This document provides a device modeling report for a Schottky rectifier diode with part number RB051L-40 from manufacturer ROHM. It describes the PSpice model parameters for the diode and shows simulation results that compare well with measurements of the diode's forward current, reverse breakdown voltage, and junction capacitance characteristics. Simulation error is generally within 5% across all testing conditions.

1. Device Modeling Report
COMPONENTS:
DIODE/ SCHOTTKY RECTIFIER / STANDARD
PART NUMBER: RB051L-40
MANUFACTURER: ROHM
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
0.01m
D7
V3
0Vdc
DRB051L_40
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
0.01 0.170 0.170 -0.12
0.02 0.189 0.188 -0.53
0.05 0.212 0.211 -0.47
0.1 0.231 0.230 -0.43
0.2 0.252 0.250 -0.80
0.5 0.280 0.278 -0.72
1 0.303 0.302 -0.33
2 0.331 0.330 -0.30
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004

5. Junction Capacitance Characteristic
Circuit Simulation Result
Evaluation Circuit
V2
0Vdc
V1 = 0 V1 D5
V2 = 20
TD = 0
TR = 1us DRB051L_40
TF = 1us
PW = 5s
PER = 10s
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
0 721.108 741.149 2.70
0.1 738.835 729.708 -1.25
0.2 716.329 715.529 -0.11
0.5 690.282 677.923 -1.82
1 618.645 618.878 0.04
2 527.023 526.898 -0.02
5 341.817 343.415 0.47
10 191.916 199.992 4.04
20 97.53 93.06 -4.79
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004