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Bas521, Maximum ratings, Thermal characteristics – Diodes BAS521 User Manual

Page 2: Electrical characteristics

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BAS521

Document number: DS32175 Rev. 5 - 2

2 of 4

www.diodes.com

December 2012

© Diodes Incorporated

BAS521

Maximum Ratings

(@T

A

= +25°C, unless otherwise specified.)

Characteristic Symbol

Value

Unit

Repetitive Peak Reverse Voltage

V

RRM

300 V

Working Peak Reverse Voltage
DC Blocking Voltage

V

RWM

300 V

Forward Current (Note 6)

I

F

250 mA

Non-Repetitive Peak Forward Surge Current @ t = 1.0µs

I

FSM

4.5 A

Repetitive Peak Forward Current (Note 6)

I

FRM

1 A



Thermal Characteristics

Characteristic Symbol

Value

Unit

Power Dissipation (Note 6)

P

D

325 mW

Thermal Resistance Junction to Ambient Air (Note 6)

R

θJA

385

°C/W

Operating and Storage Temperature Range

T

J

, T

STG

-65 to +150

°C



Electrical Characteristics

(@T

A

= +25°C, unless otherwise specified.)

Characteristic Symbol

Min

Max

Unit

Test

Condition

Reverse Breakdown Voltage (Note 7)

V

(BR)R

300

V

I

R

= 100

μA

Forward Voltage

V

F

1.1 V

I

F

= 100mA

Reverse Current (Note 7)

I

R

50

150
100

nA
nA

μA

V

R

= 5V

V

R

= 250V

V

R

= 250V, T

J

= +150

°C

Total Capacitance

C

T

5 pF

V

R

= 0, f = 1.0MHz

Reverse Recovery Time

t

rr

50 ns

I

F

= I

R

= 30mA,

I

rr

= 0.1 x I

R

, R

L

= 100

Ω

Notes:

6. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com.
7. Short duration pulse test used to minimize self-heating effect.



0

125

175

350

100

200

0

T , AMBIENT TEMPERATURE ( C)

Fig. 1 Power Derating Curve, Total Package

A

°

P

,

P

O

WE

R

DIS

S

IP

A

T

IO

N (

m

W

)

D

25

100

50

75

150

50

150

250

300

Note 6

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6 1.8

V , INSTANTANEOUS FORWARD VOLTAGE (V)

Fig. 2 Typical Forward Characteristics, Per Element

F

0.1

1

10

100

1,000

I,

I

N

S

T

A

N

T

A

N

E

O

U

S

F

O

R

WA

R

D

C

U

R

R

E

N

T

(mA

)

F