GA3157-AL COILCRAFT [Coilcraft lnc.], GA3157-AL Datasheet

GA3157-AL

Manufacturer Part Number

GA3157-AL

Description

SMT Power Transformer

Manufacturer

COILCRAFT [Coilcraft lnc.]

Datasheet

1.GA3157-AL.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 for each half of the primary and secondary.

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. Electrical specifications at 25°C.

Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

Part number

GA3157-AL_

SMT Power Transformer

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

Packaging:

series and with the secondary windings shorted.

varies depending on application.

L = 45.6 µH min

DCR = 0.13 Ohms max

L = 45.6 µH min

DCR = 0.13 Ohms max

Primary

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

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

to be connected in series on the PC board.

Primary windings and secondary windings

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.

5 V to 3.3 V

Pri / sec

voltage

GA3157-ALD

Inductance

min (µH)

DCR = 0.155 Ohms max

45.6

Secondary

Specifications subject to change without notice.

Please check our website for latest information.

DCR max (Ohms)

1/2 pri

0.130

1/2 sec

0.155

• Designed specifically for use with Analog Devices

• Center tapped primary and secondary

• 2500 Vrms primary to secondary isolation

Core material Ferrite

Terminations RoHS compliant tin-silver over tin over nickel over

phos bronze. Other terminations available at additional cost.

Weight 1.0 g

Ambient temperature –40°C to +85°C

Storage temperature Component: –40°C to +85°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 per 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

0.394

10,00

0.235

5,97

ADM2482E and ADM2487E High Speed, Isolated RS-485

Transceivers with Integrated Transformer Driver

max

inductance

max (µH)

Leakage

1.14

Dot indicates pin 1

0.475

12,07

inches

For Analog Devices ADM2482E and

ADM2487E RS-485 Transceivers

max

Volt-time

(V-µsec)

product

34.4

Document 686 Revised 10/16/09

0.004 / 0,10

0.063

0.079

1,60

2,00

0.079

0.063

2,00

1,60

0.067

1,70

Power

7.2

(W)

Document 686

Recommended

Land Pattern

Turns ratio

0.358

9,09

pri : sec

1 : 0.88

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