291A FRONTIER | Alldatasheet
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SMD Air Coil: P/N 291A & 291B Series Rev. B Feb. 01 2007. Page: 1 of 2 Frontier Electronics Corp. 667 E. COCHRAN STREET, SIMI VALLEY, CA 93065 TEL: (805) 522-9998 FAX: (805) 522-9989 E-mail: frontiersales@frontierusa.com Web: http://www.frontierusa.com SMD Air Wound Coils— 291A & 291B series A. Electrical specification Part No. Turns L (nH) Tolerance. Q (Min.) Test Freq. DCR max. (mΩ) SRF min. (GHz) I DC (A max.) 291A-01 1 2.5 K 145 150 MHz 1.1 12.5 4 291A-02 2 5.0 K, J 140 150 MHz 1.8 6.5 4 291A-03 3 8.0 J, G 140 150 MHz 2.6 5.0 4 291A-04 4 12.5 J, G 137 150 MHz 3.4 3.3 4 291A-05 5 18.5 J, G 132 150 MHz 3.9 2.5 4 291B-06 6 17.5 J, G 100 150 MHz 4.5 2.2 4 291B-07 7 22.0 J, G 102 150 MHz 5.2 2.1 4 291B-08 8 28.0 J, G 105 150 MHz 6.0 1.8 4 291B-09 9 35.5 J, G 112 150 MHz 6.8 1.5 4 291B-10 10 43.0 J, G 106 150 MHz 7.9 1.2 4 B. Mechanical dimensions: (Unit: mm) Series No. a b c d e Mechanical dimension Land Pattern C. Land Pattern: (Unit: mm) Series No. a b c d e D. Notes: 1. Tolerance: a. 291A-01: K = ± 10 % only. c. 291A-03 through 291A-05 and for 291B-06 through 291B-10: J = ± 5 % or G = ± 2 % 2. Inductance & Q measured on the HP4291B with HP16193 test fixture. 3. SRF measured on the HP8720D or HP8753E. 4. Operating temp. : -40ºC TO +125ºC. 5. For Temperature Rise: 15ºC. 6. Inductance Range: 291A & 291B: From 2.5nH to 43.0nH. (@ 25ºC.) 7. Equivalent to Coilcraft’s “Mini Spring” Air Core Inductor. 8. RoHS compliant.
SMD Air Coil: P/N 291A & 291B Series Rev. B Feb. 01 2007. Page: 2 of 2 Frontier Electronics Corp. 667 E. COCHRAN STREET, SIMI VALLEY, CA 93065 TEL: (805) 522-9998 FAX: (805) 522-9989 E-mail: frontiersales@frontierusa.com Web: http://www.frontierusa.com SMD Air Wound Coils— 291A & 291B series E. Characteristic curve: 1. L vs. Frequency: 291A Series 291B Series 2. Typical Q vs. Frequency: 291A Series 291B Series 10 100 1000 100 Frequency (MHz) Inductance (nH) 291A-05 291A-04 291A-03 291A-02 291A-01 100 150 10 100 1000 10000 Frequency (MHz) Inductance (nH) 291B-06 291B-07 291B-08 291B-09 291B-10 120 150 180 210 100 1000 10000 Frequency (MHz) Q 291A-01 291A-02 291A-03 291A-04 291A-05 100 120 140 100 1000 Frequency (MHz) Q 291B-10 291B-09 291B-07 291B-08 291B-06