2

Technical Data 4350

Effective June 2017

FP1109

High frequency, high current power inductors

www.eaton.com/electronics

Packaging information - mm

Dimensions- mm

1 Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.10Vrms, 0.0Adc

2 Full Load Inductance (FLL) Test Parameters: 100kHz, 0.1Vrms,Isat1

3Irms: 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.

4Isat1: Peak current for approximately 30% rolloff at +25°C.

5Isat2: Peak current for approximately 30% rolloff at +125°C.

6 K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * ΔI * 10

-3,B

p-p : (Gauss),

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

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

7 Part Number Definition: FP1109-xxx-R

• FP1109 = 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 Number

7

OCL

Irms

FP1109-R20-R

205

122

69

52

233

FP1109-R23-R

247

147

55

41

233

FP1109-R27-R

270

160

51

38

233

FP1109-R33-R

311

185

35

44

33

0.42 ±10%

233

FP1109-R47-R

463

275

27

20

233

FP1109-R58-R

548

325

22.5

17

233

FP1109-1R0-R

950

565

11.5

8.5

233

Top V iew

S ide V iew

R ecom m ended P ad Layout

Schem atic

1

2

2.5 nom .

(2x)

1

2

3.0

(2X )

3.0

(2X )

11.4

11.2

max

11.2 m ax

9.0

max

4.10 ref

(2X )

2.03 ref

Front V iew

Part Marking: FP1109

xxx = Inductance value in

μH. (R = Decimal point). If no “R” is present, then last character is # of zeros

wwllyy = Date code

R = Revision level

Section A-A

9.3

1.5 dia. +0.1/-0.0

1.5 dia. min

4.00

2.00

20.00

1.75

11.50

24.0 ±0.3

User direction of feed

11.4

11.4

1

2

16.4

17.5

2.0

Supplied in tape-and-reel packaging, 350 parts per reel, 13” diameter reel.