2

Technical Data 10227

Effective September 2017

FP1108R

High frequency, high current power inductors

www.eaton.com/electronics

Dimensions - mm

Product specifications

1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.1 V

0.0 Adc, +25 °C

2. Full Load Inductance (FLL) Test Parameters: 100 kHz, 0.1 V

3. I

loss. Derating is necessary for AC currents. PCB layout, trace thickness and

width, air-flow, and proximity of other heat generating components will affect

the temperature rise. It is recommended that the temperature of the part not

exceed +125 °C under worst case operating conditions verified in the end

application.

4. I

+25 °C (R10 10%)

5. I

6. Isat3 : Peak current for approximately 20% (R10 10%) rolloff @ +100 °C

7. Isat4: Peak current for approximately 20% (R10 10%) rolloff @ +125 °C

8. K-factor: Used to determine B

B

∆I (peak to peak ripple current in amps).

9. Part Number Definition: FP1108Rx-yyy-R

- FP1108Rx = Product code and size

- Rx = DCR indicator

- yyy= Inductance value in µH

- “-R” suffix = RoHS compliant

(nH) ±10%

(nH)

I

rms

3

(A)

I

4

(A)

I

5

(A)

I

6

(A)

I

7

(A)

DCR

FP1108R1-R10-R

100

81

65

100+

96

94

90

0.29±5%

330

FP1108R1-R15-R

150

110

77

72

66

63

330

FP1108R1-R18-R

180

132

65

61

58

50

330

FP1108R1-R21-R

210

151

55

51

48

45

330

DCR measured from point “A” to point “B”

Part marking: FP1108R1 (Product code and size), xxx = Inductance value in µH, wwllyy= date code, R= revision level

Tolerances are ±0.15 millimeters unless stated otherwise

PCB tolerances are ±0.1millimeters unless otherwise specified.

All soldering surfaces to be be coplanar within 0.1 millimeters.

Termination finish: matte Sn with Ni underplate

Do not route traces or vias underneath inductor

Top View

Side View

Bottom View

Recommended Pad Layout

Schematic

7.7

B

2.1

+0.3/-0.2

±0.2

FP1108R1

0.2

xxx

10.7

typ.

6.7

11.4

wwllyy R

±0.3

typ.

2.0

±0.2

3.10 (2x)

A

2.50 (2x)

Front View

7.5

max

Packaging information - mm

1.5 dia

1.75

4.0

A

2.0

11.5

FP1108R1

24

xxx

±0.3

11.2

wwllyy R

7.7

16.0

A

8.2

1.5 dia

User Direction of Feed

Section A-A

Supplied in tape and reel packaging, 500 parts per 13” diameter reel,