VLF4012AT-3R3M1R3
Power Inductor (SMD), 3.3 µH, 1.3 A, Shielded, 1.3 A, VLF Series
- Manufacturer: TDK
- Product type: SMD Power Inductors
- Inductance:3.3µH; RMS Current (Irms):1.3A; Inductor Construction:Shielded; Saturation Current (Isat):1.3A; Product Range:-; Power Inductor Case:3.7mm x 3.5mm x 1.2mm; DC Resistance Max:0.12ohm; Ind
- Inductance: 3.3µH
- Product Range: VLF Series
- Product Width: 3.5mm
- Product Height: 1.2mm
- Product Length: 3.7mm
- DC Resistance Max: 0.12ohm
- RMS Current (Irms): 1.3A
- Power Inductor Case: 3.7mm x 3.5mm x 1.2mm
- Inductance Tolerance: ± 20%
- Inductor Construction: Shielded
- Saturation Current (Isat): 1.3A
| Delivery and price | |
|---|---|
| Units per pack | 900 |
| Price | 0.566 € |
| Current stock | 10+ |
| Lead time | 30 days |
(1/2) ## ~~stk~~ | ## **SMD Inductors(Coils) For Power Line(Wound, Magnetic Shielded)** ## **Conformity to RoHS Directive** ## VLF Series VLF4012A ## **FEATURES** - Miniature size Mount area: 3.5× 3.7mm Low profile: 1.2mm max. height - Generic use for portable DC to DC converter line - High magnetic shield construction should actualize high resolution for EMC protection. - Available for automatic mounting in tape and real package. - The products do not contain lead and support lead-free soldering. ## **APPLICATIONS** DVCs, DSCs, PDAs, LCD displays, Cellular phones, HDDs, etc. **==> picture [113 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> SHAPES AND DIMENSIONS<br>**----- End of picture text -----**<br> **==> picture [160 x 137] intentionally omitted <==** **----- Start of picture text -----**<br> 3.7±0.3 1.2max.<br>Ob<br>(Include terminal area)<br>Dimensions in mm<br>RECOMMENDED PC BOARD PATTERN<br>o oo<br>L_| 2.9<br>4.7 Dimensions in mm<br>0.3<br>±<br>4R7<br>3.5<br>1.3<br>**----- End of picture text -----**<br> ## **RECOMMENDED PC BOARD PATTERN** ## **ELECTRICAL CHARACTERISTICS** |Part No.|Inductance<br>(µH)|Inductance<br>tolerance(%)|Test frequency<br>(kHz)|DC resistance(Ω)<br>max.<br>typ.|DC resistance(Ω)<br>max.<br>typ.|Rated current(A)∗<br>Based on inductance<br>change max.|Based on temperature<br>rise typ.| |---|---|---|---|---|---|---|---| |VLF4012AT-1R5M1R6|1.5|±20|100|0.079|0.069|1.8|1.6| |VLF4012AT-2R2M1R5|2.2|±20|100|0.087|0.076|1.5|1.5| |VLF4012AT-3R3M1R3|3.3|±20|100|0.12|0.1|1.3|1.3| |VLF4012AT-4R7M1R1|4.7|±20|100|0.16|0.14|1.1|1.1| |VLF4012AT-6R8MR96|6.8|±20|100|0.23|0.2|0.96|0.97| |VLF4012AT-100MR79|10|±20|100|0.35|0.3|0.80|0.79| |VLF4012AT-150MR63|15|±20|100|0.53|0.46|0.63|0.64| |VLF4012AT-220MR51|22|±20|100|0.82|0.71|0.52|0.51| |VLF4012AT-330MR39|33|±20|100|1.4|1.2|0.44|0.39| |VLF4012AT-470MR30|47|±20|100|2.3|2.0|0.36|0.30| - ∗ Rated current: Value obtained when current flows and the temperature has risen to 40°C or when DC current flows and the nominal value of inductance has fallen by 30%, whichever is smaller. - Operating temperature range: –40 to +105°C (Including self-temperature rise) ## **TYPICAL ELECTRICAL CHARACTERISTICS** ## **INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF4012AT-1R5M1R6** **==> picture [197 x 112] intentionally omitted <==** **----- Start of picture text -----**<br> 2.0 aa<br>1.5<br>Spt<br>1.0<br>SERRE<br>0.5 TTP TTP<br>0.0 ETE EET<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0<br>DC current [(] A [)]<br>H)<br>µ<br>Inductance(<br>**----- End of picture text -----**<br> ## **VLF4012AT-2R2M1R5** **==> picture [198 x 111] intentionally omitted <==** **----- Start of picture text -----**<br> 3.02.5 PTEELEeeee<br>2.0 SEECC CCC<br>1.5<br>CCE CEES<br>1.0<br>a<br>0.5<br>0.0 aCECE Perle<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0<br>DC current [(] A [)]<br>H)<br>µ<br>Inductance(<br>**----- End of picture text -----**<br> - Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications. • All specifications are subject to change without notice. 001-04 / 20060612 / e531_vlf4012a.fm (2/2) ## **TYPICAL ELECTRICAL CHARACTERISTICS** ## **INDUCTANCE vs. DC SUPERPOSITION CHARACTERISTICS VLF4012AT-3R3M1R3** **==> picture [203 x 602] intentionally omitted <==** **----- Start of picture text -----**<br> 4.0<br>3.0<br>2.0<br>1.0<br>0.0<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8<br>DC current [(] A [)]<br>VLF4012AT-6R8MR96<br>8.0<br>6.0<br>4.0<br>2.0<br>0.0<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2<br>DC current [(] A [)]<br>VLF4012AT-150MR63<br>20<br>15<br>10<br>5<br>0<br>0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8<br>DC current [(] A [)]<br>VLF4012AT-330MR39<br>50<br>40<br>30<br>20<br>10<br>0<br>0.0 0.1 0.2 0.3 0.4 0.5 0.6<br>DC current [(] A [)]<br>TEST CIRCUIT<br>C=20,000µF<br>A<br>L=0.1H<br>2 1<br>Sample<br>1: LCR meter 4285A=100kHz<br>H)<br>µ<br>Inductance(<br>H)<br>µ<br>Inductance(<br>H)<br>µ<br>Inductance(<br>H)<br>µ<br>Inductance(<br>**----- End of picture text -----**<br> ## **VLF4012AT-6R8MR96** ## **VLF4012AT-150MR63** ## **VLF4012AT-330MR39** ## **TEST CIRCUIT** ## **VLF4012AT-4R7M1R1** **==> picture [202 x 528] intentionally omitted <==** **----- Start of picture text -----**<br> 6.0<br>5.0<br>4.0<br>3.0<br>2.0<br>1.0<br>0.0<br>0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6<br>DC current [(] A [)]<br>VLF4012AT-100MR79<br>12<br>10<br>8<br>6<br>4<br>2<br>0<br>0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0<br>DC current [(] A [)]<br>VLF4012AT-220MR51<br>30<br>25<br>20<br>15<br>10<br>5<br>0<br>0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7<br>DC current [(] A [)]<br>VLF4012AT-470MR30<br>60<br>50<br>40<br>30<br>20<br>10<br>0<br>0.0 0.1 0.2 0.3 0.4 0.5<br>DC current [(] A [)]<br>H)<br>µ<br>Inductance(<br>H)<br>µ<br>Inductance(<br>H)<br>µ<br>Inductance(<br>H)<br>µ<br>Inductance(<br>**----- End of picture text -----**<br> 2: DC constant current • All specifications are subject to change without notice. 001-04 / 20060612 / e531_vlf4012a.fm
Updated at March 21, 2026
TDK Corporation is a globally recognized leader in electronic components and magnetic materials. Founded in 1935 to commercialize ferrites, the Tokyo-based company has evolved into a comprehensive manufacturer of high-performance passive components, sensors, and power electronics. TDK’s advanced materials technology serves as the foundation for its extensive portfolio, driving innovation across automotive, industrial, consumer electronics, and communication technologies. Our selection of TDK components heavily features their industry-leading passive components, with a primary focus on magnetics. TDK excels in manufacturing reliable inductive solutions, offering a vast array of power inductors and RF inductors optimized for demanding power management and high-frequency applications. Furthermore, their expertise in electromagnetic compatibility is showcased through a comprehensive range of EMC and RFI suppression products. This includes common mode chokes, power line filters, and specialized shielding materials designed to ensure superior signal integrity in complex designs. Beyond inductors and filtering components, TDK provides robust circuit protection and sensing solutions essential for modern engineering. The portfolio includes precision temperature sensing and compensation NTC thermistors, alongside TVS varistors and inrush current limiting components that safeguard sensitive electronics. Complemented by fixed value inductors, supercapacitors, and charging coils, TDK's versatile product offering delivers the reliability and performance required for sophisticated circuit design.
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