Power over Ethernet (PoE/PD) Powered Device Flyback Transformer Used in SMPS DC/DC Converter as a Flyback Transformer in PoE/Powered Devices (PD) • Switching Frequency: 300 KHz to 400 KHz • 40% Duty Cycle Typ. @ 48 V Input • UL 94V-0 Recognized Components • UL 1446 Class B Insulation System • Low Core Loss Material • Add ?-LF? after part number for Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3248G-1 (-LF)
Flyback-PoE
ER14.5
1.000 : 0.100 : 0.400
0.0
120
36-57V
13.2V / 0.05A
3.3V / 3.92A
0
Power Integrations
DPA425
EPC3248G-10 (-LF)
Flyback-PoE
ER14.5
1.000 : 0.100 : 0.400
0.0
120
36-57V
13.2V / 0.05A
3.3V / 3.92A
0
Power Integrations
DPA424/5
EPC3248G-14 (-LF)
Flyback-PoE
EFD20
1.000 : 0.100 : 0.400
0.0
25
36-57V
13.2V / 0.05A
5.0V / 8.0A
0
Power Integrations
DPA426
EPC3248G-15 (-LF)
Flyback-PoE
EFD20
1.000 : 0.150 : 0.150
0.0
25
36-57V
12.0V / 0.05A
12.0V / 3.33A
0
Power Integrations
DPA426
EPC3248G-2 (-LF)
Flyback-PoE
ER14.5
1.000 : 0.150 : 0.400
0.0
120
36-57V
13.33V / 0.05A
5.0V / 2.59A
0
Power Integrations
DPA425
EPC3248G-3 (-LF)
Flyback-PoE
ER14.5
1.000 : 0.400 : 0.400
0.0
120
36-57V
12.0V / 0.05A
12.0V / 1.08A
0
Power Integrations
DPA425
EPC3248G-4 (-LF)
Flyback-PoE
ER9.5
1.000 : 0.100 : 0.400
0.0
200
36-57V
13.2V / 0.05A
3.3V / 1.16A
0
Power Integrations
DPA423
EPC3248G-5 (-LF)
Flyback-PoE
ER9.5
1.000 : 0.150 : 0.400
0.0
200
36-57V
13.33V / 0.05A
5.0V / 0.77A
0
Power Integrations
DPA423
EPC3248G-6 (-LF)
Flyback-PoE
ER9.5
1.000 : 0.371 : 0.371
0.0
200
36-57V
12.0V / 0.05A
12.0V / 0.32A
0
Power Integrations
DPA423
EPC3248G-7 (-LF)
Flyback-PoE
ER11
1.000 : 0.100 : 0.400
0.0
120
36-57V
13.2V / 0.05A
3.3V / 1.97A
0
Power Integrations
DPA424
EPC3248G-8 (-LF)
Flyback-PoE
ER11
1.000 : 0.156 : 0.406
0.0
120
36-57V
13.0V / 0.05A
5.0V / 1.30A
0
Power Integrations
DPA424
EPC3248G-9 (-LF)
Flyback-PoE
ER11
1.000 : 0.367 : 0.367
0.0
120
36-57V
12.0V / 0.05A
12.0V / 0.54A
0
Power Integrations
DPA424
Power over Ethernet Synchronus Flyback Transformer Used in SMPS DC/DC Converter as a Flyback Transformer in PoE/Powered Devices (PD) • Add "-LF" after part number for Lead Free • UL 94V-0 Recognized Components • UL 1446 Class B Insulation System • Switching Frequency : 250 KHz • Low Core Loss Material
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3356G-12-LF
Flyback-PoE
EP13
1.000 : 0.500 : 0.500
13.0
127
36-72V
12
12.0V / 1.08A
250
EPC3356G-3.3-LF
Flyback-PoE
EP13
1.000 : 0.500 : 0.166
13.0
127
36-72V
12
3.3V / 3.0A
250
EPC3356G-5-LF
Flyback-PoE
EP13
1.000 : 0.500 : 0.250
13.0
127
36-72V
12
5.0V / 2.6A
250
Power over Ethernet Flyback Transformer 45W PoE Applications • Designed to work with LT1725 • Used in Flyback Topology Converter • Bobbin: UL94V-0 Recognized Materials • Storage Temperature: -40°C to ±125°C • Operating Temperature: 0C to ±70°C • UL 1446 Class B Insulation System v Duty Cycle: 50% Max • Add "-LF" after part number for Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3391G-LF
Flyback-PoE
EFD20
1.000 : 0.417 : 1.111
45.0
42
36 - 57V
15V / 0.01A
36V / 1.25A
0
Linear Technology
LT1725
Power over Ethernet Flyback Transformer 45W PoE Application • Designed to work with LT1725 • Used in Flyback Topology Converter • Bobbin: UL94V-0 Recognized Materials • UL 1446 Class B Insulation System • Duty Cycle: 50% Max. • Add "-LF" after part number for Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3393G-LF
