Document 1532-1

No-Opto Flyback Transformers
HalogenFree• Discontinuous conduction mode Flyback transformers• Optimized for 100 – 125 kHz with 8 – 28 V or 18 – 60 V input• 1500 Vrms, one minute isolation between primary and secondary

AEC

Q200 +85°C

Core material Ferrite
Terminations RoHS tin-silver-copper over tin over nickel over phosbronze. Other terminations available at additional cost.
Weight 6.17 – 6.23 g
Ambient temperature –40°C to +85°C
Max Part Temperature +125°C (ambient + temperature rise)
Storage temperature Component: –40°C to +125°C
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /85% relative humidity)
PCB washing Tested to MIL-STD-202 Method 215 plus an additionalaqueous wash. See Doc787_PCB_Washing.pdf.		
Inductance				DCR max (Ohms)
Part	 at 0 A2
Isat3
number1±10% (µH)(A)
pri   sec

Leakageinductancemax (µH)4Turns ratio
pri : sec

Isolation(Vrms)

Power(W)

Output

8 – 28 V inputt
YA9171-CED
YA9172-CED
YA9173-CED

1.5
1.5
1.5

2424
24

0.009
0.009
0.009

0.014
0.062
0.193

0.082
0.068
0.092

1 : 1.00
1 : 2.28
1 : 4.43

1500
1500
1500

2424
245 V, 4.8 A
12 V, 2 A
24 V, 1 A

18 – 60 V inputt
YA9174-CED
YA9175-CED
YA9176-CED

8.5
8.5
8.5

101010

0.036
0.036
0.036

0.012
0.053
0.158

0.277
0.300
0.197

1 : 0.38
1 : 0.92
1 : 1.77

1500
1500
1500

2424
245 V, 4.8 A
12 V, 2 A
24 V, 1 A

1. Packaging:D = 13″ machine-ready reel. EIA-481 embossed plastic tape(175 parts per full reel).Quantities less than full reelavailable: in tape (not machine ready) or with leader
and trailer ($25 charge).
2. Inductance is for the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc.
3. Minimum inductance for the primary, measured at 125 kHz, 0.1 Vrms.
4. Leakage Inductance is for the primary, measured with secondary
windings shorted together.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

Schematics
YA9172, YA9173,
YA9175, YA9176

YA9171, YA9174*Connect pin 1 to 2 and pin
4 to 5 on the PC board*Connect pin 1 to 2, 4 to 5, 6
to 7, and pin 9 to 10 on the PCboard

US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

Document 1532

Revised 06/14/22© Coilcraft Inc. 2022
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.

Document 1532-2

No-opto Flyback Transformers
L vs Current
HalogenFree

AEC

Q200 +85°C

Dimensions

Dimensions are ininches
mmPackaging 175/13″ reel Plastic tape: 32 mm wide, 0.60 mm thick,
28 mm pocket spacing, 13.4 mm pocket depth

US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.twChina +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg

Document 1532-2

Revised 06/14/22© Coilcraft Inc. 2022
This product may not be used in medical or highrisk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.