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Close up of YA916x
Datasheet

No-Opto Flyback Transformers

RoHS compliant halogen free
  • Discontinuous conduction mode Flyback transformers
  • Optimized for 125 – 150 kHz with 8 – 28 V or 18 – 60 V input
  • 1500 Vrms, one minute isolation between primary and secondary

Buy Now:
Find my part
Count Unit price
1 $3.92
200 $3.50
400 $2.52
1600 $1.97
2600 $1.69
5000 $1.54

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

. in stock, ready to ship today.
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Typical Application

Works with flyback applications

Part number Input Voltage Output Power Fsw
YA9165-BED 8 V — 28 V 5 V , 2.4 A 12 W 150 kHz
YA9166-BED 8 V — 28 V 12 V , 1 A 12 W 150 kHz
YA9167-BED 8 V — 28 V 24 V , 0.5 A 12 W 150 kHz
YA9168-BED 18 V — 60 V 5 V , 2.4 A 12 W 150 kHz
YA9169-BED 18 V — 60 V 12 V , 1 A 12 W 150 kHz
YA9170-BED 18 V — 60 V 24 V , 0.5 A 12 W 150 kHz

Specifications

Electrical specifications at 25°C.

Part number
(Hover for schematics)
Inductance
at 0A (µH) 1
(Tolerance: ±10%) 		Isat (A) 2 DCR max (Ω) Leakage
Inductance
max (µH) 3 		Turns Ratio Isolation
Voltage (Vrms) 4
Pri Sec Pri : Sec
YA9165-BED 4.0 13.0 0.0156 0.0144 0.15 1 : 0.7 1500
YA9166-BED 4.0 13.0 0.0156 0.0598 0.12 1 : 1.6 1500
YA9167-BED 4.0 13.0 0.0156 0.1900 0.12 1 : 3.14 1500
YA9168-BED 20.0 4.7 0.0360 0.0120 0.40 1 : 0.31 1500
YA9169-BED 20.0 4.7 0.0380 0.0540 0.28 1 : 0.71 1500
YA9170-BED 20.0 4.7 0.0360 0.1950 0.28 1 : 1.39 1500
Notes
  1. Inductance is for the primary, measured at 150 kHz, 0.1 Vrms, 0 Adc.
  2. Isat: DC current that causes the primary inductance drop of 30% (typ) from its value without current.
  3. Leakage inductance is for the primary winding with the secondary windings shorted.
  4. Isolation (hipot) measured between windings for one minute.

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. 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 +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):
See FIT/MTBF Calculations

Performance curves

L vs. Current

L vs. Current
YA9165, YA9166, YA9167

L vs. Current

L vs. Current
YA9168, YA9169, YA9170

Schematics

YA9165, YA9166, YA9167, YA9170*

ya9165s.gif
*Connect pin 1 to 2 and pin 3 to 4 on the PC board
 

YA9168, YA9169**

ya9168s.gif
**Connect pin 1 to 2, 3 to 4, 5 to 6, and pin 7 to 8 on the PC board

Physical characteristics

ya9165d.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
200 330 100 13 38,4 32,4 32 24 4 2 12,0 0,5

General specification

Core Material:
Ferrite
Weight:
4.27 – 4.60 g
Packaging:
200/13″ reel Plastic tape: 32 mm wide, 0.50 mm thick, 24 mm pocket spacing, 12 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.