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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!weretis.net!feeder8.news.weretis.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Jeroen Belleman Newsgroups: sci.electronics.design Subject: Re: fast NPN in LT Spice Date: Mon, 3 Jun 2024 09:58:52 +0200 Organization: A noiseless patient Spider Lines: 23 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Mon, 03 Jun 2024 09:56:48 +0200 (CEST) Injection-Info: dont-email.me; posting-host="56924a58ec05790d3cbdea059897404d"; logging-data="4007896"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+skDzNmIGUrYkQDVD3VTl9" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Cancel-Lock: sha1:Fai49INmRBpercJ+hmr+t10ektA= Content-Language: en-US In-Reply-To: Bytes: 2115 On 6/3/24 00:36, john larkin wrote: > There are many NPNs in the standard LT Spice library. > > Does anyone know of a fast, RF type, transistor? It's hard to tell > from the jillion lines of fine-print parameters. > > I want to make a model of the MC10EP89 gate. > I always used the -now obsolete- BFR92A for such things. That's a 5GHz Ft NPN that I used often. It's not in the library, I think. Below the model. Mind the line wraps. Jeroen Belleman ..model BFR92A NPN IS=4.11877E-016 BF=1.02639E+002 NF=9.97275E-001 VAF=6.26719E+001 IKF=3.20054E+000 ISE=4.01062E-015 NE=1.57708E+000 BR=1.81086E+001 NR=9.96202E-001 VAR=3.36915E+000 IKR=1.28155E+000 ISC=2.79905E-016 NC=1.07543E+000 RB=1.00000E+001 IRB=1.00000E-006 RBM=1.00000E+001 RE=1.16450E+000 RC=2.32000E+000 EG=1.11000E+000 XTI=3.00000E+000 CJE=8.90512E-013 VJE=6.00000E-001 MJE=2.58570E-001 TF=1.54973E-011 XTF=3.91402E+001 VTF=2.15279E+000 ITF=2.13776E-001 CJC=5.46563E-013 VJC=3.80824E-001 MJC=2.02935E-001