1
Rectifier Device Data
SOD–123 Power Surface Mount Package
The Schottky Power Rectifier employs the Schottky Barrier principle with a barrier
metal that produces optimal forward voltage drop–reverse current tradeoff. Ideally
suited for low voltage, high frequency rectification, or as a free wheeling and polarity
protection diodes in surface mount applications where compact size and weight are
critical to the system. This package provides an alternative to the leadless 34 MELF
style package. These state–of–the–art devices have the following features:
•Guardring for Stress Protection
•Very Low Forward Voltage
•Epoxy Meets UL94, VO at 1/8″
•Package Designed for Optimal Automated Board Assembly
Mechanical Characteristics:
•Reel Options: 3,000 per 7 inch reel / 8 mm tape
•Reel Options: 10,000 per 13 inch reel / 8 mm tape
•Device Marking: B4
•Polarity Designator: Cathode Band
•Weight: 11.7 mg (approximately)
•Case: Epoxy Molded
•Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable
•Lead and Mounting Surface Temperature for Soldering Purposes: 260°C max. for 10 Seconds
MAXIMUM RATINGS
Rating Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
40 V
Average Rectified Forward Current (At Rated VR, TC = 115°C) IO0.5 A
Peak Repetitive Forward Current
(At Rated VR, Square Wave, 20 kHz, TC = 115°C) IFRM 1.0 A
Non–Repetitive Peak Surge Current
(Surge applied at rated load conditions, halfwave, single phase, 60 Hz) IFSM 5.5 A
Storage / Operating Case Temperature Tstg, TC–55 to 150 °C
Operating Junction Temperature TJ–55 to 150 °C
Voltage Rate of Change (Rated VR, TJ = 25°C) dv/dt 1,000 V/
m
s
THERMAL CHARACTERISTICS
Thermal Resistance – Junction–to–Lead (2)
Thermal Resistance – Junction–to–Ambient (3) Rtjl
Rtja 118
206 °C/W
ELECTRICAL CHARACTERISTICS
Maximum Instantaneous Forward Voltage (1) VFTJ = 25°C TJ = 100°CV
(IF = 0.5 A)
(IF = 1 A) 0.51
0.62 0.46
0.61
Maximum Instantaneous Reverse Current IRTJ = 25°C TJ = 100°C
m
A
(VR = 40 V)
(VR = 20 V) 20
10 5,000
13,000
This document contains information on a new product. Specifications and information herein are subject to change without notice.
(1) Pulse Test: Pulse Width ≤ 250 µs, Duty Cycle ≤2.0%.
(2) Mounted with minimum recommended pad size, PC Board FR4.
(3) 1 inch square pad size (1 X 0.5 inch for each lead) on FR4 board.
Motorola, Inc. 1996
Order this document
by MBR0540T1/D
SEMICONDUCTOR TECHNICAL DATA
SCHOTTKY BARRIER
RECTIFIER
0.5 AMPERES
40 VOLTS
CASE 425–04, Style 1
SOD–123
Rev 2
MBR0540T1
2Rectifier Device Data
0.2
10
1.0
0.1 0.6 1.20.4 0.8 1.0
Figure 1. Typical Forward Voltage Figure 2. Maximum Forward Voltage
Figure 3. Typical Reverse Current Figure 4. Maximum Reverse Current
Figure 5. Current Derating Figure 6. Forward Power Dissipation
0.2
VF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
10
1.0
VF, MAXIMUM INSTANTANEOUS FORWARD VOLTAGE (VOL TS)
400
VR, REVERSE VOLTAGE (VOLTS)
100E–3
1.0E–3
100E–6
10E–6
1.0E–6
100E–9
VR, REVERSE VOLTAGE (VOLTS)
20 600
TL, LEAD TEMPERATURE (
°
C)
0.8
0.4
0.3
0.2
0.1
0
IO, A VERAGE FORWARD CURRENT (AMPS)
0.10
0.45
0.40
