This is a companion project of the following Hackster project:
https://www.hackster.io/alainstas/ltspice-simulation-of-a-fire-detector-with-vishay-ntc-d24a02
I have now added 2 functionalities: an SCR is triggered on when conditions of fire detection are fulfilled, and the alarm will continue even if temperature gets back to normal values.
There is a also now a rate of rise feature by the circuit: instead of detecting a pure tempertaure level, the circuit detects also a speed of rising of the temperature. A first thermistor (10 Kohms NTCLE203E3103_B0 )which must be exposed detects the temperature change with a response time of a few seconds, while another thermistor (1 100 Kohms NTCLE100E3104_B0 which must be protected) will follow the same variations but with a response time of several hundred of seconds. For very slow temperature changes (even through the whole temperature range of -40°C/ 50°c), the two thermistors will compensate each other and the trigger conditions won't be met. The circuit diagram is as follows:
An ABV source V=ddt(x) represents the derivation of the system temperature Tsystem and is represented in order to visualize when the 555 is triggered on (V(SW)=9V). With this simulation, the V1 source can be programmed as the user wishes, in order to determine the triggering conditions.
In the provided simulation, two profiles are tested: we see that the triggering happens for both conditions (thershold trespassing, and excessive rate of rise).
The user can then adapt all the circuit elements so that the switch on corresponds to his requirements (for example high limit = 60°C and rate of rise =20 °C)
netlist for a Vishay NTC themistor with temperature driven by voltage
Plain textnetlist for a spice model
* Voltage_driven_thermistor
*
* customer : hackster
* $Revision: 1.0 $
* $Author: Alain Stas $
* $Date: 17 July 2016 $
* $Revision History :correction <> introduced
*---------------------------------------------------------------
*
*
*$
.SUBCKT NTC_BASE RN Rp Ti Params: W=1 X=1 Y=1 Z=1 GTH=1 GTH1=1 CTH=1 A=1 R25=1 B=1 C=1 D=1 T0=273.15 TRmc=5 TBmc=1
R_RTR 0 TR {mc(1,TR-1)}
I_ITR 0 TR 1
R_RTB 0 TB {mc(1,TB-1)}
I_ITB 0 TB 1
G_G1 AOUT 0 VALUE { if(V(Ti)>25,V(AOUT,
+ 0)/(R25*V(TR)*exp(((D*V(TB)/(T0+abs(V(H))+V(Ti))+C*V(TB))/(T0+abs(V(H))+V(Ti))+B*V(TB))/(T0+V(Ti)+abs(V(H)))+A*V(TB))),0)
+ }
G_G2 AOUT 0 VALUE { IF(V(Ti)>25,0,V(AOUT,
+ 0)/(R25*V(TR)*exp(((Z*V(TB)/(T0+abs(V(H))+V(Ti))+Y*V(TB))/(T0+abs(V(H))+V(Ti))+X*V(TB))/(T0+abs(V(H))+V(Ti))+W*V(TB))))
+ }
G_G3 H 0 VALUE {
+ if(V(Ti)>25,-V(RP,RN)*V(RP,RN)/(R25*V(TR)*exp(((D*V(TB)/(T0+abs(V(H))+V(Ti))+C*V(TB))/(T0+abs(V(H))+V(Ti))+B*V(TB))/
+ (T0+V(Ti)+abs(V(H)))+A*V(TB))),0)}
G_G4 H 0 VALUE {
+ if(V(Ti)>25,0,-V(RP,RN)*V(RP,RN)/(R25*V(TR)*exp(((Z*TB/(T0+abs(V(H))+V(Ti))+Y*V(TB))/(T0+abs(V(H))+V(Ti))+X*V(TB))/
+ (T0+V(Ti)+abs(V(H)))+W*V(TB))))}
G_G5 RP RN VALUE { V(RP, RN)/V(AOUT) }
G_G6 H 0 VALUE { V(H)*(Gth + Gth1*(V(Ti)-25)) }
I_I1 0 AOUT DC 1Adc
R_R1 0 AOUT 1T TC=0,0
R_R2 0 H 1T TC=0,0
C_C1 0 H {Cth}
R_R99 0 Ti 1T
.IC V(H) =0
.ENDS
*$
.SUBCKT NTCS0805E3684_XT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X1 RN Rp Ti NTC_BASE Params:
+ w=-15.960492581963
+ x=5523.15364280883
+ y=-229163.669949468
+ z=363212.812557817
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-15.9604925819634
+ r25=680000
+ b=5523.15364280883
+ c=-229163.669949468
+ d=363212.812557817
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3683_XT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X2 RN Rp Ti NTC_BASE Params:
+ w=-14.864567961533
+ x=4791.5065960973
+ y=-93249.887887675
+ z=-4166790.45148179
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-14.8645679615339
+ r25=68000
+ b=4791.5065960973
+ c=-93249.887887675
+ d=-4166790.45148179
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3474_XT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X3 RN Rp Ti NTC_BASE Params:
+ w=-14.794712363821
+ x=4839.842
+ y=-115334
+ z=-3730535
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-14.7947123638219
+ r25=470000
+ b=4839.842
+ c=-115334
+ d=-3730535
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3473_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X4 RN Rp Ti NTC_BASE Params:
+ w=-15.032300388762
+ x=5179.93432510098
+ y=-233607.120677708
+ z=7597557.06340118
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-15.0323003887629
+ r25=47000
+ b=5179.93432510098
+ c=-233607.120677708
