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No-Opto Flyback Transformers

RoHS compliant
  • Three output versions optimized for Texas Instruments LM5180 and LM5180-Q1 Flyback Converters, Analog Device LT830x Flyback Converter and similar ICs
  • Output versions: YA8864-BL, YA8916-BL, YA8779-BL
Buy Now:
Count Unit price
1 $2.85
300 $2.28
600 $1.98
1200 $1.73
3000 $1.48
6000 $1.36

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

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

Typical Application

Works with Texas Instruments LM5180-Q1

Part number Input Voltage Output Power Fsw
Sec1 Sec2
YA8864-BL_ 4.5 V 70 V 20 V , 0.1 A 5 V , 0.3 A 3.5 W 350 kHz
YA8916-BL_ 4.5 V 70 V 15 V , 0.2 A 8 V , 0.2 A 4.6 W 350 kHz
YA8779-BL_ 4.5 V 70 V 5 V , 1.2 A - 6 W 350 kHz

Specifications

Electrical specifications at 25°C.

Part number Inductance
at 0A (µH) 1
(Tolerance: ±10%)
Inductance
min at   2 A (µH) 2
DCR max (Ω) 3 Leakage
Inductance
max (µH) 4
Turns Ratio Isolation
Voltage (Vrms) 5
Pri Sec1 Sec2 Pri : Sec1 : Sec2
YA8864-BL_ 30 27 0.180 0.680 0.180 0.295 1 : 1.5 : 0.4 1500
YA8916-BL_ 30 27 0.360 0.695 0.392 0.565 1 : 1 : 0.52 1500
YA8779-BL_ 30 24 0.140 0.013 - 0.380 1 : 0.33 : - 1500
Notes
  1. Inductance is for the primary, measured at 300 kHz, 0.1 Vrms, 0 Adc.
  2. Minimum inductance is for the primary, measured at 300 KHz, 0.1 Vrms, 2 Adc.
  3. Sec1 DCR for YA8779 is with windings connected in parallel.
  4. Leakage Inductance is for the primary, measured with secondary windings shorted together.
  5. 1500 Vrms, one minute isolation (hipot) between primary and secondary.

Termination:

  • RoHS-compliant. 260°C compatible. 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. 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):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Schematics

YA8779*

ya8779s.gif
*Connect pin 5 to 6 and pin 7 to 8 on the PC board
 

YA8864

ya8864s.gif
 

YA8916

ya8916s.gif

 

Physical characteristics

ya8779d.gif
dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif

 
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_c.gif
300 330 100 13 38,4 32,4 32 20 4 2 10,69 0,42

General specification

Core Material:
Ferrite
Weight:
2.05 – 2.15 g
Packaging:
300/13″ reel Plastic tape: 32 mm wide, 0.42 mm thick, 20 mm pocket spacing, 10.69 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.