Tin/Silver/Copper (Sn/Ag/Cu) RF Transformers 24

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Part	Manufacturer	Transformer Type	Mounting Feature	Approvals (V)	Terminal Finish	Power Rating	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	Load Resistance	Additional Features	JESD-609 Code	Maximum Cutoff Frequency	Minimum Operating Frequency	Length	Maximum Operating Frequency
BAL-NRF02D3	STMicroelectronics	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)				1.9 dB		TAPE & REEL					L1.4XB0.86XH0.64 (mm)	105 Cel		2400 GHz	-40 Cel	.64 mm	.86 mm		HEIGHT DIMENSION INCLUDES WITH TERMINALS	e1	2540 MHz		1.4 mm
BALF-SPI2-02D3	STMicroelectronics	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)				3.6 dB		TR						105 Cel			-40 Cel	.68 mm	1.6 mm		HEIGHT DIM INCLUDES TERMINALS ALSO	e1			2.15 mm
Z9314-ALC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)				1.1 dB	4.5 uH	TR, EMBOSSED PLASTIC, 7 INCH						85 Cel		.35 GHz	-40 Cel	4.83 mm	6.1 mm			e1	1700 MHz		6.35 mm
TTWB2040LB	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.4 dB	25 uH	TR		250 mA	1	Other Transformers	6.35mm X 6.1mm X 4.7mm	85 Cel	POWER	.15 GHz	-40 Cel	4.7 mm	6.1 mm	.16 ohm	IMPEDANCE RATIO IS 1:4	e1	400 MHz	150 KHz	6.48 mm	400000 KHz
TTWB2040LD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.4 dB	25 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.15 GHz	-40 Cel	4.7 mm	6.1 mm	.16 ohm	IMPEDANCE RATIO IS 1:4	e1	400 MHz	150 KHz	6.48 mm	400000 KHz
Z9314-ALB	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)				1.1 dB	4.5 uH	TR					L6.35XB6.1XH4.83 (mm)	85 Cel		.35 GHz	-40 Cel	4.83 mm	6.1 mm			e1	1700 MHz		6.35 mm
Z9314-ALD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)				1.1 dB	4.5 uH	TR, EMBOSSED PLASTIC, 13 INCH					L6.35XB6.1XH4.83 (mm)	85 Cel		.35 GHz	-40 Cel	4.83 mm	6.1 mm			e1	1700 MHz		6.35 mm
UWB1-85EC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT	AEC-Q200	Tin/Silver/Copper (Sn/Ag/Cu)				1.5 dB	3.6 uH	TR, EMBOSSED PLASTIC, 7 INCH						125 Cel		1 GHz	-40 Cel	3.175 mm	3.175 mm		IMPEDANCE RATIO IS 1:1	e1	8500 MHz		4.06 mm
TTWB-1-BLD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.4 dB	22 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.13 GHz	-40 Cel	4.7 mm	6.1 mm	.07 ohm	IMPEDANCE RATIO IS 1:1	e1	425 MHz	130 KHz	6.48 mm	425000 KHz
WBC4-6TLC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)	.25 W	1	300 V	.65 dB	9 uH	TR, EMBOSSED PLASTIC, 7 INCH	.25 A		1	Other Transformers	L4.45XB4.19XH3.05 (mm)	85 Cel	ISOLATION	.3 GHz	-40 Cel	3.05 mm	4.19 mm	.2 ohm	IMPEDANCE RATIO IS 1:4	e1	700 MHz	300 KHz	4.45 mm	700000 KHz
JA4220-ALC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	300 V	.2 dB		TR, EMBOSSED PLASTIC, 7 INCH	.25 A		1	Other Transformers	L3.81XB3.81XH3.05 (mm)	85 Cel	SIGNAL	.1 GHz	-40 Cel	3.05 mm	3.81 mm	.12 ohm		e1	3500 MHz	100 KHz	3.81 mm	3500000 KHz
