IXYS DSA2-18A, DSA2-16A, DSA2-12A, DS2-12A, DS2-08A Datasheet

DS 2
DSA 2

Rectifier Diode
Avalanche Diode

V

RSM

V

(BR)min

ÿ

① V

RRM

Standard Avalanche

V V V Types Types

900 800 DS

2-08A

1300 1300 1200 DS 2-12A DSA 2-12A
1700 1750 1600 DSA 2-16A
1900 1950 1800 DSA 2-18A

① Only for Avalanche Diodes

Symbol Test Conditions Maximum Ratings
I

F(RMS)

I

F(AV)M

P

RSM

I

FSM

2

t TVJ= 45°C t = 10 ms (50 Hz), sine 72 A2s

I

TVJ= T
T
T

= 45°C; R

amb

= 45°C; R

amb

VJM

= 30 K/W; 180° sine 3.6 A

thJA

= 1 1 5 K/W; 180° sine 1.2 A

thJA

DSA types, TVJ = 25°C, tp = 10 ms 2.5 kW
TVJ= 45°C; t = 10 ms (50 Hz), sine 120 A

VR= 0 t = 8.3 ms (60 Hz), sine 127 A
T

= T

VJ

VR= 0 t = 8.3 ms (60 Hz), sine 106 A

VJM

t = 10 ms (50 Hz), sine 100 A

VR= 0 t = 8.3 ms (60 Hz), sine 68 A2s
TVJ= T

VR= 0 t = 8.3 ms (60 Hz), sine 47 A2s

T

VJM

T

VJ

T

stg

VJM

t = 10 ms (50 Hz), sine 50 A2s

Weight 2.4 g

A

7A

180 °C

-40...+180 °C

-40...+180 °C

V

RRM

I

F(RMS)

I

F(AV)M

C

A

A = Anode C = Cathode

= 800-1800 V
= 7 A
= 3.6 A

Features

●

International standard package

●

Axial wire connexions

●

Planar glassivated chips

Applications

●

Low power rectifiers

●

Field supply for DC motors

●

Power supplies

●

High voltage rectifiers

Advantages

●

Space and weight savings

●

Simple PCB mounting

●

Improved temperature and power
cycling

●

Reduced protection circuits

Dimensions in mm (1 mm = 0.0394")

C

C

Symbol Test Conditions Characteristic Values
I

R

V

F

V

T0

r

T

R

thJA

d

S

d

A

a Max. allowable acceleration 100 m/s

Data according to IEC 60747
IXYS reserves the right to change limits, test conditions and dimensions

TVJ= 180°C; VR = V

RRM

IF= 7 A; TVJ = 25°C £ 1.25 V
For power-loss calculations only 0.85 V

TVJ= T
Forced air cooling with 1.5 m/s, T

Soldered between 2 cooling fins, T
Soldered onto PC board (25 mm), T
Free air cooling, T

VJM

= 45°C 30 K/W

amb

= 45°C 37 K/W

amb

= 45°C 75 K/W

= 45°C 115 K/W

amb

amb

Creepage distance on surface 2.25 mm
Strike distance through air 2.25 mm

£ 2mA

43 mW

© 2000 IXYS All rights reserved

2

A

1 - 2

DS 2
DSA 2

10

A

8

I

F

6

4

2

0

TVJ= 180°C
TVJ= 25°C

0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3

typ. lim.

V

F

Fig. 1 Forward characteristics

W

10

8

P

F

6

4

2

DC
180° sin
120°

60°
30°

100

A

80

I

FSM

60

40

20

0

-3

V

10

-2

10

50Hz, 80%V
T

= 45°C

VJ

T

= 180°C

VJ

-1

10

RRM

0

10
t

1

10

s

Fig. 2 Surge overload current

: crest value, t: duration

I

FSM

10

8

R

:

thJA

30 K/W
37 K/W
45 K/W
75 K/W

115 K/W

6

4

2

100

2

VR = 0 V

A

s

80

60

I2 t

TVJ=45°C

40

TVJ=180°C

20

10

23456789110

Fig. 3 I2t versus time (1-10 ms)

W

P

F

ms

t

0

0123456789

I

FAVM

20 40 60 80 100 120 140 160

A

0

Fig. 4 Power dissipation versus forward current and ambient temperature

100

°C/W

80

Z

(th)t

60

40

20

0

-3

10

-2

10

-1

10

0

10

1

10

2

10

Fig. 5 Transient thermal impedance junction to ambient

0

T

amb

°C

R

for various conduction angles d:

thJA

dR

thJA

(K/W)

DC 75
180° 75.7
120° 76.1

60° 76.7
30° 77.4

Constants for Z

iR

calculation:

thJA

(K/W) ti (s)

thi

1 0.15 0.001
2 10.85 0.1
364 35

3

10

t

4

s

10

© 2000 IXYS All rights reserved

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