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 1A1305-5
Rev. A
Directional Couplers
5 dB
Description
The 1A1305-5 is a low profile 5dB directional coupler in an easy to use
surface mount package covering the DCS and PCS bands. The 1A1305-5
is ideal for 3 way inline split/combine amplifiers and for power injection
and can be used in most high power designs. Parts have been subjected
to rigorous qualification testing and units are 100% tested. They are
manufactured using materials with x and y thermal expansion coefficients
compatible with common substrates such as FR4, G-10 and polyamide.
ELECTRICAL SPECIFICATIONS**
Frequency Mean
Coupling
Insertion
Loss VSWR Freq.
Sensitivity
GHz dB dB Max Max:1 dB Max
1.7 – 2.0 5.0 ± 0.4 0.25 1.20 ±0.20
1.5 – 2.2 5.1 ± 0.5 0.25 1.20 ±0.30
Directivity Power
Handling ΘJC Operating
Temp.
dB Min Watts ºC / Watt ºC
16 100 16.5 -55 to +85
Features:
• 1.5 - 2.2GHz
• Low loss
• High Directivity
• Surface Mountable
• Tape And Reel
• Convenient Package
• 100% Tested
15 100 16.5 -55 to +85
**Specification based on performance of unit properly installed on microstrip printed circuit
boards with 50 Ω nominal impedance. Specifications subject to change without notice.
Outline Drawing
1A1305-5 Rev A Mechanical Outline
Dimensions are in Inches [Millimeters]
Bottom View (Far-side)
Side View
Top View (Near-side)
.081±.008
[2.05±0.20]
.560±.010
[14.22±0.25]
.350±.010
[8.89±0.25]
.050±.008
[1.27±0.20]
.050±.008
[1.27±0.20]
Pin 4
Pin 4 Pin 3
Pin 1 Pin 2
Denotes
Array Number
GND GND
Pin 2 Pin 1
Pin 3
.024±.004 TYP
[0.61±0.10]
Part Is Symmetric About All Axis
USA/Canada:
Toll Free:
Europe:
(315) 432-8909
(800) 544-2414
+44 2392-232392
Available on Tape and
Reel For Pick and Place
Manufacturing.
Model 1A1305-5
Rev. A
Typical Performance: 1.4 GHz. to 2.4 GHz.
Coupling 1A1305-5
-5.2
-5.0
-4.8
-4.6
-4.4
1400 1650 1900 2150 2400
Frequency [MHz]
Coupling [dB]
Return Loss 1A1305-5
-40
-30
-20
-10
0
1400 1650 1900 2150 2400
Frequency [MHz]
Return Loss [dB]
Directivity 1A1305-5
-28
-21
-14
-7
0
1400 1650 1900 2150 2400
Frequency [MHz]
Directivity [dB]
Transmission Loss 1A1305-5
-2.20
-2.10
-2.00
-1.90
-1.80
-1.70
1400 1650 1900 2150 2400
Frequency [MHz]
Transmission Loss [dB]
Pin Configuration Mounting Footprint
To ensure proper electrical and thermal performance
there must be a ground plane with 100%
solder connection underneath the part
.063 SQ TYP
[1.60] 50
Transmission
Line
D
imensions are in Inches [Millimeters]
1
A1305-5 Rev A Mounting Footprint
.250
[6.35]
.460
[11.68]
Part Is Symmetric About All Axis
.034 TYP
[0.86]
Multiple
plated thru holes
to ground
