# Power Inductor (SMD), 4.7 µH, 2.6 A, Shielded, 1.5 A, SRR4818A Series, 1919 [4848 Metric] ![Product image](https://novapart.co/image/farnell:2775395RL/) **URL**: https://novapart.co/products/SRR4818A-4R7Y/power-inductor-smd-47-h-26-a-shielded-15-srr4818a **SKU**: SRR4818A-4R7Y **Manufacturer**: BOURNS **Category**: Passive Components || Inductors || Power Inductors || SMD Power Inductors **Price**: €0.3270 **Stock**: 1000+ **Lead Time**: 134 days (indicative) ## Description Inductance:4.7µH; RMS Current (Irms):2.6A; Inductor Construction:Shielded; Saturation Current (Isat):1.5A; Product Range:SRR4818A Series; Power Inductor Case:4.8mm x 4.8mm x 1.8m ## Specifications | Parameter | Value | |---|---| | Svhc | No SVHC (04-Feb-2026) | | Inductance | 4.7µH | | Product Range | SRR4818A Series | | Product Width | 4.8mm | | Product Height | 1.8mm | | Product Length | 4.8mm | | Dc Resistance Max | 0.08ohm | | Rms Current (Irms) | 2.6A | | Inductance Tolerance | ± 30% | | Inductor Construction | Shielded | | Inductor Case / Package | 1919 [4848 Metric] | | Saturation Current (Isat) | 1.5A | ## Datasheet 📄 [Download PDF](https://novapart.co/datasheet/farnell:2775395RL/) ## **Features** ■ Shielded construction ■ Inductance range: 1 to 47 µH ■ Heating current up to 5.1 A ■ AEC-Q200 qualified ■ RoHS compliant* and halogen free** ## **SRR4818A Series - Shielded Power Inductors** BOURNS [is Operating Temp. ......... -40 °C to +150 °C (Temperature rise included) Storage Temperature .. -40 °C to +150 °C Temperature Rise ..................... 20 °C typ. at rated Irms[1] 40 °C typ. at rated Irms[2] Rated Current ............ Inductance drops 35 % at Isat Moisture Sensitivity Level .....................1 ESD Classification (HBM) .................N/A **==> picture [498 x 459] intentionally omitted <==** **----- Start of picture text -----**
|||||||||||||||| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| |Bourns|Inductance @ 100 kHz/0.1 V|SRF|DCR (m|Ω|)|I rms|[1]|I rms|[2]|I sat|(Temperature rise included)| |Part Number|L (μH)|Tol. (%)|(MHz) Typ.|Typ.|Max.|Typ.(A)|Typ.(A)|Typ.(A)|Storage Temperature .. -40 °C to +150 °C| |Temperature Rise| |Po|SRR4818A-1R0Y|1.0|± 30|140|19.2|25.0|4.00|5.10|3.60|..................... 20 °C typ. at rated Irms| |pC|SRR4818A-1R5Y|1.5|± 30|105|25.2|35.0|3.75|4.70|3.00|40 °C typ. at rated Irms| |Re|SRR4818A-2R2Y|ee|2.2|± 30|90|33.7|45.0|2.70|3.50|2.43|Rated Current| |Po|SRR4818|rt—“—*é‘~*YSC“‘(i|A-3R3Y|3.3|± 30|70|42.8|55.0|2.50|3.10|2.10|............ Inductance drops 35 % at Isat| |SRR4818A-3R9Y|3.9|± 30|65|54.5|70.0|2.20|2.70|1.90|Moisture Sensitivity Level .....................1| |Re|SRR4818A-4R7Y|ee|4.7|± 30|55|59.4|80.0|2.00|2.60|1.50|ESD|Classification|(HBM)|.................N/A| |Po|SRR4818|rt—“—*é‘~*YSC“‘(i|A-5R6Y|5.6|± 30|50|74.3|90.0|1.75|2.30|1.35| |pC|SRR4818A-6R8Y|6.8|± 30|45|82.1|100.0|1.65|2.20|1.25|Materials| |ee|SRR4818A-8R2Y|8.2|± 30|GO|43|97.7|130.0|1.55|1.90|1.15|Core ..............................................Ferrite| |po|SRR4818|rt—“—*é‘i~é~*YSC“‘i_T|A-100M|10|± 20|40|109.8|140.0|1.45|1.80|1.05|Wire ............................Enameled copper| |pC|SRR4818A-120M|12|± 20|37|132.2|170.0|1.30|1.60|0.95|Terminal Finish ...................................Sn| |Re|SRR4818A-150M|ee|15|± 20|30|17|6.7|220.0|1.|25|1.50|0.87|Packaging ......... 800 pcs. per 7-inch reel| |Po|SRR4818|rt—“—*é‘~*YSC“‘(i|A-180M|18|± 20|28|214.8|280.0|1.10|1.40|0.79| |pC|SRR4818A-220M|22|± 20|25|280.3|360.0|1.00|1.25|0.72|Product Dimensions| |Re|SSRR4RR4881188A-27A-3300MM|ee|2733|± 2± 200|2220|33917.