KMP_1800RC_B06 Page 1 of 2

1800R Series

Radial Lead Inductors

www.murata-ps.com

www.murata-ps.com/support

For full details go to

www.murata-ps.com/rohs

FEATURES

RoHS compliant

Radial format

4.7μH to 10mH

Low DC resistance

Compact size

MIL-I-23053/5 class III sleeving

Fully tinned leads

Supplied in packs of 100

Custom & axial parts available

Backward compatible with

Sn/Pb soldering systems

DESCRIPTION

The 1800R Series of inductors are particularly

suited to use with a wide variety of switching

regulators. Offering high current handling with a

small footprint, the devices are ideal where space

is at a premium.

SELECTION GUIDE

Order Code

Inductance

DC Resistance

Q @ f kHz

SRF

±10%

Max.

Max.

Nom.

Nom.

μH

A

mΩ

Q

f

MHz

18R472C

5.35

9.0

106

1000

35.1

18R682C

6.8

4.15

12.0

73

500

26.3

18R103C

10.0

3.45

15.0

59

500

23.8

18R153C

15.0

3.00

18.0

55

500

17.0

18R223C

22.0

2.42

25.0

51

500

14.1

18R333C

33.0

2.00

40.0

48

500

11.5

18R473C

47.0

1.65

55.0

46

500

9.85

18R683C

68.0

1.35

70.0

27

100

8.29

18R104C

100.0

1.20

100.0

40

100

7.40

18R154C

150.0

1.10

165.0

40

100

5.58

18R224C

220.0

0.90

230.0

39

100

4.00

18R254C

250.0

0.80

255.0

40

100

3.85

18R334C

330.0

0.73

335.0

49

100

3.57

18R474C

470.0

0.60

465.0

50

100

2.81

18R684C

680.0

0.53

630.0

48

100

2.43

18R105C

1.0mH

0.44

1.0Ω

92

50

1.82

18R155C

1.5mH

0.33

1.5Ω

106

50

1.60

18R225C

2.2mH

0.30

2.2Ω

106

50

1.41

18R335C

3.3mH

0.22

3.5Ω

139

50

1.04

18R475C

4.7mH

0.20

4.6Ω

126

40

0.87

18R685C

6.8mH

0.15

7.0Ω

143

40

0.71

18R106C

10.0mH

0.13

12.0Ω

142

40

0.58

TYPICAL CORE/WIRE CHARACTERISTICS

Inductance Temperature

Coefficient

Resistance Temperature

Coefficient

Curie Temperature

(T

C

)

Saturation Flux

(B

SAT

)

430ppm

4000ppm

190°C

325mT

ABSOLUTE MAXIMUM RATINGS

Operating free air temperature range

0°C to 70°C

Storage temperature range

-55°C to 125°C

Peak wave solder temperature

300˚C for 10 seconds

Pin finish

Bright tin

All specifications typical at T

A

=25°C

1 Maximum DC current occurs when either the inductance falls to 90% of its nominal value or when its temperature rise reaches 30°C,

whichever is sooner.

2 Tolerance ±15%.

3 For further information, please visit www.murata-ps.com/rohs