+ d=7597557.06340118
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3472_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X5 RN Rp Ti NTC_BASE Params:
+ w=-12.407107004141
+ x=3778.38608505299
+ y=33708.0168743401
+ z=-17091038.2603767
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-12.4071070041412
+ r25=4700
+ b=3778.38608505299
+ c=33708.0168743401
+ d=-17091038.2603767
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3334_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X6 RN Rp Ti NTC_BASE Params:
+ w=-14.476080802527
+ x=4744.842
+ y=-115334
+ z=-3730535
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-14.4760808025273
+ r25=330000
+ b=4744.842
+ c=-115334
+ d=-3730535
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3333_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X7 RN Rp Ti NTC_BASE Params:
+ w=-14.610948767717
+ x=4997.48896697033
+ y=-231003.837768469
+ z=11872256.7334812
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-14.6109487677176
+ r25=33000
+ b=4997.48896697033
+ c=-231003.837768469
+ d=11872256.7334812
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3223_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X8 RN Rp Ti NTC_BASE Params:
+ w=-13.810061704584
+ x=4464.33989162779
+ y=-91067.4624952509
+ z=-3682697.02233691
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-13.8100617045846
+ r25=22000
+ b=4464.33989162779
+ c=-91067.4624952509
+ d=-3682697.02233691
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3222_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X9 RN Rp Ti NTC_BASE Params:
+ w=-12.022147939918
+ x=3397.22810533551
+ y=116133.116092231
+ z=-17986435.276086
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-12.0221479399188
+ r25=2200
+ b=3397.22810533551
+ c=116133.116092231
+ d=-17986435.276086
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3153_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X10 RN Rp Ti NTC_BASE Params:
+ w=-13.283039163800
+ x=4167.09302924605
+ y=-23689.4127954143
+ z=-11316152.4821544
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-13.2830391638009
+ r25=15000
+ b=4167.09302924605
+ c=-23689.4127954143
+ d=-11316152.4821544
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3104_XT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X11 RN Rp Ti NTC_BASE Params:
+ w=-15.258198494082
+ x=5147.89965225205
+ y=-199635.115218401
+ z=6303582.47627097
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-15.2581984940823
+ r25=100000
+ b=5147.89965225205
+ c=-199635.115218401
+ d=6303582.47627097
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3104_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X12 RN Rp Ti NTC_BASE Params:
+ w=-13.633890559134
+ x=4624.07407976041
+ y=-162624.034923012
+ z=-1216588.60209115
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-13.6338905591344
+ r25=100000
+ b=4624.07407976041
+ c=-162624.034923012
+ d=-1216588.60209115
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3103_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X13 RN Rp Ti NTC_BASE Params:
+ w=-13.40885683108
+ x=4547.96149408261
+ y=-176965.917057285
+ z=3861153.74690121
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.08216
+ a=-13.408856831082
+ r25=10000
+ b=4547.96149408261
+ c=-176965.917057285
+ d=3861153.74690121
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3103_LT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X14 RN Rp Ti NTC_BASE Params:
+ w=-15.407851685736
+ x=6432.86844226693
+ y=-706230.001955726
+ z=47085918.8340211
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-15.4078516857364
+ r25=10000
+ b=6432.86844226693
+ c=-706230.001955726
+ d=47085918.8340211
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0805E3103_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X15 RN Rp Ti NTC_BASE Params:
+ w=-12.760931023421
+ x=3271.30574915945
+ y=291826.403510391
+ z=-39595327.6468017
+ gth=0.0048 gth1 = 0.0000267
+ cth=0.03216
+ a=-12.7609310234213
+ r25=10000
+ b=3271.30574915945
+ c=291826.403510391
+ d=-39595327.6468017
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3683_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X16 RN Rp Ti NTC_BASE Params:
+ w=-15.631687995314
+ x=5696.9706158521
+ y=-389523.672461065
+ z=24008865.2720328
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-15.6316879953145
+ r25=68000
+ b=5696.9706158521
