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I am trying to create a PSPICE library using Vishay's .Lib. I have managed to do this, but unfortunately the library is still faulty. I took a look at the Lib file and discovered SPICE parameters that I am not familiar with. These include T_MEASURED, T_ABS, IBVC (perhaps this should be IBV), RBVC, etc.

*********************************************************** Copyright 2020 Vishay Intertechnology, Inc. All rights reserved. *********************************************************** *produced by Vishay General Semiconductor Taiwan *Allen Su, 2017/2/21 * PSPICE * anode cathode * Reverse direction: node 9 <- node 2 .SUBCKT smbj3v3 9 2 DF 9 90 DFMOD .MODEL DFMOD D N = 1.50101 IS = 9.8398E-010 RS = 0.0122063 + EG = 1.21397 XTI = 0.519258 + CJO = 5.2E-009 VJ = 1.3475 M = 0.5 FC = 0.5 + TT = 1E-008 T_MEASURED = 25 T_ABS = 25 * Leakage RL 9 90 RLMOD 17572.5 .MODEL RLMOD RES TC1 = 0 TC2 = 0 T_MEASURED = 25 * Breakdown RBD 90 4 0.0615177 EBD 4 3 10 20 1 DBD 3 9 DBDMOD RBD1 90 6 0.0288951 EBD1 6 7 30 40 1 DBD1 7 9 DBDMOD .MODEL DBDMOD D IS = 1E-015 N = 0.5 T_MEASURED = 25 T_ABS = 25 IBVC 0 10 0.001 RBVC 10 0 RBVCMOD 4100.75 .MODEL RBVCMOD R TC1 = -0.00053 T_MEASURED = 25 IBVC1 0 30 0.001 RBVC1 30 0 8784.37 RBDX 20 23 0.0615177 DBVC 23 0 DBDMOD IBVD 0 20 0.001 RBDX1 40 43 0.0288951 DBVC1 43 0 DBDMOD IBVD1 0 40 49.999 L1 90 2 1E-015 .ENDS

I am not a SPICE expert, but I have never seen the entire model in this form before. Is it possible to modify/correct the lib file so that I end up with a usable lib that I can compile into an OLB using the PSPICE Model Editor?

This is a TVS diode. Here is an example of the notation for a PSPICE diode.

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  • \$\begingroup\$ Sorry, I forgot to say hello. I have also attached an excerpt from the PSPICE log. Reading and checking circuit ERROR(ORPSIM-15113): Model RBVCMOD used by X_U13.RBVC is undefined Circuit has errors ... run aborted See output file for details INFO(ORPROBE-3188): Simulation aborted \$\endgroup\$ Commented Aug 28 at 7:15

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Upon request, I received two libraries for the SMBJ3V3 from Vishay. I successfully converted the following model to an OLB file and simulated it in PSPICE. The second library file has not yet been tested.

*produced by Vishay General Semiconductor Taiwan *Sam Liao, 2024/9/3 * PSPICE .SUBCKT smbj3v3 7 1 * anode cathode *node: 7 1 * Forward Section D1 2 1 MDD1 .MODEL MDD1 D IS=7e-09 N=1.84881 XTI=7.31463 RS= 0.0392234 T_ABS=25 + CJO=5.2e-09 TT=1e-08 * Leakage Current R 1 2 MDR 16500 .MODEL MDR RES (TC1=0 TC2=0) * Breakdown RZ 2 3 0.0585 D3 4 3 MDD3 .MODEL MDD3 D T_ABS=25 IS=1e-15 N=1 EV1 1 4 6 8 1 IBV 0 6 0.001 RBV 6 0 MDRBV 4100 .MODEL MDRBV RES (TC1=0.00053) D4 8 0 MDD3 L 7 2 1e-15 IT 0 8 0.01 .ENDS smbj3v3

Additional model. Neither has been empirically tested in practice yet.

*produced by Vishay General Semiconductor Taiwan *Sam Liao, 2024/8/26 * PSPICE .SUBCKT SMBJ3V3 a c .PARAM RL = 16500 .PARAM RBD = 0.0585 .PARAM RBVC = 4100 DF a 90 DF * Leakage RL a 90 'RL' * Breakdown RBD 90 4 'RBD' EBD 4 3 10 20 1 DBD 3 a DBD IBVC 0 10 0.001 RBVC 10 0 RBVC 'RBVC' RBDX 20 23 'RBD' DBVC 23 0 DBD IBVD 0 20 0.001 L1 90 c 3.4E-010 .MODEL DBD D ( +T_MEASURED= 25 IS = 1e-15 N = 1 ) .MODEL DF D ( +Trs1 = 0.00397025 T_MEASURED= 25 IS = 7e-09 +RS = 0.0392234 N = 1.84881 CJO = 5.2e-09 +VJ = 0.8 M = 0.4 FC = 0.5 +TT = 1e-08 XTI = 7.31463 EG = 1.17 ) .MODEL RBVC R ( +TC1 = 0.00053 ) .ENDS SMBJ3V3

Kind regards

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