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Mini-Circuits
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Notes: 1. Performance and quality attributes and conditions not expressly stated in this specification sheet are intended to be excluded and do not form a part of this specification sheet. 2. Electrical specifications
and performance data contained herein are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. 3. The parts covered by this specification sheet 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.
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IF/RF MICROWAVE COMPONENTS
50Ω 0.015 to 300 MHz
RF Transformer
Surface Mount
CASE STYLE: KK81
PRICE: $6.95 ea. QTY (1-9)
Outline Dimensions ( )
inch
mm
Maximum Ratings
Pin Connections
Operating Temperature -20°C to 85°C
Storage Temperature -55°C to 100°C
RF Power 0.25W
DC Current 30mA
Outline Drawing
Transformer Electrical Specications
REV. A
M98898
T1-6T-KK81
IG/TD/CP
080617
Typical Performance Data
Cong. A
Ω
RATIO FREQUENCY
(MHz)
INSERTION LOSS*
3 dB
MHz
2 dB
MHz
1 dB
MHz
1 0.015-300 0.015-300 0.021-150 0.03-50
*Insertion Loss is referenced to mid-band loss, 0.1 dB typ.
PRIMARY DOT 4
PRIMARY 6
SECONDARY DOT 3
SECONDARY 1
SECONDARY CT 2
NOT USED 5
FREQUENCY
(MHz)
INSERTION
LOSS
(dB)
INPUT
R. LOSS
(dB)
Features
• wideband, 0.015 to 300 MHz
• excellent return loss
• also available with plug-in (X65) at pack (W38) leads
Applications
• VHF/UHF receivers/transmitters
• impedance matching
T1-6T-KK81+
T1-6T-KK81
0.02 1.24 11.77
0.13 0.21 26.45
1.15 0.12 37.26
47.47 0.40 19.27
111.99 0.66 14.92
147.83 0.74 14.64
175.75 0.75 15.08
209.75 0.77 16.64
250.25 0.84 20.06
300.00 1.09 26.64
A
B
C
D
E
F
G
H
J
.30
.010
.042
.020
.100
.05
7.62 6.86 5.84 0.25 1.07 0.51 2.54 1.27 1.27
K
L
M
N
P
Q
R
S
wt
.020
.036
.575
.600
.125
.050
.100
grams
0.51 0.91 6.60 14.61 15.24 3.18 1.27 2.54
0.50
T1-6T-KK81
INSERTION LOSS
0.0
1.0
2.0
3.0
0.01 0.1 1 10 100 1000
FREQUENCY (MHz)
INSERTION LOSS (dB)
T1-6T-KK81
INPUT RETURN LOSS
0
10
20
30
40
50
0.01 0.1 1 10 100 1000
FREQUENCY (MHz)
RETURN LOSS (dB)
Permanent damage may occur if any of these limits are exceeded.
+RoHS Compliant
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications