ARF521

Microsemi’s products are covered by one or more of U.S. patents 4,895,810 5,045,903 5,089,434 5,182,234 5,019,522 5,262,336 6,503,786 5,256,583

4,748,103 5,283,202 5,231,474 5,434,095 5,528,058 6,939,743 and foreign patents. US and Foreign patents pending. All Rights Reserved.

ARF521 Test Fixture

2-22-02 rf

Gate Bias

Vdd Power

L1

C1

C3

C4

C5

C2

C13

R2

R3

R1

DUT

L2

L3

C6

C12

C9

C10

C11

L4

+125V

RF

Output

RF

Input

C1 - Arco 406 Mica trimmer

C2 - 220pF Semco metal clad

C3 - Arco 464 Mica trimmer

C4 - 820pF ATC 700B

C5- 1000pF ATC 700B

C6 - Arco 463 Mica trimmer

C7-C10 10nF 500V chip

C11-C13 1nF NPO 500V

TL1 - .23" x 1.5" stripline

L1 -- 2t #18 .3" ID .2"L ~50nH

L2 -- 3t #16 AWG .31" ID .3"L ~65nH

L3 -- 10t #22 AWG .25 ID ~470nH

L4 -- VK200-4B ferrite choke ~3uH

R1-R3 -- 1k Ohm 1/4W Carbon

DUT = ARF521

Bias

0 - 12V

C7

C8

TL1

ARF521 Test Circuit 81.36 MHz

A

U

M

M

Q

R

B

1

4

3

2

D

K

E

Seating Plane

C

J

H

PIN 1 - SOURCE

PIN 2 - GATE

PIN 3 - SOURCE

PIN 4 - DRAIN

M174 Package Outline

.5” SOE

DIM

INCHES

MILLIMETERS

MIN

MAX

MIN

MAX

A

0.096

0.990

24.39

25.14

B

0.465

0.510

11.82

12.95

C

0.229

0.275

5.82

6.98

D

0.216

0.235

5.49

5.96

E

0.084

0.110

2.14

2.79

H

0.144

0.178

3.66

4.52

J

0.003

0.007

0.08

0.17

K

0.435

11.0

M

45° NOM

45° NOM

Q

0.115

0.130

2.93

3.30

R

0.246

0.255

6.25

6.47

U

0.720

0.730

18.29

18.54