INTERNET http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers NORTH AMERICA 800-654-7949 • 417-335-5935 • Fax 417-335-5945 • EUROPE 44-1252-832600 • Fax 44-1252-837010
Mini-Circuits®
Mini-Circuits ISO 9001 & ISO 14001 Certified
50Ω 0.05 to 250 MHz
RF Transformer
Plug-In
CASE STYLE: A03
PRICE: $10.20 ea. QTY (1-9)
Outline Dimensions ( )
inch
mm
Maximum Ratings
Pin Connections
Operating Temperature -55°C to 100°C
Storage Temperature -55°C to 100°C
RF Power 0.25W
DC Current 30mA
Outline Drawing
Transformer Electrical Specifications
REV. A
M98898
TMO3-1T+
IG/TD/CP
061130
Typical Performance Data
Config. A
A B C D E F
.480 .500 .390 .405 .210 .230
12.19 12.70 9.91 10.29 5.33 5.84
G H J K wt
.100 .20 .14 .020 grams
2.54 5.08 3.56 0.51 2.3
Ω
RATIO FREQUENCY
(MHz)
INSERTION LOSS*
3 dB
MHz
2 dB
MHz
1 dB
MHz
3 0.05-250 0.05-250 0.1-200 0.5-70
*Insertion Loss is referenced to mid-band loss, 0.4 dB typ.
TMO3-1T
INSERTION LOSS
0.0
1.0
2.0
3.0
0.01 0.1 1 10 100 1000
FREQUENCY (MHz)
INSERTION LOSS (dB)
PRIMARY DOT 1
PRIMARY 5
SECONDARY DOT 2
SECONDARY 6
SECONDARY CT 4
CASE GROUND 7, 8
NOT USED 3
FREQUENCY
(MHz)
INSERTION
LOSS
(dB)
INPUT
R. LOSS
(dB)
Features
• excellent insertion loss
• hermetic case
Applications
• military, hi-rel requirements
• balanced to unbalanced transformation
TMO3-1T+
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifications.
0.05 2.12 6.80
0.20 0.81 15.48
0.47 0.71 18.20
10.03 0.43 23.28
45.28 0.50 21.93
108.53 0.70 15.96
125.32 0.76 14.37
149.29 0.85 12.26
173.68 0.89 10.40
250.00 0.98 7.10
