Balun

Category Introduction

A Balun is a device designed to connect two circuits by converting or unconverting balanced and unbalanced loads. The characteristics are frequency range, impedance -unbalanced/balanced, phase difference, insertion loss, and return loss. The frequency range is from 10kHz to 23.6GHz with an impedance from 1:1 to 100/100Ohm and a phase difference from -155° ±15° to 195°.

Product List

1269 Items

Mfr Part #	Quantity Available	UnitPrice	Series	Packaging	Product Status	Frequency Range	Impedance - Unbalanced/Balanced	Phase Difference	Insertion Loss (Max)	Return Loss (Min)	Package / Case	Mounting Type
DEA102500LT-9052A1 BALUN 2.3GHZ-2.5GHZ 0402 TDK Corporation	2,793	$0.25	DEA	Tape & Reel (TR)	Active	2.3GHz ~ 2.5GHz	50 / -Ohm	178°	0.9dB	15dB	0402 (1005 Metric), 4 PC Pad	Surface Mount
2450BL15B100E BALUN 2.4GHZ-2.5GHZ 50/100 0805 Johanson Technology Inc.	242	$0.35	2450	Tape & Reel (TR)	Active	2.4GHz ~ 2.5GHz	50 / 100Ohm	180° ±10°	1.0dB	9.5dB	0805 (2012 Metric)	Surface Mount
0900BL18B100E BALUN 800MHZ-1GHZ 50/100 1206 Johanson Technology Inc.	611	$0.52	0900	Tape & Reel (TR)	Active	800MHz ~ 1GHz	50 / 100Ohm	180° ±10°	1.0dB	9.5dB	1206 (3216 Metric)	Surface Mount
0850BM14E0016T BALUN 770MHZ-928MHZ 50/50 0603 Johanson Technology Inc.	595	$0.44		Tape & Reel (TR)	Active	770MHz ~ 928MHz	50 / 50Ohm	180° ±15°	1.8dB	9.5dB	0603 (1608 Metric)	Surface Mount
HHM1595A1 BALUN 3GHZ-8GHZ 50/100 0805 TDK Corporation	195	$0.58	HHM	Tape & Reel (TR)	Active	3GHz ~ 8GHz	50 / 100Ohm	180° ±20°	1.5dB	8dB	0805 (2012 Metric)	Surface Mount
1600BL15B050E BALUN 1.5GHZ-1.7GHZ 50/50 0805 Johanson Technology Inc.	1,360	$0.59	1600	Tape & Reel (TR)	Active	1.5GHz ~ 1.7GHz	50 / 50Ohm	180° ±10°	1.0dB	9.5dB	0805 (2012 Metric)	Surface Mount
2450BM14G0011T BALUN 2.4GHZ-2.5GHZ 0603 Johanson Technology Inc.	930	$0.49		Tape & Reel (TR)	Active	2.4GHz ~ 2.5GHz	50 / -Ohm	180° ±10°	1.5dB	9.5dB	0603 (1608 Metric)	Surface Mount
BAL-NRF01D3 BALUN 2.4GHZ-2.54GHZ 5WFBGA STMicroelectronics	813	$0.58		Tape & Reel (TR)	Active	2.4GHz ~ 2.54GHz	50 / -Ohm	3°	2.25dB	10dB	5-WFBGA, FCBGA	Surface Mount
1720BL15B0050E BALUN 625MHZ-2.8GHZ 50/50 0805 Johanson Technology Inc.	1,362	$0.67		Tape & Reel (TR)	Active	625MHz ~ 2.8GHz	50 / 50Ohm	180° ±10°	1.5dB	9.5dB	0805 (2012 Metric)	Surface Mount
1720BL15A0100E BALUN 625MHZ-2.8GHZ 50/100 0805 Johanson Technology Inc.	392	$0.67		Tape & Reel (TR)	Active	625MHz ~ 2.8GHz	50 / 100Ohm	180° ±10°	1.5dB	9.5dB	0805 (2012 Metric)	Surface Mount
1720BL15B0200E BALUN 625MHZ-2.8GHZ 50/200 0805 Johanson Technology Inc.	1,063	$0.67		Tape & Reel (TR)	Active	625MHz ~ 2.8GHz	50 / 200Ohm	180° ±10°	1.5dB	9.5dB	0805 (2012 Metric)	Surface Mount
ATB2012-50011-T000 BALUN 40MHZ-860MHZ 50/50 0805 TDK Corporation	470	$0.70	ATB	Tape & Reel (TR)	Active	40MHz ~ 860MHz	50 / 50Ohm	-	2.5dB	-	0805 (2012 Metric)	Surface Mount
2450BM14G0011T-AEC BALUN 2.4GHZ AEC 0603 Johanson Technology Inc.	1,225	$0.59	2450	Tape & Reel (TR)	Active	2.4GHz ~ 2.5GHz	50 / -Ohm	180° ±10	1.8dB	9.5dB	0603 (1608 Metric), 6 PC Pad	Surface Mount
BD0810J50100AHF BALUN 800MHZ-1GHZ 50/100 0805 TTM Technologies, Inc.	1,109	$0.88	Xinger®	Tape & Reel (TR)	Active	800MHz ~ 1GHz	50 / 100Ohm	1°	0.95dB	13dB	0805 (2012 Metric)	Surface Mount
BD1631J50100AHF BALUN 1.6GHZ-3.1GHZ 50/100 0805 TTM Technologies, Inc.	368	$0.90	Xinger®	Tape & Reel (TR)	Active	1.6GHz ~ 3.1GHz	50 / 100Ohm	2.3°	0.9dB	10dB	0805 (2012 Metric)	Surface Mount
0900BL15C050E BALUN 800MHZ-1GHZ 50/50 0805 Johanson Technology Inc.	368	$0.79	0900	Tape & Reel (TR)	Active	800MHz ~ 1GHz	50 / 50Ohm	180° ±10°	1.2dB	9.5dB	0805 (2012 Metric)	Surface Mount
2450BM15A0002E BALUN 2.4GHZ-2.5GHZ 0805 Johanson Technology Inc.	752	$0.80		Tape & Reel (TR)	Active	2.4GHz ~ 2.5GHz	50 / -Ohm	180° ±15°	1.5dB	10dB	0805 (2012 Metric)	Surface Mount
BD3150N50100AHF BALUN 3.1GHZ-5GHZ 50/100 0404 TTM Technologies, Inc.	972	$0.78	Xinger®	Tape & Reel (TR)	Active	3.1GHz ~ 5GHz	50 / 100Ohm	3°	0.9dB	13dB	0404 (1010 Metric)	Surface Mount
2450BM14E0003T BALUN 2.4GHZ-2.5GHZ 0603 Johanson Technology Inc.	527	$0.65		Tape & Reel (TR)	Active	2.4GHz ~ 2.5GHz	50 / -Ohm	150° ±15°	2.5dB	9.5dB	0603 (1608 Metric), 6 PC Pad	Surface Mount
0900PC15A0036E BALUN 862MHZ-928MHZ 0805 Johanson Technology Inc.	867	$0.68	0900	Tape & Reel (TR)	Active	862MHz ~ 928MHz, 2.4GHz ~ 2.5GHz	50 / 50Ohm	180° ±15°	1.6dB, 2.0dB	10dB	0805 (2012 Metric), 10 PC Pad	Surface Mount

