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JA4429 Flyback Transformer

for Linear Technology LT3799

RoHS compliant
  • Developed for Linear Technology for use with the LT3799 Isolated LED Controller with active power factor correction
  • Mounted on LT3799 Demo Board
  • Universal input; 24 Watt output
Buy Now:
Count Unit price
1 $6.75
250 $5.04
500 $3.02
1000 $2.55
2500 $2.30
5000 $2.10

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

. in stock, ready to ship today.
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Typical Application

Works with ADIPowerbyLinear LT3799

AC Input Voltage Output 1 Power Fsw
Sec Bias
85 V 265 V 24 V , 1 A 24 V , 0.02 A 24 W 100 kHz

Specifications

Part number Inductance
at 0A (µH) 2
(Tolerance: ±10%)
Inductance
min at   1.3 A (µH)
DCR max (Ω) 3 Leakage
Inductance
max (µH) 4
Turns Ratio Isolation
Voltage (Vrms) 5
Pri Sec Bias Pri : Sec : Bias
JA4429-AL 400 320 0.252 0.126 0.149 7.5 1 : 0.24 : 0.24 3000
Notes
  1. Output is for the secondary. Bias winding output is 24 V, 20 mA.
  2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/ HP 4263B impedance analyzer or equivalent.
  3. DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
  4. Leakage inductance is for the primary and is measured with the secondary shorted.
  5. Isolation: 3000 Vrms, one minute primary to secondary; 500 Vrms primary to bias, tested for one minute

Termination:

  • RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations. 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.
Tray packaging: –40°C to +80°C
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

ja4429s.gif

Physical characteristics

ja4429d.gif


dims_inches_mm-(6).gif

General specification

Core Material:
Ferrite
Weight:
13.9 g
Packaging:
100 per tray

Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
PCB Washing:
Only pure water or alcohol recommended