MSS7341-183MLB

Power Inductor (SMD), 18 µH, 2.65 A, Shielded, 1.2 A, MSS7341 Series

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Manufacturer: COILCRAFT
Product type: SMD Power Inductors
Inductance:18µH; RMS Current (Irms):2.65A; Inductor Construction:Shielded; Saturation Current (Isat):1.2A; Product Range:-; Power Inductor Case:7.3mm x 7.3mm x 4.1mm; DC Resistance
Inductance: 18µH
Product Range: MSS7341 Series
Product Width: 7.3mm
Product Height: 4.1mm
Product Length: 7.3mm
DC Resistance Max: 0.075ohm
RMS Current (Irms): 2.65A
Inductance Tolerance: ± 20%
Inductor Construction: Shielded
Saturation Current (Isat): 1.2A

Delivery and price
Units per pack	100
Price	0.813 €
Current stock	10+
Lead time	30 days

Datasheet

Document 383-1 

## **Shielded Power Inductors – MSS7341** 

- 6.6 × 6.6 mm footprint; 4.1 mm high shielded inductors 

• Low DCR and excellent current handling 

**Designer’s Kit C385** contains 3 each of all values. **Core material** Ferrite 

**Core and winding loss** See www.coilcraft.com/coreloss **Terminations** RoHS compliant matte tin over nickel over phos bronze (current production) or gold over nickel over phos bronze (prior production). Other terminations available at additional cost. **Weight:** 0.61 – 0.67 g 

**Ambient temperature** –40°C to +85°C with I rms current, +85°C to +125°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 **Packaging** 1200/13″ reel; Plastic tape: 16 mm wide, 0.35 mm thick, 12 mm  pocket spacing, 4.5 mm pocket depth 

**PCB washing** Only pure water or alcohol recommended 

|**Inductance**2|**Inductance**2|**DCR**<br>**(Ohms) **|**SRF**<br> **typ**3**10% 20% 30% 20°C 40°C**|**Isat(A)**4**Irms(A)**5<br>**10% 20% 30% 20°C 40°C**|
|---|---|---|---|---|
|**Part number**1|**(µH)**|**typ    max**|**(MHz) dro**|**drop drop drop rise rise**|
|MSS7341-332NL_   3.3 ±30% 0.014 0.018 85|MSS7341-332NL_   3.3 ±30% 0.014 0.018 85|MSS7341-332NL_   3.3 ±30% 0.014 0.018 85|MSS7341-332NL_   3.3 ±30% 0.014 0.018 85|2.74 3.28 3.72 3.95 5.00|
|MSS7341-502NL_   5.0 ±30% 0.018 0.023 49|MSS7341-502NL_   5.0 ±30% 0.018 0.023 49|MSS7341-502NL_   5.0 ±30% 0.018 0.023 49|MSS7341-502NL_   5.0 ±30% 0.018 0.023 49|2.30 2.82 3.16 3.40 4.70|
|MSS7341-622NL_   6.2 ±30% 0.024 0.027 42|MSS7341-622NL_   6.2 ±30% 0.024 0.027 42|MSS7341-622NL_   6.2 ±30% 0.024 0.027 42|MSS7341-622NL_   6.2 ±30% 0.024 0.027 42|2.18 2.66 2.98 3.05 4.30|
|MSS7341-742NL_   7.4 ±30% 0.027 0.031 35|MSS7341-742NL_   7.4 ±30% 0.027 0.031 35|MSS7341-742NL_   7.4 ±30% 0.027 0.031 35|MSS7341-742NL_   7.4 ±30% 0.027 0.031 35|1.92 2.32 2.56 2.80 4.10|
|MSS7341-872NL_8.7 ±30% 0.029 0.034 33|8.7 ±30% 0.029 0.034 33|8.7 ±30% 0.029 0.034 33|8.7 ±30% 0.029 0.034 33|1.78 2.12 2.36 2.80 3.90|
|MSS7341-103ML_  10 ±20%|MSS7341-103ML_  10 ±20%|0.032 0.038 32|0.032 0.038 32|1.64 1.92 2.10 2.80 3.80|
|MSS7341-123ML_  12 ±20%|MSS7341-123ML_  12 ±20%|0.040 0.050 27|0.040 0.050 27|1.48 1.76 1.92 2.45 3.30|
|MSS7341-153ML_  15 ±20%|MSS7341-153ML_  15 ±20%|0.047 0.055 26|0.047 0.055 26|1.36 1.60 1.78 2.05 3.00|
|MSS7341-183ML_  18 ±20%|MSS7341-183ML_  18 ±20%|0.065 0.075 25|0.065 0.075 25|1.20 1.46 1.62 1.85 2.65|
|MSS7341-223ML_22 ±20%|22 ±20%|0.074 0.082 22|0.074 0.082 22|1.02 1.26 1.42 1.70 2.35|
|MSS7341-273ML_  27 ±20%|MSS7341-273ML_  27 ±20%|0.091 0.109 19|0.091 0.109 19|1.00 1.14 1.22 1.50 2.10|
|MSS7341-333ML_  33 ±20%|MSS7341-333ML_  33 ±20%|0.104 0.124 17|0.104 0.124 17|0.91 1.04 1.16 1.50 1.95|
|MSS7341-393ML_  39 ±20%|MSS7341-393ML_  39 ±20%|0.115 0.130 15|0.115 0.130 15|0.85 1.01 1.12 1.50 1.90|
|MSS7341-473ML_  47 ±20%|MSS7341-473ML_  47 ±20%|0.127 0.155 14|0.127 0.155 14|0.74 0.92 1.00 1.50 1.85|
|MSS7341-563ML_56 ±20%|56 ±20%|0.174 0.202 11|0.174 0.202 11|0.68 0.80 0.87 1.25 1.60|
|MSS7341-683ML_  68 ±20%|MSS7341-683ML_  68 ±20%|0.236 0.250|9.6|0.62 0.73 0.80 1.00 1.35|
|MSS7341-823ML_  82 ±20%|MSS7341-823ML_  82 ±20%|0.257 0.290|8.5|0.57 0.66 0.72 1.00 1.25|
|MSS7341-104ML_ 100 ±20%|MSS7341-104ML_ 100 ±20%|0.286 0.310|7.2|0.54 0.64 0.71 0.90 1.15|
|MSS7341-224ML_ 220 ±20%|MSS7341-224ML_ 220 ±20%|0.660 0.710|5.0|0.35 0.41 0.47 0.57 0.78|
|MSS7341-474ML_470 ±20%|470 ±20%|1.21<br>1.45|3.0|0.24 0.28 0.32 0.43 0.57|
|MSS7341-684KL_ 680 ±10%|MSS7341-684KL_ 680 ±10%|1.85<br>1.98|2.5|0.22 0.27 0.29 0.42 0.56|



