TO-247 Package Outline

ARF461A/B

L1

C1

R2

R1

DUT

L2

L3

C3

C4

C7

C6

C2

C8

C9

L4

250V

+

-

RF

Output

RF

Input

C1 -- 1800pF + 1000pF 100V chips

mounted at gate lead

C2-C5 -- Arco 463 Mica trimmer

C6-C8 -- .1

μF 500V ceramic chip

C9 -- 2200 pF 500 V chip

L1 -- 4t #20 AWG .25"ID .3 "L ~80nH

L2 -- 7t #16 AWG .4" ID .5"L ~335nH

L3 -- 25t #24 AWG .25"ID ~2.2uH

L4 -- VK200-4B ferrite choke 3uH

R1-R2 -- 51 Ohm 0.5W Carbon

DUT = ARF461A/B

40.68 MHz Test Circuit

+

-

Bias

0 - 12V

C5

Gate ------- Drain

Source ---- Source

Drain ------- Gate

Device

ARF- A

ARF- B

NOTE:

These two parts comprise a symmetric pair of RF

power transistors and meet the same electrical specifica-

tions. The device pin-outs are the mirror image of each

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

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)

3.50 (.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)

5.45 (.215) BSC

Dimensions in Millimeters and (Inches)

2-Plcs.

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, 7,352,045 5,283,201 5,801,417 5,648,283 7,196,634 6,664,594 7,157,886 6,939,743 7,342,262

and foreign patents. US and Foreign patents pending. All Rights Reserved.