Flyback-PoE
EFD20
1.000 : 0.417 : 1.000
45.0
42
36 - 57V
15V / 0.01A
36V / 1.25A
200
Linear Technology
LT1725
Power over Ethernet Flyback Transformer 45W PoE Application • Designed to work with LT1725 • Used in Flyback Topology Converter • Bobbin: UL94V-0 Recognized Materials • UL 1446 Class B Insulation System • Add "-LF" after part number for Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3394G-LF
Flyback-PoE
EFD25
1.000 : 0.417 : 1.000
45.0
42
36 - 57V
15V / 0.01A
36V / 1.25A
200
Linear Technology
LT1725
Power over Ethernet Synchronus Flyback Transformer Designed to work with LT42691 Chip • Storage Temperature : -40°C to ±125°C • Operating Temperature : 0°C to ±70°C • Small Size and Cost Effective • Max. Duty Cycle : 42% • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3408G-LF
Flyback-PoE
EP13
1.670 : 1.000 : 0.250 : 0.250
25.0
38
36 - 57V
12V / 0.02A
3.3V / 7
250
Linear Technology
LT4276B,LTC4269-1
Power over Ethernet Synchronus Flyback Transformer Designed to work with LT42691 Chip • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±85°C • Small Size and Cost Effective • Max. Duty Cycle : 42% • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3409G-LF
Flyback-PoE
EP13
2.000 : 1.000 : 0.400 : 0.400
25.0
39
36 - 57V
12V / 0.02A
5V / 5A
250
Linear Technology
LT4276B,LTC4269-1
Power over Ethernet Synchronus Flyback Transformer Designed to work with LT42691 Chip • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±85°C • Small Size and Cost Effective • Max. Duty Cycle : 42% • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3410G-LF
Flyback-PoE
EP13
1.800 : 1.000 : 0.900
25.0
37
36 - 57V
12V / 0.02A
12V / 2A
250
Linear Technology
LT4276B,LTC4269-1
Power over Ethernet (PoE/PD) Flyback Transformer 25W PoE Applications • Designed to work with Linear's LTC4278 • Bobbin : UL94V-0 Recognized Materials • Storage Temperature : -40°C to ±125°C • Operating Temperature : 0°C to ±70°C • Class 130°C Insulation System • Duty Cycle : 62% Max • Switching Frequency : 250kHz • Add "-LF" after part number for Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3472G-LF
Flyback-PoE
EFD20
1.000 : 0.750 : 0.375
25.0
9
9 - 57V
10V / 0.03A
5V / 5A
250
Linear Technology
LTC4278
Power over Ethernet (PoE/PD) Flyback Transformer 25W PoE Applications • Bobbin : UL94V-0 Recognized Materials • Storage Temperature : -40°C to ±125°C • Operating Temperature : 0°C to ±70°C • Class 130°C Insulation System • Duty Cycle : 62% Max. • Switching Frequency : 250kHz • Add "-LF" after part number for Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3479G-LF
Flyback-PoE
EFD20
1.000 : 0.750 : 0.250
25.0
9
9 - 57V
10V / 0.03A
3.3V / 7.5A
250
Linear Technology
LTC4278
25W Power Over Ethernet (PoE/PD) Flyback Transformer 25W PoE Applications • Designed to work with Linear's LTC4278 • Bobbin : UL94V-0 Recognized Materials • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±85°C • Class 130°C Insulation System • Duty Cycle : 62% Max • Switching Frequency : 250kHz • Add "-LF" after part number for Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3492G-LF
Flyback-PoE
EFD20
1.000 : 0.750 : 1.750
24.0
9
10 - 57V
10V / 0.03A
24V / 1A
250
Linear Technology
LTC4278
Power over Ethernet (PoE/PD) Flyback Transformer • Designed to work with Linear's LTC4278 • Bobbin : UL94V-0 Recognized Materials • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±125°C • Class 155°C Insulation System • Duty Cycle : 62% Max. • Switching Frequency : 250kHz • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3508GE-LF
