# Power Inductor (SMD), 4.7 µH, 1.5 A, Semishielded, 1.2 A, SRN4012T Series ![Product image](https://novapart.co/image/farnell:2467453/) **URL**: https://novapart.co/products/SRN4012T-4R7M/power-inductor-smd-47-h-15-a-semishielded-12 **SKU**: SRN4012T-4R7M **Manufacturer**: BOURNS **Category**: Passive Components || Inductors || Power Inductors || SMD Power Inductors **Price**: €0.1070 **Stock**: 1000+ **Lead Time**: 92 days (indicative) ## Description Inductance:4.7µH; RMS Current (Irms):1.5A; Inductor Construction:Semishielded; Saturation Current (Isat):1.2A; Product Range:SRN4012T Series; Power Inductor Case:4mm x 4mm x 1.2m ## Specifications | Parameter | Value | |---|---| | Svhc | No SVHC (04-Feb-2026) | | Inductance | 4.7µH | | Product Range | SRN4012T Series | | Product Width | 4mm | | Product Height | 1.2mm | | Product Length | 4mm | | Dc Resistance Max | 0.095ohm | | Rms Current (Irms) | 1.5A | | Inductance Tolerance | ± 20% | | Inductor Construction | Semishielded | | Inductor Case / Package | - | | Saturation Current (Isat) | 1.2A | ## Datasheet 📄 [Download PDF](https://novapart.co/datasheet/farnell:2467453/) ## **Features** ■ Semi-shielded construction - Low profi le: 1.2 mm - Inductance range: 0.47 to 22 µH - Rated current up to 3.2 A - RoHS compliant* and halogen free** ## **Applications** ■ DC/DC converters ■ Notebook computers ■ Digital video cameras ■ HDDs ■ Cellphones ■ Televisions, LCD displays ## **SRN4012T Series - Semi-shielded Power Inductors** BOURNS [ix ~~**Electrical Specif cations @ 25 °C**~~ **Inductance Q (Min.) @ 100 KHz / 1 V @ SRF DCR 100 kHz / (MHz) (** Ω **) Irms Isat Bourns Part No. L (** μ **H) Tol. % 1 V Typ. ±20 % (A) (A)** ~~pyes~~ SRN4012T-R47MSRN4012T-1R0M 0.471.0 ± 20± 20 ~~ss~~ 66 ~~ft~~ 140100 ~~esft~~ 0.0250.042 3.22.2 2.84 SRN4012T-1R5M 1.5 ± 20 6 90 0.05 2 2.2 ~~a~~ SRN4012T-2R2M 2.2 ± 20 6 70 0.06 1.9 1.65 SRN4012T-3R3M 3.3 ± 20 6 60 0.07 1.7 1.4 ~~a~~ SRN4012T-4R7M 4.7 ± 20 6 45 0.095 1.5 1.2 SRN4012T-6R8M 6.8 ± 20 6 35 0.125 1.3 0.9 ~~a~~ SRN4012T-100M 10 ± 20 10 30 0.18 1.1 0.8 SRN4012T-150M 15 ± 20 10 24 0.26 0.75 0.65 ~~a~~ SRN4012T-220M 22 ± 20 10 18 0.4 0.62 0.5 ## ~~**General Specif cations**~~ Operating Temperature ................................. -40 °C to +125 °C (Temperature rise included) Storage Temperature .. -40 °C to +125 °C Resistance to Solder Heat ...............................+260 °C for 10 sec. Temperature Rise .....40 °C at rated Irms Rated Current ............ Inductance drops 30 % at Isat ## ~~**Materials**~~ Core ..............................................Ferrite Wire ............................Enameled copper Terminal Finish ...................................Sn Coating .................Magnetic epoxy resin Packaging ..... 4500 pcs. per 13-inch reel **==> picture [494 x 346] intentionally omitted <==** **----- Start of picture text -----**
Soldering Prof le Product Dimensions
Preheating Soldering Natural Cooling 4.0 ± 0.2 1.2
(.157 ± .008) (.047)
TP (260 °C / 10 Sec. Max.) MAX.
