SURFACE MOUNT RF Transformers 256

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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	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
TC1-1-43A+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN OVER NICKEL						2 dB						L3.81XB3.81XH4.06 (mm)	85 Cel		650 GHz	-40 Cel	4.06 mm	3.81 mm		OHMS RATIO IS 1, BREADTH AND HEIGHT DIM INCLUDE TERMINALS ALSO	e3	4000 MHz		3.81 mm
TC2-1TG2+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			GOLD OVER NICKEL		.25 W		1		1 dB		TR, 13 INCH	30 mA	1	Other Transformers	L3.81XB3.81XH3.81 (mm)	85 Cel	MATCHING	3 GHz	-20 Cel	3.81 mm	3.81 mm			e4	300 MHz	3000 KHz	3.81 mm		300000 KHz
1812WBT-3LC	Coilcraft	RF TRANSFORMER	SURFACE MOUNT			Gold (Au) - with Nickel (Ni) barrier						1 dB	1.25 uH	TR, EMBOSSED PLASTIC, 7 INCH				L4.95XB3.81XH3.43 (mm)	85 Cel		4 GHz	-40 Cel	3.43 mm	3.81 mm			e4	200 MHz		4.95 mm
BLN1608LL01R2400A	Pulse Electronics	RF TRANSFORMER	SURFACE MOUNT									1.4 dB									2400 GHz		.65 mm	.8 mm				2500 MHz		1.6 mm
PA0908NL	Pulse Electronics	RF TRANSFORMER	SURFACE MOUNT										216 uH	TRAY				L29.46XB25.4XH10.2 (mm)	125 Cel		.2 GHz	-40 Cel	10.2 mm	25.4 mm				.7 MHz		29.46 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
B0310J50100AHF	Ttm Technologies	RF TRANSFORMER	SURFACE MOUNT			NICKEL GOLD						1 dB		TR, 7 INCH				L2.04XB1.29XH0.76 (mm)	140 Cel		300 GHz	-55 Cel	.76 mm	1.29 mm			e4	1000 MHz		2.04 mm
CX2041NL	Pulse Electronics	RF TRANSFORMER	SURFACE MOUNT	CX2041NL	UL			.25 W		1		.6 dB		TRAY		1	Other Transformers	L3.81XB3.81XH2.79 (mm)	85 Cel	SIGNAL	.05 GHz	-40 Cel	2.79 mm	3.81 mm		IMPEDANCE RATIO IS 1:1CT; HEIGHT DIM INCLUDES TERMINALS ALSO		450 MHz	750 KHz	3.81 mm	1:1CT	300000 KHz
HHM1907B1	TDK	RF TRANSFORMER	SURFACE MOUNT									.8 dB							85 Cel		4900 GHz	-40 Cel	.5 mm	.5 mm				5950 MHz		1 mm
HHM1917A5	TDK	RF TRANSFORMER	SURFACE MOUNT									.7 dB							85 Cel		2400 GHz	-40 Cel	.4 mm	.5 mm				2500 MHz		1 mm
TC1-1-43+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN OVER NICKEL						2 dB		TR, 13 INCH	30 mA		Other Transformers	L3.81XB3.81XH4.06 (mm)	85 Cel	SIGNAL	650 GHz	-40 Cel	4.06 mm	3.81 mm		HEIGHT & LENGTH DIM INCLUDES TERMINALS ALSO	e3	4000 MHz	650000 KHz	3.81 mm		4000000 KHz
TC1-1-43X+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN OVER NICKEL						2 dB						L3.81XB3.81XH4.06 (mm)	85 Cel		650 GHz	-40 Cel	4.06 mm	3.81 mm		BREADTH AND HEIGHT DIM INCLUDE TERMINAL ALSO, OHM RATIO: 1	e3	4000 MHz		3.81 mm
TC4-1T	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT	TC4-1T		TIN LEAD		.25 W		1		3 dB		TAPE & REEL	30 mA	1	Other Transformers	L3.81XB3.81XH3.81 (mm)	85 Cel	MATCHING	.5 GHz	-20 Cel	3.81 mm	3.81 mm		OHMS RATIO IS 4	e0	300 MHz	500 KHz	3.81 mm	1:2	300000 KHz
