1812LS-334XJLC

Wirewound Inductor, 330 µH, 22.5 ohm, 7 MHz, 100 mA, 1812 [4532 Metric], 1812LS Series

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Manufacturer: COILCRAFT
Product type: Wirewound Inductors
Inductance:330µH; Product Range:1812LS Series; DC Current Rating:100mA; High Frequency Inductor Case:1812 [4532 Metric]; Inductor Construction:Wirewound; DC Resistance Max:22.5ohm; Ind
Inductance: 330µH
Core Material: Ferrite
Product Range: 1812LS Series
Product Width: 3.81mm
Product Height: 3.43mm
Product Length: 4.95mm
DC Current Rating: 100mA
DC Resistance Max: 22.5ohm
Inductance Tolerance: ± 5%
Inductor Construction: Unshielded
Inductor Case / Package: 1812 [4532 Metric]
Self Resonant Frequency: 7MHz

Delivery and price
Units per pack	10
Price	1.28 €
Current stock	10+
Lead time	30 days

Datasheet

Web Sample Tools & Support page & buy software & FAQ 

Document 1486-1 

## **Wirewound Ferrite Beads 1812LS (4532)** 

- Higher performance than other surface mount ferrite beads in the market 

- High impedance across a wide bandwidth 

- Extremely low DCR for high current applications 

- Ferrite construction and heavy gauge wire for high current handling 

- Eliminates high frequency noise in power supplies or RF signal isolation applications 

||**Inductance**2|**Impedance t**|**edance typ (Ohms)**|**SRF typ**3|**DCR max**4|**Irms**5|
|---|---|---|---|---|---|---|
|**Part number**1|**±5%(µH)**|**1 MHz    10 MHz**||**(MHz)**|**(Ohms)**|**(mA)**|
|1812LS-123XJL_|12 @ 2.5 MHz|77.85|770.7|85|2.0|310|
|1812LS-153XJL_|15 @ 2.5 MHz|97.79|969.6|70|2.5|290|
|1812LS-183XJL_|18 @ 2.5 MHz|118.2|1201|52|2.8|270|
|1812LS-223XJL_|22 @ 2.5 MHz|140.2|1405|58|3.2|260|
|1812LS-273XJL_|27 @ 2.5 MHz|177.1|1826|46|3.6|240|
|1812LS-333XJL_|33 @ 2.5 MHz|211.5|2185|40|4.0|230|
|1812LS-393XJL_|39 @ 2.5 MHz|254.6|2729|30|4.5|210|
|1812LS-473XJL_|47 @ 2.5 MHz|301.1|3705|24|5.0|200|
|1812LS-563XJL_|56 @ 2.5 MHz|361.3|4917|20|5.5|190|
|1812LS-683XJL_|68 @ 2.5 MHz|422.5|7392|16|6.0|180|
|1812LS-823XJL_|82 @ 2.5 MHz|512.0|11,227|13.5|7.0|170|
|1812LS-104XJL_|100 @ 2.5 MHz|619.3|19,090|12.0|8.0|150|
|1812LS-124XJL_|120 @ 0.79 MHz|757.4|13,752|14.5|11.5|135|
|1812LS-154XJL_|150 @ 0.79 MHz|978.9|37,311|11.5|13.0|125|
|1812LS-184XJL_|180 @ 0.79 MHz|1175|191,219|9.3|14.2|120|
|1812LS-224XJL_|220 @ 0.79 MHz|1427|22,919|7.6|16.2|115|
|1812LS-274XJL_|270 @ 0.79 MHz|1742|29,599|8.3|20.5|105|
|1812LS-334XJL_|330 @ 0.79 MHz|2169|18,825|7.0|22.5|100|
|1812LS-394XJL_|390 @ 0.79 MHz|2558|8911|5.2|24.5|90|
|1812LS-474XJL_|470 @ 0.79 MHz|3125|8087|4.4|26.5|85|
|1812LS-564XJL_|560 @ 0.79 MHz|3858|2196|2.8|28.5|75|
|1812LS-684XJL_|680 @ 0.79 MHz|4599|3257|2.3|38.0|60|
|1812LS-824XJL_|820 @ 0.79 MHz|6156|1747|2.1|41.0|55|
|1812LS-105XJL_|1000 @ 0.79 MHz|7167|2265|1.9|44.0|50|



