DA2303_14 Datasheet, PDF (1/1 Pages) Coilcraft lnc. – SMT Power Transformers

Document 550
SMT Power Transformers ForAnalogDevicesIsolated
RS-485 Transceivers
• Developed for Analog Devices ADM2482E, ADM2485 and
ADM2487E RS-485 Transceivers for stepping up 5 V or 3.3 V
to 6 V.
• Center tapped primary and secondary windings
• 2500 Vrms, one minute 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.
Tape and reel 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  Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf

Leakage

Pri / sec
  _Inductance2   DCR max (Ohms)³   _inductance4
  _{Part number}1
voltage
min (µH)
pri       sec
max (µH)
DA2303-AL_
5 V to 6 V
45.6
0.130
0.260
1.0
DA2304-AL_
3.3 V to 6 V
17.8
0.086
0.232
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. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
4
8
Dot indicates pin 1 Internal code
1
0.394
10,00
max
4
0.235 _max
5,97
0.028
0,70
4
0.475
12,07
max
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.
Parts manufactured prior
to November 2011 may
be marked differently.
0.004 / 0,10
5 ^0.079
2,00
0.358
9,10
1
0.067
1,70
1
0.079
2,00
Dimensions
are
in
inches
mm
US [phone] [e-mail]
UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
8
0.063
1,60
Recommended
Land Pattern
Document 550  Revised 11/29/11
© Coilcraft Inc. 2014
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.