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SER1052-432MLC
Power Inductor (SMD), 4.3 µH, 12 A, Shielded, 6.4 A, SER1052 Series
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: COILCRAFT
- Product type: SMD Power Inductors
- Inductance:4.3µH; RMS Current (Irms):12A; Inductor Construction:Shielded; Saturation Current (Isat):6.4A; Product Range:SER1052 Series; Power Inductor Case:11mm x 10.2mm x 5.2mm; DC
- Inductance: 4.3µH
- Product Range: SER1052 Series
- Product Width: 10.2mm
- Product Height: 5.2mm
- Product Length: 11mm
- DC Resistance Max: 7500µohm
- RMS Current (Irms): 12A
- Power Inductor Case: 11mm x 10.2mm x 5.2mm
- Inductance Tolerance: ± 20%
- Inductor Construction: Shielded
- Inductor Case / Package: -
- Saturation Current (Isat): 6.4A
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 2.87 € |
| Current stock | 200+ |
| Lead time | 7 days |
Datasheet
Web Sample Tools & Support page & buy software & FAQ
Document 535 -1
AEC Q200 +85°C
## **– Shielded Power Inductors SER1052**
- High current, low DCR shielded power inductors
- 10.2 × 11 mm base; only 5.2 mm tall
**Designer’s Kit C421** contains 3 of each value **Core and winding loss** See www.coilcraft.com/coreloss **Core material** Ferrite
**Terminations** RoHS compliant tin-silver-copper over tin over nickel over phos-bronze (pins 1 and 2); matte tin over nickel over phos bronze (pin 3). Other terminations available at additional cost. **Weight** 1.6 g
**Ambient temperature** –40°C to +85°C with (40°C rise) I rms current. **Maximum part temperature** +125°C (ambient + temp rise). Derating. **Storage temperature** Component: –40°C to +125°C. Tape and reel 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)
**Packaging** 200/7″ reel; 700/13″ reel Plastic tape: 24 mm wide, 0.4 mm thick, 16 mm pocket spacing, 5.45 mm pocket depth **PCB washing** Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf.
|**Part number**1<br>SER1052-801ML_<br>SER1052-102ML_|**Inductance DCR**<br>**±20%**2<br>**max**3<br>**(µH)**<br>**(mOhm) **<br>SER1052-801ML_<br>0.80<br>4.0<br>SER1052-102ML_<br>1.0<br>4.0|**Inductance DCR**<br>**±20%**2<br>**max**3<br>**(µH)**<br>**(mOhm) **<br>SER1052-801ML_<br>0.80<br>4.0<br>SER1052-102ML_<br>1.0<br>4.0|**SRF**<br>**typ**4<br> **(MHz)**<br>100<br>95|**10%**<br>**drop dro**<br>24.9<br>16.5|**Isat(A)**5<br>**10% 20%**<br>**drop dro**<br>24.9<br>25.2<br>16.5<br>17.0|**Irms(A)**6<br>**30% 20°C 40°C**<br>**drop**<br>**rise**<br>**rise**<br>25.6<br>12.5 16.3<br>17.5<br>12.5 16.3|**Irms(A)**6<br>**30% 20°C 40°C**<br>**drop**<br>**rise**<br>**rise**<br>25.6<br>12.5 16.3<br>17.5<br>12.5 16.3|**Irms(A)**6<br>**30% 20°C 40°C**<br>**drop**<br>**rise**<br>**rise**<br>25.6<br>12.5 16.3<br>17.5<br>12.5 16.3|
|---|---|---|---|---|---|---|---|---|
|SER1052-122ML_|SER1052-122ML_<br>1.2|6.0|91|20.5|20.5<br>21.0|21.3|11.0 15.0|11.0 15.0|
|SER1052-132ML_<br>SER1052-152ML_|SER1052-132ML_<br>1.3<br>1.5|4.0<br>4.0|81<br>75|12.9<br>13.5|12.9<br>16.8<br>13.5<br>14.0|17.2<br>14.5|12.5 16.3<br>11.0 15.0|12.5 16.3<br>11.0 15.0|
|SER1052-182ML_|SER1052-182ML_<br>1.8|6.0|70|13.3|13.3<br>13.8|14.3|11.0 15.0|11.0 15.0|
|SER1052-202ML_|SER1052-202ML_<br>2.0|9.0|65|15.3|15.3<br>15.8|16.2|8.5 11.5|8.5 11.5|
|SER1052-222ML_|SER1052-222ML_<br>2.2|4.0|58|8.9|8.9<br>9.6|10.0|12.5 16.3|12.5 16.3|
|SER1052-252ML_<br>SER1052-322ML_|SER1052-252ML_<br>2.5<br>3.2|7.5<br>6.0|55<br>53|11.4<br>7.3|11.4<br>11.8<br>7.3<br>7.8|12.1<br>8.5|9.0 12.0<br>11.0 15.0|9.0 12.0<br>11.0 15.0|
