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

Datasheet 3D Model

ZB1347

Isolated Buck Transformer

Engineered for high-frequency performance, the ZB1347-AE isolated buck transformer operates efficiently from 300 – 750 kHz with a 5 V input, delivering stable, low-noise power conversion for demanding systems. Its rugged magnetic construction ensures reliable isolated power for telecom servers, service robots, energy-storage systems, and other industrial applications. Fully AEC-Q200 qualified, it meets the reliability requirements for automotive and mission-critical designs. In addition to iso-buck operation, the design also supports Flyback topologies, providing flexibility for compact, high-efficiency power stages.

Designed for bidirectional disconnect board EVAL_BDPS_DD_TOLL from Infineon
Optimized for 300 – 750 kHz with 5 V input
Suitable for telecom servers, service robots, energy storage and similar industrial applications
AEC-Q200 qualified
Versatile design also provides for use in Flyback topologies

Typical Application

Works with Infineon EVAL_BDPS_ DD_TOLL

Input Voltage	Output 1	Power	Fsw
5 V	12 V , 0.2 A	2.4 W	500 MHz

Specifications

Electrical specifications at 25°C.

Transformer

Part number 2 (Hover for schematics)	Inductance at 0A (µH) 3 (Tolerance: ±10%)	Isat (A) 4	DCR max			Leakage Inductance max (µH) 5	Turns Ratio	Isolation Voltage (Vrms) 6
Part number 2 (Hover for schematics)	Inductance at 0A (µH) 3 (Tolerance: ±10%)	Isat (A) 4	Pri (Ω)	Sec1 (Ω)	Sec2 (Ω)	Leakage Inductance max (µH) 5	Pri : Sec1 : Sec2	Isolation Voltage (Vrms) 6
ZB1347-AED	135	1.5	0.268	3.6	2.9	0.60	1 : 2 : 2	1500

Notes

12 V, 0.2 A output is for secondary 1 and secondary 2 windings.
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).
Inductance is for the primary, measured at 500 kHz, 0.1 Vrms, 0 Adc.
DC current that causes the primary inductance drop 30% from its value without current.
Leakage Inductance is for the primary, measured with secondary windings shorted together.
1500 Vrms, one minute isolation (hipot) from primary to secondary.

Termination:

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 , halogen free

Ambient temperature range:

−40°C to +125°C

Storage temperature range:

Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C

Maximum part temperature:

+165°C (ambient + temp rise)

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

See FIT/MTBF Calculations

Performance curves

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
200		330	100	13	38,4	32,4	32	24	4	2	11,2	0,5

General specification

Core Material:

Ferrite

Weight:

4.0 − 4.3 g

Packaging:

200/13″ 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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ZB1347

Isolated Buck Transformer

Typical Application

Specifications

Transformer

Termination:

Packaging:

Performance curves

Schematics

Physical characteristics

Tape and Reel specification

General specification

Soldering/Washing

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