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LSM-Series Switchmode Inductors Unshielded Surface Mount Features: High DC current bias capability 120°C rating (ambient plus rise) Used for output and EMI inductor applications Very low profiles available Open Magnetic circuit construction Compact and thin

The LSM series of unshielded inductors are wound on ferrite cores and cover all common inductance values. Precision’s unshielded power inductors can be used for uncritical applications or for low power circuits. Precision parts are a low cost alternative or a second source to other major surface mount inductor manufactures.

How to choose your model:

1. Calculate the energy storage needed based on inductance and current
2. No de-rating needed for ambients up to 80°

Precision Model Number		A ± 0.3	B	Φ C ± 0.3	D Type	E	F	G	PDF
LSM-05040-xxxx	mm	4	3.2 ± 0.3	4.5	1.5	4.5	2.1	0.8
	in	0.16	0.13 ± 0.01	0.18	0.06	0.18	0.08	0.03
LSM-08071-xxxx	mm	7	5.0 ± 0.3	7.8	2.5	7.5	3.05	1.9
	in	0.28	0.20 ± 0.01	0.31	0.10	0.30	0.12	0.07
LSM-10091-xxxx	mm	9	5.4 ± 0.3	10	2.9	9.5	3.65	2.5
	in	0.35	0.21 ± 0.01	0.39	0.11	0.37	0.14	0.10

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Precision Model Number		A (max)	B (max)	C (max)	D ± 0.2	E (max)	F	G	H	PDF
LSM-07070-xxxx	mm	7.4	7.4	5.1	2	5.4	3	2	4.4
	in	0.29	0.29	0.20	0.08	0.21	0.12	0.08	0.17

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Precision Model Number		A (max)	B (max)	C ± 0.3	D (max)	E ± 0.3	F ± 0.3	G ± 0.3	I	J	K	PDF
LSM-13092-xxxx	mm	12.95	9.4	8.38	3	2.54	2.54	7.62	2.79	2.92	7.37
	in	0.51	0.37	0.33	0.12	0.10	0.10	0.30	0.11	0.11	0.29

LSM-05040 Series
Available in PDF format
[back to mechanical spec]
Precision Model Number	Inductance (µH +/-20%) (Note 1)	DC Resistance (Ohms Max.)	Rated Current (Amps. Min.) (Note 2)
LSM-05040-01R0	1	0.048	2.56
LSM-05040-01R4	1.4	0.056	2.52
LSM-05040-01R8	1.8	0.063	1.95
LSM-05040-02R2	2.2	0.071	1.75
LSM-05040-02R7	2.7	0.078	1.58
LSM-05040-03R3	3.3	0.086	1.44
LSM-05040-03R9	3.9	0.093	1.33
LSM-05040-04R7	4.7	0.108	1.15
LSM-05040-05R6	5.6	0.125	0.99
LSM-05040-0100	10	0.182	1.04
LSM-05040-0120	12	0.21	0.97
LSM-05040-0150	15	0.235	0.85
LSM-05040-0220	22	0.378	0.68
LSM-05040-0270	27	0.522	0.62
LSM-05040-0330	33	0.54	0.56
Notes: 1.) Inductance Measured at 1Khz, 0.1Vrms, without DC current. 2.) Rated DC current at which inductance will be decreased by 10% from it initial value or the DC current at a temperature rise of 40 degrees Centigrade or whichever is smaller.

LSM-08071 Series
Available in PDF format
[back to mechanical spec]
Precision Model Number	Inductance (µH +/-20%) (Note 1)	DC Resistance (Ohms Max.)	Rated Current (Amps. Min.) (Note 2)
LSM-08071-0100	10	0.07	2.3
LSM-08071-0120	12	0.08	2
LSM-08071-0150	15	0.09	1.8
LSM-08071-0220	22	0.11	1.5
LSM-08071-0270	27	0.12	1.3
LSM-08071-0330	33	0.13	1.2
LSM-08071-0390	39	0.16	1.1
LSM-08071-0470	47	0.18	1.04
LSM-08071-0560	56	0.24	0.94
LSM-08071-0680	68	0.28	0.85
LSM-08071-0820	82	0.37	0.78
LSM-08071-0101	100	0.43	0.72
LSM-08071-0121	120	0.47	0.66
LSM-08071-0181	180	0.71	0.51
LSM-08071-0221	220	0.96	0.49
LSM-08071-0271	270	1.11	0.42
LSM-08071-0331	330	1.26	0.4
LSM-08071-0391	390	1.77	0.36
LSM-08071-0471	470	1.96	0.34
Notes: 1.) Inductance Measured at 1Khz, 0.1Vrms, without DC current. 2.) Rated DC current at which inductance will be decreased by 10% from it initial value or the DC current at a temperature rise of 40 degrees Centigrade or whichever is smaller.

