RF Transformers

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Part	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	Load Resistance	Additional Features	JESD-609 Code	Maximum Cutoff Frequency	Minimum Operating Frequency	Length	Turns Ratio (Np:Ns)	Maximum Operating Frequency
617DB-1018	Toko	RF TRANSFORMER	SURFACE MOUNT	B4F								3 dB							L4.4XB3.8XH3.2 (mm)			2 GHz		3.2 mm	3.8 mm				2000 MHz		4.4 mm	1:1
ADT2-1T+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT	ADT2-1T+		Tin (Sn) - with Nickel (Ni) barrier		.25 W		1		3 dB		TAPE & REEL		30 mA	1	Other Transformers	L7.87XB5.59XH2.84 (mm)	85 Cel	MATCHING	.4 GHz	-20 Cel	2.84 mm	5.59 mm		OHMS RATIO IS 2	e3	450 MHz	400 KHz	7.87 mm	1:1.414	450000 KHz
ADT2-1T	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN LEAD		.25 W		1		3 dB				30 mA	1	Other Transformers	L7.87XB5.59XH2.84 (mm)	85 Cel	MATCHING	.4 GHz	-20 Cel	2.84 mm	5.59 mm		OHMS RATIO IS: 2	e0	450 MHz	400 KHz	7.87 mm		450000 KHz
ADTT1-1+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN OVER NICKEL		.25 W		1		3 dB		TAPE & REEL		30 mA	1	Other Transformers	L7.87XB5.59XH2.84 (mm)	85 Cel	MATCHING	.3 GHz	-20 Cel	2.84 mm	5.59 mm		OHMS RATIO IS 1	e3	300 MHz	300 KHz	7.87 mm	1:1	300000 KHz
ADTT1-1	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN LEAD		.25 W		1		3 dB				30 mA	1		L7.87XB5.59XH2.84 (mm)	85 Cel	MATCHING	.3 GHz	-20 Cel	2.84 mm	5.59 mm			e0	300 MHz	300 KHz	7.87 mm		300000 KHz
CX2032	Pulse Electronics	RF TRANSFORMER	SURFACE MOUNT	CX2032								.6 dB		TUBE					9.14mm X 6.73mm X 2.49mm	85 Cel			-40 Cel	2.49 mm	6.73 mm		IMPEDANCE RATIO IS 1:4CT				9.14 mm	1:2CT
CX2078	Pulse Electronics	RF TRANSFORMER	SURFACE MOUNT	CX2078	UL							.6 dB		TRAY					4.3mm X 2.69mm X 3.0mm	85 Cel		5 GHz	-40 Cel	3 mm	2.69 mm		HEIGHT DIMENSION INCLUDES TERMINAL ALSO, IMPEDANCE RATIO IS 1:1		500 MHz		4.3 mm	1:1
HHM1520	TDK	RF TRANSFORMER	SURFACE MOUNT				50 OHMS		100 OHMS			1 dB		REEL				Other Transformers	L2.0XB1.25XH0.95 (mm)	85 Cel	MATCHING	2400 GHz	-40 Cel	.95 mm	1.25 mm				2500 MHz	2400000 KHz	2 mm		2500000 KHz
LDB182G5010G-120	Murata Manufacturing	RF TRANSFORMER	SURFACE MOUNT			Tin (Sn)	50 OHMS		100 OHMS			1.2 dB		TAPE & REEL				Other Transformers	L1.6XB0.8XH0.6 (mm)	85 Cel	SIGNAL	2300 GHz	-40 Cel	.6 mm	.8 mm			e3	2700 MHz	2300000 KHz	1.6 mm		2700000 KHz
LDB212G4005C-001	Murata Manufacturing	RF TRANSFORMER	SURFACE MOUNT			Tin (Sn)						.9 dB							L2.0XB1.25XH0.95 (mm)	85 Cel		2300 GHz	-40 Cel	.95 mm	1.25 mm			e3	2500 MHz		2 mm
LDB31900M20C-416	Murata Manufacturing	RF TRANSFORMER	SURFACE MOUNT			TIN	50 OHMS		200 OHMS			.9 dB		TAPE & REEL					L1.6XB0.8XH0.6 (mm)	85 Cel	SIGNAL	800 GHz	-40 Cel	.6 mm	.8 mm			e3	1000 MHz	800000 KHz	1.6 mm		1000000 KHz
