Name: SMD Balun RF Transformer Enameled Copper Wire Low Profile for Broadband Matching and Mixers
Brand: Shaanxi Shinhom Enterprise Co.,Ltd
SKU: RF3S-1601
Availability: InStock

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Features

Specifications

Frequency: 5-1500MHz

Input Return Loss: 16.0dB Min(23dB Typ.)

Output Return Loss: 16.0dB Min(25dB Typ.)

Coupling Return Loss: 16.0dB Min(22dB Typ.)

Operating Temperature: -40℃ To 85℃

Storage Temperature: -55℃ To 100℃

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SMD Balun RF Transformer enameled copper wire

low profile RF Transformer for broadband matching

RF Transformer for mixers with warranty

Basic Infomation

Place of Origin: China

Brand Name: Shinhom

Certification: RoHS

Model Number: RF3S-1601

Payment & Shipping Terms

Packaging Details: Carton

Delivery Time: 4~8 Weeks

Payment Terms: T/T

Supply Ability: 1000000/MONTH

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SMD Balun RF Transformer Enameled Copper Wire Low Profile for Broadband Matching and Mixers

Product Description

SMD Balun RF Transformers Coils with Enameled Copper Wire, Base Pin Terminal in Surface Mounting

The SMD balun RF transformer series uses a bifilar winding process with enamelled copper wire, offering high stability and a low-profile design. It is suitable for automated SMT placement. Multiple balun transformer types are available, suitable for double-balanced mixers, couplers, broadband impedance matching transformers, power combining and dividing networks, directional couplers, and cable modems in RF applications. The enamelled copper wire winding ensures excellent RF performance and long-term reliability. It is widely used in wireless communication, RF front-ends, test and measurement, and broadband network equipment.

Features

Enamelled copper wire winding – high stability
Bifilar winding – stable performance
Surface mount – suitable for SMT
Low-profile design – saves space
Suitable for balun transformers
Broadband impedance matching
Power combining and dividing
Directional coupler applications

Applications

Double-balanced mixers
Couplers
Broadband impedance matching transformers
Power combining and dividing networks
Directional couplers
DOCSIS 3.0/3.1 cable modems
RF front-end modules
Wireless communication equipment

ELECTRONICAL SPECIFICATIONS(25℃,Z=75Ω)

Parameter	Value
Frequency	5-1500MHz
Main line loss	1.7dB Max(0.8dB Typ.)
Coupling	16.0±0.8dB
Input return loss	16.0dB Min(23dB Typ.)
Output return loss	16.0dB Min(25dB Typ.)
Coupling return loss	16.0dB Min(22dB Typ.)
Isolation	20.0dB Min(30dB Typ.)
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 (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 are the advantages of the bifilar winding process?

A: Bifilar winding involves winding two enamelled copper wires side by side. This ensures tight coupling between the two windings, improving common-mode rejection ratio and phase/amplitude balance, thereby enhancing the high-frequency performance and stability of the balun transformer.

Q: What are the advantages of enamelled copper wire compared to ordinary copper wire?

A: Enamelled copper wire has an insulating enamel coating on the surface, ensuring electrical insulation between windings. It allows tight winding without short-circuit risks, while providing good high-frequency characteristics and heat resistance.

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Contact Person :	Jack wang
Tel :	13909218465
Fax :	86-029-87851840

SMD Balun RF Transformer Enameled Copper Wire Low Profile for Broadband Matching and Mixers

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