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U1GU44
TOSHIBA SUPER FAST RECOVERY RECTIFIER SILICON DIFFUSED TYPE
U1GU44
SWITCHING MODE POWER SUPPLY APPLICATIONS
Unit: mm
l Repetitive Peak Reverse Voltage : VRRM = 400 V
l Average Forward Current
: IF (AV) = 1.0 A
l Very Fast ReverseRecovery Time : trr = 100 ns (Max)
l Surface Mounting Plastic Mold Package
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC
Repetitive Peak Reverse Voltage
Average Forward Current
Peak One Cycle Surge Forward
Current (NonRepetitive)
Junction Temparature
Storage Temparature Range
SYMBOL
VRRM
IF (AV)
IFSM
Tj
Tstg
RATING
400
1.0
15 (50 Hz)
17 (60 Hz)
40~150
40~150
UNIT
V
A
A
°C
°C
ELECTRICAL CHARACTERISTICS (Ta = 25°C)
JEDEC
JEITA
TOSHIBA
Weight: 0.06g
34D1A
CHARACTERISTIC
Peak Forward Voltage
Repetitive Peak Reverse Current
Reverse Recovery Time
Forward Recovery Time
SYMBOL
TEST CONDITION
VFM
IRRM
trr
tfr
IFM = 1.0 A
VRRM = 400 V
IF = 1 A, di / dt = 30 A / µs
IF = 1.0 A
MIN TYP. MAX UNIT
― ― 1.5 V
― ― 50 µA
― ― 100 ns
― ― 250 ns
STANDARD SOLDERING PAD MARKING
1 2001-07-11

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U1GU44
RESTRICTIONS ON PRODUCT USE
000707EAA
· 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.
3 2001-07-11