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Details, datasheet, quote on part number:3A425
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| Part: | 3A425 |
| Category: | RF & Microwaves |
| Description: | Description = Xinger Balun Transformers ;; Size LXWXH = 0.75 X 0.79 X 0.076" ;; Packaging = Surface Mount ;; Frequency MHZ = 800-1000 ;; Power Handling Watts = 250 |
| Company: | Anaren Microwave |
| Datasheet: | Download 3A425 datasheet File size : 4013 kB |
| Request For quote: | Find where to buy 3A425
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Datasheet text preview:
Model 3A425
Rev. A
Pico Balun 50? to 25? Balanced
Description
The 3A425 is a low profile balanced to unbalanced transformer designed for pushpull amplifiers in an easy to use surface mount package covering GSM, D-AMPS and NMT900 applications. These compact Xinger® surface mount baluns are ideal for high volume manufacturing and are more reliable and repeatable than traditional baluns. The 3A425 has an unbalanced port impedance of 50 and balanced port impedances of 25 to ground with a 50 balance between outputs. This eases the matching of the push-pull amplifier's power transistors, which have low impedance levels. The output ports have equal amplitude (-3dB) with 180 degree phase differential. The Xinger® balun is a result of years of research and development culminating with a solution so unique, a patent is pending on the design approach. The 3A425 is available on tape and reel for pick and place high volume manufacturing.
ELECTRICAL SPECIFICATIONS***
Features:
800 1000 MHz 180° Transformer 50 Ohm to 25 Ohm Broad Band Low Insertion Loss High Power Even Order Harmonic Suppression · Input to Output DC Isolation · Surface Mountable · Tape & Reel · Convenient Package · · · · · · ·
Frequency
MHz
Unbalanced Port Impedance
Ohms
Balanced Port Impedance*
Ohms
Return Loss
dB min
Insertion Loss**
dB max
800 - 1000 Amplitude Balance
dB max
50 Phase Balance
Degrees max
50 Power Handling
Watts
15 JC
ºC / Watt
0.35 Operating Temp.
ºC
0.5
180+ 5.0
250
5.3
-55 to +85
***Specification based on performance of unit properly installed on microstrip printed circuit boards with 50 nominal impedance. Specifications subject to change without notice. **Insertion Loss excludes reflected power. * 25 reference to ground
Outline Drawing
Top View (Near-side)
.750±.010 [19.05±0.25]
.076±.008 [1.93±0.20] Pin 2
.031±.004 TYP [0.80±0.10] Pin 2 .027±.004 [0.69±0.10]
.060±.008 [1.52±0.20] .121±.004 [3.07±0.10]
GND Pin 1 .790±.010 [20.07±0.25] .122±.008 [3.10±0.20]
.401±.008 [10.19±0.20]
Denotes Array Number
Dimensions are in Inches [Millimeters] 3A525 Rev A Mechanical Outline
Pin 3 Pin 3 .040±.008 [1.02±0.20]
.035±.004 TYP [0.89±0.10]
Available on Tape and Reel For Pick and Place Manufacturing.
USA/Canada: Toll Free: Europe:
(315) 432-8909 (800) 544-2414 +44 2392-232392
Model 3A425
Rev. A
Typical Performance: 600 MHz. to 1200 MHz.
Amplitude Balance 3A425
1 0.75 0.5
Return Loss 3A425
0 -5 -10
A m p l i t u d e Balance [dB]
R e t u r n Loss [dB]
0.25 0 -0.25 -0.5 -0.75 -1 600
-15 -20 -25 -30 -35 -40 600
700
800
900
1000
1100
1200
700
800
900
1000
1100
1200
Frequency [MHz]
Frequency [MHz]
Phase Balance 3A425
-170 -172 -174
Insertion Loss 3A425
0 -0.05 -0.1
I n s e r t i o n Loss [dB]
-0.15 -0.2 -0.25 -0.3 -0.35 -0.4 -0.45 -0.5 600
P h a s e Balance [Degrees]
700 800 900 1000 1100 1200
-176 -178 -180 -182 -184 -186 -188 -190 600
700
800
900
1000
1100
1200
Frequency [MHz]
Frequency [MHz]
Pin Configuration:
Mounting Configuration:
To ensure proper electrical and thermal performance there must be a ground plane with 100% solder connection underneath the part
Multiple plated thru holes to ground .280 [7.11] .531 [13.48] .130 [3.30]
50 V Transmission Line .121 [3.07] .070 [1.78]
.651 [16.54]
.049 [1.24] .034 TYP [0.86] 2 Places 25 V Transmission Line Referenced to GND
Dimensions are in Inches [Millimeters] 3A425 Rev A Mounting Footprint
USA/Canada: Toll Free: Europe:
(315) 432-8909 (800) 544-2414 +44 2392-232392
Available on Tape and Reel For Pick and Place Manufacturing.
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