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Q3903-AL

Toroidal Transformer

RoHS compliant
  • Specified by ON Semiconductor for use with their NCP1605 PFC Controller.
    Referenced as X25, pulse transformer on evaluation board NCP1605FORWGEVB and Application Note AND8292.
  • Recommended by Texas Instruments for use with their UC3875 Phase Shift Resonant Controller.
  • Three 1 : 1 windings
  • Custom versions available
Buy Now:
Count Unit price
1 $9.73
250 $8.68
500 $7.24
1000 $6.03
2500 $5.25
5000 $4.56

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

. in stock, ready to ship today.
Request a Sample:

Specifications

Electrical specifications at 25°C.

Part number Inductance
at 0A (µH) 1
DCR max (mΩ) 2 Isolation
Voltage (Vrms)
Q3903-AL 210 90.0 500
Notes
  1. Inductance measured between pins 1 and 6, at 15.75 kHz, 0.015 Vrms, 0 Adc using an Agilent/HP 4192A impedance analyzer or equivalent.
  2. DCR is per winding, measured at 25°C on a Cambridge Technology microohmmeter or equivalent. For other operating temperatures, use this DCR at Temperature calculator.

Termination:

  • RoHS compliant tin-silver over tin over nickel over brass. Other terminations available at additional cost.
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
−40°C to +85°C
Storage temperature range:
Component: −40°C to +85°C
Packaging trays: −40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Schematics

q3903s.gif

Physical characteristics

q3903d.gif

dims_inches_mm.gif

General specification

Core Material:
Ferrite
Weight:
4.3 g
Packaging:
49 per tray

Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
PCB Washing:
Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf