TIN SILVER COPPER RF Transformers 5

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Part RoHS Manufacturer Transformer Type Mounting Feature Manufacturer Series Approvals (V) Terminal Finish Impedance (Primary) Power Rating Impedance (Secondary) No. of Winding (Primary) Isolation Voltage Insertion Loss Inductance (Primary) Packing Method Output Current-1 Maximum DC Unbalance Current No. of Winding (Secondary) Sub-Category Dimensions Maximum Operating Temperature Application Minimum Cutoff Frequency Minimum Operating Temperature Height Width Diameter Nominal Input Voltage (V) Load Resistance Additional Features JESD-609 Code Maximum Cutoff Frequency Minimum Operating Frequency Length Turns Ratio (Np:Ns) Maximum Operating Frequency

BAL-NRF01D3

STMicroelectronics

RF TRANSFORMER

SURFACE MOUNT

TIN SILVER COPPER

2.25 dB

TAPE & REEL

L1.47XB1.01XH0.63 (mm)

105 Cel

2400 GHz

-40 Cel

.63 mm

1.01 mm

HEIGHT DIMENSION INCLUDES WITH TERMINAL

e1

2540 MHz

1.47 mm

WBC1-1TLC

Coilcraft

RF TRANSFORMER

SURFACE MOUNT

TIN SILVER COPPER

.25 W

1

300 V

.58 dB

9.5 uH

TR, EMBOSSED PLASTIC, 7 INCH

.25 A

1

Other Transformers

L4.45XB4.19XH3.05 (mm)

85 Cel

ISOLATION

.25 GHz

-40 Cel

3.05 mm

4.19 mm

.075 ohm

IMPEDANCE RATIO IS 1:1

e1

750 MHz

250 KHz

4.45 mm

750000 KHz

WBC4-1TLC

Coilcraft

RF TRANSFORMER

SURFACE MOUNT

TIN SILVER COPPER

1 dB

9 uH

TR, EMBOSSED PLASTIC, 7 INCH

L4.45XB4.19XH3.05 (mm)

85 Cel

.25 GHz

-40 Cel

3.05 mm

4.19 mm

IMPEDANCE RATIO IS 1:4

e1

750 MHz

4.45 mm

WBC8-1LC

Coilcraft

RF TRANSFORMER

SURFACE MOUNT

TIN SILVER COPPER

.6 dB

22 uH

TR, EMBOSSED PLASTIC, 7 INCH

L4.45XB4.19XH3.05 (mm)

85 Cel

.15 GHz

-40 Cel

3.05 mm

4.19 mm

IMPEDANCE RATIO IS 1:8

e1

600 MHz

4.45 mm

WBC4-4LB

Coilcraft

RF TRANSFORMER

SURFACE MOUNT

TIN SILVER COPPER

1 dB

9 uH

TR

L4.45XB4.19XH3.05 (mm)

85 Cel

.25 GHz

-40 Cel

3.05 mm

4.19 mm

IMPEDANCE RATIO IS 1:4

e1

800 MHz

4.45 mm

RF Transformers

RF transformers are a type of transformer used in radio frequency (RF) applications to match impedances and transform signal levels between different stages of a circuit. They are commonly used in RF amplifiers, filters, and mixers.

The primary function of an RF transformer is to match the impedance of the input and output stages of an RF circuit. Impedance matching is critical in RF applications to ensure maximum power transfer and signal integrity. RF transformers also help to transform the signal levels between stages of an RF circuit, such as between a high-impedance antenna and a low-impedance amplifier.

RF transformers are typically designed to operate at high frequencies, ranging from a few kHz to several GHz, depending on the specific application. They are also designed to handle high power levels and have low losses. The design of an RF transformer is usually optimized for a specific frequency range and bandwidth.

RF transformers are typically constructed with a magnetic core made of ferrite, powdered iron, or other high-permeability materials, and one or more coils wound around the core. The coils are usually made of copper wire with a thin insulating layer. The number of turns and the size of the wire are determined by the required impedance transformation and the frequency range of the circuit.