## 1. Specify **termination** and **packaging** codes: 

**MSS7341-224MLD Termination: L** = RoHS compliant matte tin over nickel over phos bronze (current production) or gold over nickel over phos bronze (prior production) **Special order: T** = RoHS tin-silver-copper (95.5/4/0.5) over gold over nickel over phos bronze or **S** = non-RoHS tin-lead (63/37) over gold over nickel over phos bronze. 

**Packaging: D** = 13″ machine-ready reel. EIA-481 embossed plastic tape (1200 parts per full reel). 

   - **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 using a Coilcraft SMD -A fixture in an Agilent/HP 4263B LCR meter. 

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

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

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

6. Electrical specifications at 25°C. 

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

Document 383-1 Revised 11/04/11 

© Coilcraft Inc. 2012 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check out 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 

Document 383-2 

**==> picture [50 x 114] intentionally omitted <==**

## **Shielded Power Inductors – MSS7341** 

## **Typical L vs Current** 

## **Typical L vs Frequency** 

**==> picture [506 x 595] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000 680 µH 1000 680 µH<br>220 µH 220 µH<br>100 100 µH 100 100 µH<br>33 µH 33 µH<br>10 10 µH 10 10 µH<br>3.3 µH 3.3 µH<br>1 1<br>0.01 0.1 1 10 0.01 0.1 1 10<br>Current (A) Frequency (MHz)<br>0.287*<br>Typical Temperature Rise vs Current 7,3<br>50 Parts manufactured prior<br>Dash number<br>* to Sept. 2007 were marked<br>0.287 123 with only the dash number.<br>7,3 Internal code<br>40<br>X<br>* [Dimensions are of the case not]<br>including the termination. For<br>maximum overall dimensions<br>30 including the termination, add<br>0.02 in / 0,51 mm.<br>0.161<br>max<br>4,1<br>20<br>10 0.260 typ 0.280<br>6,6 7,1<br>0.083<br>typ<br>2,1 0.099<br>0 2,5<br>0 1.0 2.0 3.0 4.0 5.0 6.0 0.260 typ 0.280<br>6,6 7,1<br>Current (Arms) 0.222<br>∅<br>5,65<br>Irms Derating Recommended<br>120 Land Pattern<br>110 Dimensions are in [inches ]<br>mm<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<br>Ambient temperature (°C)<br>100 µH 33 µH 10 µH 3.3 µH<br>Inductance (µH) Inductance (µH)<br>Irms<br>Percent of rated<br>Temperature rise (from 25°C)<br>25°C<br>**----- End of picture text -----**<br>


**==> picture [117 x 44] intentionally omitted <==**

**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 383-2 Revised 11/04/11 

© Coilcraft Inc. 2012 

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

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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