PM1812-1R5J-RC

WIREWOUND INDUCTORS

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
Manufacturer: BOURNS / PARTNER STOCK
Product type: Wirewound Inductors
SVHC: No SVHC (04-Feb-2026)
Delivery and price
Units per pack	1500
Price	0.135 €
Current stock	500+
Lead time	30 days
Datasheet
**Applications** ■ DC/DC converters 

## **Features** 

■ Formerly                          model 

■ High resistance to heat and humidity 

■ Resistance to mechanical shock and pressure 

■ Accurate dimensions for automatic surface mounting 

■ Power supplies 

- General use 

■ Wide inductance range (0.1 nH to 1000 µH) 

■ RoHS compliant* 

## BOURNS ~~EE~~ **PM1812 Series SMT Chip Inductors** 

## ~~**General Specif cations**~~ 

Temperature Rise ...................................................................................................................................................................... 20 ˚C max. Ambient Temperature .............................................................................................................................................................  100 ˚C max. Operating Temperature ....................................................................................................................................................-40 °C to +125 °C Storage Temperature .......................................................................................................................................................-40 °C to +125 °C Resistance to Soldering Heat .........................................................................................................................................245 ˚C, 5 seconds 

## ~~**Materials**~~ 

Core ...................................................................................................................................................................................................Ferrite Coil Type ...................................................................................................................................................................................Copper wire Enclosure.................................................................................................................................................................................. Epoxy resin Terminal ...................................................................................................................................................................................................Sn 

**==> picture [484 x 304] intentionally omitted <==**

**----- Start of picture text -----**<br>
Product Dimensions Recommended Land Pattern Dimensions<br>Marking<br>PM1812<br>c<br>3.2<br>(.125)<br>a<br>1.2<br>ea]*aa 4.5 fe— (.047) (EFs b<br>(.177)<br>es Ge Model a b c<br>3.2 ± 0.2 2.4 to 2.6  5.5 to 6.0  2.0 to 3.0<br>(.125 ± .008) PM1812<br>(.094 to .102) (.217 to .236) (.079 to .118)<br>—— 1.7 ± 0.2<br>(.066 ± .008) MM<br>_ILJE— 1.0 1.0 DIMENSIONS: =<br>(.039) (.039) (INCHES)<br>Soldering Prof les<br>275<br><1> 5 seconds maximum  <1> 245 °C<br>at +245 °C<br>225 ey<br>170 °C<br>175 183 °C<br>ry 150 °C 60 seconds eeee<br>125 maximum Ramp Down5 °C/second<br>120 -150 seconds<br>a<br>10 seconds minimum<br>75<br>Ramp Up<br>4 °C/second maximum<br>25 fo ON<br>0 50 100 150 200 250 300<br>Time (Seconds)<br>(°C)<br>Temperature<br>**----- End of picture text -----**<br>