MABA-010125-TC1113	M/a-com Technology Solutions	RF TRANSFORMER	SURFACE MOUNT					.25 W		1		2.8 dB		TAPE & REEL	.05 A		1	Other Transformers	L3.81XB3.81XH2.8 (mm)	85 Cel	SIGNAL	4.5 GHz	-40 Cel	2.8 mm	3.81 mm		BREADTH DIM. INCLUDES TERMINALS ALSO; IMPEDANCE RATIO IS 1:1		3000 MHz	4500 KHz	3.81 mm	1:1	3000000 KHz
P3181	Etal Group Ab	RF TRANSFORMER	SURFACE MOUNT		IEC60950; UL	Pure Tin (Sn)							10800 uH	TUBE					L13.0XB9.0XH7.0 (mm)	85 Cel		.00003 GHz	-25 Cel	7 mm	9 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO		.004 MHz		13 mm	1.1:1
PA0907NL	Pulse Electronics	RF TRANSFORMER	SURFACE MOUNT										660 uH	TRAY					L29.46XB25.4XH10.2 (mm)	125 Cel		.2 GHz	-40 Cel	10.2 mm	25.4 mm				.7 MHz		29.46 mm
TCM2-43X+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT									3 dB		TR, 13 INCH					L4.06XB3.81XH4.06 (mm)	85 Cel		10 GHz	-40 Cel	4.06 mm	3.81 mm		LENGTH & HEIGHT DIM INCLUDE TERMINAL ALSO		4000 MHz		4.06 mm
TFSZ06052460-3310A2X	TDK	RF TRANSFORMER	SURFACE MOUNT									.65 dB		TR, 7 INCH						85 Cel		2300 GHz	-40 Cel	.25 mm	.5 mm				2690 MHz		.65 mm
X4BD130LTI	Ttm Technologies	RF TRANSFORMER	SURFACE MOUNT									1 dB		TR, 7 INCH						140 Cel		9200 GHz	-55 Cel	.62 mm	.94 mm				16150 MHz		1.69 mm
1720BL15A0100E	Johanson Technology	RF TRANSFORMER	SURFACE MOUNT			TIN						1.5 dB		TR					L2.0XB1.25XH0.95 (mm)	105 Cel		625 GHz	-40 Cel	.95 mm	1.25 mm			e3	2815 MHz		2 mm
1720BL15B0050	Johanson Technology	RF TRANSFORMER	SURFACE MOUNT	1720BL15B0050								1.5 dB							L2.01XB1.24XH0.94 (mm)	85 Cel		625 GHz	-40 Cel	.94 mm	1.24 mm				2815 MHz		2.01 mm
1812WBT-5LC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Gold (Au) - with Nickel (Ni) barrier						1.5 dB	.09 uH	TR, EMBOSSED PLASTIC, 7 INCH					L4.95XB3.81XH3.43 (mm)	85 Cel		48 GHz	-40 Cel	3.43 mm	3.81 mm			e4	645 MHz		4.95 mm
ADT1.5-122+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN OVER NICKEL						2 dB		TR, 13 INCH					L7.87XB5.59XH2.84 (mm)	85 Cel		20 GHz	-40 Cel	2.84 mm	5.59 mm		HEIGHT DIM INCLUDES TERMINAL ALSO	e3	1200 MHz		7.87 mm
ADT4-1T	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN LEAD		1 W		1		3 dB				30 mA	1	Other Transformers	L7.87XB5.59XH2.84 (mm)	85 Cel	MATCHING	9 GHz	-20 Cel	2.84 mm	5.59 mm		OHMS RATIO IS 4	e0	625 MHz	9000 KHz	7.87 mm		625000 KHz
ADT4-1T+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT	ADT4-1T+		TIN OVER NICKEL		1 W		1		3 dB		TAPE & REEL		30 mA	1	Other Transformers	L7.87XB5.59XH2.84 (mm)	85 Cel	MATCHING	9 GHz	-20 Cel	2.84 mm	5.59 mm		0HMS RATIO IS 4	e3	625 MHz	9000 KHz	7.87 mm	1:2	625000 KHz
