(TRAM) Surface Mount Spring RF Inductor. Token Electronics Industry Co., Ltd. Version: January 13, Web:
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1 Version: January 13, 2017 (TRAM) Surface Mount Spring RF Inductor Token Electronics Industry Co., Ltd. Web: Taiwan: No.137, Sec. 1, Zhongxing Rd., Wugu District, New Taipei City, Taiwan, R.O.C Tel: Fax: China: 12F, Zhong Xing Industry Bld., Chuang Ye Road, Nan Shan District, Shen Zhen City, Guang Dong, China Tel: ; Fax:
2 Product Introduction The (TRAM) series features high value in the high frequency range. Features : High frequency Excellent s and high Good constitutive property and easy to operate Applications : Pager, Cordless phone. High Freq. Communication Products. Intercom, CATV. Token offers The Smallest Flat Top Air Core Coils (Spring Inductors) for only ( mm). The latest range of air core surface mount coils from Token is fully compliant with RoHS legislation and available immediately in full production volumes. The (TRAM) series provides a cost effective and miniaturized alternative to the earlier version. The wire-wound construction with a miniature core is ideal for high frequency applications. These new SMD coils measure mm with a low 2.0 mm profile, which combined with a mould-sealed surface, makes them particularly suitable for high-density mounting. Indeed, the (TRAM) series features high value in the high frequency range, offers stable inductance at high frequency and has high self-resonant frequency. Meanwhile, the low DC resistance design is ideal for low loss, high output and low power consumption. A wide range of devices in the series, with inductance values ranging from 3.9 to 538nH, allows designers to select the most appropriate part of their application. These chip air core coils are aimed at high frequency circuits in telecommunications equipment, including power amplifiers, antenna modules, VCOs and SAWs, and in mobile phones, such as GSM, CDMA, and PDC. Other applications include digital TV tuners, wireless LAN and Bluetooth devices. This new SMD inductor provides a narrow inductance deviation with a complete range of inductance values, making chip inductors an excellent choice for high frequency circuit matching. SMD coils can be customed designs and tighter tolerances available on request. Application of RF air core coil specific designs also available including different inductance values and specifications. Custom parts are available on request. Token will also produce devices outside these specifications to meet specific customer requirements, please contact our sales or link to Token official website RF Inductors for more information. Page: 1/10
3 Dimensions Dimensions (Unit: mm) (TRAM0603 TRAM0805 TRAM1008) Type A (max) B (max) C ± 0.2 TRAM TRAM TRAM Ultra-Miniature (TRAM0603 TRAM0805 TRAM1008) Dimensions Dimensions (Unit: mm) (TRAM2215 TRAM4015 TRAM132) Type A B C D E TRAM ± ± ± ± ± 0.3 TRAM ± ± ± ± ± 0.3 TRAM (max) 4.4 ± ± ± ± 0.4 Ultra-Miniature (TRAM2215 TRAM4015 TRAM132) Dimensions Page: 2/10
4 Dimensions (Unit: mm) (TRAM3730 TRAM7030) Type A ± 0.3 B ± 0.2 C ± 0.2 D ± 0.3 E ± 0.2 TRAM TRAM Ultra-Miniature (TRAM3730 TRAM7030) Dimensions Dimensions (Unit: mm) (TRAM1812) Type A ± 0.3 B ± 0.2 C ± 0.2 D ± 0.4 E ± 0.3 TRAM Ultra-Miniature (TRAM1812) Dimensions Page: 3/10
5 Electrical Characteristics Electrical Characteristics (TRAM 0603) DCR (mω)(max) IDC (ma)(max) TRAM0603-3N9K > TRAM0603-4N7K > TRAM0603-5N6K > TRAM0603-6N8K > TRAM0603-8N2K > TRAM NK > TRAM NK > TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK Page: 4/10
6 Electrical Characteristics (TRAM 0805) DCR (mω)(max) IDC (ma)(max) TRAM0805-3N9K > TRAM0805-4N7K > TRAM0805-5N6K > TRAM0805-6N8K > TRAM0805-8N2K > TRAM NK > TRAM NK > TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK Page: 5/10
7 Electrical Characteristics (TRAM 1008) DCR (mω)(max) IDC (ma)(max) TRAM1008-6N8K > TRAM1008-8N2K > TRAM NK > TRAM NK > TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM NK TRAM R10K TRAM R12K Electrical Characteristics (TRAM 2215) (GHz) TRAM ± 10% >3.0 TRAM ± 10% >3.0 TRAM ± 10% >3.0 TRAM ± 5% >3.0 Electrical Characteristics (TRAM 4015) (GHz) TRAM ± 5% >3.0 TRAM ± 5% >3.0 TRAM ± 5% >3.0 TRAM ± 5% >3.0 TRAM ± 5% >3.0 Page: 6/10
