Datasheet 3D Model

AR458RFW Series

Outgassing Compliant Wideband Transformers

AR458RFW Series features high temperature materials allowing operation in ambient temperatures up to 155°C.

Miniature wideband transformer: 4 mm square 3 mm high.
300 V interwinding isolation, 1/4 Watt RF input power.
250 mA max current rating.
Passes NASA low outgassing specifications.
Leach-resistant base metalization with tin-lead (Sn-Pb) terminations ensures the best possible board adhesion.
Tin-lead (63/37) over silver-platinum-glass frit terminations.

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Specifications

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

Part number 1	L min per winding (µH) 2		DCR max (mΩ) 3		Imp. ratio pri:sec 4	Current rating (mA)	Insertion loss (db)	DC imbalance 5	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
Part number 1	Pri	Sec	Pri	Sec	Imp. ratio pri:sec 4	Current rating (mA)	Insertion loss (db)	DC imbalance 5	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
AR458RFW01A1SZ	7.5	7.5	108	108	1 : 1	250	0.4	-	0.47 — 950	300	A
AR458RFW01B1SZ	2.7	2.7	52.0	52.0	1 : 1	250	0.8	36.0	1.3 — 1100	300	B
AR458RFW02B1SZ	7.3	15	92.0	155	1 : 2	250	0.45	8.5	0.48 — 700	300	B
AR458RFW03B1SZ	4.8	15	78.0	155	1 : 3	250	0.6	8.5	0.63 — 830	300	B
AR458RFW04B1SZ	1.2	4.8	46.0	62.0	1 : 4	250	1.8	30.0	3 — 1100	300	B
AR458RFW04B2SZ	1.2	4.8	56.0	85.0	1 : 4	250	1.8	15.0	3.2 — 1150	300	B
AR458RFW04B3SZ	2.7	11	72.0	112	1 : 4	250	0.85	10.0	1.2 — 1000	300	B
AR458RFW04B4SZ	4.8	19	90.0	155	1 : 4	250	0.5	7.5	0.75 — 900	300	B
AR458RFW04C1SZ	1.2	4.8	36.0	53.0	1 : 4	250	1.6	30.0	3.7 — 1600	300	C
AR458RFW08B1SZ	2.7	19	54.0	155	1 : 8	250	0.9	17.0	1.4 — 950	300	D
AR458RFW09B1SZ	4.8	43	85.0	222	1 : 9	250	0.5	5.0	0.68 — 550	300	B
AR458RFW16B1SZ	2.7	43	72.0	222	1 : 16	250	0.85	5.0	1.36 — 420	300	B

Notes

When ordering, please specify screening code: e.g. AR458RFW04C1SZ.
Inductance measured at 100 kHz, 0.1 V, 0 Adc on an Agilent/HP 4192 or equivalent.
DCR measured on a micro-ohmmeter.
Impedance ratio is for the full primary winding to the full secondary winding.
DC imbalance is the maximum difference in current measured at pins 4 and 6 with the source at pin 5. Inductance drop is 15% at maximum imbalance.

Screening:

Z = Unscreened
H = Group A screening per Coilcraft CP-SA-10001
2 = EEE-INST-002 level 2
3 = EEE-INST-002 level 3
4 = MIL-STD-981 Class B
5 = MIL-STD-981 Class S
F = Screening per ESCC 3201
All screening performed to the document’s latest revision Custom screening also available
Note: Screening T and U have been replaced with more detailed codes 4, 5, and 1, 2, 3, respectively. Codes T and U can still be used, if necessary.

Environmental

Ambient temperature range:

-55°C to +155°C

Storage temperature range:

Component: –55°C to +155°C
Tape and reel packaging: –55°C to +80°C

Maximum part temperature:

+155°C (ambient + temp rise)

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

See FIT/MTBF Calculations