Air Core Coils, Spring Inductors

Ultra-miniature Flat Top (TRAM)

Token offers The Smallest Air Coil Inductors for Only (1.8 x 2.0 x 2.0 mm) (TRAM) - Preview

SMD Inductors Air Core Coils - TRAM Series
SMD Inductors Air Core Coils - Ultra-miniature TRAM Series
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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 miniaturised alternative to the earlier version.

The wire-wound construction with a miniature core is ideal for high frequency applications. These new SMD coils measure 1.8 x 2.0 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 Q 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 SMD 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 Q specifications.

Custom parts are available on request. Token will also produce devices outside these specifications to meet specific customer requirements,
please contact our sales for more information.

Features:

  1. High frequency
  2. Excellent SRFs and high Q
  3. Good constitutive property and easy to operate

Applications:

  1. Pager, Cordless phone.
  2. High Freq. Communication Products.
  3. Intercom, CATV.

Ultra-miniature SMD Spring Coils (TRAM0603 TRAM0805 TRAM1008) - Dimensions (Unit: mm)

Ultra-miniature Spring Coils (TRAM0603 TRAM0805 TRAM1008 Series) Dimensions
Ultra-miniature Spring Coils
(TRAM0603 TRAM0805 TRAM1008 Series) Dimensions
Type A (max) B (max) C ± 0.2
TRAM0603 1.80 2.00 2.00
TRAM0805 1.80 2.10 2.85
TRAM1008 1.90 2.20 3.20

Ultra-miniature SMD Air Coils (TRAM2215 TRAM4015 TRAM132) - Dimensions (Unit: mm)

Ultra-miniature Air Coils <br>(TRAM2215 TRAM4015 TRAM132 Series) Dimensions
Ultra-miniature Air Coils
(TRAM2215 TRAM4015 TRAM132 Series) Dimensions
Type A B C D E
TRAM2215 2.2 ± 0.3 1.4 ± 0.2 1.4 ± 0.2 1.8 ± 0.3 0.9 ± 0.3
TRAM4015 4.0 ± 0.3 1.4 ± 0.2 1.4 ± 0.2 3.5 ± 0.3 0.9 ± 0.3
TRAM132 9.0(max) 4.4 ± 0.3 4.6 ± 0.4 8.0 ± 0.5 1.3 ± 0.4

Ultra-miniature SMD Spring Inductor (TRAM3730 TRAM7030) - Dimensions (Unit: mm)

Ultra-miniature SMD Air Spring Inductors
(TRAM3730 TRAM7030 Series) Dimensions
Type A ± 0.3 B ± 0.2 C ± 0.2 D ± 0.3 E ± 0.2
TRAM3730 3.30 2.60 2.70 2.90 0.70
TRAM7030 6.30 3.60 3.70 5.80 0.70

Ultra-miniature SMD Spring Coils (TRAM1812 Series) - Dimensions (Unit: mm)

Ultra-miniature SMD Spring Coils (TRAM1812 Series) Dimensions
Type A ± 0.3 B ± 0.2 C ± 0.2 D ± 0.4 E ± 0.3
TRAM1812 4.90 3.50 3.50 4.30 1.00

Flat Top Air Core Inductors (TRAM0603 TRAM0805 TRAM1008 Series) - Order Codes

TRAM 1008 - 6N8 K
12 34
Part Number
TRAM
Size (L×W)
(mm)
0603 1.80×2.00mm
0805 1.80×2.10mm
1008 1.90×2.20mm
 
Inductance
6N8 6.8nH
10N 10.0nH
R10 100.00nH
Tolerance
K 10%
M 20%

Mini Air Core Inductors (TRAM2215 TRAM4015 TRAM132 Series) - Order Codes

TRAM 2215 - K
12 3
Part Number
TRAM
Size (L×W)
(mm)
2215 2.20×1.40mm
4015 4.00×1.40mm
132 9.00×4.40mm
 
Turns

Mini Air Core Inductors (TRAM3730 TRAM7030 Series) - Order Codes

TRAM 3730 - A01T
12 3
Part Number
TRAM
Size (L×W)
(mm)
3730 3.30×2.60mm
7030 6.30×3.60mm
 
Turns

Mini Air Core Inductors (TRAM1812 Series) - Order Codes

TRAM 1812 - 22N K
12 34
Part Number
TRAM
Size (L×W)
(mm)
1812 4.90×3.50mm
 
Inductance
22N 22nH
R10 100nH
Tolerance
J 5%
K 10%