Datasheet

UNISONIC TECHNOLOGIES CO., LTD
BYR79
DIODE
Preliminary
ULTRA FAST-RECOVERY
RECTIFIER DIODE

DESCRIPTION
The UTC BYR79 is a rectifier diode providing the designers with
ultra-fast switching and low switching loss. It features low forward
voltage drop, ultra fast reverse recovery times with very low stored
charge and soft-recovery characteristic.
The UTC BYR79 is suitable for switched-mode power supplies,
SRPS and high-frequency circuits.

FEATURES
* Low Switching Loss
* Low Forward Volt Drop
* Ultra-Fast Switching
* Soft Recovery Characteristic
* Low Thermal Resistance

SYMBOL

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
BYR79L-6-TA2-T
BYR79G-6-TA2-T
Note: Pin Assignment: A: Anode
K: Cathode

Package
TO-220-2
Pin Assignment
1
2
K
A
Packing
Tube
MARKING
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BYR79

DIODE
Preliminary
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Peak Repetitive Reverse Voltage
Crest Working Reverse Voltage
Continuous Reverse Voltage
SYMBOL
VRRM
VRWM
VR
Average Forward Current
IF(AV)
Repetitive Peak Forward Current
IFRM
Non-Repetitive Peak Forward
Current.
IFSM
CONDITIONS
RATINGS
600
600
600
UNIT
V
V
V
15
A
30
A
130
A
Square waveform;
δ=0.5; Tmb≦108°C
t=25μs; square waveform;
δ =0.5; Tmb≦108°C
t=10ms;sinusoidal waveform
143
Junction Temperature
TJ
150
Storage Temperature
TSTG
-40 ~ +150
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.

A
°C
°C
THERMAL DATA
PARAMETER
Junction to Ambient
Junction to Tab

t=8.3ms;sinusoidal waveform
SYMBOL
θJA
θJB
RATINGS
60
2.0
UNIT
K/W
K/W
ELECTRICAL CHARACTERISTICS (TJ =25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
IF =15A, TJ =150°C
1.0 1.2
V
Forward Voltage
VF
1.17 1.38 V
IF =15A, TJ =25°C
VR=600V,
5
50
µA
Reverse Current
IR
0.2 0.8 mA
VR=600V, TJ=100°C
Reverse Recovery Charge
Qr
IF =2A to VR ≥30V, dIF/dt =20A/μs, TJ=25°C
40
70
nC
Reverse Recovery Time
tRR
IF=10A to VR ≥30V, dIF/dt=100A/μs, TJ=25°C
50
60
ns
Note: Measured under pulse conditions to avoid excessive dissipation.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R601-028.d
BYR79

DIODE
Preliminary
TYPICAL CHARACTERISTICS
IF
IF
dIF
dIt
tRR
time
Qr
10
100
IR
Definition of tRR and Qr
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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