8 Electrical Characteristics (TRAM 132) (GHz) TRAM ± 5% >1.0 TRAM ± 5% >1.0 TRAM ± 5% >0.9 TRAM ± 5% >0.8 TRAM ± 5% >0.7 TRAM ± 5% >0.6 TRAM ± 5% >0.6 TRAM ± 5% >0.5 TRAM ± 5% >0.5 TRAM ± 5% >0.4 TRAM ± 5% >0.4 TRAM ± 5% >0.4 Electrical Characteristics (TRAM 3730) (GHz) TRAM A01T ± 10% >3.0 TRAM A02T ± 10% >3.0 TRAM A03T ± 10% >3.0 TRAM A04T ± 5% >3.0 TRAM A05T ± 5% >2.5 Electrical Characteristics (TRAM 7030) (GHz) TRAM B06T ± 5% >2.2 TRAM B07T ± 5% >2.0 TRAM B08T ± 5% >1.8 TRAM B09T ± 5% >1.2 TRAM B10T ± 5% >1.0 Page: 7/10
9 Electrical Characteristics (TRAM 1812) (GHz) TRAM NK TRAM NK TRAM NK TRAM NJ TRAM NJ TRAM NJ TRAM NJ TRAM NJ TRAM R10J TRAM R12J Page: 8/10
10 Order Codes Order Codes (TRAM0603 TRAM0805 TRAM1008) TRAM N8 K TRAM Size (L W) (mm) mm mm mm 6N8 10N R10 6.8nH 10.0nH nH Tolerance K 10% M 20% Order Codes (TRAM2215 TRAM4015 TRAM132) TRAM K TRAM Size (L W) (mm) mm mm mm Order Codes (TRAM3730 TRAM7030) TRAM A01T TRAM Size (L W) (mm) mm mm Order Codes (TRAM1812) TRAM N K TRAM Size (L W) (mm) mm 22N R10 22nH 100nH Tolerance J 5% K 10% Page: 9/10
11 General Information Token Cuts Inductor Size and Cost Token utilizes the latest technology enabling the most cost-effective designs in manufacturing inductors. The 0402, 0603, 0805, 1206, 1210, to 1812 series of RF Miniature Inductors all contain wire wound or multi-layer technology with material substrate in ceramic or ferrite cores. Thus providing economic cost with the ultimate performance demanded by today's RF applications. Inductors feature high factor, s (self-resonant or series resonant frequency), and Idc (maximum current carrying capacity). How to quickly search RF inductors for all of the characteristics? Searching and comparing data sheets of inductor manufacturers can be time consuming. Token s Parameter Sorting Search Mode allows selection of inductors based on different parameters. To enter Searching Mode: By entering just the inductance value, By sorting parameter to narrow down searching range, Or by enter keyword / part number / size dimensions L*W*H to partial or exact searching. Inductors Selection Notes: For choke applications, the s (self-resonant or series resonant frequency) is the frequency that provides the best signal blocking. At the, impedance is at its maximum. At frequencies below the, impedance increases with frequency. At frequencies above the, impedance decreases with frequency. For higher order filter or impedance matching applications, in general, the choice of inductance value typically determines the and vice versa. The higher the inductance value, the lower the, due to increased winding capacitance. It is more important to have a relatively flat inductance curve (constant inductance vs. frequency) near the required frequency. This suggests selecting an inductor with an well above the design frequency. A rule of thumb is to select an inductor with an that is a decade (10X) higher than the operating frequency. What is factor? High leads to low insertion loss, minimizing power consumption, and narrow bandwidth. It is important if the inductor is to be used as part of an LC (oscillator) circuit or in narrow band pass applications. In general, wire wound inductors have much higher values than multilayer inductors of the same size and value. Token's material science and manufacturing expertise effectively bridges the gap between wire-wound performance and multi-layer inductors with its TRMF (EIA 0402) and TRMI (EIA 0603) series. How does current requirement affect inductor? Higher current requires larger wire or more threads of the same wire size to keep losses and temperature rise to a minimum. Larger wire lowers the DCR and increases the factor. Using a ferrite core inductor with a lower turn count can achieve higher current capacity and lower DCR. Ferrite, however, may introduce new limitations such as larger variation of inductance with temperature, looser tolerances, lower, and reduced saturation current ratings. Token's ferrite inductors with open magnetic structures, will not saturate, even at full rated current. Page: 10/10
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