DA2303-AL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – SMT Power Transformers

Document 550
SMT Power Transformers ForAnalogDevicesADM2485
Isolated RS-485 Transceiver
• Developed specifically for Analog Devices ADM2485
Isolated RS-485 Transceiver for stepping up 5 V or 3.3 V to 6 V.
• Center tapped primary and secondary windings
• 2500 Vrms interwinding isolation.
Core material Ferrite
Terminations RoHS tin-silver over tin over nickel over phos
bronze. Other terminations available at additional cost.
Weight 0.94 – 1.0 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 600/13″ reel Plastic tape: 24 mm wide, 0.37 mm thick,
16 mm pocket spacing, 6.1 mm pocket depth
PCB washing Only pure water or alcohol recommended
Part number¹
DA2303-AL_
DA2304-AL_
Pri / sec
voltage
5 V to 6 V
3.3 V to 6 V
Inductance²
min (µH)
45.6
17.8
DCR max (Ohms)³
pri
sec
0.130 0.260
0.086 0.232
Leakage
inductance⁴
max (µH)
1.0
0.43
Volt-time
product⁵
(V-µsec)
34.4
21.5
Power⁶
(W)
7.2
7.2
Turns ratio
pri : sec
1 : 1.5
1 : 2.2
1. When ordering, please specify termination and packaging codes:
DA2303-ALD
Termination: L = RoHS compliant tin-silver over tin over nickel over
phos bronze.
Special order: T = RoHS tin-silver-copper (95.5/4/0.5)
or S = non-RoHS tin-lead (63/37).
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (600 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 is tested between pins 4 and 3 at 500 kHz, 0.5 Vrms, 0 Adc.
3. DCR is per winding.
4. Leakage inductance is for the primary with both windings connected in
series and with the secondary windings shorted.
5. Based on Bsat of the core at 25°C and number of turns on winding 4-3.
6. Calculated output power based on 150 kHz operating frequency. Power
varies depending on application.
7. Operating temperature range -40°C to +85°C.
8. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Dot indicates pin 1
4
8
1
0.394 _max
10,00
4
0.235 _max
5,97
0.028
0,70
4
0.475 _max
12,07
0.319 ±0.004
8,1 ±0,1
8
Pri ³
2
7 _Sec
6
5
1
5
Primary windings and secondary
windings to be connected
in series on the PC board.
0.004 / 0,10
5 ^0.079
2,00
0.358
9,10
1
0.067
1,70
8
1
0.079
2,00
Dimensions
are
in
inches
mm
0.063
1,60
Recommended
Land Pattern
© Coilcraft, Inc. 2010
Specifications subject to change without notice.
Please check our website for latest information.
Document 550 Revised 01/05/09