ARF448A_03 Datasheet, PDF (4/4 Pages) Advanced Power Technology – N-CHANNEL ENHANCEMENT MODE

ARF448A/448B
40.68 MHz Test Circuit
Parts List
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 ~0.47µH
L4 -- VK200-4B ferrite choke ~3µH
R1 -- 25 Ohm 1/2W Carbon
T1 -- 9:1 Broadband Transformer
L4
C6
C7
+
150V
-
L3
L2
C5
C4 ^{RF Output}
RF Input
T1
L1
C1 C2
R1
DUT
C3
40.48 MHz Test Circuit
TO-247 Package Outline
4.69 (.185)
5.31 (.209)
1.49 (.059)
2.49 (.098)
Top View
15.49 (.610)
16.26 (.640)
6.15 (.242) BSC
20.80 (.819)
21.46 (.845)
5.38 (.212)
6.20 (.244)
3.55 (.138)
3.81 (.150)
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.
4.50 (.177) Max.
0.40 (.016)
0.79 (.031)
19.81 (.780)
20.32 (.800)
1.01 (.040)
1.40 (.055)
2.21 (.087)
2.59 (.102)
5.45 (.215) BSC
2-Plcs.
2.87 (.113)
3.12 (.123)
1.65 (.065)
2.13 (.084)
Device
ARF448A ARF448B
Gate
Drain
Source
Source
Drain
Gate
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