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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

ZB1021 Flyback Transformer

for Maxim MAXIM17691A evaluation kit

RoHS compliant
  • 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

Buy Now:
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.

. in stock, ready to ship today.
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Typical Application

Works with Maxim MAXIM17691A

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


Electrical specifications at 25°C.

Part number
(Hover for schematics)
at 0A (µH) 1
(Tolerance: ±10%)
Isat (A) 2 DCR max (Ω) Leakage
max (µH) 3
Turns Ratio Isolation
Voltage (Vrms) 4
Pri Sec Aux Pri : Sec : Aux
ZB1021-ALD 22 3.4 0.068 0.018 0.288 0.25 1 : 0.33 : 0.5 1500
  1. Inductance is for the primary, measured at 150 kHz, 0.1 Vrms, 0 Adc.
  2. DC current that causes an inductance drop of 30% (typ) from its value without current
  3. Leakage Inductance is for the primary, measured with secondary windings shorted together.
  4. 1500 Vrms, one minute isolation (hipot) between primary and secondary.


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


  • 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).
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):



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

General specification

Core Material:
3.85 g
200 per reel, 13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 24 mm pocket spacing, 11.2 mm pocket depth


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.