One Magnetics Pkwy, Gowanda, NY 14070 • (t) 716-532-2234 • (f) 716-532-2702 • sales@gowanda.com
www.gowanda.com
KMSMLF High Efficiency Toroidal Inductors
POWER INDUCTORS - SURFACE MOUNT
PART L µH CURRENT INCR.I INCR.I DCR SRF A B C D E F
NUMBER @ 1kHz RATING* ADC** ADC** OHMS MHz DIM DIM DIM DIM DIM DIM
± 10% ADC ∆L 10% ∆L 20% MAX. MIN. MAX. MAX. MAX. NOM. NOM. NOM.
121KM1002SMLF 10 8.27 5.30 9.10 .010 20.0 .940 (23.88) .940 (23.88) .510 (12.95) .700 (17.88) .820 (20.83) .080 (2.03)
121KM2502SMLF 25 6.34 3.30 5.70 .017 8.0 .940 (23.88) .940 (23.88) .510 (12.95) .700 (17.88) .820 (20.83) .080 (2.03)
121KM5002SMLF 50 4.77 2.30 4.00 .030 4.0 .940 (23.88) .940 (23.88) .510 (12.95) .700 (17.88) .820 (20.83) .080 (2.03)
121KM7502SMLF 75 3.90 1.80 3.10 .045 3.0 .940 (23.88) .940 (23.88) .510 (12.95) .700 (17.88) .820 (20.83) .080 (2.03)
121KM1003SMLF 100 3.24 1.60 2.80 .065 2.0 .940 (23.88) .940 (23.88) .510 (12.95) .700 (17.88) .820 (20.83) .080 (2.03)
121KM1503SMLF 150 2.68 1.30 2.20 .095 1.5 .940 (23.88) .940 (23.88) .510 (12.95) .700 (17.88) .820 (20.83) .080 (2.03)
121KM2503SMLF 250 2.07 0.90 1.70 .160 1.0 .940 (23.88) .940 (23.88) .510 (12.95) .700 (17.88) .820 (20.83) .080 (2.03)
050KM1002SMLF 10 7.36 1.70 3.30 .010 35.0 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
050KM2502SMLF 25 5.20 1.00 1.90 .020 10.0 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
050KM5002SMLF 50 3.93 0.70 1.30 .035 7.0 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
050KM7502SMLF 75 3.47 0.60 1.10 .045 5.0 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
050KM1003SMLF 100 3.14 0.50 0.96 .055 4.0 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
050KM1503SMLF 150 2.33 0.40 0.78 .100 3.0 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
050KM2003SMLF 200 1.97 0.35 0.65 .140 2.0 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
050KM2503SMLF 250 1.84 0.31 0.59 .160 1.5 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
050KM3303SMLF 330 1.69 0.27 0.50 .190 1.0 .700 (17.78) .670 (17.02) .405 (10.28) .620 (15.75) .590 (14.99) .060 (1.52)
040KM1002SMLF 10 4.84 1.30 2.50 .017 35.0 .565 (14.35) .560 (14.22) .360 (9.14) .520 (13.21) .460 (11.68) .060 (1.52)
040KM2502SMLF 25 3.38 0.70 1.30 .035 20.0 .565 (14.35) .560 (14.22) .360 (9.14) .520 (13.21) .460 (11.68) .060 (1.52)
040KM5002SMLF 50 1.90 0.56 1.00 .110 13.0 .565 (14.35) .560 (14.22) .360 (9.14) .520 (13.21) .460 (11.68) .060 (1.52)
040KM7502SMLF 75 1.69 0.45 0.86 .140 9.0 .565 (14.35) .560 (14.22) .360 (9.14) .520 (13.21) .460 (11.68) .060 (1.52)
040KM1003SMLF 100 1.60 0.40 0.76 .155 6.0 .565 (14.35) .560 (14.22) .360 (9.14) .520 (13.21) .460 (11.68) .060 (1.52)
040KM1503SMLF 150 1.45 0.33 0.60 .190 3.5 .565 (14.35) .560 (14.22) .360 (9.14) .520 (13.21) .460 (11.68) .060 (1.52)
