Datasheet > MSD1278T-683ML

MSD1278T-683ML

更新时间： 2024-11-08 05:50:23

品牌	Logo	应用领域
线艺 - COILCRAFT		/
页数	文件大小	规格书
3页	233K
描述
Coupled Inductors

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数据手册

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MSD1278T-683ML 数据手册

Document 704-1

For high temperature

SEPIC applications

Coupled Inductors

–

MSD1278T

The MSD1278T series of coupled inductors was de-

signed for high temperature applications – up to 125°C.

The excellent coupling coefficient (k ≥ 0.94) makes it

ideal for use in SEPIC applications. In SEPIC topolo-

gies, the required inductance for each winding in a

coupled inductor is half the value needed for two sepa-

rate inductors, allowing selection of a part with lower

DCR and higher current handling.

These inductors provide high inductance, high effi-

ciency and excellent current handling in a rugged, low

cost part. They are well suited for use as VRM induc-

tors in high-current DC-DC and VRM/VRD controllers.

They can also be used as two single inductors con-

nected in series or parallel, as a common mode choke

or as a 1 : 1 transformer.

0.484

max

12,3

Dot indicates pin1

1 2 3

OUT

Load

0.484

12,3

Dash number

Internal code

max

–

Typical SEPIC schematic

Refer to Application Note, Document 639,

“Selecting Coupled Inductors for SEPIC Applications”

0.308 ±0.010

7,8 ±0,25

Recommended

Land Pattern

Core material Ferrite

Terminations RoHS compliant matte tin over nickel over phos

bronze. Other terminations available at additional cost.

0.217

5,5

0.197

5,0

0.157

4,0

0.138

3,5

Weight: 3.7 – 4.4 g

Ambient temperature –40°C to +125°C with Irms current, +125°C

to +165°C with derated current

0.197

5,0

0.177

4,5

Storage temperature Component: –40°C to +165°C.

Packaging: –40°C to +80°C

Winding to winding isolation 500 Vrms

0.059

1,5

0.079

2,0

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)

inches

Dimensions are in

Failures in Time (FIT) / Mean Time Between Failures (MTBF)

38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Packaging 500/13″ reel; Plastic tape: 24 mm wide, 0.4 mm thick,

16 mm pocket spacing, 8.1 mm pocket depth

PCB washing Only pure water or alcohol recommended

Specifications subject to change without notice.

Please check our website for latest information.

Document704-1 Revised08/31/09

12 3

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