SURFACE MOUNT INDUCTORS AND TRANSFORMERS
SG-890A
WIDEBAND TRANSFORMERS - 4.5 x 4.5 x 2.8 mm
APPLICATIONS
• RF circuits
• Mobile radio
• Satellite TV
0.18
4.5
• Cordless phones
2
3
4
FEATURES
• Compact design
0.18
4.5
• Suitable for automatic insertion
• For reflow and vapor phase soldering
• Ceramic base
• 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.
1
5
0.12
3.0
SPECIFICATIONS
Operating Temperature Range: –40°C to +125°C
Soldering Heat Resistance: 230°C, 5 s
CONFIGURATION FOR BALUN TRANSFORMER (PAGE 7)
TRANSFORMER WITH 2 WINDINGS
1
2
5
4
3 dB
Band Limits
(MHz)
Loss at 20 MHz
(dB)
Impedance
Turns
Ratio
Model
Number
(Ω)
max
50 : 50
1 : 1
4 - 2000
0.5
GLSW4M202
TYPICAL INSERTION LOSS
0
-1
-2
-3
0.12
3.0
-4
-5
dB
-6
0.22
5.5
-7
-8
-9
0.08
2.0
TYP
-10
1
0.04
1.0
TYP
10
100
1000
10000
PAD LAYOUT
(
)
FREQUENCY MHz
All dimensions are in / mm.
Unless otherwise specified, the tolerance on dimensions is 0.004 / 0.1.
SPRAGUE-GOODMAN ELECTRONICS, INC., 1700 SHAMES DRIVE, WESTBURY, NY 11590 • TEL: 516-334-8700 • FAX: 516-334-8771 • E-MAIL: info@spraguegoodman.com
6