TTWB-4-BLD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.5 dB	25 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.14 GHz	-40 Cel	4.7 mm	6.1 mm	.135 ohm	IMPEDANCE RATIO IS 1:4	e1	700 MHz	140 KHz	6.48 mm	700000 KHz
TTWB1010-1LD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.2 dB	95 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.03 GHz	-40 Cel	4.7 mm	6.1 mm	.2 ohm	IMPEDANCE RATIO IS 1:1	e1	250 MHz	30 KHz	6.48 mm	250000 KHz
WBC1-1LC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)				.4 dB	10 uH	TR, EMBOSSED PLASTIC, 7 INCH					L4.45XB4.19XH3.05 (mm)	85 Cel		.4 GHz	-40 Cel	3.05 mm	4.19 mm		IMPEDANCE RATIO IS 1:1	e1	600 MHz		4.45 mm
TTWB-1-CLD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.6 dB	22 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.1 GHz	-40 Cel	4.7 mm	6.1 mm	.07 ohm	IMPEDANCE RATIO IS 1:1	e1	300 MHz	100 KHz	6.48 mm	300000 KHz
TTWB1010LD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.2 dB	780 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.0035 GHz	-40 Cel	4.7 mm	6.1 mm	.32 ohm	IMPEDANCE RATIO IS 1:1	e1	125 MHz	3.5 KHz	6.48 mm	125000 KHz
TTWB3010-1LD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.2 dB	95 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.03 GHz	-40 Cel	4.7 mm	6.1 mm	.2 ohm	IMPEDANCE RATIO IS 1:1	e1	250 MHz	30 KHz	6.48 mm	250000 KHz
TTWB-1-ALD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.6 dB	40 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.08 GHz	-40 Cel	4.7 mm	6.1 mm	.07 ohm	IMPEDANCE RATIO IS 1:1	e1	450 MHz	80 KHz	6.48 mm	450000 KHz
TTWB-16-BLB	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.3 dB	75 uH	TR		250 mA	1	Other Transformers	6.35mm X 6.1mm X 4.7mm	85 Cel	POWER	.075 GHz	-40 Cel	4.7 mm	6.1 mm	.91 ohm	IMPEDANCE RATIO IS 1:16	e1	90 MHz	75 KHz	6.48 mm	90000 KHz
TTWB-16-BLD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.3 dB	75 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.075 GHz	-40 Cel	4.7 mm	6.1 mm	.91 ohm	IMPEDANCE RATIO IS 1:16	e1	90 MHz	75 KHz	6.48 mm	90000 KHz
TTWB-4-ALD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.5 dB	25 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.15 GHz	-40 Cel	4.7 mm	6.1 mm	.135 ohm	IMPEDANCE RATIO IS 1:4	e1	500 MHz	150 KHz	6.48 mm	500000 KHz
TTWB2010LD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)		1	400 V	.2 dB	780 uH	TR, EMBOSSED PLASTIC, 13 INCH		250 mA	1	Other Transformers	L6.35XB6.1XH4.7 (mm)	85 Cel	POWER	.0035 GHz	-40 Cel	4.7 mm	6.1 mm	.32 ohm	IMPEDANCE RATIO IS 1:1	e1	125 MHz	3.5 KHz	6.48 mm	125000 KHz
UWB4-45EC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT	AEC-Q200	Tin/Silver/Copper (Sn/Ag/Cu)				1.3 dB	7.5 uH	TR, EMBOSSED PLASTIC, 7 INCH						125 Cel		.5 GHz	-40 Cel	3.175 mm	3.175 mm		IMPEDANCE RATIO IS 1:4	e1	4500 MHz		4.06 mm
BAL-CW1250D3	STMicroelectronics	RF TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper (Sn/Ag/Cu)				.97 dB		TR, 7 INCH						85 Cel		2400 GHz	-30 Cel	.69 mm	1.04 mm			e1	2500 MHz		1.25 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.