0403HQ-18NXJLU

Wirewound Inductor, 18 nH, 0.185 ohm, 500 mA, 0403 [1008 Metric], 0403HQ Series

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Manufacturer: COILCRAFT
Product type: Wirewound Inductors
Inductance: 18nH
Core Material: Ceramic
Product Range: 0403HQ Series
Product Width: 0.86mm
Product Height: 0.71mm
Product Length: 1.19mm
DC Current Rating: 500mA
DC Resistance Max: 0.185ohm
Inductor Case Style: 0403 [1008 Metric]
Inductance Tolerance: ± 5%
Inductor Construction: Unshielded
Inductor Case / Package: 0403 [1008 Metric]

Delivery and price
Units per pack	10000
Price	0.586 €
Current stock	10+
Lead time	30 days

Datasheet

Document 300-1 

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## **Chip Inductors - 0403HQ (1008)** 

- Very high Q factors and excellent current handling 

- Intermediate L values not found in other series 

|**Inductance**2<br>**Percent**<br>**Q**<br>  **Part number**1<br>**(nH)**<br>**tolerance**<br> **min**3|**900 MHz**<br>**L typ Q typ**|**SRF**<br>**DCR**<br>**1.7 GHz**<br> **typ**4<br> **max**5<br> **Irms**6<br>**L typ Q typ**<br>**(GHz)**<br>**(Ohms)**<br>**(A)**|
|---|---|---|
|0403HQ-1N9XJL_<br>1.9<br>**5**<br>40<br>0403HQ-2N1XJL_<br>2.1<br>**5**<br>35<br>0403HQ-3N4XJL_<br>3.4<br>**5**<br>40<br>0403HQ-3N7XJL_<br>3.7<br>**5**<br>40<br>0403HQ-5N5XJL_<br>5.5<br>**5**<br>40|1.9<br>62<br>2.1<br>56<br>3.4<br>66<br>3.7<br>64<br>5.5<br>62|1.9<br>94<br>11.84<br>0.012<br>2.2<br>2.1<br>88<br>12.40<br>0.019<br>1.8<br>3.5<br>96<br>8.97<br>0.016<br>1.9<br>3.8<br>95<br>8.65<br>0.018<br>1.8<br>5.7<br>93<br>8.60<br>0.022<br>1.5|
|0403HQ-6N6XJL_<br>6.6<br>**5**<br>40<br>0403HQ-8N2XJL_<br>8.2<br>**5**<br>40<br>0403HQ-9N0XJL_<br>9.0<br>**5**<br>40<br>0403HQ-12NXJL_<br>12<br>**5**<br>40<br>0403HQ-15NXJL_<br>15<br>**5**<br>35|6.6<br>60<br>8.2<br>63<br>9.1<br>66<br>12.1<br>60<br>15.2<br>60|6.9<br>92<br>7.30<br>0.046<br>1.1<br>8.5<br>92<br>6.73<br>0.040<br>1.2<br>9.5<br>90<br>6.85<br>0.055<br>1.0<br>12.7<br>90<br>5.82<br>0.065<br>0.80<br>16.0<br>90<br>5.82<br>0.188<br>0.50|
|0403HQ-18NXJL_<br>18<br>**5**<br>35|18.2<br>62|19.6<br>93<br>5.15<br>0.185<br>0.50|



1. When ordering, please specify **termination** and **packaging** codes: 

## **0403HQ-18NXJLW** 

- **Termination: L** = RoHS compliant silver-palladium-platinum-glass frit. Special order: **T** = RoHS tin-silver-copper (95.5/4/0.5) or **S** = non-RoHS tin-lead (63/37). 

- **Packaging: W** = 7″ machine-ready reel. EIA-481 punched paper tape (2000 parts per full reel). 

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

2. Inductance measured at 500 MHz using a Coilcraft SMD-F fixture in an Agilent/HP 4286 impedance analyzer with Coilcraft-provided correlation pieces. 

3. Q measured at 500 MHz using an Agilent/HP 4291A with an Agilent/ HP 16193 test fixture. 

4. SRF measured using an Agilent/HP 8722ES network analyzer and a test fixture with a 0.017² air gap. 

5. DCR measured on a micro-ohmmeter and a Coilcraft CCF858 test fixture. 

6. Current that causes a 30°C temperature rise from 25°C ambient. See Qualification Standards section for environmental and test data. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 

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**Designer’s Kit C371** contains 20 of each value **Core material** Ceramic 

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

**Weight** 1.29 – 1.60 mg 

**Ambient temperature** –40°C to +125°C with I rms current, +125°C to +155°C with derated current 

**Storage temperature** Component: –40°C to +155°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)** +25 to +125 ppm/°C **Moisture Sensitivity Level (MSL)** 1 (unlimited floor life at <30°C / 85% relative humidity) 

**Failures in Time (FIT) / Mean Time Between Failures (MTBF)** One per billion hours / one billion hours, calculated per Telcordia SR-332 **Packaging** 2000 per 7″reel; 7500 per 13″ reel; Paper tape: 8 mm wide, 1.0 mm thick, 4 mm  pocket spacing, **PCB washing** Only pure water or alcohol recommended 

Document 300-1 Revised 01/11/12 

**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 

© Coilcraft Inc. 2012 This product may not be used in medical of high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check out web site for latest information. 

Document 300-2 

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## **0403HQ Series (1008) Typical L vs Frequency** 

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**----- Start of picture text -----**<br>
25<br>20 18.0 nH<br>15 12.0 nH<br>10<br>8.2 nH<br>5<br>1.9 nH<br>0<br>1 10 100 1000 10000<br>Frequency (MHz)<br>Inductance (nH)<br>**----- End of picture text -----**<br>


## **Irms Derating** 

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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<br>Ambient temperature (°C)<br>Irms<br>Percent of rated<br>25°C<br>**----- End of picture text -----**<br>


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## **Typical Q vs Frequency** 

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100<br>1.9 nH<br>90<br>18.0 nH<br>80 8.2 nH<br>12.0 nH<br>70<br>60<br>50<br>40<br>30<br>20<br>10<br>0<br>1 10 100 1000 10000<br>Frequency (MHz)<br>Q Factor<br>**----- End of picture text -----**<br>


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B<br>overall C Pick and G<br>E place H<br>material<br>A F I<br>E H<br>D<br>terminal Terminal wraparound: Recommended<br>approx 0.007/0,18 both ends Land Pattern<br> A  B  C<br> max  max  max  D   E  F  G  H  I<br> 0.047 0.034 0.028 0.030 0.009 0.022 0.040 0.014 0.018 inches<br> 1,19  0,86  0,71  0,76  0,23  0,56  1,02  0,36  0,46  mm<br>**----- End of picture text -----**<br>


**Note:** Height dimension (C) is before optional solder application. For maximum height dimension including solder, add 0.006 in / 0,152 mm. 

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Document 300-2 Revised 01/11/12 

**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 

© Coilcraft Inc. 2012 This product may not be used in medical of high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check out web site for latest information.

Updated at February 9, 2023

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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