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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

Datasheet 3D Model

YA9219 Surface Mount

Wideband RF Transformer

The YA9219-AL Wideband Transformer with an integrated common-mode choke combines high-speed signal transmission, isolation, and effective common-mode noise filtering in a single compact component. This integrated design helps simplify PCB layout, save valuable board space, and ensure compliance with EMI/EMC requirements, while maintaining the high performance required for 10GBASE-T1 Ethernet applications.

Cost effective surface mount wideband transformer
300 V one minute isolation (hipot) from primary to secondary
AEC-Q200 qualified

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Specifications

Electrical specifications at 25°C.

Part number (Hover for schematics)	L min per winding (µH) 1		DCR max (mΩ) 2		Bandwidth (MHz)	Isolation Voltage (Vrms) 3	Turns Ratio
Part number (Hover for schematics)	Pri	Sec	Pri	Sec	Bandwidth (MHz)	Isolation Voltage (Vrms) 3	Turns Ratio
YA9219-ALD	127	65	350	150	- — -	300	1 : 0.714

Notes

Inductance tested at 10 kHz, 0.1 Vrms, 0 Adc.
DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
300 Vrms, one minute isolation (hipot) from primary to secondary.

Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

Termination:

Terminations RoHS compliant tin-silver-copper over tin over nickel over phos bronze. Other terminations available at additional cost.

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +125°C

Storage temperature range:

Storage temperature Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Attenuation vs Frequency (Scc21)

Insertion Loss (Sdd21)

Return Loss (Sdd11)

Schematics

Connect pin 6 and pin 4 on PC board.

Physical characteristics

Tape and Reel specification

Parts per reel		Reel dimensions (mm)					Tape dimensions (mm)						Orientation
7" (178 mm)	13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
	1000	330	100	13	22,4	16,4	16	12	4	2	5,0	0,35

General specification

Core Material:

Ferrite

Weight:

250 – 270 mg

Packaging:

1000/13″ reel Plastic tape: 16 mm wide, 0.35 mm thick, 12 mm pocket spacing, 5.0 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCBt_Washing.pdf.

YA9219 Surface Mount

Wideband RF Transformer