T2-1T-KK81+ footprint, schematic symbol and 3D model by Mini-Circuits

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PCB Footprints

T2-1T-KK81+ - Mini-Circuits PCB footprint - Other - Other - T2-1T-KK81+-2

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Datasheet Download Datasheet
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Part Number T2-1T-KK81+
Manufacturer Mini-Circuits
Pin Count 6
Part Category Transformer
Package Category Other
Footprint Name Other - T2-1T-KK81+-2
Released Date Aug 28, 2026
Last Modified Date Sep 18, 2026 11:53 AM UTC
Pinout / Pin List Click Here (Member Only)

T2-1T-KK81+ Details

Manufacturer Part Number:
T2-1T-KK81+
Pbfree Code:
Yes
Rohs Code:
Yes
Part Life Cycle Code:
Active
ECCN Code:
EAR99
Manufacturer:
Mini-Circuits
YTEOL:
7
Additional Feature:
OHMS RATIO IS: 2
Application:
SIGNAL
Cut-off Frequency-Max:
200 MHz
Cut-off Frequency-Min:
0.07 MHz
DC Unbalance Current-Max:
30 mA
Height:
5.84 mm
Insertion Loss:
3 dB
JESD-609 Code:
e3
Length:
7.62 mm
Mounting Feature:
SURFACE MOUNT
Number of Primary Winding:
1
Number of Secondary Winding:
1
Operating Frequency-Max:
200000 kHz
Operating Frequency-Min:
70 kHz
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-20 °C
Power Rating:
0.25 W
Surface Mount:
YES
Terminal Finish:
Tin (Sn) - with Nickel (Ni) barrier
Transformer Type:
RF TRANSFORMER
Width:
6.86 mm

T2-1T-KK81+ Frequently Asked Questions (FAQs)

Mini-Circuits provides a recommended PCB layout and footprint in their application notes and evaluation board documentation. It's essential to follow these guidelines to ensure optimal performance, especially for high-frequency applications.
Impedance matching can be achieved using a combination of series and shunt resistors, capacitors, and inductors. Mini-Circuits provides a impedance matching calculator tool on their website, which can help you determine the required components for optimal matching.
While the datasheet doesn't explicitly state the maximum power handling, Mini-Circuits recommends derating the power handling based on the operating frequency and temperature. As a general rule, it's recommended to derate the power handling by 1 dB for every 10°C increase in temperature above 25°C.
Yes, the T2-1T-KK81+ can be used in switching applications, but it's essential to ensure that the switching frequency is within the device's recommended operating frequency range. Additionally, the device's power handling and thermal characteristics should be considered to prevent overheating and damage.
Common issues with the T2-1T-KK81+ can often be attributed to improper PCB layout, impedance mismatch, or incorrect soldering. Mini-Circuits provides troubleshooting guides and application notes that can help identify and resolve these issues.

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T2-1T-KK81+ Overview

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About Mini-Circuits

Mini-Circuits is a global leader in the design, manufacturing, and distribution of RF and microwave components and systems. The company's product portfolio includes a vast array of components such as amplifiers, mixers, splitters, couplers, filters, switches, and attenuators, among others. These components cover frequency ranges from DC to 65 GHz and beyond, serving applications in wireless communication, satellite communication, radar systems, test and measurement equipment, medical devices, and more.

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