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

Surface Mount

Wideband RF Transformers

These products are not available in RoHS-compliant versions. Product contains lead. Contact Coilcraft for current status.

Wide frequency range: 0.26 MHz to 1 GHz
250 mA max current rating
Applications include impedance matching, voltage or current transformation, DC isolation, balanced/unbalanced mixing, matching, power splitting, coupling and signal inversion

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Count	Unit price
1	$2.11
500	$1.89
1000	$1.65
5000	$1.43

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Specifications

Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.

Part number 1 (Hover for schematics)	L min per winding (µH) 2		DCR max (mΩ) 3		Imp. ratio pri:sec	Current rating (mA)	Insertion loss (db)	Bandwidth (MHz)
Part number 1 (Hover for schematics)	Pri	Sec	Pri	Sec	Imp. ratio pri:sec	Current rating (mA)	Insertion loss (db)	Bandwidth (MHz)
A9899-A	18.0	18.0	230.0	310.0	1 : 1	250	0.6	0.26 — 930
A9900-A	7.0	7.0	200.0	200.0	1 : 1	250	1.2	0.525 — 1000
Z9169-A	1.8	1.8	35.0	40.0	1 : 1	250	1.2	3 — 1000

Notes

When ordering, please specify a packaging code: e.g. A9899-AC
Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4192 or equivalent.
DCR measured on a micro-ohmmeter at 25°C. For other operating temperatures, use this DCR at Temperature calculator.

Termination:

Tin-silver-copper over silver-platinum-glass frit.

Packaging:

1000/13″ reel; Plastic tape: 16 mm wide, 0.34 mm thick, 12 mm pocket spacing, 4,83 mm pocket depth.

Environmental

Ambient temperature range:

–40°C to +85°C

Storage temperature range:

Component: –40°C to +85°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

Frequency Response

Measured on a network analyzer (re: 50 Ohms)

Schematics

Physical characteristics

Tape and Reel specification

Parts per reel	Reel dimensions (mm)					Tape dimensions (mm)						Orientation
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	4,83	0,34

General specification

Core Material:

Ferrite

Weight:

168 mg

Packaging:

1000/13″ reel; Plastic tape: 16 mm wide, 0.34 mm thick, 12 mm pocket spacing, 4,83 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

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

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:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info

Surface Mount

Wideband RF Transformers