Diodes BAT400D User Manual
Bat400d, Features, Mechanical data

BAT400D
Document number: DS30182 Rev. 15 - 2
1 of 3
www.diodes.com
June 2008
© Diodes Incorporated
BAT400D
 
 
Features
•
Low Forward Voltage Drop
•
High Conductance
•
Lead, Halogen and Antimony Free, RoHS Compliant 
"Green" Device (Notes 3 and 4) 
•
Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
•
Case: SOT-23
•
Case Material: Molded Plastic. UL Flammability Classification 
Rating 94V-0 
•
Moisture Sensitivity: Level 1 per J-STD-020D
•
Terminals: Solderable per MIL-STD-202, Method 208
•
Lead Free Plating (Matte Tin Finish annealed over Alloy 42 
leadframe). 
•
Polarity: See Diagram
•
Marking Information: See Page 2
•
Ordering Information: See Page 2
•
Weight: 0.008 grams (approximate)
TOP VIEW
 
 
 
 
 
 
 
Top View
Device Schematic
Maximum Ratings
@T
A
= 25°C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load. 
For capacitance load, derate current by 20%. 
Characteristic
Symbol
Value
Unit
Peak Repetitive Reverse Voltage 
Working Peak Reverse Voltage 
DC Blocking Voltage 
V
RRM
V
RWM
V
R
40
V
RMS Reverse Voltage
V
R(RMS)
28
V
Average Rectified Current (Note 2)
I
O
0.5
A
Non-Repetitive Peak Forward Surge Current 
8.3ms Single half sine-wave superimposed on rated load 
I
FSM
3
A
Thermal Characteristics
Characteristic
Symbol
Value
Unit
Power Dissipation (see Figure 1) (Note 2)
P
D
480
mW
Typical Thermal Resistance, Junction to Ambient Air (Note 2)
R
θJA
286
°C/W
Operating and Storage Temperature Range
T
J
, T
STG
-40 to +125
°C
Electrical Characteristics
@T
A
= 25°C unless otherwise specified
Characteristic
Symbol
Min
Typ
Max
Unit
Test Condition
Reverse Breakdown Voltage (Note 1)
V
(BR)R
40
⎯
⎯
V
I
R
= 1mA
Forward Voltage
V
F
⎯
285 
480 
300 
550 
mV
I
F
= 10mA
I
F
= 500mA
Reverse Current (Note 1)
I
R
⎯ 
⎯ 
1.0 
2.0 
30 
50 
μA 
μA 
V
R
= 10V
V
R
= 30V
Total Capacitance
C
T
⎯ 
⎯ 
125
20
⎯ 
⎯ 
pF 
pF 
V
R
= 0V, f = 1.0MHz
V
R
= 10V, f = 1.0MHz
Notes:
1. Short duration pulse test used to minimize self-heating effect. 
2. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 
3. No purposefully added lead. Halogen and Antimony Free. 
4. Product manufactured with Data Code V9 (week 33, 2008) and newer are built with Green Molding Compound. Product manufactured prior to Date 
 Code V9 are built with Non-Green Molding Compound and may contain Halogens or Sb
2
O
3
Fire Retardants.
 
 
 
 
 
 
 
 
 