+ c=-389523.672461065
+ d=24008865.2720328
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3473_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X17 RN Rp Ti NTC_BASE Params:
+ w=-14.853753305122
+ x=5126.73027409285
+ y=-256529.141866533
+ z=14429112.0366482
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-14.8537533051224
+ r25=47000
+ b=5126.73027409285
+ c=-256529.141866533
+ d=14429112.0366482
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3472_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X18 RN Rp Ti NTC_BASE Params:
+ w=-12.466755245940
+ x=3337.52734699875
+ y=200392.420077018
+ z=-26017659.4249521
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-12.4667552459405
+ r25=4700
+ b=3337.52734699875
+ c=200392.420077018
+ d=-26017659.4249521
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3333_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X19 RN Rp Ti NTC_BASE Params:
+ w=-14.518924355323
+ x=5042.19238100273
+ y=-266491.400082211
+ z=16040058.1503681
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-14.5189243553236
+ r25=33000
+ b=5042.19238100273
+ c=-266491.400082211
+ d=16040058.1503681
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3272_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X20 RN Rp Ti NTC_BASE Params:
+ w=-12.022147939918
+ x=3397.22810533551
+ y=116133.116092231
+ z=-17986435.276086
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-12.0221479399188
+ r25=2700
+ b=3397.22810533551
+ c=116133.116092231
+ d=-17986435.276086
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3223_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X21 RN Rp Ti NTC_BASE Params:
+ w=-13.436446712828
+ x=4278.16605968043
+ y=-59797.420122998
+ z=-6358363.60489759
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-13.4364467128288
+ r25=22000
+ b=4278.16605968043
+ c=-59797.420122998
+ d=-6358363.60489759
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3222_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X22 RN Rp Ti NTC_BASE Params:
+ w=-11.753826625144
+ x=3317.22810533551
+ y=116133.116092231
+ z=-17986435.276086
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-11.7538266251443
+ r25=2200
+ b=3317.22810533551
+ c=116133.116092231
+ d=-17986435.276086
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3202_LT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X23 RN Rp Ti NTC_BASE Params:
+ w=-11.418451094150
+ x=3217.25238428639
+ y=116125.772409905
+ z=-17985711.922342
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-11.4184510941507
+ r25=2000
+ b=3217.25238428639
+ c=116125.772409905
+ d=-17985711.922342
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3153_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X24 RN Rp Ti NTC_BASE Params:
+ w=-13.692171596331
+ x=4756.05357621921
+ y=-234664.440293618
+ z=10074804.8964881
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-13.6921715963311
+ r25=15000
+ b=4756.05357621921
+ c=-234664.440293618
+ d=10074804.8964881
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3124_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X25 RN Rp Ti NTC_BASE Params:
+ w=-13.633890559134
+ x=4624.07407976041
+ y=-162624.034923012
+ z=-1216588.60209115
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-13.6338905591344
+ r25=122000
+ b=4624.07407976041
+ c=-162624.034923012
+ d=-1216588.60209115
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3104_XT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X26 RN Rp Ti NTC_BASE Params:
+ w=-15.431309395743
+ x=5337.10027599483
+ y=-267728.681013195
+ z=14375045.7126114
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-15.4313093957435
+ r25=100000
+ b=5337.10027599483
+ c=-267728.681013195
+ d=14375045.7126114
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3103_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X27 RN Rp Ti NTC_BASE Params:
+ w=-13.409568891799
+ x=4481.79886463418
+ y=-150521.691593129
+ z=1877102.65189547
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-13.4095688917995
+ r25=10000
+ b=4481.79886463418
+ c=-150521.691593129
+ d=1877102.65189547
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3103_LT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X28 RN Rp Ti NTC_BASE Params:
+ w=-10.510144466257
+ x=2816.74879403825
+ y=172444.245970535
+ z=-23248305.132252
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-10.4528701153889