TC4-1T+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN OVER NICKEL		.25 W		1		2 dB		TAPE & REEL	30 mA	1	Other Transformers	L3.81XB3.81XH4.06 (mm)	85 Cel	MATCHING	.5 GHz	-20 Cel	4.06 mm	3.81 mm		OHMS RATIO IS 4, LENGTH AND HEIGHT DIM INCLUDE TERMINAL ALSO	e3	300 MHz	500 KHz	3.81 mm	1:4	300000 KHz
BAL-0006SMG	Marki Microwave	RF TRANSFORMER	SURFACE MOUNT									5.5 dB						L8.13XB8.13XH3.94 (mm)	100 Cel		.5 GHz	-55 Cel	3.94 mm	8.13 mm				6000 MHz		8.13 mm
HHM1520A2	TDK	RF TRANSFORMER	SURFACE MOUNT									1 dB		REEL				L2XB1.25XH0.95 (mm)	85 Cel		2300 GHz	-40 Cel	.95 mm	1.25 mm				2500 MHz		2 mm
HHM17147A1	TDK	RF TRANSFORMER	SURFACE MOUNT									2.5 dB							85 Cel		673 GHz	-40 Cel	.6 mm	.8 mm				2700 MHz		1.6 mm
NCR2-113+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT									2.7 dB		TR, 7 INCH				L2.49XB2.01XH0.89 (mm)	85 Cel		3500 GHz	-40 Cel	.89 mm	2.01 mm				11000 MHz		2.49 mm
NCR2-183+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT									2.5 dB		TR, 7 INCH					85 Cel		12000 GHz	-40 Cel	.89 mm	2.01 mm				18000 MHz		2.49 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
BL2012-10B0900T/LF	Advanced Ceramic X	RF TRANSFORMER	SURFACE MOUNT	BL2012								1.4 dB		TR, EMBOSSED PLASTIC, 7 INCH				L2.0XB1.25XH0.7 (mm)	85 Cel		800 GHz	-40 Cel	.7 mm	1.25 mm				1000 MHz		2 mm
HHM1570B1	TDK	RF TRANSFORMER	SURFACE MOUNT									1 dB		REEL				L2XB1.25XH0.95 (mm)	85 Cel		4900 GHz	-40 Cel	.95 mm	1.25 mm				5950 MHz		2 mm
TTWB2040	Coilcraft	RF TRANSFORMER	SURFACE MOUNT	TTWB		Tin/Lead (Sn/Pb)						.4 dB	25 uH	TAPE & REEL				L6.35XB6.1XH4.7 (mm)	85 Cel		.15 GHz	-40 Cel	4.7 mm	6.1 mm		IMPEDANCE RATIO 1:4	e0	400 MHz		6.35 mm	1:4
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
ATB3225-75032CT	TDK	RF TRANSFORMER	SURFACE MOUNT									2 dB							85 Cel		5 GHz	-25 Cel	2.3 mm	2.5 mm		IMPEDANCE RATIO IS 3:2		100 MHz		3.2 mm
BALFHB-WL-06D3	STMicroelectronics	RF TRANSFORMER	SURFACE MOUNT									.85 dB		TR					105 Cel		862 GHz	-40 Cel	.68 mm	1.83 mm				928 MHz		2.13 mm
BD3150N50100AHF	Ttm Technologies	RF TRANSFORMER	SURFACE MOUNT			NICKEL GOLD						.9 dB		TR, 7 INCH				L1.04XB1.04XH0.57 (mm)	140 Cel		3100 GHz	-55 Cel	.51 mm	1.04 mm			e4	7000 MHz		1.04 mm
T1-1T-KK81	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			Tin/Lead (Sn/Pb)		.25 W		1		3 dB			30 mA	1	Other Transformers	L7.62XB6.86XH5.84 (mm)	85 Cel	SIGNAL	.08 GHz	-20 Cel	5.84 mm	6.86 mm		OHMS RATIO IS 1	e0	200 MHz	80 KHz	7.62 mm		200000 KHz
T1-1T-KK81+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN OVER NICKEL		.25 W		1		3 dB			30 mA	1	Other Transformers	L7.62XB6.86XH5.84 (mm)	85 Cel	SIGNAL	.08 GHz	-20 Cel	5.84 mm	6.86 mm		OHMS RATIO IS 1	e3	200 MHz	80 KHz	7.62 mm		200000 KHz
TT1-6-KK81+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			Matte Tin (Sn) - with Nickel (Ni) barrier		.25 W		1		3 dB		TAPE & REEL		1	Other Transformers	L7.62XB6.86XH5.84 (mm)	85 Cel	MATCHING	.004 GHz	-20 Cel	5.84 mm	6.86 mm		OHMS RATIO IS 1	e3	300 MHz	4 KHz	7.62 mm	1:1	300000 KHz