|SER1052-402ML_|SER1052-402ML_<br>4.0|9.0|47|8.3|8.3<br>8.5|8.8|8.5 11.5|8.5 11.5|
|SER1052-432ML_|SER1052-432ML_<br>4.3|7.5|44|6.4|6.4<br>6.8|7.0|9.0 12.0|9.0 12.0|
|SER1052-572ML_|SER1052-572ML_<br>5.7|9.0|35|5.4|5.4<br>5.8|6.0|8.5 11.5|8.5 11.5|
## 1. Please specify **termination** and **packaging** codes: ~~a~~ **SER1052-572MLD**
- **Termination: L** = RoHS compliant tin-silver-copper over tin over nickel over phos-bronze (pins 1 and 2); matte tin over nickel over phos bronze (pin 3). Special order:
- **T** = RoHS tin-silver-copper over copper (95.5/4/0.5) or **S** = non-RoHS tin-lead (63/37).
- **Packaging: C** = 7″ machine-ready reel. EIA-481 embossed plastic tape (200 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
- **B** = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
- **D** = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (700 parts per full reel)
2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A or equivalent.
3. DCR measured on a micro-ohmmeter.
4. SRF measured using an Agilent/HP 4395A network analyzer and an Agilent/HP 16193A test fixture.
5. DC current at 25°C that causes the specified inductance drop from its value without current. Click for temperature derating information.
6. Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Click for temperature derating information.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
## Document 535-1 Revised 06/14/21
**US** +1-847-639-6400 sales@coilcraft.com Document 535-1 Revised 06/14/21 **UK** +44-1236-730595 sales@coilcraft-europe.com © Coilcraft Inc. 2021 **Taiwan** +886-2-2264 3646 sales@coilcraft.com.tw This product may not be used in medical or high **China** +86-21-6218 8074 sales@coilcraft.com.cn risk applications without prior Coilcraft approval Specification subject to change without notice **Singapore** + 65-6484 8412 sales@coilcraft.com.sg Please check web site for latest information
Document 535-2
AEC Q200 +85°C
## **Shielded Power Inductors - SER1052 Series**
## **Typical L vs Frequency**
**==> picture [242 x 173] intentionally omitted <==**
**----- Start of picture text -----**<br>
7<br>6 5.7 µH<br>5<br>4<br>3.2 µH<br>3<br>2.0 µH<br>2<br>1.3 µH<br>1<br>0.8 µH<br>0<br>0.1 1 10 100<br>Frequency (MHz)<br>Inductance (µH)<br>**----- End of picture text -----**<br>
## **Typical L vs Current**
**==> picture [242 x 173] intentionally omitted <==**
**----- Start of picture text -----**<br>
7<br>6 5.7 µH<br>5<br>4<br>3.2 µH<br>3<br>2.0 µH<br>2<br>1.3 µH<br>1<br>0.8 µH<br>0<br>0.1 1 10 100<br>Current (A)<br>Inductance (µH)<br>**----- End of picture text -----**<br>
**==> picture [238 x 307] intentionally omitted <==**
**----- Start of picture text -----**<br>
Prior to 2012, parts may have<br>been marked differently<br>1<br>2<br>3<br>Terminal 3 is<br>for mounting<br>stability only.<br>Dimensions are in [inches ]<br>mm<br>**----- End of picture text -----**<br>
**==> picture [118 x 44] intentionally omitted <==**
Document 535-2 Revised 06/14/21
© Coilcraft Inc. 2021 This product may not be used in medical or high risk applications without prior Coilcraft approval Specification subject to change without notice Please check web site for latest information
**US** +1-847-639-6400 sales@coilcraft.com **UK** +44-1236-730595 sales@coilcraft-europe.com **Taiwan** +886-2-2264 3646 sales@coilcraft.com.tw **China** +86-21-6218 8074 sales@coilcraft.com.cn **Singapore** + 65-6484 8412 sales@coilcraft.com.sg
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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