MANUFACTURER

PART NUMBER

APPLICATION

TURNS RATIO(S)

DIMENSIONS

Premier Magnetics

PM-DB2725EX

Isolation

Dual tapped 1:1.79, 1:2.5

.500 x .500 x .375 inches

Technotrol

TL1553-45

Isolation

Dual tapped 1:1.79, 1:2.5

.630 x 630 x .155 inches

Premier Magnetics

PM-DB2702

Stub coupling

1:1.4

.625 x .500 x .250 inches

Technotrol

TQ-1553-2

Stub coupling

1:1.4

.625 x .625 x .250 inches

transformers. Holt recommends the Premier Magnetics

parts as offering the best combination of electrical

performance, low cost and small footprint.

RECOMMENDED TRANSFORMERS

The HI-1579 and HI-1581 transceivers have been

characterized for compliance with the electrical require-

ments of MIL-STD-1553 when used with the following

HI -

(Ceramic)

15xxCD x

HI -

(Plastic)

15xx xx x x

1579

0

0

0

0

20 PIN CERAMIC SIDE BRAZED DIP (20C)

1581

1

1

1

1

20 PIN CERAMIC SIDE BRAZED DIP (20C)

PART

RXENA = 0

RXENB = 0

PACKAGE

NUMBER

RXA

RXB

DESCRIPTION

RXA

RXB

PART

TEMPERATURE

BURN

LEAD

NUMBER

RANGE

FLOW

IN

FINISH

I

-40°C TO +85°C

I

No

Gold (Pb-free, RoHS compliant)

T

-55°C TO +125°C

T

No

Gold (Pb-free, RoHS compliant)

M

-55°C TO +125°C

M

Yes

Tin / Lead (Sn / Pb) Solder

1579

0

0

0

0

1581

1

1

1

1

PART

RXENA = 0

RXENB = 0

NUMBER

RXA

RXB

RXA

RXB

PART

PACKAGE

NUMBER

DESCRIPTION

PC

44 PIN PLASTIC CHIP-SCALE PACKAGE QFN (44PCS)

PS

20 PIN PLASTIC ESOIC, Thermally Enhanced Wide SOIC w/Heat Sink (20HWE)

PART

TEMPERATURE

BURN

NUMBER

RANGE

FLOW

IN

I

-40°C TO +85°C

I

No

T

-55°C TO +125°C

T

No

M

-55°C TO +125°C

M

Yes

PART

LEAD

NUMBER

FINISH

Blank

Tin / Lead (Sn / Pb) Solder

F

100% Matte Tin (Pb-free RoHS compliant)

ORDERING INFORMATION

HI-1579, HI-1581

HOLT INTEGRATED CIRCUITS

7