+ r25=10000
+ b=1363.9319167994
+ c=1013209.19138484
+ d=-146294479.644505
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0603E3103_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X29 RN Rp Ti NTC_BASE Params:
+ w=-12.34230403172
+ x=2881.2571585212
+ y=403597.734300555
+ z=-49342307.1774576
+ gth=0.0031 gth1 = 0.00002
+ cth=0.0081
+ a=-12.342304031723
+ r25=10000
+ b=2881.2571585212
+ c=403597.734300555
+ d=-49342307.1774576
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3683_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X30 RN Rp Ti NTC_BASE Params:
+ w=-15.267183107948
+ x=5530.5904679316
+ y=-366141.909196042
+ z=22167011.1133658
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-15.2671831079486
+ r25=68000
+ b=5530.5904679316
+ c=-366141.909196042
+ d=22167011.1133658
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3474_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X31 RN Rp Ti NTC_BASE Params:
+ w=-14.122042041123
+ x=4624.725
+ y=-98275
+ z=-7522357
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-14.1220420411236
+ r25=470000
+ b=4624.725
+ c=-98275
+ d=-7522357
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3473_XT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X32 RN Rp Ti NTC_BASE Params:
+ w=-12.34830154520
+ x=2375.04150212332
+ y=688294.134893528
+ z=-89066341.2521688
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-12.348301545201
+ r25=47000
+ b=2375.04150212332
+ c=688294.134893528
+ d=-89066341.2521688
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3472_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X33 RN Rp Ti NTC_BASE Params:
+ w=-11.68386745134
+ x=3044.58586381301
+ y=240138.301577552
+ z=-32576647.4955603
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.015
+ a=-11.683867451346
+ r25=4700
+ b=3044.58586381301
+ c=240138.301577552
+ d=-32576647.4955603
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3333_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X34 RN Rp Ti NTC_BASE Params:
+ w=-14.324933144520
+ x=5143.94984985209
+ y=-314375.102305495
+ z=16129553.9022413
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-14.3249331445202
+ r25=33000
+ b=5143.94984985209
+ c=-314375.102305495
+ d=16129553.9022413
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3223_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X35 RN Rp Ti NTC_BASE Params:
+ w=-13.142378763615
+ x=4210.13465565959
+ y=-50179.4939878696
+ z=-10972255.5701807
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-13.1423787636159
+ r25=22000
+ b=4210.13465565959
+ c=-50179.4939878696
+ d=-10972255.5701807
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3214_MT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X36 RN Rp Ti NTC_BASE Params:
+ w=-13.633890559134
+ x=4624.07407976041
+ y=-162624.034923012
+ z=-1216588.60209115
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-13.6338905591344
+ r25=210000
+ b=4624.07407976041
+ c=-162624.034923012
+ d=-1216588.60209115
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3153_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X37 RN Rp Ti NTC_BASE Params:
+ w=-11.92142256195
+ x=2506.80663963102
+ y=510855.08547963
+ z=-59189761.3953198
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-11.921422561955
+ r25=15000
+ b=2506.80663963102
+ c=510855.08547963
+ d=-59189761.3953198
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3104_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X38 RN Rp Ti NTC_BASE Params:
+ w=-14.543162756715
+ x=4764.8434748393
+ y=-115334.436689962
+ z=-3730492.72657145
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-14.5431627567158
+ r25=100000
+ b=4764.8434748393
+ c=-115334.436689962
+ d=-3730492.72657145
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3103_LT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X39 RN Rp Ti NTC_BASE Params:
+ w=-12.071363419787
+ x=3503.9022352597
+ y=109390.795353269
+ z=-24154454.7403073
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-12.0713634197875
+ r25=10000
+ b=3503.9022352597
+ c=109390.795353269
+ d=-24154454.7403073
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCS0402E3103_HT RN Rp Ti PARAMS: TOLR=0 TOLB=0
X40 RN Rp Ti NTC_BASE Params:
+ w=-11.816831376457
+ x=2488.92228440514
+ y=495163.925955402
+ z=-55693680.8539762
+ gth=0.0023 gth1 = 0.0000133
+ cth=0.0042
+ a=-11.8168313764576
+ r25=10000
