Surface Mount
50Ω
RF Transformer
2 to 775 MHz
-20°C to 85°C
-55°C to 100°C
0.25W
30mA
ADT4-1WT+
ADT4-1WT
Maximum Ratings
Operating Temperature
Storage Temperature
RF Power
DC Current
Features
• excellent return loss, 20 dB typ. in dB bandwidth
• excellent amplitude unbalance, 0.1 dB typ.
and phase unbalance, 1 deg. typ. in 1 dB bandwidth
• aqueous washable
• protected under US patent 6,133,525
CASE STYLE: CD542
PRICE: $2.95 ea. QTY (10-49)
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications.
PRIMARY DOT
PRIMARY
SECONDARY DOT
SECONDARY
SECONARY CT
NOT USED
Pin Connections
3
1
4
6
5
2
• impedance matching
• baluns
Applications
Transformer Electrical Specifications
(Secondary/Primary)
Outline Drawing
Ω
RATIO
FREQUENCY
(MHz)
INSERTION LOSS*
PHASE
UNBALANCE
(Deg.)
Typ.
1 dB
bandwidth
1
2 dB
bandwidth
3
AMPLITUDE
UNBALANCE
(dB)
Typ.
1 dB
bandwidth
0.1
2 dB
bandwidth
0.3
3 dB
MHz
4
2-775
2-775
2 dB
MHz
3-600
1 dB
MHz
6-250
* Insertion Loss is referenced to mid-band loss, 0.8 dB typ.
PCB Land Pattern
Typical Performance Data
FREQUENCY
(MHz)
Suggested Layout,
Tolerance to be within ±.002
INSERTION
LOSS
(dB)
1.53
1.02
0.75
0.80
0.98
1.10
1.44
1.81
2.12
2.51
INPUT
R. LOSS
(dB)
13.65
17.61
21.91
22.05
19.93
18.41
10.74
8.91
7.73
7.38
AMPLITUDE
UNBALANCE
(dB)
0.02
0.00
0.00
0.01
0.03
0.03
0.18
0.23
0.27
0.28
PHASE
UNBALANCE
(Deg.)
0.03
0.03
0.00
0.26
0.89
1.48
6.98
10.48
14.36
14.98
Outline Dimensions (
inch
)
mm
A
.272
6.91
B
.310
7.87
C
.220
5.59
D
.100
2.54
E
.112
2.84
F
.055
1.40
G
.100
2.54
H
.030
0.76
J
.026
0.66
K
.065
1.65
L
.300
7.62
wt
grams
0.20
1.00
3.00
10.00
50.00
175.00
250.00
600.00
700.00
775.00
800.00
Demo Board MCL P/N: TB-42
2.4
INSERTION LOSS (dB)
ADT4-1WT
INSERTION LOSS
50
RETURN LOSS (dB)
40
30
20
10
0
0
155
ADT4-1WT
INPUT RETURN LOSS
2.0
1.6
1.2
0.8
0.4
0.0
0
155
310
465
620
775
FREQUENCY (MHz)
Config. A
310
465
620
775
FREQUENCY (MHz)
Mini-Circuits
ISO 9001 ISO 14001
CERTIFIED
RF/IF MICROWAVE COMPONENTS
®
minicircuits.com
REV. B
M98898
ADT4-1WT
ED-6920/1
HY/TD/CP/AM
070714
EW
ALL N
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 For detailed performance specs & shopping online see Mini-Circuits web site
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