Index HP noref Index HP noref
Microwave & RF Banner
  how to buy
  Index
 Products
  bjt Bipolar
  fet FET
  amp Apps SG
Spec. SG
amp: freq
amp: P out
amp: Gain
amp: NF
osc: freq
osc: Pout
osc: PN
bias: Voltage
bias: Current
size: BJT
size: FET
pkg: BJT
pkg: FET
 
What's New   RFGlobalnet   www /go/rf   Search /go/rf
 
Transistor Specification Selection Guide
 
FET Package Options
 
 
  SMT   SMT SMT  
package: 43 63 86 84 35 36 77 70 01
family plastic cer her pwr
ATF-10xxx         yes yes      
ATF-13xxx     yes     yes      
ATF-21xxx     yes         yes  
ATF-26xxx       yes   yes      
ATF-36xxx   yes         yes    
ATF-44xxx                 yes
ATF-44xxx                 yes
ATF-46xxx                 yes

What:
available field effect transistor packages

Direction:
depends on application

Surface mount (SMT) compatibility is a requirement for most volume assembly applications. Plastic packages limit maximum junction temperatures to 150 C vs 175 C for other packages, so may limit performance of power products. Ceramic or hermetic packages are typically required for hi-rel applications, and typically offer better performance through reduced parasitics. Packages with high parasitic inductance and/or capacitance (typically plastic packages) may severely limit device performance at higher frequencies (above 2 GHz).

Range:

SMT (surface mount)
Surface mount packages have co-planer leads that allow for device mounting without the use of through holes. Surface mount capability is generally considered to be a requirement for automated assembly.

plastic
43 pkg dwg SOT-343: SC-70 4 lead miniature
63 pkg dwg SOT-363: SC-70 6 lead miniature
86 pkg dwg 4 formed lead 85 mil low parasitic improved thermals
ceramic
35 pkg dwg 4 lead ceramic "micro-x"
36 pkg dwg 4 lead ceramic "micro-x" with lead trim
77 pkg dwg 4 lead 70 mil ceramic low cost for high frequency, high performance
hermetic
70 pkg dwg 4 lead 70 mil stripline for high performance

non-SMT
chip
00 pkg dwg unpackaged chip - obsolete option
plastic
84 pkg dwg 4 trimmed axial lead 85 mil low parasitic improved thermals
power
01 pkg dwg 100 mil flange
71 pkg dwg 70 mil flange - obsolete option


 

Bottom Banner
[(c) Copyright 1997 Hewlett-Packard Company]
[Top] [Contact us with comments]