0.35
0.15
0.05
00.440
IF, INSTANTANEOUS FOR WARD CURRENT (AMPS)I
0.1 0.6 1.20.4 0.8
10 20 30
, A VERAGE FORWARD CURRENT (AMPS)IO
80 120100
0.5
0.2 0.3 0.5 0.8
0.10
PFO, AVERAGE POWER DISSIPA TION (WATTS) IF, INSTANTANEOUS FORWARD CURRENT (AMPS)
, REVERSE CURRENT (AMPS)
R
400
VR, REVERSE VOLTAGE (VOLTS)
I
10 20 30
, MAXIMUM REVERSE CURRENT (AMPS)
R
140
0.6
TJ = 125
°
C
TJ = 100
°
C
TJ = –40
°
C
TJ = 25
°
CTJ = 125
°
CTJ = 100
°
C
TJ = 25
°
C
TJ = 125
°
C
TJ = 100
°
C
TJ = 25
°
C
TJ = 125
°
C
TJ = 100
°
C
TJ = 25
°
C
SQUARE W AVE dc
Ipk/Io =
p
Ipk/Io = 5
Ipk/Io = 10
Ipk/Io = 20
Ipk/Io = 20
Ipk/Io = 10
Ipk/Io = 5
Ipk/Io =
p
SQUARE W AVE
dc
100
1.0
10E–3
100E–3
1.0E–3
100E–6
10E–6
1.0E–6
100E–9
10E–3
0.7
0.30
0.20
0.25
0.6 0.7
FREQ = 20 kHz
25
°
C
MBR0540T1
3
Rectifier Device Data
Figure 7. Capacitance Figure 8. Typical Operating Temperature Derating*
Figure 9. Thermal Response Junction to Lead
Figure 10. Thermal Response Junction to Ambient
300
VR, REVERSE VOLTAGE (VOLTS)
100
10
VR, DC REVERSE VOLTAGE (VOLTS)
25 400
118
114
112
110
1000.10.00001
T, TIME (s)
1.00E+00
1.00E–01
1.00E–02
1,000
C, CAPACITANCE (pF)
T
R
155.0 10 20 25 35 40 30 355.0 10 2015
116
120
126
0.0001 0.001 0.01 1.0 10
, DERATED OPERATING TEMPERATURE ( C)
J
°
1.00E–03
, TRANSIENT THERMAL RESISTANCE (NORMALIZED)
(T)
T, TIME (s)
1.00E+00
1.00E–01
1.00E–02
R
1.00E–03
, TRANSIENT THERMAL RESISTANCE (NORMALIZED)
(T)
* Reverse power dissipation and the possibility of thermal runaway must be considered when operating this device under any re-
verse voltage conditions. Calculations of TJ therefore must include forward and reverse power effects. The allowable operating
TJ may be calculated from the equation: TJ = TJmax – r(t)(Pf + Pr) where
r(t) = thermal impedance under given conditions,
Pf = forward power dissipation, and
Pr = reverse power dissipation
This graph displays the derated allowable TJ due to reverse bias under DC conditions only and is calculated as TJ = TJmax – r(t)Pr,
where r(t) = Rthja. For other power applications further calculations must be performed.
Rtja = 118
°
C/W
180
°
C/W
149
°
C/W
206
°
C/W
228
°
C/W
Rtjl(t) = Rtjl*r(t)
50%
20%
10%
5.0%
2.0%
1.0%
1000.10.00001 1,0000.0001 0.001 0.01 1.0 10
Rtjl(t) = Rtjl*r(t)
50%
20%
10%
5.0%
2.0%
1.0%
TJ = 25
°
C
122
124
MBR0540T1
4Rectifier Device Data
RECOMMENDED FOOTPRINT FOR SOD–123
SOD–123
ÉÉÉÉ
ÉÉÉÉ
ÉÉÉÉ
ÉÉÉÉ
ÉÉÉÉ
ÉÉÉÉ
ÉÉÉÉ
ÉÉÉÉ
ÉÉÉÉ
ÉÉÉÉ
mm
inches
0.91
0.036
1.22
0.048
2.36
0.093
4.19
0.165
PACKAGE DIMENSIONS
CASE 425–04
ISSUE C
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
STYLE 1:
PIN 1. CATHODE
2. ANODE
ÂÂÂÂ
ÂÂÂÂ
ÂÂÂÂ
B
D
K
AC
E
J
1
2
H
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.055 0.071 1.40 1.80
B0.100 0.112 2.55 2.85
C0.037 0.053 0.95 1.35
D0.020 0.028 0.50 0.70
E0.004 ––– 0.25 –––
H0.000 0.004 0.00 0.10
J––– 0.006 ––– 0.15
K0.140 0.152 3.55 3.85
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
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must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
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