ADT4-1T-2	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT	ADT4-1T-2								3 dB								100 Cel		.2 GHz	-55 Cel				IMPEDANCE RATIO IS 4		350 MHz
B0430J50100AHF	Ttm Technologies	RF TRANSFORMER	SURFACE MOUNT			NICKEL GOLD	50 OHMS	1 W	100 OHMS			4 dB		TR, 7 INCH				Other Transformers	L2.04XB1.29XH0.64 (mm)	105 Cel	MATCHING	400 GHz	-55 Cel	.64 mm	1.29 mm			e4	3000 MHz	400000 KHz	2.04 mm		3000000 KHz
BALFHB-WL-03D3	STMicroelectronics	RF TRANSFORMER	SURFACE MOUNT									1.4 dB		TR						105 Cel		862 GHz	-40 Cel	.68 mm	1.88 mm		HEIGHT DIM INCLUDE TERMINAL ALSO		928 MHz		2.15 mm
HHM1902B1	TDK	RF TRANSFORMER	SURFACE MOUNT									.8 dB								85 Cel		2400 GHz	-40 Cel	.5 mm	.5 mm				2500 MHz		1 mm
MABA-008509-CT69TB	M/a-com Technology Solutions	RF TRANSFORMER	SURFACE MOUNT	MABA-008509-CT69TB								1.5 dB							L6.02XB2.64XH4.54 (mm)	85 Cel		50 GHz	-40 Cel	4.54 mm	2.64 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO; IMPEDANCE RATIO IS 1:1		1200 MHz		6.02 mm
MABA-010129-CT4A40	M/a-com Technology Solutions	RF TRANSFORMER	SURFACE MOUNT									2 dB		TAPE & REEL					L4.27XB2.69XH3.61 (mm)	85 Cel		5 GHz	-40 Cel	3.61 mm	2.69 mm		HEIGHT DIM. INCLUDES TERMINALS ALSO; CENTER TAPPED SECONDARY; IMPEDANCE RATIO IS 1:4		1200 MHz		4.27 mm
MABACT0069	M/a-com Technology Solutions	RF TRANSFORMER	SURFACE MOUNT									1.5 dB		TAPE & REEL					L6.02XB2.64XH4.54 (mm)	85 Cel		50 GHz	-40 Cel	4.54 mm	2.64 mm		HEIGHT DIMENSION INCLUDES TERMINALS ALSO; IMPEDANCE RATIO IS 1:1		1200 MHz		6.02 mm
P3191	Etal Group Ab	RF TRANSFORMER	SURFACE MOUNT		IEC60950; UL	PURE TIN						4.5 dB	2400000 uH	BULK					L13.0XB9.0XH7.0 (mm)	85 Cel			-25 Cel	7 mm	9 mm						13 mm
P3801	Etal Group Ab	RF TRANSFORMER	THROUGH HOLE MOUNTED		IEC; CUL; UL							1.5 dB								70 Cel		.0002 GHz	0 Cel	12.7 mm	18 mm				.004 MHz		18 mm
PCT-27	Stancor Products	RF TRANSFORMER	THROUGH HOLE MOUNTED																	105 Cel		.0003 GHz	-55 Cel	11.811 mm	7.874 mm		STANDARD: MIL-T-27		.1 MHz		10.414 mm	2:1:1
PCT-77	Stancor Products	RF TRANSFORMER	THROUGH HOLE MOUNTED																	105 Cel		.0003 GHz		11.81 mm	7.874 mm				.1 MHz		10.414 mm	1:1
PCT-78	Stancor Products	RF TRANSFORMER	THROUGH HOLE MOUNTED																	105 Cel		.0003 GHz	-55 Cel	11.811 mm	7.874 mm		STANDARD: MIL-T-27		.1 MHz		10.414 mm	1:1
RFXF9503	Rf Micro Devices	RF TRANSFORMER	SURFACE MOUNT	RFXF9503								3.5 dB		TAPE & REEL					L3.81XB2.29XH2.79 (mm)	85 Cel		3 GHz	-40 Cel	2.79 mm	2.29 mm		IMPEDANCE RATIO IS : 1:1		3000 MHz		3.81 mm
WBC1-1TLB	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Tin/Silver/Copper (Sn95.5Ag3.8Cu0.7)		.25 W		1	300 V	.58 dB	9.5 uH	TR	.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
