**********************************
**********************************
**
** Littelfuse, LP
** SCR SPICE Models
** Sx01E-SxN1
**
** T. Chenoski
** Irving Technical Center
**
** A 06/14/08
**
**********************************
**********************************
.SUBCKT S401E      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  50
Rlat    2          6  2.64
Ron     3          5  364.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=10F       IBV=1U    BV=400)
.MODEL  Zgate      D  (IS=10F       IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=10P       BF=1.0    CJE=5p     CJC=2p     TF=0.3U)
.MODEL  Nfor       NPN(IS=10P       ISE=1E-9  BF=100.0   RC=13.6M   CJE=30p     CJC=2p      TF=0.3U)
.ENDS

.SUBCKT S4N1       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  50
Rlat    2          6  2.64
Ron     3          5  364.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=10F       IBV=1U    BV=400)
.MODEL  Zgate      D  (IS=10F       IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=10P       BF=1.0    CJE=5p     CJC=2p     TF=0.3U)
.MODEL  Nfor       NPN(IS=10P       ISE=1E-9  BF=100.0   RC=13.6M   CJE=30p     CJC=2p      TF=0.3U)
.ENDS

.SUBCKT S601E      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  50
Rlat    2          6  2.64
Ron     3          5  364.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=10F       IBV=1U    BV=600)
.MODEL  Zgate      D  (IS=10F       IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=10P       BF=1.0    CJE=5p     CJC=2p     TF=0.3U)
.MODEL  Nfor       NPN(IS=10P       ISE=1E-9  BF=100.0   RC=13.6M   CJE=30p     CJC=2p      TF=0.3U)
.ENDS

.SUBCKT S6N1       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  50
Rlat    2          6  2.64
Ron     3          5  364.6m
Dfor    6          4  Zbrk
Drev    1          4  Zbrk
Dgate   6          5  Zgate
.MODEL  Zbrk       D  (IS=10F       IBV=1U    BV=600)
.MODEL  Zgate      D  (IS=10F       IBV=100U  BV=10      VJ=0.3)
.MODEL  Pfor       PNP(IS=10P       BF=1.0    CJE=5p     CJC=2p     TF=0.3U)
.MODEL  Nfor       NPN(IS=10P       ISE=1E-9  BF=100.0   RC=13.6M   CJE=30p     CJC=2p      TF=0.3U)
.ENDS