LSM-10091 Series
Available in PDF format
[back to mechanical spec]
Precision Model Number	Inductance (µH +/-20%) (Note 1)	DC Resistance (Ohms Max.)	Rated Current (Amps. Min.) (Note 2)
LSM-10091-0100	10	0.06	2.6
LSM-10091-0120	12	0.07	2.45
LSM-10091-0150	15	0.08	2.27
LSM-10091-0180	18	0.09	2.15
LSM-10091-0220	22	0.1	1.95
LSM-10091-0330	33	0.12	1.5
LSM-10091-0390	39	0.14	1.37
LSM-10091-0470	47	0.17	1.28
LSM-10091-0560	56	0.19	1.17
LSM-10091-0680	68	0.22	1.11
LSM-10091-0820	82	0.25	1
LSM-10091-0101	100	0.35	0.97
LSM-10091-0121	120	0.4	0.89
LSM-10091-0151	150	0.47	0.78
LSM-10091-0221	220	0.73	0.66
LSM-10091-0271	270	0.97	0.57
LSM-10091-0331	330	1.15	0.52
LSM-10091-0471	470	1.48	0.42
LSM-10091-0561	560	1.9	0.33
LSM-10091-0681	680	2.25	0.28
LSM-10091-0821	820	2.55	0.24
Notes: 1.) Inductance Measured at 1Khz, 0.1Vrms, without DC current. 2.) Rated DC current at which inductance will be decreased by 10% from it initial value or the DC current at a temperature rise of 40 degrees Centigrade or whichever is smaller.

LSM-07070 Series
Available in PDF format
[back to mechanical spec]
Precision Model Number	Inductance (µH +/-20%) (Note 1)	DC Resistance (Ohms Max.)	Rated Current (Amps. Min.) (Note 2)
LSM-07070-0100	10	0.07	1.56
LSM-07070-0120	12	0.08	1.44
LSM-07070-0150	15	0.09	1.36
LSM-07070-0180	18	0.1	1.28
LSM-07070-0220	22	0.12	1.17
LSM-07070-0270	27	0.14	1.07
LSM-07070-0330	33	0.16	1
LSM-07070-0470	47	0.22	0.84
LSM-07070-0560	56	0.29	0.72
LSM-07070-0680	68	0.34	0.66
LSM-07070-0820	82	0.46	0.58
LSM-07070-0101	100	0.55	0.51
LSM-07070-0121	120	0.67	0.42
LSM-07070-0151	150	0.9	0.37
LSM-07070-0271	270	1.55	0.28
Notes: 1.) Inductance Measured at 1Khz, 0.1Vrms, without DC current. 2.) Rated DC current at which inductance will be decreased by 10% from it initial value or the DC current at a temperature rise of 40 degrees Centigrade or whichever is smaller.

LSM-13092 Series
Available in PDF format
[back to mechanical spec]
Precision Model Number	Inductance (µH +/-20%) (Note 1)	DC Resistance (Ohms Max.)	Rated Current (Amps. Min.) (Note 2)
LSM-13092-0100	10	0.038	2.4
LSM-13092-0150	15	0.046	2
LSM-13092-0220	22	0.085	1.6
LSM-13092-0330	33	0.1	1.4
LSM-13092-0470	47	0.14	1
LSM-13092-0680	68	0.2	0.9
LSM-13092-0101	100	0.28	0.7
LSM-13092-0151	150	0.4	0.6
LSM-13092-0221	220	0.61	0.5
LSM-13092-0331	330	1.02	0.4
LSM-13092-0471	470	1.27	0.3
LSM-13092-0681	680	2.02	0.2
LSM-13092-0102	1000	3	0.1
Notes: 1.) Inductance Measured at 1Khz, 0.1Vrms, without DC current. 2.) Rated DC current at which inductance will be decreased by 10% from it initial value or the DC current at a temperature rise of 40 degrees Centigrade or whichever is smaller.