Datasheet

UNISONIC TECHNOLOGIES CO., LTD
BYC20
DIODE
Preliminary
RECTIFIER DIODE,
HYPERFAST

DESCRIPTION
The UTC BYC20 is a rectifier diode. It provides the designers
with ultra-fast switching and low switching loss in associated
MOSFET.
The UTC BYC20 is ideally used in half-bridge lighting ballasts,
half-bridge/full-bridge switched mode power supplies and continuous
current mode (CCM) power factor correction (PFC).

FEATURES
* Low Reverse Recovery Current
* Ultra-Fast Switching
* Low Switching Loss In Associated MOSFET
* Low Thermal Resistance

SYMBOL

ORDERING INFORMATION
Ordering Number
Package
Lead Free
Halogen Free
BYC20L-TA2-T
BYC20G-TA2-T
TO-220-2
Note: Pin Assignment: A: Anode K: Cathode Tab: Mounting Base

Pin Assignment
1
2
Tab
K
A
K
Packing
Tube
MARKING
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BYC20

DIODE
Preliminary
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Peak Repetitive Reverse Voltage
VRRM
600
V
Crest Working Reverse Voltage
VRWM
600
V
square-wave pulse; δ =1.0;
VR
Reverse Voltage
500
V
TTab ≤100°C
square-wave pulse; δ =0.5;
IF(AV)
Average Forward Current
20
A
TTab ≤93°C
Repetitive Peak Forward
square-wave pulse; δ =0.5;
IFRM
40
A
Current
tP = 25µs, TTab ≤93°C
250
A
Non-Repetitive Peak Forward tP=10ms,sine-wave pulse;
IFSM
Current
tP=8.3ms,sine-wave pulse;
274
A
Operating Junction Temperature
TJ
150
°C
Storage Temperature
TSTG
-40 ~ +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
SYMBOL
θJA
θJB
Junction to Ambient
Junction to Tab

RATINGS
60
1.2
UNIT
K/W
K/W
ELECTRICAL CHARACTERISTICS (TJ =25°C, unless otherwise specified)
PARAMETER
SYMBOL
Forward Voltage
VF
Reverse Current
IR
Reverse Recovery Time
tRR
Peak Reverse Recovery Current
Forward Recovery Voltage
IRM
VFR
TEST CONDITIONS
MIN TYP MAX UNIT
1.54 1.97 V
IF =20A, TJ =150°C
IF =40A, TJ =150°C
1.95 2.34 V
IF =20A
1.89 2.9
V
VR=600V
16 200 µA
VR=500V, TJ=100°C
1.6 3.0 mA
35
55
ns
IF =1A, VR=30V, dIF/dt=50A/μs(Figure 1)
19
ns
IF=20A,VR=400V, dIF/dt=500A/μs TJ=25°C
(Figure 1)
TJ=100°C
32
40
ns
3.0 7.5
A
dIF/dt=50A/μs
IF=20A,VR=400V,
TJ=125°C (Figure 1)
dIF/dt=500A/μs
9.5 12
A
IF =20A, dIF/dt=100A/μs (Figure 2)
8
11
V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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BYC20

Preliminary
DIODE
TYPICAL CHARACTERISTICS
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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