Document 1532-1
No-Opto Flyback Transformers
Halogen
Free
• Discontinuous conduction mode Flyback transformers
• Optimized for 100 – 125 kHz with 8 – 28 V or 18 – 60 V input
• 1500Vrms, one minuteisolationbetweenprimary and secondary
Core material Ferrite
Terminations RoHS tin-silver-copper over tin over nickel over phos
bronze. 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 additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Inductance
at 0 A2
±±0ꢀ (µH)
Leakage
inductance
max (µH)4
DCR max (Ohms)
Turns ratio
pri : sec
Part
Isat3
(A)
Isolation Power
number1
pri
sec
(Vrms)
(W)
Output
8 – 28 V inputt
YA9±7±-CED
YA9±72-CED
YA9±73-CED
1.5
1.5
1.5
24
24
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
24
24
24
5 V, 4.8 A
12 V, 2 A
24 V, 1 A
±8 – 60 V inputt
YA9±74-CED
YA9±75-CED
YA9±76-CED
8.5
8.5
8.5
10
10
10
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
24
24
24
5 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 reel
available: in tape (not machine ready) or with leader
and trailer ($25 charge).
Schematics
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.
YA9172, YA9173,
YA9175, YA9176
YA9171, YA9174
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
*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 PC
board
Document 1532 Revised 06/14/22
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
© Coilcraft Inc. 2022
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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