*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 

**WARNING  Cancer and Reproductive Harm** www.P65Warnings.ca.gov 

## **PM1812 Series SMT Chip Inductors** 

## ~~**Electrical Characteristics**~~ 

|**RoHS Compliant**<br>**1812 Size**<br>**Part Number**|**Inductance**<br>**μH**|**Tolerance**|**Q**<br>**min.**|**Test Freq.**<br>**MHz**|**SRF min.**<br>**MHz**|**RDC**<br>**ohms max.**|**IDC**<br>**mA max.**|
|---|---|---|---|---|---|---|---|
|C<br>R<br>-<br>K<br>0<br>1<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>1<br>.<br>0|%<br>0<br>1<br>±|5<br>3|2<br>.<br>5<br>2|0<br>0<br>3|8<br>1<br>.<br>0|0<br>0<br>8|
|C<br>R<br>-<br>K<br>2<br>1<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>1<br>.<br>0|%<br>0<br>1<br>±|5<br>3|2<br>.<br>5<br>2|0<br>8<br>2|2<br>.<br>0|0<br>7<br>7|
|C<br>R<br>-<br>K<br>5<br>1<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|5<br>1<br>.<br>0|%<br>0<br>1<br>±|5<br>3|2<br>.<br>5<br>2|0<br>5<br>2|2<br>2<br>.<br>0|0<br>3<br>7|
|C<br>R<br>-<br>K<br>8<br>1<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|8<br>1<br>.<br>0|%<br>0<br>1<br>±|5<br>3|2<br>.<br>5<br>2|0<br>2<br>2|4<br>2<br>.<br>0|0<br>0<br>7|
|C<br>R<br>-<br>K<br>2<br>2<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>2<br>.<br>0|%<br>0<br>1<br>±|0<br>4|2<br>.<br>5<br>2|0<br>0<br>2|5<br>2<br>.<br>0|5<br>6<br>6|
|C<br>R<br>-<br>K<br>7<br>2<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|7<br>2<br>.<br>0|%<br>0<br>1<br>±|0<br>4|2<br>.<br>5<br>2|0<br>8<br>1|6<br>2<br>.<br>0|5<br>3<br>6|
|C<br>R<br>-<br>K<br>3<br>3<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|3<br>3<br>.<br>0|%<br>0<br>1<br>±|0<br>4|2<br>.<br>5<br>2|5<br>6<br>1|8<br>2<br>.<br>0|5<br>0<br>6|
|C<br>R<br>-<br>K<br>9<br>3<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|9<br>3<br>.<br>0|%<br>0<br>1<br>±|0<br>4|2<br>.<br>5<br>2|0<br>5<br>1|0<br>3<br>.<br>0|5<br>7<br>5|
|C<br>R<br>-<br>K<br>7<br>4<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|7<br>4<br>.<br>0|%<br>0<br>1<br>±|0<br>4|2<br>.<br>5<br>2|5<br>4<br>1|2<br>3<br>.<br>0|5<br>4<br>5|
|C<br>R<br>-<br>K<br>6<br>5<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|6<br>5<br>.<br>0|%<br>0<br>1<br>±|0<br>4|2<br>.<br>5<br>2|0<br>4<br>1|6<br>3<br>.<br>0|0<br>2<br>5|
|C<br>R<br>-<br>K<br>8<br>6<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|8<br>6<br>.<br>0|%<br>0<br>1<br>±|0<br>4|2<br>.<br>5<br>2|5<br>3<br>1|0<br>4<br>.<br>0|0<br>0<br>5|
|C<br>R<br>-<br>K<br>2<br>8<br>R<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>8<br>.<br>0|%<br>0<br>1<br>±|0<br>4|2<br>.<br>5<br>2|0<br>3<br>1|5<br>4<br>.<br>0|5<br>7<br>4|
|C<br>R<br>-<br>J<br>0<br>R<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>.<br>1|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|0<br>0<br>1|0<br>5<br>.<br>0|0<br>5<br>4|
|C<br>R<br>-<br>J<br>2<br>R<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>.<br>1|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|0<br>8|5<br>5<br>.<br>0|0<br>3<br>4|
|C<br>R<br>-<br>J<br>5<br>R<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|5<br>.<br>1|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|0<br>7|0<br>6<br>.<br>0|0<br>1<br>4|
|C<br>R<br>-<br>J<br>8<br>R<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|8<br>.<br>1|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|0<br>6|5<br>6<br>.<br>0|0<br>9<br>3|
|C<br>R<br>-<br>J<br>2<br>R<br>2<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>.<br>2|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|5<br>5|0<br>7<br>.<br>0|0<br>8<br>3|
|C<br>R<br>-<br>J<br>7<br>R<br>2<br>-<br>2<br>1<br>8<br>1<br>M<br>P|7<br>.<br>2|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|0<br>5|5<br>7<br>.<br>0|0<br>7<br>3|
|C<br>R<br>-<br>J<br>3<br>R<br>3<br>-<br>2<br>1<br>8<br>1<br>M<br>P|3<br>.<br>3|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|5<br>4|0<br>8<br>.<br>0|5<br>5<br>3|
|C<br>R<br>-<br>J<br>9<br>R<br>3<br>-<br>2<br>1<br>8<br>1<br>M<br>P|9<br>.<br>3|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|0<br>4|0<br>9<br>.<br>0|0<br>3<br>3|
|C<br>R<br>-<br>J<br>7<br>R<br>4<br>-<br>2<br>1<br>8<br>1<br>M<br>P|7<br>.<br>4|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|5<br>3|0<br>0<br>.<br>1|5<br>1<br>3|
|C<br>R<br>-<br>J<br>6<br>R<br>5<br>-<br>2<br>1<br>8<br>1<br>M<br>P|6<br>.<br>5|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|3<br>3|0<br>1<br>.<br>1|0<br>0<br>3|
