HALO Electronics • 2880 Lakeside Drive, Suite 116 • Santa Clara, CA 95054 • PH: 650-903-3800

www.haloelectronics.com • info@haloelectronics.com • This Datasheet: poe-power-transformers.pdf Rev. 9/12

3W, 3.3Vout, Power Transformers (EP7)

Power Over Ethernet, DC/DC Converter

HALO Electronics offers a broad line of power transformers designed for fly-back DC/DC

converters used in Power over Ethernet (PoE) applications. These industrial temperature

range transformers are UL recognized and are fully compliant to IEEE802.3af require-

ments for isolation and power ratings. This standard series is LEAD-free and RoHS

compliant. Please contact your nearest HALO representative for custom designs.

TurnsRatio

DCR(mΩmax) PRIOCL

PRILL

IC

PartNumber

PRI:AUX:SEC:DRV PRI/AUX/SEC/DRV (µH±10%) (µHMax)SCHE. P/N

TGP3-S001EP7LF

1:0.208:0.083

1200/300/20

145

4

A LTC4267

TGP3-S005EP7LF

1: 0.500:0.167

160/300/15

33

1

A

LM5072

TGP3-S009EP7LF 1:0.500:0.150:0.275

1000/550/50/300

160

3

B TPS23750

Electrical Specifications @ 25 °C

Isolation Voltage (PRI – SEC):

1,500Vrms

Operating Temp:

-40 to +85 °C

MECHANICALDIMENSIONS

SCHEMATICA

SCHEMATICB

DIMENSIONS: Inch [mm]

TOLERANCES: 0.006 inch if not specified