reel dimensions<br>A C B<br>1 @y<br>D<br>Dimensions in mm<br>Type A B C D<br>040412 330 100 13 13<br>a<br>**----- End of picture text -----**<br>


## **AMRU00040412 Series Specification** 

## AEC-Q200 

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__| 11 Packaging<br>11.4 Tape dimensions in mm<br>**----- End of picture text -----**<br>


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P0 P2<br>D<br>E<br>W<br>B0<br>K0 P<br>ab =)<br>Pulling direction<br>A0<br>Type A0 B0 K0 D E W P P0 P2<br>040412 4.5 5.0 1.5 1.5 1.75 12 8 4 2<br>———<br>__| 12 Recommended pattern<br>C<br>Dimensions in mm<br>A Type A B C<br>040412 2.5 2.2 5.2<br>U l ><br>B<br>__| 13 Note<br>1. Please make sure that your product has been evaluated and confirmed against your specifications<br>when our product is mounted to your product.<br>1R0<br>**----- End of picture text -----**<br>


2. Don’t design/ mount any components in contact with this product. 

3. The moisture sensitivity level (MSL) of products is classified as level 1. 

4. Shelf life: 1 years from the date of shipment. 

## **AMRU00040412 Series Specification** 

## AEC-Q200 

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__| 14 Graph<br>AMRU00040412R22MA1 AMRU00040412R47MA1<br>0.30 100 0.60 100<br>Inductance(μH) Inductance(μH)<br>Temp Rise (°C) Temp Rise (°C)<br>0.24 80 0.48 80<br>= ny  a<br>0.18 60 0.36 60<br>=—507 400 e e ae<br>0.12 fava = 40 0.24 a An 40<br>0.06 Sane 4neee 20 0.12 nA 20<br>0.00 PERCCEETE 0 0.00 et 0<br>0 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12<br>DC Current(A) DC Current(A)<br>AMRU000404121R0MA1<br>1.5 100<br>Inductance(μH)<br>Temp Rise (°C)<br>1.2 S TO 80<br>0.9 60<br>a an<br>0.6 CoE So 40<br>0.3 20<br>ae 6Gnh<br>0.0 Ae 0<br>0 1 2 3 4 5 6 7 8<br>DC Current(A)<br>) ℃ C)°<br>Inductance(μH) Temp Rise( Inductance(μH) Temp Rise(<br>Inductance(μH) C)Temp Rise(°<br>**----- End of picture text -----**<br>