|9.1|6|450000..00|00..7900|1.10.905|00..6356|(.189 4.80 ±± 0.20 .008)| |pC|SRR4818A-390M|39|± 20|17|439.3|540.0|0.63|0.80|0.53|MARKED LINE|a| |SRR4818A-470M|47|± 20|16|504.1|630.0|0.60|0.|7|5|0.47|INDICATES| |WINDING| |STARTING| |Re|How to Order|GG|Electrical Schematic|TERMINAL|4.80 ±|||0.20| |(.189 ± .008)| |SRR4818A - 1R0Y| |Model| |Value Code (see table)|=|H5=>|HH~Sa|at|aaae|0|1.80|L|± 0.20|i| |Jo| |(.071 ± .008)| |Recommended Layout| |4.20|1.98| |(.165)|(.078)| |1.60 ± 0.20|1.60 ± 0.20| |SERRE]|}|(.063|ee|± .008)|||(.063 ± .008)| |1.17| |BOURNS’|__ERERRES|j||| |(.046)| |Asia-Pacifi c:|y|a| |Tel: +886-2 2562-4117| |4CON|]|ij| |Fax: +886-2 2562-4116| |1.60 ± 0.20| |Europe:|eeecececectcePRQQQLS|ee|(.063|—|± .008)| |Tel: +41-41 768 5555|1.98| |Fax: +41-41 768 5510|DIMENSIONS:|(INCHES)MM|(.078)|DIMENSIONS:|(INCHES)MM| **----- End of picture text -----**
Core ..............................................Ferrite Wire ............................Enameled copper Terminal Finish ...................................Sn Packaging ......... 800 pcs. per 7-inch reel **The Americas:** Tel: +1-951 781-5500 Fax: +1-951 781-5700 **www.bourns.com** - RoHS Directive 2015/863, Mar 31, 2015 and Annex. ** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlori ~~ne (Cl) content is 1500 pp~~ m or less. 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 ## **SRF0504 Series - Line FilterR4818A Series - Shield d Power Inductors** **==> picture [517 x 585] intentionally omitted <==** **----- Start of picture text -----**
Inductance vs. IDC
SRR4818A-1R0Y SRR4818A-1R5Y SRR4818A-2R2Y
120% 120% 120%
100% 100% 100%
80% 80% 80%
60% 60% 60%
40% 40% 40%
20% 20% 20%
0% 0% 0%
0 1 2 3 4 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.6 1.2 1.8 2.4
IDC (A) IDC (A) IDC (A)
SRR4818A-3R3Y SRR4818A-3R9Y SRR4818A-4R7Y
120% 120% 120%
100% 100% 100%
80% 80% 80%
60% 60% 60%
40% 40% 40%
20% 20% 20%
0% 0% 0%
0 0.6 1.2 1.8 2.4 0 0.6 1.2 1.8 2.4 0 0.34 0.68 1.02 1.36 1.70
IDC (A) IDC (A) IDC (A)
SRR4818A-5R6Y SRR4818A-6R8Y SRR4818A-8R2Y
120% 120% 120%
100% 100% 100%
80% 80% 80%
60% 60% 60%
40% 40% 40%
20% 20% 20%
0% 0% 0%
0 0.3 0.6 0.9 1.2 1.5 0 0.325 0.650 0.975 1.300 0 0.325 0.650 0.975 1.300
IDC (A) IDC (A) IDC (A)
SRR4818A-100M SRR4818A-120M SRR4818A-150M
120% 120% 120%
100% 100% 100%
80% 80% 80%
60% 60% 60%
40% 40% 40%
20% 20% 20%
0% 0% 0%
0 0.2 0.4 0.6 0.8 1.0 1.2 0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1.0
IDC (A) IDC (A) IDC (A)
L/LOA L/LOA L/LOA
L/LOA L/LOA L/LOA
L/LOA L/LOA L/LOA
L/LOA L/LOA L/LOA
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Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and in this document are subject to specific legal disclaimers set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. ## **SRF0504 Series - Line FilterR4818A Series - Shield d Power Inductors** **==> picture [517 x 597] intentionally omitted <==** **----- Start of picture text -----**
Inductance vs. IDC (Continued)
SRR4818A-180M SRR4818A-220M SRR4818A-270M
120% 120% 120%
100% 100% 100%
80% 80% 80%
60% 60% 60%
40% 40% 40%
20% 20% 20%
0% 0% 0%
0 1.05 3.00 4.05 6.00 7.05 9.00 0 0.2 0.4 0.6 0.8 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
IDC (A) IDC (A) IDC (A)
SRR4818A-330M SRR4818A-390M SRR4818A-470M
120% 120% 120%
100% 100% 100%
80% 80% 80%
60% 60% 60%
40% 40% 40%
20% 20% 20%
0% 0% 0%
0 0.1 0.2 0.3 0.4 0.5 0.6 0 0.1 0.2 0.3 0.4 0.5 0.6 0 0.1 0.2 0.3 0.4 0.5 0.6
IDC (A) IDC (A) IDC (A)
Temperature vs. IDC
