da2303 Coilcraft, Inc., da2303 Datasheet

da2303

Manufacturer Part Number

da2303

Description

Smt Power Transformersfor Analog Devices Adm2485isolated Rs-485 Transceiver

Manufacturer

Coilcraft, Inc.

Datasheet

1.DA2303.pdf (1 pages)

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1. When ordering, please specify termination and packaging codes:

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

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

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.

Part number

DA2303-AL_

DA2304-AL_

Termination: L = RoHS compliant tin-silver over tin over nickel over

Packaging:

series and with the secondary windings shorted.

varies depending on application.

SMT Power Transformers

D = 13 machine ready reel. EIA-481 embossed plastic

B = Less than full reel. In tape, but not machine ready.

phos bronze.

Special order: T = RoHS tin-silver-copper (95.5/4/0.5)

or S = non-RoHS tin-lead (63/37).

tape (600 per full reel).

To have a leader and trailer added ($25 charge), use

code letter D instead.

3.3 V to 6 V

5 V to 6 V

Pri / sec

voltage

DA2303-ALD

Inductance

min (µH)

45.6

17.8

Specifications subject to change without notice.

Please check our website for latest information.

DCR max (Ohms)

0.130

0.086

pri

0.260

0.232

• Developed specifically for Analog Devices ADM2485

• 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

Dimensions are in

sec

0.394

10,00

0.235

5,97

Isolated RS-485 Transceiver for stepping up 5 V or 3.3 V to 6 V.

0.028

0.079

0,70

2,00

max

inductance

max (µH)

Leakage

Dot indicates pin 1

0.319 ±0.004

1.0

0.43

0.475

12,07

8,1 ±0,1

inches

max

For Analog Devices ADM2485

Isolated RS-485 Transceiver

Volt-time

(V-µsec)

product

34.4

21.5

0.004 / 0,10

0.079

2,00

Document 550 Revised 01/05/09

0.063

1,60

Primary windings and secondary

Pri

in series on the PC board.

windings to be connected

Recommended

Power

Land Pattern

(W)

7.2

Document 550

0.358

9,10

Turns ratio

pri : sec

1 : 1.5

1 : 2.2

Sec

0.067

1,70

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