FS28-85 Triad Magnetics, FS28-85 Datasheet

FS28-85

Manufacturer Part Number

FS28-85

Description

TRANSF 14VAC .17A SPLIT PACK

Manufacturer

Triad Magnetics

Type

Dual Primaryr

Datasheets

1.FS28-85.pdf (1 pages)

2.FS56-045.pdf (2 pages)

Specifications of FS28-85

Maximum Power

2.5 VA

Primary Winding(s)

Dual

Secondary Winding(s)

Dual, No Center Tap

Series Output Voltage @ Current

28 VAC @ 85mA

Parallel Output Voltage @ Current

14 VAC @ 170mA

Mounting Type

Through Hole

Power Rating

28 VA

Primary Voltage Rating

230 V

Secondary Voltage Rating

28 V

Mounting Style

PCB

Dimensions

1.375 in L x 1.125 in W x 0.937 in H

Product

Split Pack Transformers

Height

0.937 in

Length

1.375 in

Termination Style

Through Hole

Width

1.125 in

Current Rating

170mA

Transformer Mounting

PC Board

Output Current, Secondary Series

0.085A

No. Of Pins

External Height

0.813"

Weight

0.25lb

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

10450
237-1036

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FS28-85

Description:

The FS28-085 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 0.085A load with the

secondaries wired in series, or 14.0V under a 0.17A load with the secondaries

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

electrostatic shielding.

Electrical Specifications (@25C)

1. Maximum Power: 2.5VA

2. Primary:

3. Secondary: Series: 28.0V CT@ 0.085A; Parallel: 14.0V @ 0.17A

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: 0.25 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

0.937

115/230V

50/60Hz

Triad Magnetics’ website for the most current version.

1.125

Series: 230V; Parallel: 115V

1.375

0.250

22520B Temescal Canyon Road

Corona, California

92883

0.250

115/230V

50/60Hz

PARALLEL

1.200

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

FS28-85-C2

0.234

Publish Date: June 26, 2006

R A N S F O R M E R

Board Layout

0.06" DIAMETER

HOLE

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