This SMD balun RF transformer uses enamelled copper wire winding and a surface-mount package. Impedance ratio is 1:1, characteristic impedance is 75Ω, and frequency range is 5-3000MHz. RF power: 0.25W. DC current: 30mA. A balun transformer is used for balanced-to-unbalanced signal conversion, converting balanced signals (differential signals) to unbalanced signals (single-ended signals), or vice versa. It is widely used in broadband wireless communication, VHF/UHF receivers/transmitters, and push-pull amplifiers in RF circuits.

Features

• Impedance ratio – 1:1

• Characteristic impedance – 75Ω

• Frequency range – 5-3000MHz

• RF power – 0.25W

• DC current – 30mA

• Winding material – enamelled copper wire

• Package type – SMD surface mount

• Operating temperature – -40°C to 85°C

Applications

• Broadband wireless communication

• VHF/UHF receivers

• VHF/UHF transmitters

• Push-pull amplifiers

• RF front-end modules

• Antenna feeding networks

• Mixers

• Broadband matching networks

ELECTRONICAL SPECIFICATIONS(25℃,Z=75Ω)

• Frequency: 5-3000MHz
• Operating temperature: -40℃ to 85℃
• Storage temperature: -55℃ to 100℃

FAQ

Q: What is the main function of a balun transformer?

A: A balun transformer is used for balanced-to-unbalanced conversion, converting balanced signals (differential signals) to unbalanced signals (single-ended signals), or vice versa. It is widely used in RF circuits, mixers, antenna feeding, and broadband matching networks.

Q: What does a 1:1 impedance ratio mean?

A: A 1:1 impedance ratio means the primary and secondary impedances are equal (both 75Ω). It does not perform impedance transformation, but only provides balanced-to-unbalanced signal conversion. It is suitable for RF circuits that require balun conversion without impedance transformation.

Q: How to apply for samples? What is the lead time?

A: You can submit a sample application through our website or email. Please provide your company information and target model (including frequency and impedance requirements). Samples are free of charge and will be shipped within 3-5 working days. Mass order lead time is generally 2-8 weeks.