+ b=2488.92228440514
+ c=495163.925955402
+ d=-55693680.8539762
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE213E3303_HB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X41 RN Rp Ti NTC_BASE Params:
+ w=-14.5513561
+ x=4752.725
+ y=-98275
+ z=-7522357
+ gth=0.0022 gth1 = 0.0000033
+ cth=0.018
+ a=-14.55135614
+ r25=30000
+ b=4752.725
+ c=-98275
+ d=-7522357
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE213E3212_MB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X42 RN Rp Ti NTC_BASE Params:
+ w=-12.002581720610
+ x=3670.667
+ y=-7617.13
+ z=-5914730
+ gth=0.0022 gth1 = 0.0000033
+ cth=0.018
+ a=-21.0133817206104
+ r25=2100
+ b=11886.95
+ c=-2504699
+ d=247033800
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE213E3123_MB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X43 RN Rp Ti NTC_BASE Params:
+ w=-13.8973229
+ x=4557.725
+ y=-98275
+ z=-7522357
+ gth=0.0022 gth1 = 0.0000033
+ cth=0.018
+ a=-13.89732294
+ r25=12000
+ b=4557.725
+ c=-98275
+ d=-7522357
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE213E3104_XB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X44 RN Rp Ti NTC_BASE Params:
+ w=-16.0349060
+ x=5459.339
+ y=-191141
+ z=-3328322
+ gth=0.0022 gth1 = 0.0000033
+ cth=0.018
+ a=-16.03490603
+ r25=100000
+ b=5459.339
+ c=-191141
+ d=-3328322
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE213E3103_LB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X45 RN Rp Ti NTC_BASE Params:
+ w=-12.8922832
+ x=4245.148
+ y=-87493
+ z=-9588114
+ gth=0.0022 gth1 = 0.0000033
+ cth=0.018
+ a=-12.89228328
+ r25=10000
+ b=4245.148
+ c=-87493
+ d=-9588114
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE213E3103_HB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X46 RN Rp Ti NTC_BASE Params:
+ w=-14.6571976
+ x=4798.842
+ y=-115334
+ z=-3730535
+ gth=0.0022 gth1 = 0.0000033
+ cth=0.018
+ a=-14.65719769
+ r25=10000
+ b=4798.842
+ c=-115334
+ d=-3730535
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE203E3683_B0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X47 RN Rp Ti NTC_BASE Params:
+ w=-16.0349060
+ x=5459.339
+ y=-191141
+ z=-3328322
+ gth=0.0025 gth1 = 0.0000033
+ cth=0.028
+ a=-16.03490603
+ r25=68000
+ b=5459.339
+ c=-191141
+ d=-3328322
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE203E3502SB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X48 RN Rp Ti NTC_BASE Params:
+ w=-14.6571976
+ x=4798.842
+ y=-115334
+ z=-3730535
+ gth=0.0032 gth1 = 0.0000167
+ cth=0.032
+ a=-14.65719769
+ r25=5000
+ b=4798.842
+ c=-115334
+ d=-3730535
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE203E3502_B0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X49 RN Rp Ti NTC_BASE Params:
+ w=-14.633719574957
+ x=4791.842
+ y=-115334
+ z=-3730535
+ gth=0.0025 gth1 = 0.0000167
+ cth=0.028
+ a=-14.6337195749572
+ r25=5000
+ b=4791.842
+ c=-115334
+ d=-3730535
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE203E3474_B0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X50 RN Rp Ti NTC_BASE Params:
+ w=-17.643882
+ x=6022.726
+ y=-203157
+ z=-7183526
+ gth=0.0025 gth1 = 0.0000167
+ cth=0.028
+ a=-17.6438824
+ r25=470000
+ b=6022.726
+ c=-203157
+ d=-7183526
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE203E3473_B0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X51 RN Rp Ti NTC_BASE Params:
+ w=-15.5321559
+ x=5229.973
+ y=-160451
+ z=-5414091
+ gth=0.0025 gth1 = 0.0000167
+ cth=0.028
+ a=-15.53215593
+ r25=47000
+ b=5229.973
+ c=-160451
+ d=-5414091
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE203E3472_B0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X52 RN Rp Ti NTC_BASE Params:
+ w=-14.633719574957
+ x=4791.842
+ y=-115334
+ z=-3730535
+ gth=0.0025 gth1 = 0.0000167
+ cth=0.028
+ a=-14.6337195749572
+ r25=4700
+ b=4791.842
+ c=-115334
+ d=-3730535
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE203E3303SB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X53 RN Rp Ti NTC_BASE Params:
+ w=-14.5513561
+ x=4752.725
+ y=-98275
+ z=-7522357
+ gth=0.0032 gth1 = 0.0000167
+ cth=0.032
+ a=-14.55135614
+ r25=30000
+ b=4752.725
+ c=-98275
+ d=-7522357
+ T0=273.15
+ TR={1+TOLR/100}
+ TB={1+TOLB/100}
.ENDS
*$
.SUBCKT NTCLE203E3302SB0 RN Rp Ti PARAMS: TOLR=0 TOLB=0
X54 RN Rp Ti NTC_BASE Params:
+ w=-14.6571976
+ x=4798.842
+ y=-115334
+ z=-3730535
+ gth=0.0032 gth1 = 0.0000167
+ cth=0.032
...
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