Diodes BAS21T - Manual

BAS21T
Document number: DS30264 Rev. 10 - 2
1 of 3
www.diodes.com
March 2009
© Diodes Incorporated
BAS21T
SURFACE MOUNT FAST SWITCHING DIODE
Features
•
Ultra-Small Surface Mount Package
• Fast Switching Speed
•
For General Purpose Switching Applications
• High
Conductance
•
Lead Free/RoHS Compliant (Note 3)
• "Green" Device (Notes 4 and 5)
Mechanical Data
• Case:
SOT-523
• Case Material: Molded Plastic, "Green" Molding Compound,
Note 5. 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: 0.002 grams (approximate)
Maximum Ratings
@T
A
= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Repetitive Peak Reverse Voltage V
RRM
250 V
Working Peak Reverse Voltage
DC Blocking Voltage V
RWM
V R
200 V
RMS Reverse Voltage V
R(RMS)
141 V
Forward Continuous Current (Note 1) I
FM
400 mA
Average Rectified Output Current (Note 1) I
O
200 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0 μs
@ t = 1.0s
I FSM
2.5
0.5
A
Repetitive Peak Forward Surge Current I FRM
625 mA
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 1) P D
150 mW
Thermal Resistance Junction to Ambient (Note 1) R θJA 833 °C/W
Operating and Storage Temperature Range T J , T STG
-65 to +150 °C
Electrical Characteristics
@T
A
= 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 2) V
(BR)R
250
⎯
V I
R
= 100
μA
Forward Voltage V
F
⎯
1.0
1.25
V
I
F
= 100mA
I
F
= 200mA
Reverse Current @ Rated DC Blocking Voltage (Note 2) I
R ⎯
100
15
nA
μA T
J
= 25 °C
T
J
= 100 °C
Total Capacitance C
T
⎯ 5.0 pF V
R
= 0, f = 1.0MHz
Reverse Recovery Time t rr
⎯ 50 ns
I F = I R = 30mA,
I
rr
= 0.1 x I
R
, R
L
= 100
Ω
Notes: 1. Device mounted on FR-4 PC board with recommended pad layout, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration pulse test used to minimize self-heating effect.
3. No purposefully added lead.
4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
5. Product manufactured with Date Code UO (week 40, 2007) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code UO are built with Non-Green Molding Compound and may contain Halogens or Sb
2
O
3
Fire Retardants.
TOP VIEW
SOT-523
Internal Schematic
TOP VIEW
Please click here to visit our online spice models database.