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1N4733A

 

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A simple web search gives at least two hits for a spice model.

Best wishes
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates 
Rayleigh, Essex UK
On 2018-11-27 17:02, madehakamal1996@... [LTspice] wrote:

?

Hello,

? ? ? ? ?I need a spice model of 1N4733A zener diode.
[email protected]
 

I actually found this spice model?

.model D1N4733 D(Is=1.214f Rs=1.078 Ikf=0 N=1 Xti=3 Eg=1.11
+ Cjo=185p M=.3509 Vj=.75 Fc=.5 Isr=2.601n Nr=2 Bv=5.1 Ibv=.70507
+ Nbv=.74348 Ibvl=4.8274m Nbvl=6.7393 Tbv1=176.471u)

but it doesn't work.
 

Hi.
*SRC=1N4733A;1N4733A;Diodes;Zener <=10V; 5.10V ?1.00W ? Diodes Inc. Zener
.SUBCKT 1N4733A ?1 2
* ? ? ? ?Terminals ? ?A ? K
D1 1 2 DF
DZ 3 1 DR
VZ 2 3 3.69
.MODEL DF D ( IS=80.8p RS=0.620 N=1.10 CJO=189p VJ=0.750 M=0.330 TT=50.1n )
.MODEL DR D ( IS=16.2f RS=0.296 N=1.87 )
.ENDS
?
Bordodynov.


27.11.2018, 20:24, "John Woodgate jmw@... [LTspice]" :

?

A simple web search gives at least two hits for a spice model.

Best wishes
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates 
Rayleigh, Essex UK
On 2018-11-27 17:02, madehakamal1996@... [LTspice] wrote:
?

Hello,

? ? ? ? ?I need a spice model of 1N4733A zener diode.
 

¿ªÔÆÌåÓý

'Doesn't work' doesn't tell us anything we can use to help you. Upload the .ASC that doesn't work to Files => Temp and send a message to say you did that.

Best wishes
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates 
Rayleigh, Essex UK
On 2018-11-27 17:28, madehakamal1996@... [LTspice] wrote:

?

I actually found this spice model?


.model D1N4733 D(Is=1.214f Rs=1.078 Ikf=0 N=1 Xti=3 Eg=1.11
+ Cjo=185p M=.3509 Vj=.75 Fc=.5 Isr=2.601n Nr=2 Bv=5.1 Ibv=.70507
+ Nbv=.74348 Ibvl=4.8274m Nbvl=6.7393 Tbv1=176.471u)

but it doesn't work.
 

Hello,

There is a model of the 1N4733 on page 36 in this presentation for students.


.MODEL 1N4733 D(IS=7.03E-16 RS=0.871 TT=5.01E-8 CJO=1.89E-10 VJ=0.75 M=0.33
BV=5.059 IBV=0.049 Vpk=5.1 mfg=Fairchild type=zener)

Best regards,
Helmut
 

madehakamal1996 wrote:

? ? "I actually found this spice model?
? ? ?...
? ? ?but it doesn't work."

In what way does it not work?

Are you asking this question because you don't know how to use a SPICE model?? Did you know what to do with that model, how to use it?? Did you assume that it's broken because you didn't know what to do with it?? Or did you use it (correctly) but the simulation didn't show you the result you expected, and what result would that be?? Or did your computer grind to a halt?

Regards,
Andy

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