EPC3248G-X_11 [PCA]
Power over Ethernet (PoE/PD) Flyback Transformer; 以太网供电（ POE / PD ）反激式变压器
| 型号： | EPC3248G-X_11 |
| 厂家： | 
PCA ELECTRONICS INC. |
| 描述： | Power over Ethernet (PoE/PD) Flyback Transformer |
| 文件： | 总2页 (文件大小：147K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Power over Ethernet (PoE/PD)
Flyback Transformer
E L E C T R O N I C S I N C .
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
PoE
Class
PD
Class
Usage
Voltage
Current
Primary OCL
Le
Package Schematic
Type
Power
(Watts)
(Vdc)
(Amp.)
(µH ± 10%) (µH Max.)
@ 300 KHz, @ 300 KHz,
Fb
Fb
0.1 Vrms
0.1 Vrms
Min.
Max.
V Out Bias V Out Bias
EPC3248G-1
EPC3248G-2
EPC3248G-3
EPC3248G-4
EPC3248G-5
EPC3248G-6
EPC3248G-7
EPC3248G-8
EPC3248G-9
EPC3248G-10 DPA424/5
EPC3248G-11 DPA424/5
EPC3248G-12 DPA424/5
EPC3248G-13
EPC3248G-14
EPC3248G-15
DPA425
DPA425
DPA425
DPA423
DPA423
DPA423
DPA424
DPA424
DPA424
0
0.44 12.95
0.44 12.95
0.44 12.95
Default
Default
3.3
13.2
3.92
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
120
120
120
200
200
200
120
120
120
120
120
120
25
2.5
2.5
2.5
2.5
2.5
2.5
3.5
3.5
3.5
2.5
2.5
2.5
4.0
4.0
4.0
ER14.5
ER14.5
ER14.5
ER9.5
ER9.5
ER9.5
ER11
1
1
1
2
2
2
1
1
1
1
1
1
3
3
3
0
5.0 13.33 2.59
0
Default
12.0 12.0
3.3 13.2
1.08
1.16
1
0.44
0.44
0.44
3.84
3.84
3.84
3.84
3.84
3.84
6.49
6.49
6.49
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Reserved
Reserved
Reserved
1
5.0 13.33 0.77
1
12.0 12.0
0.32
1.97
1.30
0.54
3.92
2.59
1.08
2
3.3
5.0
13.2
13.0
2
ER11
2
12.0 12.0
ER11
3
6.49 12.95
6.49 12.95
6.49 12.95
Reserved
Reserved
Reserved
3.3
5.0
13.2
13.2
ER14.5
ER14.5
ER14.5
EFD20
EFD20
EFD20
3
3
12.0 12.0
DPA426
DPA426
DPA426
4(PoE+)
4(PoE+)
4(PoE+)
3.3
5.0
13.2 12.12 0.05
13.2
8.0
3.33
0.05
0.05
25
12.0 12.0
25
•
Isolation : Pri., Bias to Sec. ; 1500 Vrms • Isolation : Pri. to Bias ; 500 Vrms •
EPC3248-X
EPC3248-X-LF
Notes :
Hot Dipped Sn or SnCu
1. Lead Finish
SnPb
2. Peak Solder Rating
225°C
1
260°C
1
3. Moisture Sensitive Levels (MSL)
(Unlimited, £30°C/60%RH) (Unlimited, £30°C/60%RH)
Schematic 1
Schematic 2
Schematic 3
1
12
11
1
2
3
4
5
1
10
8
V In
(Pins 1-3)
V In
V In
2
3
5
6
(Pins 1-3)
(Pins 1-3)
10
9
7
7
6
2
3
V Out
V Out
V Out
9
8
7
Fb/Bias
Fb/Bias
Fb/Bias
4
6
5
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3248G-X & -LFa Rev. 5 8-15-11 FT
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
Power Over Ethernet (PoE/PD)
Flyback Transformer
E L E C T R O N I C S I N C .
EPC3248G-X & EPC3248G-X-LF
Package ER9.5
Package ER11
0.417
0.457
0.063
(1.60)
0.079
(2.00)
Max.
0.063
(1.60)
0.079
(2.00)
Max.
(10.60)
(11.60)
8
1
5
4
10
1
6
5
PCA
EPC3248G-X
D.C.
0.495
0.319
(8.10)
Solder Pad
Layout
(12.57)
PCA
EPC3248G-X
D.C.
0.362
(9.20)
0.520
Solder Pad
Layout
(13.20)
0.236
(6.00)
0.063
(1.60)
0.315
(8.00)
0.063
(1.60)
0.006
(0.150)
0.010
(0.254)
0.008
(0.200)
0°-8°
0.010
(0.254)
0.235 Max.
(6.00)
0.244 Max.
(6.20)
0°-8°
0.029
0.079
(2.00)
0.028
(0.700)
(0.725)
0.024
0.028
(0.700)
0.079
(2.00)
(0.600)
0.455
(11.55)
0.480
(12.20)
Tube: 52 pcs/tube
Tube: 44 pcs/tube
Packaging Information
Packaging Information
T/R: 600 pcs/13” reel
T/R: 400 pcs/13” reel
Package ER14.5
Package EFD20
(Reserved for Class 4 PoE+)
0.067
(1.70)
0.610
(15.50)
0.098
(2.50)
0.854 Max.
(21.70)
0.028
(0.700)
6
10
1
6
12
7
PCA
Solder Pad
Layout
0.670
0.118
(3.00)
EPC3248G-X
Date Code
0.591
0.835 Max.
(21.20)
(17.02)
(15.00)
1
5
0.394
(10.00)
0.067
(1.70)
Marking :
PCA
EPC3248G-X
D.C.
0.014 Max.
(0.350)
0.016
(0.400)
0.425 Max.
(10.80)
0.012
(0.305)
0°-8°
0.295
(7.50)
0°-8°
0.080
(2.03)
0.028
(0.700)
0.010
(0.250)
1.055
(26.80)
0.630
(16.00)
0.028
(0.700)
0.098
(2.50)
0.138
(3.50)
0.118
(3.00)
Tube: 36 pcs/tube
Solder Pad
Layout
Packaging Information
T/R: 350 pcs/13” reel
1.095
(27.82)
Packaging Information
Tray: 40 pcs/tray
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSC3248G-X & -LFb Rev. 5 8/15/11 FT
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
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