PRELIMINARY

TO-247 Package Outline

ARF464A/B

APT's devices are covered by one or more of the following U.S.patents: 4,895,810

5,045,903

5,089,434

5,182,234

5,019,522

5,262,336

5,256,583

4,748,103

5,283,202

5,231,474

5,434,095

5,528,058

15.49 (.610)

16.26 (.640)

5.38 (.212)

6.20 (.244)

6.15 (.242) BSC

4.50 (.177) Max.

19.81 (.780)

20.32 (.800)

20.80 (.819)

21.46 (.845)

1.65 (.065)

2.13 (.084)

1.01 (.040)

1.40 (.055)

5.45 (.215) BSC

3.55 (.138)

3.81 (.150)

2.87 (.113)

3.12 (.123)

4.69 (.185)

5.31 (.209)

1.49 (.059)

2.49 (.098)

2.21 (.087)

2.59 (.102)

0.40 (.016)

0.79 (.031)

2-Plcs.

Top View

ARF - A

Device

ARF - B

Gate

Drain

Source

Source

Drain

Gate

Dimensions in Millimeters and (Inches)

NOTE: These two parts comprise a symmetric pair of RF

power

transistors

and

meet

the

same

electrical

specifications. The device pin-outs are the mirror image

of each other to allow ease of use as a push-pull pair.

L1

C1

R2

R1

DUT

L2

L3

C5

C4

C6

C7

L4

65V

+

-

RF

Output

RF

Input

C1 -- 560pF NPO 50V chip mounted

at gate lead

C2-C3 -- Arco 424 Mica trimmer

C4-C5 -- Arco 463 Mica trimmer

C5-C8 -- 10nF 500V COG chip

L1 -- 3t #18 .25" ID .3"L ~48nH

L2 -- 3t #16 AWG .25" ID .35"L ~68nH

L3 -- 10t #18 AWG .25 ID ~470nH

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

R1-R2 -- 50 Ohm 1/2W Carbon

DUT = ARF464A/B

81.36 MHz Test Circuit

C2

C3

Bias

0 - 12V

C8