Tuneable RF Inductor

West Coast Magnetics' 201 series tuneable inductors are designed for use in resonant circuits with application frequencies of 1 MHZ and above. These inductors feature exceptional accuracy and stability as well as excellent shielding characteristics. Surface mount and through hole pin configurations are available.The 201 series tuneable inductors can also be supplied with a tap to meet your requirements.

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Design Constants

Part Number	Inductance,(µH) Min	Inductance, (µH) Max	Inductance, (µH) Nom	Q Min	Test Frequency, mHz
201-01	0.9	1.08	0.99	117	10
201-02	1.25	1.5	1.38	115	10
201-03	1.60	1.92	1.76	113	10
201-04	2.07	2.49	2.28	146	5.5
201-05	2.5	2.95	2.75	144	5.5
201-06	3.02	3.62	3.32	137	5.5
201-07	3.6	4.32	3.96	128	5.5
201-08	4.23	5.07	4.65	126	5.5
201-09	4.91	5.94	5.4	119	5.5
201-10	5.64	6.76	6.2	115	5.5
201-11	6.41	7.67	7.04	113	5.5
201-12	7.23	8.67	7.95	106	5.5
201-13	8.11	9.71	8.91	104	5.5
201-14	9.04	10.82	9.93	97	5.5
201-15	10.01	11.99	11.00	94	5.5
201-16	11.04	13.22	12.13	146	3.2
201-17	12.11	14.51	13.31	142	3.2
201-18	13.24	15.86	14.55	140	3.2
201-19	14.41	17.27	15.84	135	3.2
201-20	15.64	18.74	17.19	131	3.2
201-21	18.25	21.85	20.05	128	3.2
201-22	21.05	25.21	23.13	122	3.2
201-23	24.05	28.81	26.43	117	3.2
201-24	27.25	32.65	29.95	108	3.2
201-25	30.66	36.72	33.69	101	3.2
201-26	34.26	41.04	37.65	155	2.0
201-27	38.07	45.56	41.83	149	2.0
201-28	42.07	50.39	46.23	142	2.0
201-29	46.27	55.43	50.85	140	2.0
201-30	50.68	60.70	55.69	135	2.0

Note: measurements made on HP 4342 Q meter. Q minimum measured at nominal inductance value.

schematics

Surface Mount	Through Hole
click image to enlarge	click image to enlarge

Note: All materials of construction minimum Class B 130 degrees C rated.

Dimensions: Inches/mm