PCA EPC3248G-2 Power over ethernet (poe/pd) flyback transformer Datasheet

Power over Ethernet (PoE/PD)
Flyback Transformer
ELECTRONICS INC.
EPC3248G-X & EPC3248G-X-LF
• Used in SMPS DC/DC Converter as a Flyback
Transformer in PoE/Powered Devices (PD)
• Switching Frequency : 300 KHz to 400 KHz
• Add “-LF” after part number for Lead Free
• Input Voltage : 36-57 VDC
• 40 % Duty Cycle Typ. @ 48 VDC Input Voltage
• UL 94V-0 Recognized Materials
• UL 1446 Class B Insulation System
• Storage Temperature : -40°C to +125°C
• Operating Temperature : -40°C to +85°C
Electrical Specifications @ 25°C
Part
Number
Chipset
EPC3248G-1
EPC3248G-2
EPC3248G-3
EPC3248G-4
EPC3248G-5
EPC3248G-6
EPC3248G-7
EPC3248G-8
EPC3248G-9
EPC3248G-10
EPC3248G-11
EPC3248G-12
EPC3248G-13
EPC3248G-14
EPC3248G-15
DPA425
DPA425
DPA425
DPA423
DPA423
DPA423
DPA424
DPA424
DPA424
DPA424/5
DPA424/5
DPA424/5
DPA426
DPA426
DPA426
PoE
Class
PD
Class
Voltage
Current
Primary OCL
Le
Power
Usage
(Vdc)
(Amp.)
(µH ± 10%) (µH Max.)
(Watts)
@ 300 KHz, @ 300 KHz,
Fb
Fb
0.1 Vrms
0.1 Vrms
Min.
Max.
V Out Bias V Out Bias
0
0.44 12.95
Default
3.3
13.2
3.92
0.05
120
2.5
0
0.44 12.95
Default
5.0 13.33 2.59
0.05
120
2.5
0
0.44 12.95
Default
12.0 12.0
1.08
0.05
120
2.5
1
0.44
3.84
Optional
3.3
13.2
1.16
0.05
200
2.5
1
0.44
3.84
Optional
5.0 13.33 0.77
0.05
200
2.5
1
0.44
3.84
Optional
12.0 12.0
0.32
0.05
200
2.5
2
3.84
6.49
Optional
3.3
13.2
1.97
0.05
120
3.5
2
3.84
6.49
Optional
5.0
13.0
1.30
0.05
120
3.5
2
3.84
6.49
Optional
12.0 12.0
0.54
0.05
120
3.5
3
6.49 12.95
Optional
3.3
13.2
3.92
0.05
120
2.5
3
6.49 12.95
Optional
5.0
13.2
2.59
0.05
120
2.5
3
6.49 12.95
Optional
12.0 12.0
1.08
0.05
120
2.5
4(PoE+)
Reserved
3.3
13.2 12.12 0.05
25
4.0
Reserved
4(PoE+)
Reserved
5.0
13.2
8.0
0.05
25
4.0
Reserved
4(PoE+)
Reserved
12.0 12.0
3.33
0.05
25
4.0
Reserved
• Isolation : Pri., Bias to Sec. ; 1500 Vrms • Isolation : Pri. to Bias ; 500 Vrms •
EPC3248-X
EPC3248-X-LF
1. Lead Finish
SnPb
Hot Dipped Sn or SnCu
2. Peak Solder Rating
225°C
260°C
1
(Unlimited, ≤30°C/60%RH)
1
(Unlimited, ≤30°C/60%RH)
Notes :
3. Moisture Sensitive Levels (MSL)
Schematic 1
Schematic 2
1
10
V In
(Pins 1-3)
9
3
Fb/Bias
1
8
2
7
V In
(Pins 1-3) 2
3
6
6
4
5
12
11
10
V Out
9
Fb/Bias
4
1
1
1
2
2
2
1
1
1
1
1
1
3
3
3
3
V Out
V Out
7
ER14.5
ER14.5
ER14.5
ER9.5
ER9.5
ER9.5
ER11
ER11
ER11
ER14.5
ER14.5
ER14.5
EFD20
EFD20
EFD20
Schematic 3
1
V In
(Pins 1-3) 2
Package Schematic
Type
5
Fb/Bias
5
6
8
7
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3248G-X & -LFa
Rev. 5
8-15-11 FT
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
Power Over Ethernet (PoE/PD)
Flyback Transformer
ELECTRONICS INC.
EPC3248G-X & EPC3248G-X-LF
Package ER9.5
0.417
Max.
(10.60)
8
Package ER11
0.457
Max.
(11.60)
0.063
(1.60)
0.079
(2.00)
5
0.319
(8.10)
PCA
EPC3248G-X
D.C.
1
10
0.495 Solder Pad
(12.57) Layout
0.236
(6.00)
0.063
(1.60)
0.006
(0.150)
0.235 Max.
(6.00)
1
0.010
(0.254)
0.520 Solder Pad
(13.20) Layout
5
0.063
(1.60)
0.008
(0.200)
0.244 Max.
(6.20)
0.029
(0.725)
0.455
(11.55)
Packaging Information
0.362
(9.20)
0.315
(8.00)
0°-8°
0.079
(2.00)
0.028
(0.700)
6
PCA
EPC3248G-X
D.C.
4
0.028
(0.700)
0.024
(0.600)
0.480
(12.20)
Packaging Information
T/R: 600 pcs/13” reel
Package EFD20
(Reserved for Class 4 PoE+)
0.067
(1.70)
0.098
(2.50)
0.854 Max.
(21.70)
6
10
1
PCA
EPC3248G-X
Date Code
1
0.670 Solder Pad
(17.02) Layout
0.028
(0.700)
0.028
(0.700)
12
0.118
0.591 (3.00)
(15.00)
0.835 Max.
(21.20)
5
0.394
(10.00)
0.295
(7.50)
Tube: 44 pcs/tube
T/R: 400 pcs/13” reel
Package ER14.5
0.610
(15.50)
0.010
(0.254)
0°-8°
0.079
(2.00)
Tube: 52 pcs/tube
0.063
(1.60)
0.079
(2.00)
6
0.067
(1.70)
0.014 Max.
(0.350)
Marking :
PCA
EPC3248G-X
D.C.
0°-8°
0.012
(0.305)
0°-8°
0.016 0.425 Max.
(0.400)
(10.80)
0.080
(2.03)
0.028
(0.700)
0.630
(16.00)
0.098
(2.50)
7
0.010
(0.250)
1.055
(26.80)
0.138
(3.50)
Packaging Information
0.118
(3.00)
Tube: 36 pcs/tube
T/R: 350 pcs/13” reel
Solder Pad
Layout
1.095
(27.82)
Packaging Information
Tray: 40 pcs/tray
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3248G-X & -LFb
Rev. 5
8/15/11 FT
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
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