Datasheet 3D Model

JA4641 Flyback Transformer

for Silicon Laboratories Si3402 PD Controller

Developed for Silicon Laboratories Si3402 PD Controller up to 15 W
Designed to operate in continuous mode at 250 kHz
36 – 72 Vdc input
AEC-Q200 Grade 3 (−40°C to +85°C)

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Count	Unit price
1	$3.67
175	$3.14
700	$2.75
1400	$2.14
2800	$1.83
5000	$1.66

For high volume or non-stock items, request a quote.

Packaging

D = 13" machine-ready reel

B = Less than full reel

. in stock, ready to ship today.

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Typical Application

Works with Skyworks Si3402

Input Voltage	Output	Power	Fsw
36 V — 72 V	24 V , 0.63 A	15 W	250 kHz

Specifications

Electrical specifications at 25°C.

Part number (Hover for schematics)	Inductance at 0A (µH) 1 (Tolerance: ±10%)	Inductance min at 2 A (µH)	DCR max		Leakage Inductance max (µH) 2	Turns Ratio	Isolation Voltage (Vrms) 3
Part number (Hover for schematics)	Inductance at 0A (µH) 1 (Tolerance: ±10%)	Inductance min at 2 A (µH)	Pri (Ω)	Sec (mΩ)	Leakage Inductance max (µH) 2	Pri : Sec	Isolation Voltage (Vrms) 3
JA4641-ALD	40	36	0.100	275.000	0.56	1 : 2	1500

Notes

Inductance is for the primary, measured at 200 kHz, 0.2 Vrms, 0 Adc
Leakage inductance is for the primary, measured with secondary windings shorted together.
1500 Vrms, one minute isolation (hipot) between primary and secondary.

Termination:

RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations Other terminations available at additional cost.

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +85°C

Storage temperature range:

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

Schematics

Connect pin 7 to 8 and pin 9 to 10 on the PC board.

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
175	330	100	13	38,4	32,4	32	28	4	2	13,4	0,60

General specification

Core Material:

Ferrite

Weight:

6.79 g

Packaging:

175 per 13″ reel Plastic tape: 32 mm wide, 0.6 mm thick, 28 mm pocket spacing, 13.4 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.

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JA4641 Flyback Transformer

for Silicon Laboratories Si3402 PD Controller

Selected configuration not available

Typical Application

Specifications

Termination:

Packaging:

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

Warning