SER1408-301MED

Power Inductor (SMD), 300 nH, 42 A, Shielded, 43.2 A, SER1400 Series

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Manufacturer: COILCRAFT
Product type: SMD Power Inductors
Inductance:300nH; RMS Current (Irms):42A; Inductor Construction:Shielded; Saturation Current (Isat):43.2A; Product Range:SER1400 Series; Power Inductor Case:15.24mm x 6.88mm x 8.26
Inductance: 300nH
Product Range: SER1400 Series
Product Width: 6.88mm
Product Height: 8.26mm
Product Length: 15.24mm
DC Resistance Max: 550µohm
RMS Current (Irms): 42A
Inductance Tolerance: ± 20%
Inductor Construction: Shielded
Saturation Current (Isat): 43.2A

Delivery and price
Units per pack	1
Price	1.4 €
Current stock	10+
Lead time	7 days

Datasheet

Document 609-1 

## **Shielded Power Inductors – SER1400** 

- Designed for high current power supply applications 

- Flat wire windings provide exceptionally low DCR 

- Specially formed terminations provide small footprint 

- I sat ratings as high as 105.9 A! 

- Other inductance, DCR, height combinations are possible 

**Designer’s Kit C427** contains 3 each of all values **Core material** Ferrite 

**Environment** RoHS compliant, halogen free 

**Terminations** RoHS compliant tin-silver over copper. Other terminations available at additional cost. 

**Ambient temperature** –40°C to +125°C with I rms current, +125°C to +165°C with derated current 

**Storage temperature** Component: –40°C to +125°C. Packaging: –40°C to +80°C 

**Resistance to soldering heat** Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles **Moisture Sensitivity Level (MSL)** 1 (unlimited floor life at <30°C / 85% relative humidity) 

**Failures in Time (FIT) / Mean Time Between Failures (MTBF)** 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 **PCB washing** Only pure water or alcohol recommended 

## **High Isat for high peak current applications** 

|||||**SRF**||**Isat(A)**5|**Irms**|**Irms**|**rms(A)**6||
|---|---|---|---|---|---|---|---|---|---|---|
|**Inductance**2||**DCR typ**3|**DCR max**3|**typ**4|**10%**|**20%**|**30%**|**20°C**|**40°C**|**Height max**|
|**Part number**1|**±20%(µH)**|**(mOhms)**|**(mOhms)**|**(MHz)**|**drop**|**drop**|**drop**|**rise**|**rise**|**(inches / mm)**|
|SER1412-301ME_|SER1412-301ME_<br>0.30|1.30|1.43|154|87.0|92.8|105.9|30|37|0.498 / 12,66|
|SER1412-501ME_|SER1412-501ME_<br>0.50|1.30|1.43|122|56.1|59.3|62.5|30|37|0.498 / 12,66|
|SER1412-681ME_|SER1412-681ME_<br>0.68|1.30|1.43|100|41.2|43.5|45.8|30|37|0.498 / 12,66|
|SER1412-102ME_|SER1412-102ME_<br>1.0|1.30|1.43|78|28.9|31.0|32.2|30|37|0.498 / 12,66|
|SER1412-152ME_|SER1412-152ME_<br>1.5|1.30|1.43|62|21.8|23.6|24.6|30|37|0.498 / 12,66|
|SER1412-202ME_|SER1412-202ME_<br>2.0|1.30|1.43|50|16.9|18.5|19.4|30|37|0.498 / 12,66|
|SER1412-362ME_|SER1412-362ME_<br>3.6|1.30|1.43|35|9.6|11.2|12.1|30|37|0.498 / 12,66|



## **Low DCR for high average current applications** 

|||**DCR**|**DCR**|**SRF**||**Isat(A)**5|**Irms**|**Irms**|**rms(A)**6||
|---|---|---|---|---|---|---|---|---|---|---|
|**Inductance**2||**typ**3|**max**3|**typ**4|**10%**|**20%**|**30%**|**20°C**|**40°C**|**Height max**|
|**Part number**1|**±20%(µH)**|**(mOhms)**|**(mOhms)**|**(MHz)**|**drop**|**drop**|**drop**|**rise**|**rise**|**(inches / mm)**|
|SER1408-301ME_|SER1408-301ME_<br>0.30|0.48|0.55|140|43.2|49.6|53.0|38|42|0.325 / 8,26|
|SER1408-501ME_|SER1408-501ME_<br>0.50|0.48|0.55|83|25.8|29.6|31.4|38|42|0.325 / 8,26|
|SER1408-681ME_|SER1408-681ME_<br>0.68|0.48|0.55|63|18.8|21.6|23.2|38|42|0.325 / 8,26|
|SER1408-102ME_|SER1408-102ME_<br>1.0|0.48|0.55|48|12.1|14.2|16.1|38|42|0.325 / 8,26|
|SER1410-152ME_|SER1410-152ME_<br>1.5|0.90|0.99|53|16.8|18.9|20.3|33|39|0.416 / 10,56|
|SER1410-202ME_|SER1410-202ME_<br>2.0|0.90|0.99|45|12.1|13.9|15.0|33|39|0.416 / 10,56|



1. When ordering, please specify **termination** and **packaging** codes: | ~~————_~~ 

**SER1410-202MED** 

**Termination: E** = RoHS compliant tin-silver over copper. Special order: **T** = RoHS tin-silver-copper 

      - (95.5/4/0.5) or **S** = non-RoHS tin-lead (63/37). 

