Microsemi

RF Products Division

140 Commerce Drive, Montgomeryville PA 18936, (215) 631-9840, Fax: (215) 631-9855

Page 1

Copyright

 2000

MSC

1652.PDF 2001-01-04

SD1474

RF & MICROWAVE TRANSISTORS

R F P R O D UCT S

DI VI SI ON

DESCRIP T ION

DESCRIP T ION

DESCRIP T ION

DESCRIP T ION

The SD1474 is a Class C 28 V common emitter device optimized

for pulsed applications in the 400-500MHz frequency range.

Refractory gold metallization and emitter ballasting ensure long-term

reliability as well as device ruggedness under severe load mismatch

conditions.

SD1474 is characterized for both CW and pulsed operation and is

provided in an industry–standard .400” Square hermetic package.

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

KEY FEATURE S

KEY FEATURE S

KEY FEATURE S

KEY FEATURE S

425 MHz

28 Volts

Common Emitter

Gold Metallization

Emitter Ballasted

APPLICATIONS/BENEFIT

APPLICATIONS/BENEFIT

APPLICATIONS/BENEFIT

APPLICATIONS/BENEFITS

SS

S

UHF Pulsed

Applications

Symbol

Parameter

Value

Unit

Collector-Base Voltage

60

V

Collector-Emitter Voltage

60

V

Emitter-Base Voltage

4.0

V

Device Current

5

A

Power Dissipation

87.5

W

Junction Temperature

+200

°C

Storage Temperature

-65 to +150

°C

THERMAL DATA

Junction-Case Thermal Resistance

2.0

°C/W

PIN CONNECTION

1

2

3

4

1. Collector

2. Emitter

3. Base

4. Emitter