SURFCOIL® PROFESSIONAL GRADE SMT INDUCTORS AND TRANSFORMERS
Engineering Bulletin SG-890
Surface Mount Transformers: 4.4 x 4.4 x 3.3 mm - GLSG Series
APPLICATIONS
- Impedance matching
- Voltage or current transformation
- DC isolation
- Balanced/unbalanced matching
- Coupling
- Signal Inversion
FEATURES
- Compact design
- Carrier and reel standard
- Ceramic base
- Suitable for vapor phase and reflow soldering
- Terminals are formed from the ends of the coil windings, eliminating solder joints between the coil and the terminals which could open from the heat of circuit assembly.
SPECIFICATIONS
- Operating Temperature Range: -40°C to +125°C
- Power Loss at 40°C: 150 mW
- Operating Frequencies from HF to UHF
Turns Ratio |
Primary Inductance (µH) |
DCR max (ohms) |
Secondary Inductance (µH) |
DCR max (ohms) |
Inductance Test Freq. |
Q min |
Q Test Freq. (MHz) |
Pin Connections | Model Number |
|||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Secondary | |||||||||||
| A | B | C | D | |||||||||
| 1 : 17 | 3.4 ± 10% | 0.5 | 810 ± 5% | 22.0 | 0.1 | 50 | 0.5 | 1 | 5 | 4 | 2 | GLSG17/01H811 |
| 1 : 4 | 0.34 ± 10% | 0.1 | 4.85 ± 5% | 0.3 | 1.0 | 45 | 10.0 | 1 | 5 | 2 | 4 | GLSG04/01H4R9 |
| 1 : 5 | 31.0 ± 5% | 4.0 | 680 ± 5% | 24.0 | 0.01 | 60 | 0.7 | 2 | 4 | 1 | 5 | GLSG05/01H681 |
| 1 : 1 | 1.3 ± 20% | 0.1 | 1.3 ± 20% | 0.1 | 0.1 | 60 | 10.0 | 5 | 1 | 2 | 4 | GLSG01/01H1R3 |
| 4.7 : 1 | 1.03 ± 10% | 0.25 | 0.075 ± 20% | 0.07 | 1.0 | 30 | 10.0 | 2 | 4 | 1 | 5 | GLSG01/05H1R0 |
Carrier and Reel Specifications
All dimensions are in/mm.
Unless otherwise specified, the tolerance on all dimensions is ±0.004/0.1.
SURFCOIL® PROFESSIONAL GRADE SMT INDUCTORS AND TRANSFORMERS
Engineering Bulletin SG-890 Contents
- Introduction
- Surface Mount Air Coil – GLSM Series: 3.7 x 3.1 x 3.2 and 7.1 x 3.1 x 3.2 mm
- Surface Mount Inductor – GLST Series: 5.6 x 4.0 x 3.1 mm
- Surface Mount Power Inductor – GLSP Series: 4.8 x 4.0 x 5.0 mm
- Surface Mount Power Inductor – GLSX Series: 8.5 x 8.0 x 5.5 mm
- Surface Mount Inductor – GLSH Series: 11.9 x 9.6 x 5.2 mm
- SMD Tunable RF Coil – GLSV & GLSA Series: 5.0 x 5.0 x 5.1 mm
- Surface Mount Transformers – GLSG Series: 4.4 x 4.4 x 3.3 mm
- Surface
Mount Transformers – GLSZ Series: 4.5 x 3.4 x 3.1 mm
- Surface Mount Wideband Transformers
- Transformer with 2 Windings – GLSW Series: 4.5 x 4.5 x 2.8 mm
- Transformer with 2 Windings and Tap – GLSB Series: 4.5 x 4.5 x 2.8 mm
- Balun Transformer – GLSU Series: 4.5 x 4.5 x 2.8 mm
- Power Splitter – GLSD Series Couplers: 4.5 x 4.5 x 2.8 mm
- Directional Couplers
- GLSL Series: 4.5 x 4.5 x 2.8 mm
- GLSN Series: 5.7 x 5.7 x 3.9 mm
- GLSY Series: 6.5 x 5.7 x 3.9 mm
- 180°
Hybrid Coupler – GLSJ Series: 6.5 x 5.7 x 3.9 mm
- SMD Toroidal-Core Transformers
and Chokes
- Transformer with 2 Windings – GLSF Series: 10.8 x 8.8 5.5 mm
- Transformer with 3 Windings – GLSK Series: 10.8 x 8.8 5.5 mm
- Current Compensated Toroidal-Core Choke – GLSC Series: 10.8 x 8.8 x 5.5 mm
- Current
Compensated Toroidal-Core Transformer – GLSE Series: 17.8 x 14.3
x 8.8 mm
- Carrier and Reel Specifications