**********
* Littelfuse, WX
* TVS Diode SPICE Models
* AK3-xxxC-FB Family
*2026/8/12
* Wuxi Product Engineering
**********
**********
SUBCKT AK3-300C-FB   1   2
*       TERMINALS:   T1  T2
Done    1            3   Dtvs
Dtwo    2            3   Dtvs
Rleak   1            2  150meg
.MODEL  Dtvs         D   (IS=1.0e-5 RS=0.0187 N=1.5 IBV=10m BV=354 CJO=500p)
.ENDS

SUBCKT AK3-335C-FB   1   2
*       TERMINALS:   T1  T2
Done    1            3   Dtvs
Dtwo    2            3   Dtvs
Rleak   1            2  167.5meg
.MODEL  Dtvs         D   (IS=1.0e-5 RS=0.0200 N=1.5 IBV=10m BV=379.5 CJO=470p)
.ENDS


.SUBCKT AK3-350C-FB   1   2
*       TERMINALS:   T1  T2
Done    1            3   Dtvs
Dtwo    2            3   Dtvs
Rleak   1            2  175meg
.MODEL  Dtvs         D   (IS=1.0e-5 RS=0.0280 N=1.5 IBV=10m BV=402 CJO=450p)
.ENDS

.SUBCKT AK3-430C-FB   1   2
*       TERMINALS:   T1  T2
Done    1            3   Dtvs
Dtwo    2            3   Dtvs
Rleak   1            2  215meg
.MODEL  Dtvs         D   (IS=1.0e-5 RS=0.0250 N=1.5 IBV=10m BV=481 CJO=420p)
.ENDS

.SUBCKT AK3-500C-FB   1   2
*       TERMINALS:   T1  T2
Done    1            3   Dtvs
Dtwo    2            3   Dtvs
Rleak   1            2  250meg
.MODEL  Dtvs         D   (IS=1.0e-5 RS=0.0293 N=1.5 IBV=10m BV=556.5 CJO=360p)
.ENDS

SUBCKT AK3-530C-FB   1   2
*       TERMINALS:   T1  T2
Done    1            3   Dtvs
Dtwo    2            3   Dtvs
Rleak   1            2  265meg
.MODEL  Dtvs         D   (IS=1.0e-5 RS=0.0320 N=1.5 IBV=10m BV=607.5 CJO=320p)
.ENDS

SUBCKT AK3-560C-FB   1   2
*       TERMINALS:   T1  T2
Done    1            3   Dtvs
Dtwo    2            3   Dtvs
Rleak   1            2  280meg
.MODEL  Dtvs         D   (IS=1.0e-5 RS=0.0333 N=1.5 IBV=10m BV=623.5 CJO=300p)
.ENDS