ARF448 datasheet(4/4 Pages) ADPOW

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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

ARF448A

Device

ARF448B

Gate

Drain

Source

Drain

Gate

Dimensions in Millimeters and (Inches)

NOTE: The ARF446 and ARF447 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.

DUT

150V

RF Output

RF Input

C1 -- 1800pF 100V chip

C2-C4 -- Arco 463 Mica Trimmer

C5-C7 -- 1nF 500V COG chip

L1 -- 1" #16 AWG into hairpin ~9.6nH

L2 -- 6t #16 AWG .25" ID ~165nH

L3 -- 10t #18 AWG .25" ID ~0.47

µH

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

R1 -- 25 Ohm 1/2W Carbon

T1 -- 9:1 Broadband Transformer

40.48 MHz Test Circuit

Parts List

TO-247 Package Outline

USA

405 S.W. Columbia Street

Bend, Oregon 97702-1035

Phone: (541) 382 - 8028 FAX: (541) 388 - 0364

EUROPE

Avenue J.F. Kennedy Bât B4 Parc Cadéra Nord

F-33700 Merignac - France

Phone: (33) 5 57 92 15 15 FAX: (33) 5 56 47 97 61

ARF448A/448B

40.68 MHz Test Circuit

ARF448 Datasheet(PDF) 4 Page - Advanced Power Technology

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