- **Packaging: D** = 13″ machine-ready reel. EIA-481 embossed plastic tape. 

   - **B** = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 

2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4263B LCR meter or equivalent. 

3. DCR measured on a Keithley 580 micro-ohmmeter or equivalent. 

4. SRF measured using an Agilent/HP 4395A network analyzer and an Agilent/HP 16193A test fixture. 

5. DC current at which the inductance drops the specified amount from its value without current. 

6. Current that causes the specified temperature rise from 25°C ambient. 

7. Electrical specifications at 25°C. 

Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 

Document 609-1 Revised 04/14/11 

Document 609-2 

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## **Shielded Power Inductors – SER1400 Series** 

## **Irms Derating** 

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**----- Start of picture text -----**<br>
Part number 0.348<br>8,83<br>SER14XX-XXX 0.271 ±0.01 C L 0.355<br>CCI XXXX 6,88 ±0,256<br>0.221 9,02<br>5,60<br>Internal code 0.130<br>3,30<br>Recommended<br>Land Pattern<br>0.60 0.473<br>15,24 [max] 12,00 max<br>Height<br>(see table)<br>0.004/0,102<br>0.100 0.397<br>2,54 10,09 max<br>0.218<br>min<br>5,53<br>Dimensions are in [inches ]<br>mm<br>**----- End of picture text -----**<br>


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120<br>110<br>100<br>90<br>80<br>70<br>60<br>50<br>40<br>30<br>20<br>10<br>0<br>-40 -20 0 20 40 60 80 100 120 140 160 180<br>Ambient temperature (°C)<br>Irms<br>Percent of rated<br>25°C<br>**----- End of picture text -----**<br>


||**Height max**||
|---|---|---|
|**Series**|**(inches/ mm)**|**Weight**|
|SER1408|0.325 / 8,26|3.5 – 3.8 g|
|SER1410|0.416 / 10,56|4.8 – 5.2 g|
|SER1412|0.498 / 12,66|6.1 – 6.7 g|



## **Packaging** 

**SER1408** 300/13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 20 mm  pocket spacing, 8.6 mm pocket depth **SER1410** 250/13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 20 mm  pocket spacing, 10.8 mm pocket depth **SER1412** 250/13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 20 mm  pocket spacing, 12.8 mm pocket depth 

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Document 609-2 Revised 04/14/11 

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Document 609-3 

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## **Shielded Power Inductors – SER1400 Series** 

## **L vs Frequency (High Isat Versions)** 

## **L vs Current (High Isat Versions)** 

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10<br>3.6 µH<br>2.0 µH<br>1.5 µH<br>1.2 µH<br>1.0 µH<br>1 0.68 µH<br>0.50 µH<br>0.30 µH<br>0.1<br>0.1 1 10 100<br>Frequency (MHz)<br>Inductance (µH)<br>**----- End of picture text -----**<br>


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10<br>3.6 µH<br>2.0 µH<br>1.5 µH<br>1 1.2 µH<br>1.0 µH<br>0.68 µH<br>0.50 µH<br>0.30 µH<br>0.1<br>0.1 1 10 100<br>Inductance (µH)<br>**----- End of picture text -----**<br>


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Current (A)<br>**----- End of picture text -----**<br>


## **L vs Frequency (Low DCR Versions)** 

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10<br>2.0 µH<br>1.5 µH<br>1.0 µH<br>1<br>0.68 µH<br>0.50 µH<br>0.30 µH<br>0.1<br>0.1 1 10 100<br>Frequency (MHz)<br>Inductance (µH)<br>**----- End of picture text -----**<br>


## **L vs Current (Low DCR Versions)** 

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**----- Start of picture text -----**<br>
10<br>2.0 µH<br>1.5 µH<br>1<br>1.0 µH<br>0.68 µH<br>0.50 µH<br>0.30 µH<br>0.1<br>0.1 1 10 100<br>Current (A)<br>Inductance (µH)<br>**----- End of picture text -----**<br>


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Document 609-3 Revised 04/14/11

Updated at March 10, 2026

Coilcraft is a globally recognized leader in the design and manufacture of high-performance magnetic components. Renowned for its engineering excellence, reliable delivery, and stringent quality standards, the company provides essential solutions for a wide array of demanding applications, including signal processing, RF, power management, and timing circuits. Our comprehensive portfolio of Coilcraft components is centered on their industry-leading inductor technologies. This encompasses a vast selection of high-efficiency power inductors designed to optimize modern power supply architectures, alongside precision RF inductors engineered to deliver exceptional stability and performance in high-frequency communications and wireless applications. To support complete electromagnetic compatibility and comprehensive circuit design, we also offer a variety of Coilcraft's specialized magnetic solutions. This includes robust common mode chokes and filters for effective EMC and RFI suppression, current sensing transformers, and a selection of inductor kits and assortments that provide design engineers with versatile options for rapid prototyping and development.

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