This document summarizes the PSpice model for the CMS11 Schottky rectifier diode manufactured by Toshiba. It describes the diode components and parameters, and includes simulation results showing the diode's forward current and junction capacitance characteristics match measurements to within 1-2% error.

1. Device Modeling Report
COMPONENTS:
DIODE/ SCHOOTTKY RECTIFIER / STANDARD
PART NUMBER: CMS11
MANUFACTURER: TOSHIBA
Bee Technologies Inc.
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

2. PSpice model
Model description
parameter
IS Saturation Current
N Emission Coefficient
RS Series Resistance
IKF High-injection Knee Current
CJO Zero-bias Junction Capacitance
M Junction Grading Coefficient
VJ Junction Potential
ISR Recombination Current Saturation Value
BV Reverse Breakdown Voltage(a positive value)
IBV Reverse Breakdown Current(a positive value)
TT Transit Time
EG Energy-band Gap
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

3. Forward Current Characteristic
Circuit Simulation Result
Evaluation Circuit
R1
0.001m
V1
D1
0Vdc
CMS11
0
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

4. Comparison Graph
Circuit Simulation Result
Simulation Result
Vfwd(V) Vfwd(V)
Ifwd(A) %Error
Measurement Simulation
0.1 0.380 0.377 -0.79
0.2 0.400 0.401 0.30
0.5 0.440 0.443 0.73
1 0.490 0.490 0.08
2 0.550 0.554 0.78
5 0.700 0.698 -0.34
10 0.900 0.897 -0.36
20 1.250 1.280 2.40
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

5. Junction Capacitance Characteristic
Circuit Simulation Result
Evaluation Circuit
V2
0Vdc
V2 = 40 V1
V1 = 0
TD = 0 D1
TR = 10ns
TF = 50ns
PW = 5us CMS11
PER = 10us
0
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

6. Comparison Graph
Circuit Simulation Result
Simulation Result
Cj(pF) Cj(pF)
Vrev(V) %Error
Measurement Simulation
1 255.00 255.11 0.04
2 195.00 198.09 1.58
5 135.00 134.09 -0.67
10 97.00 97.63 0.65
20 69.50 69.98 0.69
40 50.00 50.03 0.06
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004