1SS321
2001-06-07
1
TOSHIBA Diode Silicon Epitaxial Planar Type
1SS321
Low Voltage High Speed Switching
Low forward voltage : VF = 0.42V (typ.)
Low reverse current : IR = 500nA (max)
Small package : SC-59 (SOT-23MOD)
Maximum Ratings (Ta = 25°C)
Characteristic Symbol Rating Unit
Maximum (peak) reverse voltage VRM 12 V
Reverse voltage VR 10 V
Maximum (peak) forward current IFM 150 (*) mA
Average forward current IO 50 (*) mA
Surge current (10ms) IFSM 1000 (*) mA
Power dissipation P 150 mW
Junction temperature Tj 125 °C
Storage temperature Tstg −55∼125 °C
(*) Unit rating. Total rating = unit ra ting × 1.5.
Electrical Characteristics (Ta = 25°C)
Characteristic Symbol
Test
Circuit Test Condition Min Typ. Max Unit
VF (1) ― IF = 1mA ― 0.32 ―
VF (2) ― IF = 10mA ― 0.42 ―
Forward voltage
VF (3) ― IF = 50mA ― 0.63 1.00
V
Reverse current IR ― VR = 10V ― ― 500
nA
Total capacitance CT ― VR = 0, f = 1MHz ― 3.2 4.5 pF
Marking
Unit: mm
JEDEC SOT−23MOD
EIAJ SC−59
TOSHIBA 1−3G1F
Weight: 0.012g
1SS321
2001-06-07
2
1SS321
2001-06-07
3
• TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc..
• The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk.
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.
• The information contained herein is subject to change without notice.
000707EA
A
RESTRICTIONS ON PRODUCT USE
