Datasheet

UNISONIC TECHNOLOGIES CO., LTD
SB345
Preliminary
DIODE
SCHOTTKY BARRIER
RECTIFIER

1
DESCRIPTION
The UTC SB345 is a schottky barrier rectifier, it uses UTC’s
advanced technology to provide customers with low forward voltage
drop, high current capability and high efficiency, etc.

FEATURES
* Low forward voltage drop
* High current capability
* High surge capability
* Low power loss
* High efficiency

SYMBOL

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
SB345L-Z21D-B
SB345G-Z21D-B
Note: Pin Assignment: A: Anode
K: Cathode

2
Package
DO-201AD
Pin Assignment
1
2
K
A
DO-201AD
Packing
Tape Box
MARKING
Cathode Band for uni-directional Only
SB345
L: Lead Free
G: Halogen Free
Date Code
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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SB345

Preliminary
DIODE
ABSOLUTE MAXIMUM RATINGS
Single phase, half wave, 60Hz, resistive or inductive load rating at 25°C, unless otherwise stated.
PARAMETER
SYMBOL
RATINGS
UNIT
DC Blocking Voltage
VDC
45
V
Recurrent Peak Reverse Voltage
VRRM
45
V
RMS Voltage
VRMS
31.5
V
Average Forward Rectified Current 3/8" Lead Length
IO
3.0
A
Non-Repetitive Peak Forward Surge Current 8.3ms
Single Half Sine-Wave Superimposed on Rated Load
IFSM
100
A
(JEDEC Method)
Operating Junction Temperature
TJ
-65~+150
°C
Storage Temperature
TSTG
-65~+150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA
PARAMETER
Junction to Ambient (Note 2)

SYMBOL
θJA
RATINGS
50
UNIT
°C/W
ELECTRICAL CHARACTERISTICS
Single phase, half wave, 60Hz, resistive or inductive load rating at 25°C, unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Forward Voltage Drop
VF
IF=3.0A
0.50
V
DC Reverse Current at Rated DC
TA=25°C
0.5 mA
IR
Blocking Voltage
TA=100°C
10.0 mA
Junction Capacitance (Note 1)
CJ
220.0
pF
Notes: 1. Measured at 1.0MHz and applied reverse voltage of 4.0V DC.
2. Thermal Resistance from Junction to Ambient at 0.5" lead length, vertical P.C. Board Mounted.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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SB345
Preliminary
DIODE
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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