040KM2003SMLF 200 1.12 0.30 0.56 .320 3.0 .565 (14.35) .560 (14.22) .360 (9.14) .520 (13.21) .460 (11.68) .060 (1.52)
040KM2503SMLF 250 1.05 0.25 0.48 .360 2.5 .565 (14.35) .560 (14.22) .360 (9.14) .520 (13.21) .460 (11.68) .060 (1.52)
030KM1002SMLF 10 2.56 0.80 1.60 .050 35.0 .440 (11.18) .435 (11.05) .360 (9.14) .400 (10.16) .360 (9.14) .060 (1.52)
030KM2502SMLF 25 2.16 0.50 0.96 .070 25.0 .440 (11.18) .435 (11.05) .360 (9.14) .400 (10.16) .360 (9.14) .060 (1.52)
030KM5002SMLF 50 1.81 0.35 0.68 .100 10.0 .440 (11.18) .435 (11.05) .360 (9.14) .400 (10.16) .360 (9.14) .060 (1.52)
030KM7502SMLF 75 1.62 0.28 0.54 .125 7.0 .440 (11.18) .435 (11.05) .360 (9.14) .400 (10.16) .360 (9.14) .060 (1.52)
030KM1003SMLF 100 1.50 0.23 0.50 .145 6.0 .440 (11.18) .435 (11.05) .360 (9.14) .400 (10.16) .360 (9.14) .060 (1.52)
030KM1503SMLF 150 1.33 0.20 0.40 .185 3.5 .440 (11.18) .435 (11.05) .360 (9.14) .400 (10.16) .360 (9.14) .060 (1.52)
030KM2003SMLF 200 1.04 0.17 0.34 .300 3.0 .440 (11.18) .435 (11.05) .360 (9.14) .400 (10.16) .360 (9.14) .060 (1.52)
030KM2503SMLF 250 .96 0.15 0.30 .355 3.0 .440 (11.18) .435 (11.05) .360 (9.14) .400 (10.16) .360 (9.14) .060 (1.52)
180KM1002SMLF 10 1.60 0.43 0.86 .100 35.0 .340 (8.64) .340 (8.64) .270 (6.86) .300 (7.62) .270 (6.86) .060 (1.52)
180KM2502SMLF 25 1.33 0.25 0.50 .145 30.0 .340 (8.64) .340 (8.64) .270 (6.86) .300 (7.62) .270 (6.86) .060 (1.52)
180KM5002SMLF 50 1.12 0.18 0.35 .205 10.0 .340 (8.64) .340 (8.64) .270 (6.86) .300 (7.62) .270 (6.86) .060 (1.52)
180KM7502SMLF 75 0.99 0.15 0.28 .260 8.0 .340 (8.64) .340 (8.64) .270 (6.86) .300 (7.62) .270 (6.86) .060 (1.52)
180KM1003SMLF 100 0.92 0.13 0.25 .300 6.0 .340 (8.64) .340 (8.64) .270 (6.86) .300 (7.62) .270 (6.86) .060 (1.52)
NOTES:
• Operating temperature -55°C to +130°C
*Rated current is based on a 40°C
temperature rise at an ambient temperature
of 90°C.
**Incremental current is the approximate
value that will cause a percentage drop in
inductance as indicated in the table.
TAPE AND REEL SPECS: - 121 Parts:
Pcs./Reel maximum: 100
Pitch between parts: 36 mm
Tape width: 44 mm
Reel diameter inches: 13
TAPE AND REEL SPECS: - 050 Parts:
Pcs./Reel maximum: 170
Pitch between parts: 32 mm
Tape width: 32 mm
Reel diameter inches: 13
XXXKM
XXXXSM A
B
TOP VIEW
C
SIDE VIEW
RECOMMENDED FOOTPRINT
E
D
F
in. (mm)
TAPE AND REEL SPECS: - 040 Parts:
Pcs./Reel maximum: 290
Pitch between parts: 24 mm
Tape width: 24 mm
Reel diameter inches: 13
TAPE AND REEL SPECS: - 030 Parts:
Pcs./Reel maximum: 430
Pitch between parts: 16 mm
Tape width: 24 mm
Reel diameter inches: 13
TAPE AND REEL SPECS: - 180 Parts:
Pcs./Reel maximum: 750
Pitch between parts: 12 mm
Tape width: 24 mm
Reel diameter inches: 13