TF ee e e e
tp (245 °C, 20~40 Sec.)
217 °C 4.0 ± 0.2
200 °C (.157 ± .008)
150°C 60~150 Sec.
60~180
- _ Sec. — 4 |
1.1
480 Sec. Max. REF.
25 (.043)
Time (Seconds)
Electrical Schematic How to Order
SRN4012T - R47M
Model 2.5
(.098)
== Value Code (see table) : 1.1 REF.
REF.
(.043)
Recommended Layout
4.2
(.165)
rn a e
4.2
(.165)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. n k||
Temperature (°C)
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4.2
(.165)
rn a e
4.2
(.165)
n k||
1.2
—1 (.047)
MM
DIMENSIONS:
(INCHES)
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**Bourns follows the prevailing defi nition of “halogen free” in the industry. 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 Chlorine (Cl) content is 1500 ppm or less. Specifi cations are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specifi c applications. ## **SRF0504 Series - Line FilterN4012T Series - S m -shielded Power Inductors** ## ~~**L vs. IDC**~~ **==> picture [134 x 461] intentionally omitted <==** **----- Start of picture text -----**
SRN4012T-R47M
0.8
0.6
0.4
0.2
0
0 1 2 3 4 5
DC Current (A)
SRN4012T-2R2M
4
3
2
1
0
0 0.7 1.4 2.1 2.8
DC Current (A)
SRN4012T-6R8M
12
9
6
3
0
0 0.4 0.8 1.2 1.6
DC Current (A)
SRN4012T-220M
40
30
20
10
0
0 0.2 0.4 0.6 0.8 1.0
DC Current (A)
H)
μ
Inductance (
H)
μ
Inductance (
H)
μ
Inductance (
H)
μ
Inductance (
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SRN4012T-1R0M SRN4012T-1R5M
2.0 2.5
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0 0
0 1 2 3 4 5 0 1 2 3 4
DC Current (A) DC Current (A)
SRN4012T-3R3M SRN4012T-4R7M
5.0 8
4.5 6
3.0 4
1.5 2
0 0
0 0.5 1.0 1.5 2.0 0 0.5 1.0 1.5 2.0
DC Current (A) DC Current (A)
SRN4012T-100M SRN4012T-150M
20 20
15
15
15
10
10
5 5
0 0
0 0.3 0.6 0.9 1.2 0 0.2 0.4 0.6 0.8 1.0
DC Current (A) DC Current (A)
H)Inductance (μ H)Inductance (μ
H)Inductance (μ H)Inductance (μ
H)Inductance (μ H)Inductance (μ
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Specifi cations are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specifi c applications. ## **SRF0504 Series - Line FilterN4012T Series - S m -shielded Power Inductors** ## ~~**Packaging Specif cations**~~ **==> picture [429 x 343] intentionally omitted <==** **----- Start of picture text -----**
12.0 ± 1.5
(.472 ± .059)
2.0 ± 0.5
(.079 ± .020) 13.5 ± 0.5
13.2 ± 0.5 (.531 ± .020)
(.520 ± .020) 10.5
DIA. (.413) [R]
1.8 0.5
100.0 ± 0.5 330 ± 0.5 R (.071) (.020) [R]
(3.937 ± .020) (12.99 ± .020)DIA.
120 °
4.0 ± 0.1 2.0 ± 0.05 0.25 ± 0.05
(.157 ± .004) (.079 ± .002) (.010 ± .002)
4.35 ± 0.1
(.171 ± .004)
12.0 ± 0.1
(.472 ± .004)
BOTTOM VIEW
1.55 ± 0.1
8.0 ± 0.1 4.50 ± 0.1 (.061 ± .004)
(.315 ± .004) (.177 ± .004)
USER DIRECTION OF FEED
QTY: 4500 PCS. PER REEL
MM
DIMENSIONS:
(INCHES)
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