## 1. When ordering, please specify **termination** and **packaging** codes: | ~~———_~~ **1812LS-105XJLC** 

- **Termination: L** = RoHS compliant silver-palladium-platinum-glass frit. 

   - **R** = RoHS compliant matte tin over nickel over silverplatinum-glass frit. 

   - Special order: **T** = RoHS tin-silver-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 (600 per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge). 

   - **D** = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (2200 per full reel). 

   2. Inductance at 2.5 MHz measured using an Agilent/HP 4286A and a Coilcraft SMD-A fixture with Coilcraft-provided correlation pieces. Inductance at 0.79 MHz measured using an Agilent/HP 4192A and Coilcraft SMD-B test fixture. 

   3. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture. 

   4. DCR measured on a Cambridge Technology micro-ohmmeter. 

   5. Current that causes a 15°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. 

   6. Electrical specifications at 25°C. 

   - Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Visit http://www.coilcraft.com/colrcode.cfm for part marking data. 

- **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. 

**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 

Document 1486-1 Revised 12/02/21 

© 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. 

Document 1486-2 

**==> picture [90 x 42] intentionally omitted <==**

## **1812LS Wirewound Ferrite Beads** 

## **Typical L vs Current** 

## **Typical Impedance vs Current** 

**==> picture [245 x 393] intentionally omitted <==**

**----- Start of picture text -----**<br>
10000<br>1000 µH<br>1000<br>330 µH<br>100 µH<br>100<br>33 µH<br>12 µH<br>10<br>1 10 100 1000<br>DC Current (mA)<br>B C<br>H<br>overall D<br>F Pick andplace I<br>material<br>A G J<br>F I<br>E<br>terminal Terminal wraparound: Recommended<br>approx 0.015/0,38 both ends<br>Land Pattern<br> A  B  C  D<br> max  max  max  ref  E  F  G  H  I J<br> 0.195 0.150 0.135 0.070 0.100 0.025 0.128 0.120 0.045 0.118 inches<br> 4,95  3,81  3,43  1,78  2,54  0,64  3,25  3,05  1,14  3,00 mm<br>Note:  Height dimension (C) is before optional solder application. For maximum<br>height dimension including solder, add 0.006 in / 0,152 mm.<br>Inductance (µH)<br>**----- End of picture text -----**<br>


**==> picture [242 x 185] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000<br>1000 µH 330 µH<br>33 µH<br>100 100 µH 12 µH<br>10<br>1.0<br>0.1<br>0.01<br>1 10 100 1000<br>Frequency (MHz)<br>Impedance (kOhms)<br>**----- End of picture text -----**<br>


**Designer’s Kit C314** contains 10 of each value 

**Core material** Ferrite 

**Terminations** RoHS compliant silver-palladium-platinum-glass frit. Other terminations available at additional cost. 

**Weight** 142 – 171 mg 

**Ambient temperature** –40°C to +85°C with I rms current **Maximum part temperature** +100°C (ambient + temp rise) **Storage temperature** Component: –40°C to +100°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 

**Temperature Coefficient of Inductance (TCL)** +200 to +700 ppm/°C **Moisture Sensitivity Level (MSL)** 1 (unlimited floor life at <30°C / 85% relative humidity) 

**Packaging** 600/7″ reel; 2200/13″ reel. Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 3.7 mm pocket depth 

**PCB washing** Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. 

**==> picture [113 x 32] intentionally omitted <==**

**==> picture [113 x 44] intentionally omitted <==**

Document 1486-2 Revised 12/02/21 

© 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 17, 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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