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
PWB1010-1LC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Tin/Silver/Copper -Matte Tin -with Nickel barrier		.25 W		1	300 V	.2 dB	95 uH	TR, EMBOSSED PLASTIC, 7 INCH		250 mA	1	Other Transformers	L6.48XB7.2XH4.45 (mm)	85 Cel	SIGNAL	.03 GHz	-40 Cel	4.45 mm	6.48 mm	.2 ohm	HEIGHT DIM INCLUDES TERMINAL ALSO		250 MHz		6.77 mm
PWB3010LC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Tin/Silver/Copper -Matte Tin -with Nickel barrier		.25 W		1	300 V	.2 dB	780 uH	TR, EMBOSSED PLASTIC, 7 INCH		250 mA	1	Other Transformers	L6.48XB7.2XH4.45 (mm)	85 Cel	SIGNAL	.0035 GHz	-40 Cel	4.45 mm	6.48 mm	.32 ohm	HEIGHT DIM INCLUDES TERMINAL ALSO		125 MHz		6.77 mm
PWB-2-BLC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Tin/Silver/Copper -Matte Tin -with Nickel barrier		.25 W		1	300 V	.35 dB	75 uH	TR, EMBOSSED PLASTIC, 7 INCH		250 mA	1	Other Transformers	L6.48XB7.2XH4.45 (mm)	85 Cel	SIGNAL	.2 GHz	-40 Cel	4.45 mm	6.48 mm	.13 ohm	HEIGHT DIM INCLUDES TERMINAL ALSO		400 MHz		6.77 mm
SWB2010-1-SMLD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT										95 uH	TR, EMBOSSED PLASTIC, 13 INCH						85 Cel		.04 GHz	-40 Cel	5.72 mm	6.86 mm		IMPEADANCE RATIO: 1:1		175 MHz		7.87 mm
WB2-1TL	Coilcraft	RF TRANSFORMER	THROUGH HOLE MOUNTED			Matte Tin (Sn) - with Nickel (Ni) barrier						1 dB	38 uH	TUBE					L8.26XB7.24XH5.72 (mm)	85 Cel		.07 GHz	-40 Cel	5.72 mm	7.24 mm		IMPEDANCE RATIO IS 1 : 2	e3	400 MHz		8.26 mm
WBC16-1TLC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5)		.25 W		1	300 V	.8 dB	5 uH	TR, EMBOSSED PLASTIC, 7 INCH	.25 A		1	Other Transformers	L4.45XB4.19XH3.05 (mm)	85 Cel	ISOLATION	.6 GHz	-40 Cel	3.05 mm	4.19 mm	.23 ohm	IMPEDANCE RATIO IS 1:16	e1	300 MHz	600 KHz	4.45 mm		300000 KHz
HHM1523C1	TDK	RF TRANSFORMER	SURFACE MOUNT									1.1 dB		REEL					L2.0XB1.25XH0.95 (mm)	85 Cel		880 GHz	-40 Cel	.95 mm	1.25 mm				960 MHz		2 mm
HHM1564A4	TDK	RF TRANSFORMER	SURFACE MOUNT									1 dB		REEL					L2.0XB1.25XH0.95 (mm)	85 Cel		824 GHz	-40 Cel	.95 mm	1.25 mm				894 MHz		2 mm
WBC2-1TLC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5)						.5 dB	10 uH	TR, EMBOSSED PLASTIC, 7 INCH					L4.45XB4.19XH3.05 (mm)	85 Cel		.2 GHz	-40 Cel	3.05 mm	4.19 mm		IMPEDANCE RATIO IS 1:2	e1	500 MHz		4.45 mm
PWB1010LC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Tin/Silver/Copper -Matte Tin -with Nickel barrier		.25 W		1	300 V	.2 dB	780 uH	TR, EMBOSSED PLASTIC, 7 INCH		250 mA	1	Other Transformers	L6.48XB7.2XH4.45 (mm)	85 Cel	SIGNAL	.0035 GHz	-40 Cel	4.45 mm	6.48 mm	.32 ohm	HEIGHT DIM INCLUDES TERMINAL ALSO		125 MHz		6.77 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.