C1048-AL [COILCRAFT]
SMT Power Transformer; SMT电力变压器
| 型号： | C1048-AL |
| 厂家： | 
Coilcraft lnc. |
| 描述： | SMT Power Transformer |
| 文件： | 总1页 (文件大小：174K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Document 452
For Linear Technology LT1725
Isolated Flyback Controller
SMT Power Transformer
• Can be used in isolated and nonisolated designs
• Operates with 36 – 72 Volts input; can be used for PoE.
• 1500 Vrms isolation between the primary and the secondary
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 5.1 g
Ambient temperature –40°C to +125°C
Storage temperature Component: –40°C to +125°C.
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 200 per 13″ reel Plastic tape: 44 mm wide,
0.35 mm thick, 28 mm pocket spacing, 9.6 mm pocket depth
PCB washing Only pure water or alcohol recommended
Leakage
Turns ratio
DCR max (Ohms)
Part
L at 0 A2
number1 Power ±10% (µH)
L at Ipk3
min (µH)
L max5
(µH)
Ipk3
7
pri
sec4
bias
pri:sec pri : bias (A)
Output
5 V, 2 A
6
C1048-AL_ 13 W 94.0
84.6
0.210
0.01 0.453
3.9
1 :0.12
1 :0.47 1.2
1. When ordering, please specify packaging code:
C1048-ALD
4. DCR is for both windings of the secondary connected in parallel.
5. Leakage inductance is for the primary winding with the secondary
windings shorted.
6. Turns ratio is with the secondary windings connected in parallel.
7. Output is with the secondary windings connected in parallel. Output of
the bias winding with a 15 V, 0.2 A.
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (200 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.
8. Operating temperature range –40°C to +125°C.
9. Electrical specifications at 25°C.
2. Inductance is for the primary, measured at 250 kHz, 0.3 Vrms, 0 Adc.
3. Peak primary current drawn at minimum input voltage.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Dot indicates pin 1
10
9
0.07
1,79
Recommended
Land Pattern
0.028
0,72
2
1
6
12
12
1
0.098
2,5
Secondary
Primary
0.098
2,5
0.677
17,20
max
11
12
4
6
7
0.135
3,43
0.665
16,88
Bias
0.865
21,97
max
1
Secondary windings to be connected in
parallel on PC board
0.335
8,51
max
0.004/0,10
0.590
14,98
0.079
2,01
0.693
17.60
Specifications subject to change without notice.
Please check our website for latest information.
Document452 Revised10/28/08
© Coilcraft, Inc. 2009
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