|C<br>R<br>-<br>J<br>8<br>R<br>6<br>-<br>2<br>1<br>8<br>1<br>M<br>P|8<br>.<br>6|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|7<br>2|2<br>.<br>1|5<br>8<br>2|
|C<br>R<br>-<br>J<br>2<br>R<br>8<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>.<br>8|%<br>5<br>±|0<br>5|6<br>9<br>.<br>7|5<br>2|4<br>.<br>1|0<br>7<br>2|
|C<br>R<br>-<br>J<br>0<br>0<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>1|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|0<br>2|6<br>.<br>1|0<br>5<br>2|
|C<br>R<br>-<br>J<br>0<br>2<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>1|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|8<br>1|2|5<br>2<br>2|
|C<br>R<br>-<br>J<br>0<br>5<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|5<br>1|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|7<br>1|5<br>.<br>2|0<br>0<br>2|
|C<br>R<br>-<br>J<br>0<br>8<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|8<br>1|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|5<br>1|8<br>.<br>2|0<br>9<br>1|
|C<br>R<br>-<br>J<br>0<br>2<br>2<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>2|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|3<br>1|2<br>.<br>3|0<br>8<br>1|
|C<br>R<br>-<br>J<br>0<br>7<br>2<br>-<br>2<br>1<br>8<br>1<br>M<br>P|7<br>2|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|2<br>1|6<br>.<br>3|0<br>7<br>1|
|C<br>R<br>-<br>J<br>0<br>3<br>3<br>-<br>2<br>1<br>8<br>1<br>M<br>P|3<br>3|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|1<br>1|4|0<br>6<br>1|
|C<br>R<br>-<br>J<br>0<br>9<br>3<br>-<br>2<br>1<br>8<br>1<br>M<br>P|9<br>3|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|0<br>1|5<br>.<br>4|0<br>5<br>1|
|C<br>R<br>-<br>J<br>0<br>7<br>4<br>-<br>2<br>1<br>8<br>1<br>M<br>P|7<br>4|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|0<br>1|5|0<br>4<br>1|
|C<br>R<br>-<br>J<br>0<br>6<br>5<br>-<br>2<br>1<br>8<br>1<br>M<br>P|6<br>5|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|9|5<br>.<br>5|5<br>3<br>1|
|C<br>R<br>-<br>J<br>0<br>8<br>6<br>-<br>2<br>1<br>8<br>1<br>M<br>P|8<br>6|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|9|6|0<br>3<br>1|
|C<br>R<br>-<br>J<br>0<br>2<br>8<br>-<br>2<br>1<br>8<br>1<br>M<br>P|2<br>8|%<br>5<br>±|0<br>5|2<br>5<br>.<br>2|8|7|0<br>2<br>1|
|C<br>R<br>-<br>J<br>1<br>0<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>0<br>1|%<br>5<br>±|0<br>4|2<br>5<br>.<br>2|8|8|0<br>1<br>1|
|C<br>R<br>-<br>J<br>1<br>2<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>2<br>1|%<br>5<br>±|0<br>4|6<br>9<br>7<br>.<br>0|6|8|0<br>1<br>1|
|C<br>R<br>-<br>J<br>1<br>5<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>5<br>1|%<br>5<br>±|0<br>4|6<br>9<br>7<br>.<br>0|5|9|5<br>0<br>1|
|C<br>R<br>-<br>J<br>1<br>8<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>8<br>1|%<br>5<br>±|0<br>4|6<br>9<br>7<br>.<br>0|5|5<br>.<br>9|2<br>0<br>1|
|C<br>R<br>-<br>J<br>1<br>2<br>2<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>2<br>2|%<br>5<br>±|0<br>4|6<br>9<br>7<br>.<br>0|4|0<br>1|0<br>0<br>1|
|C<br>R<br>-<br>J<br>1<br>7<br>2<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>7<br>2|%<br>5<br>±|0<br>4|6<br>9<br>7<br>.<br>0|4|2<br>1|2<br>9|
|C<br>R<br>-<br>J<br>1<br>3<br>3<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>3<br>3|%<br>5<br>±|0<br>4|6<br>9<br>7<br>.<br>0|5<br>.<br>3|4<br>1|5<br>8|
|C<br>R<br>-<br>J<br>1<br>9<br>3<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>9<br>3|%<br>5<br>±|0<br>4|6<br>9<br>7<br>.<br>0|3|8<br>1|0<br>8|
|C<br>R<br>-<br>J<br>1<br>7<br>4<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>7<br>4|%<br>5<br>±|0<br>4|6<br>9<br>7<br>.<br>0|3|6<br>2|2<br>6|
|C<br>R<br>-<br>J<br>1<br>6<br>5<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>6<br>5|%<br>5<br>±|0<br>3|6<br>9<br>7<br>.<br>0|3|0<br>3|0<br>5|
|C<br>R<br>-<br>J<br>1<br>8<br>6<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>8<br>6|%<br>5<br>±|0<br>3|6<br>9<br>7<br>.<br>0|3|0<br>3|0<br>5|
|C<br>R<br>-<br>J<br>1<br>2<br>8<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>2<br>8|%<br>5<br>±|0<br>3|6<br>9<br>7<br>.<br>0|5<br>.<br>2|5<br>3|0<br>3|
|C<br>R<br>-<br>J<br>2<br>0<br>1<br>-<br>2<br>1<br>8<br>1<br>M<br>P|0<br>0<br>0<br>1|%<br>5<br>±|0<br>3|2<br>5<br>2<br>.<br>0|5<br>.<br>2|0<br>4|0<br>3|



Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 

## **PM1812 Series SMT Chip Inductors** 

## ~~**Packaging Specif cations**~~ 

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t1 ØDo P3<br>E<br>F<br>W B<br>t2 Chip P1 P2 A<br>Component<br>Tape running direction<br>**----- End of picture text -----**<br>


|**Model**|**A**|**B**|**W**|**F**|**E**|**P1**|**P2**|**P3**|**øD0**|**øD1**|**t1**|**t2**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|PM1812|3.60<br>(.142)|4.90<br>(.193)|12.00<br>(.472)|5.50<br>(.217)|1.75<br>(.069)|8.00<br>(.315)|2.00<br>(.079)|4.00<br>(.157)|1.50<br>(.059)|—|0.30<br>(.012)|3.50<br>(.138)|



## ~~**Reel Dimensions**~~ 

|||||||||MM<br>(INCHES)<br>**E**<br>**W**<br>2<br>(.079)<br>13<br>(.512)|MM<br>(INCHES)<br>**E**<br>**W**<br>2<br>(.079)<br>13<br>(.512)||A<br>D<br>C<br>E|B<br>W|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
||**Model**||**A**|**B**|**C**|**D**||**E**|**W**||||
||PM1812||178<br>(7.008)|60 min.|13<br>(.512)|21<br>(.827)||2<br>(.079)|13<br>(.512)||||
||~~**Pki**~~||||||||||||
||||||||||||||
||~~**acagng**~~||||||||||||
||||||||||||||
||**Model**|**Quantity**|||||||||||
||PM1812|500 pcs.|||||||||||



REV.  09/14 

Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 

® 

## **Legal Disclaimer Notice** 

This legal disclaimer applies to purchasers and users of Bourns[®] products manufactured by or on behalf of Bourns, Inc. and 

Unless otherwise expressly indicated in writing, Bourns[®] products and data sheets relating thereto are subject to change without notice. Users should check for and obtain the latest relevant information and verify that such information is and complete before placing orders for Bourns[®] products. 

The characteristics and parameters of a Bourns[®] product set forth in its data sheet are based on laboratory conditions, and statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical requirements in generic applications.  The characteristics and parameters of a Bourns[®] product in a user application may 

® product with other components ® 

the actual performance of the Bourns[®] 

Unless Bourns has explicitly designated an individual Bourns ® product as meeting the requirements of a particular industry standard (e.g., ISO/TS 16949) or a particular qualification (e.g., UL listed or recognized), Bourns is not responsible for any failure of an individual Bourns ® product to meet the requirements of such industry standard or particular qualification. Users of Bourns[®] products are responsible for ensuring compliance with safety-related requirements and standards applicable to 

Bourns[®] 

on a case-by-case basis, use of any Bourns[®] 

® 

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® 

Bourns[®] 

® standard products that are suitable for use in aircraft “Applications.” Unless expressly and specifically ® standard 

the user’s sole risk. 

The use and level of testing applicable to Bourns ® custom products shall be negotiated on a case-by-case basis by Bourns and the user for which such Bourns[®] custom products are specially designed. Absent a written agreement between Bourns and the user regarding the use and level of such testing, the above provisions applicable to Bourns ® standard products shall also apply to such Bourns[®] custom products. 

Users shall not sell, transfer, export or re-export any Bourns[®] design, development, production, use or stockpiling of Bourns[®] 

regulations. Further, Bourns ® products and Bourns technology and technical data may not under any circumstance be exported or re-exported to countries subject to international sanctions or embargoes.  Bourns[®] products may not, without 

_bilingual versions are available at:_ 

_Web Page: http://www.bourns.com/legal/disclaimers-terms-and-policies PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf_
Updated at April 26, 2026
About Novapart

Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
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Stock Shortage Specialist

When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
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Compliant Alternatives

We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →