Technical Data DS4313

Effective June 2017

Supersedes Sepetember 2011

Product features

•

13.7 x 12.9 x 8.0mm surface mount package

•

High current handling capability, compact

footprint

•

Ferrite core material

•

Inductance range from 0.110µH to 0.440µH

•

Current range from 32 to 120 amps

•

Frequency range up to 2MHz

•

Halogen free, lead free, RoHS compliant

Applications

•

Voltage regulator modules (VRMs) for servers

and microprocessors

•

Multi-phase buck inductors

•

High frequency, high current switching power

supplies

•

Storage temperature range (component):

-40 °C to +125 °C

•

Operating temperature range: -40 °C to +125 °C

(ambient plus self-temperature rise)

•

Solder reflow temperature:

J-STD-020 (latest revision) compliant

FP1308

High frequency, high current power inductors

HF

FREE

SMD Device

Environmental data

1 Open Circuit Inductance (OCL) Test Parameters: 100kHz, 1.0Vrms, 0.0Adc

2Irms: DC current for an approximate temperature rise of 40°C without core loss. Derating is

necessary for AC currents. PCB pad layout, trace thickness and width, air-flow and proximity of

other heat generating components will affect the temperature rise. It is recommended the part

temperature not exceed 125°C under worst case operating conditions verified in the end

application.

3Isat: Peak current for approximately 20% rolloff at +25°C.

4 K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * ΔI. Bp-p (mT): (Gauss), K:

(K-factor from table), L: (inductance in

μH), ΔI (peak-to-peak ripple current in amps).

5 Part Number Definition: FP1308-xxx-R

• FP1308 = Product code and size

• xxx= Inductance value in

μH, R = decimal point. If no “R” is present, then

third character = # of zeros.

• “-R” suffix = RoHS compliant

Product Specifications

Part

Rated

OCL

1

Irms

2

Isat

3

DCR (m

Ω) @

DCR (m

Ω) @

K-factor

4

Number

5

Inductance (

μH)

± 10% (

μH)

(Amps)

(Amps)

25°C Typical

25°C Max

FP1308-R11-R

0.110

0.110

68

120

0.20

0.24

21.330

FP1308-R21-R

0.210

0.210

68

72

0.20

0.24

21.333

FP1308-R26-R

0.260

0.260

68

60

0.20

0.24

21.335

FP1308-R32-R

0.320

0.320

68

45

0.20

0.24

21.340

FP1308-R44-R

0.440

0.440

68

32

0.20

0.24

21.366