TT1-6-KK81	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			Tin/Lead (Sn/Pb)						3 dB		TAPE & REEL				L7.62XB6.86XH5.84 (mm)	85 Cel		.004 GHz	-20 Cel	5.84 mm	6.86 mm		OHMS RATIO IS 1	e0	300 MHz		7.62 mm	1:1
WB2010-SMLD	Coilcraft	RF TRANSFORMER	SURFACE MOUNT	WB2010		Matte Tin (Sn) - with Nickel (Ni) barrier							780 uH	TR, EMBOSSED PLASTIC, 13 INCH				L8.26XB7.24XH5.72 (mm)	85 Cel		.005 GHz	-40 Cel	5.72 mm	7.24 mm		IMPEDANCE RATIO IS 1 : 1	e3	100 MHz		8.26 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
#617PT-2038=P3	Murata Manufacturing	RF TRANSFORMER	SURFACE MOUNT									4.5 dB		TR, PLASTIC, 13 INCH					85 Cel		5 GHz	-40 Cel	3.2 mm	2.7 mm				200 MHz		4.4 mm	1:1:2
4400BL15A0100E	Johanson Dielectrics	RF TRANSFORMER	SURFACE MOUNT			Silver/Platinum (Ag/Pt)						1.5 dB		TR, EMBOSSED PLASTIC, 7 INCH					85 Cel		2800 GHz	-40 Cel	.95 mm	1.25 mm			e4	6000 MHz		2 mm
C2268FNL	Pulse Electronics	RF TRANSFORMER	SURFACE MOUNT										7.5 uH					L12.65XB8.89XH5.08 (mm)	70 Cel			0 Cel	5.08 mm	8.89 mm						12.65 mm	1:1
HHM1903A1	TDK	RF TRANSFORMER	SURFACE MOUNT				50 OHMS		100 OHMS			1 dB		TAPE & REEL			Other Transformers	L1.0XB0.5XH0.5 (mm)	85 Cel	MATCHING	2400 GHz	-40 Cel	.5 mm	.5 mm				2500 MHz	2400000 KHz	1 mm		2500000 KHz
JT-1975	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			TIN LEAD		.25 W		1		3 dB		TAPE & REEL	30 mA	1	Other Transformers	L7.87XB7.11XH5.72 (mm)	85 Cel	MATCHING	.04 GHz	-20 Cel	5.72 mm	7.11 mm		OHMS RATIO IS 2.5, BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO	e0	80 MHz	40 KHz	7.87 mm	1:2.5	80000 KHz
JT-1975+	Mini-circuits	RF TRANSFORMER	SURFACE MOUNT			Tin (Sn) - with Nickel (Ni) barrier		.25 W		1		3 dB		TAPE & REEL	30 mA	1		L7.87XB7.11XH5.72 (mm)	85 Cel	MATCHING	.04 GHz	-20 Cel	5.72 mm	7.11 mm		OHMS RATIO IS 2.5, BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO	e3	80 MHz	40 KHz	7.87 mm	1:1.581	80000 KHz
LDB212G4020C-001	Murata Manufacturing	RF TRANSFORMER	SURFACE MOUNT			Tin (Sn)	50 OHMS		100 OHMS			1.05 dB		TAPE & REEL			Other Transformers	L2.0XB1.25XH0.95 (mm)	85 Cel	SIGNAL	2300 GHz	-40 Cel	.95 mm	1.25 mm			e3	2500 MHz	2300000 KHz	2 mm		2500000 KHz
LDB21924M05C-001	Murata Manufacturing	RF TRANSFORMER	SURFACE MOUNT			Tin (Sn)						1.4 dB						L2.0XB1.25XH0.95 (mm)	85 Cel		889 GHz	-40 Cel	.95 mm	1.25 mm			e3	960 MHz		2 mm
MABACT0048	M/a-com Technology Solutions	RF TRANSFORMER	SURFACE MOUNT									.9 dB							85 Cel		5 GHz	-40 Cel	2.5 mm	4.21 mm				200 MHz		4.21 mm
PA0909NL	Pulse Electronics	RF TRANSFORMER	SURFACE MOUNT										860 uH	TRAY				L29.46XB25.4XH10.2 (mm)	125 Cel		.2 GHz	-40 Cel	10.2 mm	25.4 mm				.7 MHz		29.46 mm
#458PT-2002=P3	Murata Manufacturing	RF TRANSFORMER	SURFACE MOUNT	B5F														L6.9XB3.8XH4.4 (mm)					4.4 mm	3.8 mm						6.9 mm
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

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.