ZB1021 Flyback Transformer

for Maxim MAXIM17691A evaluation kit

Design application for MAXIM17691A evaluation kit
Discontinuous conduction mode flyback transformer
Designed to operate at 150 kHz with 17 – 36 V input
1500 Vrms, one minute isolation (hipot) between primary and secondary

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Count	Unit price
1	$5.05
200	$4.05
600	$2.43
1200	$1.90
2400	$1.64
4800	$1.50

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

Packaging

D = 13" machine-ready reel

. in stock, ready to ship today.

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Typical Application

Works with Maxim MAXIM17691A

Input Voltage	Output		Power	Fsw
Input Voltage	Sec	Aux	Power	Fsw
36 V	5 V , 1.5 A	8 V , 0.01 A	7.5 W	150 kHz

Specifications

Electrical specifications at 25°C.

Part number (Hover for schematics)	Inductance at 0A (µH) 1 (Tolerance: ±10%)	Isat (A) 2	DCR max (Ω)			Leakage Inductance max (µH) 3	Turns Ratio	Isolation Voltage (Vrms) 4
Part number (Hover for schematics)	Inductance at 0A (µH) 1 (Tolerance: ±10%)	Isat (A) 2	Pri	Sec	Aux	Leakage Inductance max (µH) 3	Pri : Sec : Aux	Isolation Voltage (Vrms) 4
ZB1021-ALD	22	3.4	0.068	0.018	0.288	0.25	1 : 0.33 : 0.5	1500

Notes

Inductance is for the primary, measured at 150 kHz, 0.1 Vrms, 0 Adc.
DC current that causes an inductance drop of 30% (typ) from its value without current
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. RoHS tin-silver-copper over tin over nickel over phos bronze. Other terminations available at additional cost.

Packaging:

D = 13″ machine-ready reel. EIA-481 embossed plastic tape (200 parts per 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

Maximum part temperature:

+125°C (ambient + temperature rise)

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

See FIT/MTBF Calculations

Schematics

Connect pin 5 to 6 and pin 7 to 8 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
200	330	100	13	38,4	32,4	32	24	4	2	11,2	0,5

General specification

Core Material:

Ferrite

Weight:

3.85 g

Packaging:

200 per reel, 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 24 mm pocket spacing, 11.2 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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ZB1021 Flyback Transformer

for Maxim MAXIM17691A evaluation kit

Selected configuration not available

Typical Application

Specifications

Termination:

Packaging:

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

Warning