A D V A N C E D S E M I C O N D U C T O R, I N C.

REV. A

7525 ETHEL AVENUE

• NORTH HOLLYWOOD, CA 91605 • (818) 982-1200 • FAX (818) 765-3004

1/1

Specifications are subject to change without notice.

SYMBOL

MINIMUM TYPICAL MAXIMUM

UNITS

16

V

36

V

4.0

V

5

mA

10

150

---

f = 1.0 MHz

80

pF

η

C

f = 470 MHz

6.5

60

dB

%

NPN SILICON RF POWER TRANSISTOR

MRF644

DESCRIPTION:

The

RF power transistor designed for 12.5

V Class-C applications in 450-513

MHz frequency range.

FEATURES:

• Internal Input Matching Network

• P

• Omnigold™ Metalization System

• Common Emitter, Class-C , 12.5 V

MAXIMUM RATINGS

4.8 A

36 V

16 V

36 V

4.0 V

-65 °C to +200 °C

-65 °C to +150 °C

θ

JC

2.5 °C/W

PACKAGE STYLE .500 6L FLG

MIN IMU M

inches / m m

.490 / 12.45

.210 / 5.33

.003 / 0.08

B

C

D

E

F

G

A

M AXIM U M

.220 / 5.59

.007 / 0.18

.510 / 12.95

inches / m m

.725 / 18.42

H

DIM

K

L

I

J

.970 / 24.64

.980 / 24.89

.170 / 4.32

N

M

.120 / 3.05

.135 / 3.43

.150 / 3.43

.160 / 4.06

.125 / 3.18

.090 / 2.29

.105 / 2.67

.285 / 7.24

.150 / 3.81

.045 / 1.14

E

F

.725/18,42

I

G

J

K

L

M

A

D

C

B

2x Ø N

FU LL R

H

.835 / 21.21

.865 / 21.97

.210 / 5.33

.200 / 5.08

E

C

B

E