About Balun

What are Balun?

Balun

Baluns, short for "balanced to unbalanced transformers," are essential components in RF/IF and RFID systems. They serve the primary function of converting between balanced and unbalanced signals, which is crucial for maintaining signal integrity and minimizing interference. A balanced signal has equal and opposite voltages on two lines, while an unbalanced signal has a single line with a ground reference. Baluns work by using a combination of inductors and capacitors to transform impedance and phase, ensuring that signals are efficiently transmitted between different types of circuits. This transformation helps in reducing noise and improving the performance of communication systems.

Types of Balun

1. Transformer Baluns

Transformer baluns use magnetic coupling to convert signals. They are highly effective in providing wide bandwidth and high isolation between input and output. These baluns are often used in applications requiring high power handling and low insertion loss, such as in broadcasting and high-frequency communication systems.

2. Transmission Line Baluns

Transmission line baluns utilize transmission lines, such as coaxial cables or twisted pairs, to achieve impedance transformation. They are typically used in applications where compact size and low cost are priorities. These baluns are ideal for RF applications where space is limited, such as in mobile devices and compact antennas.

3. Hybrid Baluns

Hybrid baluns combine the features of both transformer and transmission line baluns. They offer a balance between performance and size, making them suitable for a wide range of applications. Hybrid baluns are often used in systems where both high performance and compact design are required, such as in satellite communication and radar systems.

How to choose Balun?

When selecting a balun, several key parameters should be considered:

Frequency Range: Ensure the balun supports the frequency range of your application.
Impedance Matching: Choose a balun that matches the impedance of your system to minimize reflection and loss.
Power Handling: Consider the power levels the balun must handle without distortion or damage.
Insertion Loss: Opt for a balun with low insertion loss to maintain signal strength.
Size and Form Factor: Ensure the balun fits within the physical constraints of your design.

Evaluating product quality involves checking supplier certifications, reviewing customer feedback, and assessing the manufacturer's reputation. Environmental factors such as temperature, humidity, and mechanical stress should also be considered, as they can affect balun performance. Proper installation is crucial, so follow manufacturer guidelines to ensure optimal operation.

Applications of Balun

1. Telecommunications

In telecommunications, baluns are used to connect balanced lines, such as twisted pairs, to unbalanced lines, like coaxial cables. This application is crucial for reducing signal interference and ensuring clear communication over long distances.

2. Broadcasting

Broadcasting systems employ baluns to match the impedance between antennas and transmission lines, ensuring efficient signal transmission and reducing power loss. They are vital in both radio and television broadcasting.

3. Medical Imaging

In medical imaging, particularly MRI systems, baluns help in reducing electromagnetic interference, ensuring high-quality imaging results. They are used to balance the signals in the RF coils, improving the clarity and accuracy of the images.

4. Aerospace and Defense

Baluns are used in radar and communication systems within the aerospace and defense industries. They ensure signal integrity and reduce noise, which is critical for accurate data transmission and reception in these high-stakes environments.

5. Consumer Electronics

In consumer electronics, baluns are used in devices like televisions and radios to connect different types of cables and improve signal quality. They help in minimizing interference from other electronic devices, enhancing the user experience.