Surface Mount
50Ω
RF Transformer
0.08 to 200 MHz
Maximum Ratings
Operating Temperature
Storage Temperature
RF Power
DC Current
-20°C to 85°C
-55°C to 100°C
0.25W
30mA
T1-1T-KK81+
T1-1T-KK81
Features
• wideband, 0.08 to 200 MHz
• excellent return loss
• also available with plug-in (X65)
• flat-pack (W38) leads
CASE STYLE: KK81
PRICE: $4.45 ea. QTY (1-9)
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
Permanent damage may occur if any of these limits are exceeded.
Applications
Pin Connections
PRIMARY DOT
PRIMARY
SECONDARY DOT
SECONDARY
SECONDARY CT
NOT USED
4
6
3
1
2
5
• VHF
• receivers/transmitters
Transformer Electrical Specifications
Ω
RATIO
FREQUENCY
(MHz)
3 dB
MHz
INSERTION LOSS*
2 dB
MHz
0.15-150
1 dB
MHz
0.2-80
Outline Drawing
1
0.08-200
.08-200
*Insertion Loss is referenced to mid-band loss, 0.3 dB typ.
Typical Performance Data
FREQUENCY
(MHz)
INSERTION
LOSS
(dB)
2.78
1.18
0.52
0.38
0.36
0.64
0.76
1.23
1.60
1.63
INPUT
R. LOSS
(dB)
1.64
4.39
9.45
16.31
19.67
9.96
8.80
5.83
4.60
4.55
Outline Dimensions (
inch
)
mm
A
.30
7.62
K
.020
0.51
B
.27
6.86
L
.036
0.91
C
.23
5.84
M
.26
6.60
D
.010
0.25
N
.575
14.61
E
.042
1.07
P
.600
15.24
F
.020
0.51
Q
.125
3.18
G
.100
2.54
R
.050
1.27
H
.05
1.27
S
.100
2.54
J
.05
1.27
wt
grams
0.50
0.05
0.08
0.20
0.50
1.00
80.00
99.33
150.00
192.51
200.00
T1-1T-KK81
INSERTION LOSS
5.0
INSERTION LOSS (dB)
T1-1T-KK81
INPUT RETURN LOSS
25
RETURN LOSS (dB)
20
15
10
5
0
0.01
Config. A
4.0
3.0
2.0
1.0
0.0
0.01
0.1
1
10
100
1000
0.1
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
Notes
A.
Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B.
Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C.
The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
www.minicircuits.com
P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
Mini-Circuits
®
REV. A
M98898
T1-1T-KK81
IG/TD/CP
141008
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