SRR4818A-1R0Y SRR4818A-1R5Y SRR4818A-2R2Y
50 40 40
40 32
30
30 24
20
20 16
10
10 8
0 0 0
0 1 2 3 4 5 6 0 1 2 3 4 5 0 0.7 1.4 2.1 2.8 3.5
IDC (A) IDC (A) IDC (A)
SRR4818A-3R3Y SRR4818A-3R9Y SRR4818A-4R7Y
50 50 50
40 40 40
30 30 30
20 20 20
10 10 10
0 0 0
0 0.7 1.4 2.1 2.8 3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0
IDC (A) IDC (A) IDC (A)
L/LOA L/LOA L/LOA
L/LOA L/LOA
L/LOA
T (°C) T (°C) T (°C)
Δ Δ Δ
T (°C) T (°C) T (°C)
Δ Δ Δ
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Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and in this document are subject to specific legal disclaimers set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. ## **SRF0504 Series - Line FilterR4818A Series - Shield d Power Inductors** **==> picture [517 x 580] intentionally omitted <==** **----- Start of picture text -----**
Temperature vs. IDC (Continued)
( )
SRR4818A-5R6Y SRR4818A-6R8Y SRR4818A-8R2Y
60 50 40
48 40 32
36 30 24
24 20 16
12 10 8
0 0 0
0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.6 1.2 1.8 2.4 0 0.5 1.0 1.5 2.0
IDC (A) IDC (A) IDC (A)
SRR4818A-100M SRR4818A-120M SRR4818A-150M
50 60 40
40 48 32
30 36 24
20 24 16
10 12 8
0 0 0
0 0.4 0.8 1.2 1.6 2.0 0 0.4 0.8 1.2 1.6 2.0 0 0.3 0.6 0.9 1.2 1.5 1.8
IDC (A) IDC (A) IDC (A)
SRR4818A-180M SRR4818A-220M SRR4818A-270M
60 50 50
48 40 40
36 30 30
24 20 20
12 10 10
0 0 0
0 0.3 0.6 0.9 1.2 1.5 1.8 0 0.3 0.6 0.9 1.2 1.5 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
IDC (A) IDC (A) IDC (A)
SRR4818A-330M SRR4818A-390M SRR4818A-470M
50 60 50
40 48 40
30 36 30
20 24 20
10 12 10
0 0 0
0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1.0 0 0.15 0.30 0.45 0.60 0.75 0.90
IDC (A) IDC (A) IDC (A)
T (°C) T (°C) T (°C)
Δ Δ Δ
T (°C) T (°C) T (°C)
Δ Δ Δ
T (°C) T (°C) T (°C)
Δ Δ Δ
T (°C) T (°C) T (°C)
Δ Δ Δ
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Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and in this document are subject to specific legal disclaimers set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. ## **SRF0504 Series - Line FilterR4818A Series - Shield d Power Inductors** **==> picture [428 x 517] intentionally omitted <==** **----- Start of picture text -----**
Temperature Preheat Reflow Forced
Rising Area Area Area Cooling Area
+4.0 °C/Sec. Max. 150~200 °C / 60~120 Sec. +3.0 °C/Sec. Max. -(1.0~5.0) °C/Sec. Max.
Peak Temperature: 260 °C
250
|
217 °C
200 60~150 Sec.
} -—
60 Sec. Peak Temperature 260 max.
150 Max. Max. Peak Temperature -5 30 sec. max.
Max. Time Above 217 : 60~150 sec. max.
60~120 Sec.
100 - °
50
0 50 100 150 200 250
Time (Seconds)
Specifications
178 2.0 ± 0.5 16.5
(7.001) _ [DIA.] a (.079 ± .020) (.650) Le THICKNESS
13.0
21.0 ± 0.8
(.512)
(.827 ± .031) DIA.
50.0 -0
(1.969 - 0)
May Peet Pa RQ *Y
13.0
DIA.
— (.512) 35
i y ae |
12.0
14.0 +0
(.551 +0) (.472)
2.0 8.0
END (.079) 4h Fo (.315) START -
090000 0/7900 0j/> 0/0 OJO oO OO00 0 0
100 100 100 100
U N UUNIBBABADUUU
Leader Trailer
no component no component
200 m/m min. Components 400 m/m min.
USER DIRECTION OF FEED
a
QTY: 800 PCS. PER REEL
MM
DIMENSIONS:
(INCHES)
Temperature (°C)
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REV. 08/17 Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein and in this document are subject to specific legal disclaimers 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[®] ® **==> picture [5 x 5] intentionally omitted <==** **----- Start of picture text -----**
®
**----- End of picture text -----**
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