These parts are preproduction products for electrical evaluation only.
Specification subject to change without notice.
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest information.
Flyback Transformers
Document 788
Document 788 Revised 03/31/11
Inductance Inductance Leakage
Part Power
at 0 A2 at Ipk3
DCR max (Ohms)4 inductance
5
Turns ratio6 Ipk3
number1 (W) ±10% (µH) min (µH) pri sec bias max (µH) pri : sec pri : bias (A) Output7
HA3691-AL_ 20 100 90.0 0.185 0.0085 0.340 0.805 1 : 0.25 1 : 0.469 1.3 5 V, 4 A
JA4173-AL_ 20 100 90.0 0.211 0.0060 0.404 1.60 1 : 0.156 1 : 0.50 1.3 3.3 V, 6 A
1. When ordering, please specify packaging code:
HA3691-ALD
Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts
per full reel).
B = Less than full reel. In tape, but not machine ready. To have a leader
and trailer added ($25 charge), use code letter D instead.
2. Inductance measured at 250 kHz, 0.2 Vrms, 0 Adc.
3. Peak primary current drawn at minimum input voltage.
4. DCR for the secondary is with windings connected in parallel.
5. Leakage inductance is for the primary and is measured with the secondary shorted.
6. Turns ratio is with the secondary windings connected in parallel.
7. Output of the secondary is with the windings connected in parallel. Bias winding output
is 10 V, 20 mA.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Secondary windings to be connected
in parallel on PC board
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos bronze.
Other terminations available at additional cost.
Weight 6.5 g
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 175 per 13″ reel Plastic tape: 32 mm wide,
0.5 mm thick, 28 mm pocket spacing, 12.93 mm pocket depth
PCB washing Only pure water or alcohol recommended
• Designed to operate at 250 kHz in continuous conduction
mode with 42 – 57 Volts input
• 1500 Vrms, one minute isolation from the primary and bias
windings to the secondary windings
For STMicroelectronics PM8803
PoE Plus Powered Device Controller
Dimensions are in inches
mm
0.500
12,70
0.530
13,46
0.039
1,00
0.512
13,00
0.699
17,75 max
0.028
0,70
0.098
2,50
max
max
56
110
0.004 /0,10
Dot above pin1
0.080
2,03
1
0.590
14,99
0.050
1,27
0.098
2,50
Recommended
Land Pattern
