FS28-420 Triad Magnetics, FS28-420 Datasheet

FS28-420

Manufacturer Part Number

FS28-420

Description

TRANSF 14VAC .84A SPLIT PACK

Manufacturer

Triad Magnetics

Type

Dual Primaryr

Datasheets

1.FS28-420.pdf (1 pages)

2.FS120-01.pdf (2 pages)

Specifications of FS28-420

Maximum Power

12 VA

Primary Winding(s)

Dual

Secondary Winding(s)

Dual, No Center Tap

Series Output Voltage @ Current

28 VAC @ 420mA

Parallel Output Voltage @ Current

14 VAC @ 840mA

Mounting Type

Through Hole

Power Rating

12 VA

Product

Split Pack Transformers

Primary Voltage Rating

115 V / 230 V

Secondary Voltage Rating

14 V / 28 V

Mounting Style

SMD/SMT

Dimensions

1.875 in L x 1.562 in W x 1.437 in H

Height

1.437 in

Length

1.875 in

Termination Style

Solder

Width

1.562 in

Current Rating

840mA

Transformer Mounting

PC Board

Output Current, Secondary Series

0.42A

No. Of Pins

External Height

1.438"

Weight

0.7lb

Rohs Compliant

Yes

Primary Voltages

2 X 115V

Secondary Voltages

2 X 14V

Approval Bodies

CURus

External Depth

1.875"

External Width

1.563"

Frequency

60Hz

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

10464
237-1051

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FS28-420

Description:

The FS28-420 is a dual primary and dual secondary, split bobbin design which

operates with either a parallel input of 115V or a series input of 230V. The output

voltage will be either 28.0V with a center-tap under a 0.42A load with the

secondaries wired in series, or 14.0V under a 0.84A load with the secondaries

wired in parallel. The split bobbin design eliminates the need for costly

electrostatic shielding.

Electrical Specifications (@25C)

1. Maximum Power: 12.0VA

2. Primary:

3. Secondary: Series: 28.0V CT@ 0.42A; Parallel: 14.0V @ 0.84A

4. Voltage Regulation: 25% TYP @ full load to no load

5. Temperature Rise: 25C TYP

6. Hipot tested 100% at 2500 VRMS

Construction:

Three flange bobbin construction with primaries and secondaries wound side by

side for low capacitive coupling.

Agency File:

UL: File E53148, UL 5085-2 (506), Class B General Purpose Transformer,

cUL: File E53148, UL 5085-2 (506), Class B General Purpose Transformer,

Canadian Use (CSA 22.2, No.66.2-06)

This model is also available in Class 2, UL 5085-3 (1585) version as

Dimensions:

Weight: 0.70 lbs

Schematic:

RoHS Compliance: As of manufacturing date February 2005, all standard

products meet the requirements of 2002/95/EC, known as the RoHS initiative.

As of April 7, 2008, UL standards 506 and 1585 will be migrated to UL 5085-2 and

5085-3, respectably.

* Upon printing, this document is considered “uncontrolled”. Please contact

Web: www.TriadMagnetics.com

Phone 951-277-0757

Fax 951-277-2757

1.437

115/230V

50/60Hz

Triad Magnetics’ website for the most current version.

1.562

Series: 230V; Parallel: 115V

1.875

0.300

22520B Temescal Canyon Road

Corona, California

92883

115/230V

0.400

50/60Hz

PARALLEL

1.410

0.041

115/230V

50/60Hz

Units in inches.

P C M O U N T : SPLIT PACK

O W E R

SERIES

0.020

FS28-420-C2

0.234

Publish Date: April 11, 2008

R A N S F O R M E R

Board Layout

0.06" DIAMETER

HOLE

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