SDMP0340LT /LST /LCT /LAT
 
SURFACE MOUNT SCHOTTKY BARRIER DIODE 
 
 
Features Mechanical Data 
 Low Forward Voltage Drop  Case: SOT-523 
 Guard Ring Die Construction for Transient Protection  Case Material:  Molded Plastic.  UL Flammability Classification 
Rating: 94V-0 
 Ideal for Low Logic Level Applications  
 Moisture Sensitivity:  Level 1 per J-STD-020D 
 Low Capacitance  
 Terminals: Solderable per MIL-STD-202, Method 208 
 Lead Free/RoHS Compliant (Note 3) 
 Lead Free Plating (Matte Tin Finish annealed over Alloy 42 
Gree Device (Note 4 and 5)  
leadframe).  
 Polarity: See Diagrams Below 
 Marking Information: See Page 3 
 Ordering Information:  See Page 3 
 Weight: 0.002 grams (approximate) 
     
 
    
Top View 
SDMP0340LT SDMP0340LAT SDMP0340LCT SDMP0340LST 
 
Maximum Ratings  @T = 25C unless otherwise specified  
A
Characteristic Symbol Value Unit 
Peak Repetitive Reverse Voltage V
RRM 
Working Peak Reverse Voltage V 40 V 
RWM
DC Blocking Voltage 
V 
R
RMS Reverse Voltage V 28 V 
R(RMS)
Forward Continuous Current                                               (Note 1) 30 mA 
I 
FM
Non-Repetitive Peak Forward Surge Current @8.3ms 
200 mA 
I 
FSM
Single half sine-wave superimposed on rated load 
 
Thermal Characteristics    
Characteristic Symbol Value Unit 
Power Dissipation                                                                (Note 1) 150 mW 
P 
D
Thermal Resistance, Junction to Ambient                           (Note 1) R 833 C/W 
JA
Operating and Storage Temperature Range T T -40 to +125 C 
J, STG
 
Electrical Characteristics   @T = 25C unless otherwise specified 
A
Characteristic Symbol Min Typ Max Unit Test Condition 
Reverse Breakdown Voltage                                               (Note 2) 40 V 
V   I 10uA 
(BR)R R = 
Forward Voltage Drop V  290 370 mV I = 1mA 
F F
Leakage Current                                                                  (Note 2) I   1.0 A V = 10V 
R R
Total Capacitance C  2  pF V = 1V, f = 1.0 MHz 
T R 
Notes: 1.  Device mounted on FR-4 PC board with recommended pad layout, which can be found on our website at   
      
 
SDMP0340LT /LST /LCT /LAT
 
 
 
1
100m
T = 75C
A
10m
1m
100n
10n
1n
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
0 5 10 15 20 25 30 35
V , INSTANTANEOUS FORWARD VOLTAGE (V) V , INSTANTANEOUS REVERSE VOLTAGE (V)
F R
Fig. 1  Typical Forward Characteristics Fig. 2  Typical Reverse Characteristics
  
100 10
f = 1 MHz
5
10
2
1
0.5
1
0.2
0.1
0.1
0 510 15 0
4 812 16 20 24 28
V , DC REVERSE VOLTAGE (V)
R I , FORWARD CURRENT (mA)
F
Fig. 3  Total Capacitance vs. Reverse Voltage
Fig. 4  Typical Reverse Recovery Time Characteristics
 
 
250
 
200
150
100
50
0
025 75 125
50 100
T , AMBIENT TEMPERATURE (C)
A
Fig. 5 Power Derating Curve
 
 
 
2 of 4 July 2008
SDMP0340LT /LST /LCT /LAT 
 Diodes Incorporated 
www.diodes.com  
Document number: DS30266 Rev. 11 - 2 
 
P , POWER DISSIPATION (mW)
I, INSTANTANEOUS FORWARD CURRENT (A)
D
C , TOTAL CAPACITANCE (pF) F
T
t, REVERSE RECOVERY TIME (ns)
I, INSTANTANEOUS REVERSE CURRENT (A)
rr
R