Datasheet

UNISONIC TECHNOLOGIES CO., LTD
US1D
Preliminary
DIODE
SURFACE MOUNT ULTRA FAST
RECTIFIER

DESCRIPTION
+
The UTC US1D is a surface mount ultra fast rectifier, it uses
UTC’s advanced technology to provide customers with ultra fast
switching, high forward surge current and low reverse leakage, etc.
The UTC US1D is suitable for surface mounted applications.

SMA
(JEDEC DO-214AC)
FEATURES
* Ultra fast switching for high efficiency
* Low reverse leakage
* High forward surge current capability

SYMBOL

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
US1DL-SMA-R
US1DG-SMA-R
Note: Pin Assignment: A: Anode
K: Cathode

Package
SMA
Pin Assignment
1
2
K
A
Packing
Tape Reel
MARKING INFORMATION
PACKAGE
MARKING
SMA
UTC
US1D
Cathode Band for
uni-directional Only
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
Date Code
L: Lead Free
G: Halogen Free
1 of 3
QW-R601-223.a
US1D

Preliminary
DIODE
ABSOLUTE MAXIMUM RATINGS
Ratings at 25°C ambient temperature unless otherwise specified.
Single phase half-wave 60Hz, resistive or inductive load, for capacitive load current derate by 20%.
PARAMETER
SYMBOL
RATINGS
UNIT
Repetitive Peak Reverse Voltage
VRRM
200
V
RMS Voltage
VRMS
140
V
DC Blocking Voltage
VDC
200
V
Average Forward Rectified Current at TL=55°C
I(AV)
1.0
A
Peak Forward Surge Current 8.3ms Single Half
Sine-Wave Superimposed on Rated Load
IFSM
30.0
A
(JEDEC Method)
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 3)

SYMBOL
θJA
RATINGS
50
UNIT
°C/W
ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Single phase half-wave 60Hz, resistive or inductive load, for capacitive load current derate by 20%.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Instantaneous Forward Voltage
VF
IF=1.0A
1.0
V
TA=25°C
5.0
μA
DC Reverse Current at Rated DC Blocking
IR
Voltage
TA=100°C
50.0 μA
Reverse Recovery Time (Note 1)
trr
50
ns
Junction Capacitance (Note 2)
CJ
15.0
pF
Notes: 1. Reverse recovery condition IF=0.5A, IR=1.0A, Irr=0.25A.
2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
3. P.C.B. mounted with 0.2x0.2”(5.0x5.0mm) copper pad areas.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 3
QW-R601-223.a
US1D
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
3 of 3
QW-R601-223.a
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