This device modeling report summarizes simulations of the 3D-22 thermistor from Ishizuka Electronics Corporation. The report includes graphs of the thermistor's current transient characteristics when subjected to a 20A pulse, its thermal characteristics as temperature increases over time, and its resistance characteristics across a range of temperatures. Evaluation circuits were used to simulate the thermistor's behavior under varying conditions.

1. Device Modeling Report
COMPONENTS: POWER THERMISTOR
PART NUMBER: 3D-22
MANUFACTURER: Ishizuka Electronics Corporation
Bee Technologies Inc.
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

2. Thermistor Current Transient Characteristic
Simulation result
20A
10A
0A
-10A
-20A
0s 2s 4s 6s 8s 10s
I(X_U1.Vsense)
Time
Evaluation circuit
U1
3D-22
V1
VO FF = 0
VA MPL = 10
FREQ = 5 0Hz
0
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

3. Thermal Characteristic (temperature vs. time)
Simulation result
°C
150
100
50
25
0s 2s 4s 6s 8s 10s 12s
V(X_U1.T_AVG)/1V
Time
Evaluation circuit
U1
3D-22
V1
VO FF = 0
VA MPL = 10
FREQ = 5 0Hz
0
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

4. Resistance Characteristic
Simulation result
3.0 Ω
2.0
1.0
0
25 40 80 120 160
V(X_U1.R_T)/1V
°C
V(X_U1.T_AVG)/1V
Evaluation circuit
U1
3D-22
V1
VO FF = 0
VA MPL = 10
FREQ = 5 0Hz
0
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004