**********************************
**********************************
**
** Littelfuse, LP
** SCR SPICE Models
** Sxx04xSx
**
** T. Chenoski
** Irving Technical Center
**
** A 06/14/08
**
**********************************
**********************************
.SUBCKT S4004DS1   1  2             3
*       TERMINALS: A  G             K
Qpnp    6          4  1             Pfor      OFF
Qnpn    4          6  5             Nfor      OFF
Rfor    6          4  5G
Rrev    1          4  5G
Rshort  6          5  1MEG
Rlat    2          6  9.09
Ron     3          5  154.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=400)
.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=5E-15     BF=2.20   CJE=10p    CJC=5p     TF=0.3U)
.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=100p    CJC=5p      TF=0.3U)
.ENDS

.SUBCKT S4004VS1   1  2             3
*       TERMINALS: A  G             K
Qpnp    6          4  1             Pfor      OFF
Qnpn    4          6  5             Nfor      OFF
Rfor    6          4  5G
Rrev    1          4  5G
Rshort  6          5  1MEG
Rlat    2          6  9.09
Ron     3          5  154.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=400)
.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=5E-15     BF=2.20   CJE=10p    CJC=5p     TF=0.3U)
.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=100p    CJC=5p      TF=0.3U)
.ENDS

.SUBCKT S6004DS1   1  2             3
*       TERMINALS: A  G             K
Qpnp    6          4  1             Pfor      OFF
Qnpn    4          6  5             Nfor      OFF
Rfor    6          4  5G
Rrev    1          4  5G
Rshort  6          5  1MEG
Rlat    2          6  9.09
Ron     3          5  154.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=600)
.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=5E-15     BF=2.20   CJE=10p    CJC=5p     TF=0.3U)
.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=100p    CJC=5p      TF=0.3U)
.ENDS

.SUBCKT S6004VS1   1  2             3
*       TERMINALS: A  G             K
Qpnp    6          4  1             Pfor      OFF
Qnpn    4          6  5             Nfor      OFF
Rfor    6          4  5G
Rrev    1          4  5G
Rshort  6          5  1MEG
Rlat    2          6  9.09
Ron     3          5  154.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=600)
.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=5E-15     BF=2.20   CJE=10p    CJC=5p     TF=0.3U)
.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=100p    CJC=5p      TF=0.3U)
.ENDS

.SUBCKT S4004DS2   1  2             3
*       TERMINALS: A  G             K
Qpnp    6          4  1             Pfor      OFF
Qnpn    4          6  5             Nfor      OFF
Rfor    6          4  5G
Rrev    1          4  5G
Rshort  6          5  1MEG
Rlat    2          6  9.09
Ron     3          5  154.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=400)
.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=5E-15     BF=1.10   CJE=10p    CJC=5p     TF=0.3U)
.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=100p    CJC=5p      TF=0.3U)
.ENDS

.SUBCKT S4004VS2   1  2             3
*       TERMINALS: A  G             K
Qpnp    6          4  1             Pfor      OFF
Qnpn    4          6  5             Nfor      OFF
Rfor    6          4  5G
Rrev    1          4  5G
Rshort  6          5  1MEG
Rlat    2          6  9.09
Ron     3          5  154.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=400)
.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=5E-15     BF=1.10   CJE=10p    CJC=5p     TF=0.3U)
.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=100p    CJC=5p      TF=0.3U)
.ENDS

.SUBCKT S6004DS2   1  2             3
*       TERMINALS: A  G             K
Qpnp    6          4  1             Pfor      OFF
Qnpn    4          6  5             Nfor      OFF
Rfor    6          4  5G
Rrev    1          4  5G
Rshort  6          5  1MEG
Rlat    2          6  9.09
Ron     3          5  154.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=600)
.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=5E-15     BF=1.10   CJE=10p    CJC=5p     TF=0.3U)
.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=100p    CJC=5p      TF=0.3U)
.ENDS

.SUBCKT S6004VS2   1  2             3
*       TERMINALS: A  G             K
Qpnp    6          4  1             Pfor      OFF
Qnpn    4          6  5             Nfor      OFF
Rfor    6          4  5G
Rrev    1          4  5G
Rshort  6          5  1MEG
Rlat    2          6  9.09
Ron     3          5  154.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=600)
.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=5E-15     BF=1.10   CJE=10p    CJC=5p     TF=0.3U)
.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=100p    CJC=5p      TF=0.3U)
.ENDS