Flyback-PoE
EFD20
1.000 : 0.750 : 0.875
24.0
9
9 - 57V
10V / 0.03A
12V / 2A
250
Linear Technology
LTC4278
Power over Ethernet Synchronus Flyback Transformer Designed to work with Linear Tech. LTC4278 • Bobbin : UL94V-0 Recognized Materials • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±85°C • Class 130° Insulation System • Duty Cycle : 62% Max. • Switching Frequency : 250kHz ? Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3546G-LF
Flyback-PoE
EFD20
1.000 : 0.750 : 3.375
24.0
9
9V - 57V
10V / 0.03A
48V / 0.5A
250
Linear Technology
LTC4278
Power over Ethernet Flyback Transformer Designed to work with LT42691 Chip • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±125°C • Small Size and Cost Effective • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3575G-LF
Flyback-PoE
EP13
7.330 : 2.330 : 1.000
40.0
35
36 - 57V
12V / 0.20A
5V / 8A
0
Linear Technology
LT4269-1
EPC3577G-LF
Forward
EFD20
1.500 : 0.875 : 1.000
90.0
180
33 - 57V
10V / 0.05A
12V / 7.5
200
Linear Technology
LT4276A,LT4295
EPC3577G-LF
Flyback-PoE
EFD20
1.500 : 0.875 : 1.000
90.0
180
33 - 57V
10V / 0.05A
12V / 7.5
200
Linear Technology
LT4276A,LT4295
Power over Ethernet Flyback Transformer PoE Synchronous Forward Transformer • Designed to work with LT4276A • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±125°C • Class 130°C Insulation System • Duty Cycle : 55% Max. • Switching Frequency : 250kHz • Lead free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3586G-LF
Flyback-PoE
EP13
1.800 : 1.000 : 0.400 : 0.400
35.0
26
48 - 57V
12V / 0.01A
5V / 7A
250
Linear Technology
LT4276B,LTC4269-1
25W Power over Ethernet (PoE/PD) Flyback Transformer Designed to Work with Linear's LTC4278 • Bobbin : UL94V-0 Recognized Materials • Storage Temperature : -40°C to ±125°C °Operating Temperature : -40°C to ±125°C • Class 130°C Insulation System • Duty Cycle : 55% Max. • Switching Frequency : 250kHz • Add ?-LF? after part number for Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3601G-LF
Flyback-PoE
EFFD20
1.000 : 1.000 : 1.125
25.0
9
9 - 57V
10V / 0.03A
12V / 2A
250
Linear Technology
LT4276,LT4295,LTC4278
Power over Ethernet Synchronus Flyback Transformer Designed to work with LTC4269-1 and LT4276B • Switching Ipeak: 7A • Operating Temperature: -40°C to ±125°C • Storage Temperature: -40°C to ±85°C • Small Size and Cost Effective • Duty Cycle: 42% Max. • Lead free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3603G-LF
Flyback-PoE
EP13
1.800 : 1.000 : 1.800 : 1.800
25.0
37
40 - 57V
12.5V / 0.01A
24V / 1A
250
Linear Technology
LT4276B,LTC4269-1
96W Power over Ethernet (PoE/PD) Flyback Transformer 25W PoE Applications • Bobbin : UL94V-0 Recognized Materials • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±85°Cv • Class 130°C Insulation System • Switching Frequency : 250kHz • ROHS Compliant • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3625G-LF
Flyback-PoE
EFD25
8.000 : 3.000 : 4.000 : 4.000
96.0
13
40 - 57V
9V / 0.03A
12V / 4A
12V / 4A
250
Linear Technology
LT4295
84W Power over Ethernet (PoE/PD) Flyback Transformer Designed to work with LTC4295 • 84W PoE Applications • Storage Temperature: -40°C to ±125°C • Operating Temperature: -40°C to ±125°Cv • Class 130°C Insulation System • Switching Frequency:250kHz • ROHS Compliant • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3630G-LF
Flyback-PoE
EFD25
8.000 : 8:000 : 3.000
84.0
15
40 - 57V
9V / 0.03A
24V / 3.5A
250
Linear Technology
LT4295
Power Over Ethernet Flyback Transformer Designed to work with LTC4295 • Bobbin : UL94V-0 Recognized Materials • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±125°C • Switching Frequency: 250 KHz • Lead free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3633G-LF
Flyback-PoE
EFD20
1.000 : 0.500 : 0.500
48.0
18
41 - 57V
12V / 0.03A
12V / 4A
250
Linear Technology
LT4295
Power Over Ethernet Synchronus Flyback Transformer Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±85°C • Small Size and Cost Effective
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3634AG-LF
Flyback-PoE
EP13
1.000 : 0.500 : 0.440
36.0
26
42 - 57V
12V / 0.01A
12V / 3A
250
Linear Technology
LT4295
Power over Ethernet Synchronus Flyback Transformer UL 94V-0 Recognized Materials • UL 1446 Class F Insulation System Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±125°C
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3678GE-LF
Flyback-PoE
EFD20
1.000 : 0.104: 0.047 : 0.047
9.9
221
36 - 72V
N/A
1.8V / 2.5A
2.5V / 1.5A
3.3V / 0.05A
200
Linear Technology
LTC4267
PoE Power Transformer UL 94V-0 Recognized Materials • UL 1446 Class F Insulation System • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±125°C
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3680G-LF
Flyback-PoE
EP10
1.000 : 0.208 : 0.083
7.0
253
33 - 57V
8V / 0.02A
3.3V / 2A
200
Linear Technology
LT4267
PoE Power Transformer UL 94V-0 Recognized Materials • UL 1446 Class F Insulation System • Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±125°C
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3681G-LF
Flyback-PoE
EP13
1.000 : 0.208 : 0.083
13.5
127
33 - 57
8V / 0.02A
3.3V / 4A
200
Linear Technology
LT4267
Power over Ethernet Flyback Transformer Storage Temperature : -40°C to ±125°C • Operating Temperature : -40°C to ±125°C • Small Size and Cost Effective • 1.8A Saturation Current • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3683GE-LF
Flyback-PoE
EP7
4.000 : 2.500 : 1.000
11.5
44
36 - 57
12
5.0V / 2.3A
250
Linear Technology
LT4276,LT4295
Power over Ethernet (PoE Forward) Flyback Transformer Designed to work with Maxim MAX5974A • Storage Temperature : -40 °C to ±125 °C • Operating Temperature : -40 °C to ±85 °C • Small Size and Cost Effective •Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3702G-LF
Forward
EP13
3.600 : 2.400 : 1.000
25.0
96
33 - 57V
12V / 0.02A
5V / 5A
N/A
N/A
275
Maxim Integrated
MAX5974A
15W Power Over Ethernet (PoE/PD) Flyback Transformer Designed to work with Linear Technology LT3748 • Storage Temperature : -40 °C to ±125 °C • Operating Temperature : -40 °C to ±125 °C • Small Size and Cost Effective • Switching Frequency: 100 kHz • Ipeak: 8 A • Lead Free
Buy
PDF
PCA Part No.
Topology
Geometry
Turns Ratio
Po
Lp
Vin
Aux
S1
S2
S3
Fsw
Controller
Chipset
Pri : Aux : S1 : S2 : S3
Watts
uH
Min-Max
KHz
MFG
Part No.
EPC3921G-LF
Flyback
EP13
1.500 : 0.500 : 1.000
15.0
9
10- 40V
8V / 0.02A
15V / 1A
N/A
N/A
100
Linear Technology
LT3748
Add to Cart
ISO9001:2015 REGISTERED
ISO9001:2015 certifications in all of our global sales and manufacturing facilities.
CAREER OPPORTUNITIES
PCA® has a career opening for a Power Products/Sales Engineer.