Datasheet PSMA20A, PSMA22A, PSMA24A, PSMA26A, PSMA45A Datasheet (Philips)

DATA SH EET

Product specification
Supersedes data of 1998 Dec 04

1999 Jan 26

DISCRETE SEMICONDUCTORS

PSMA8.5A to PSMA78A

Transient voltage suppressor
diodes

handbook, halfpage

M3D168

1999 Jan 26 2

Philips Semiconductors Product specification

Transient voltage suppressor diodes PSMA8.5A to PSMA78A

FEATURES

• Glass passivated

• High maximum operating

temperature

• Low leakage current

• Excellent stability

• UL 94V-O classified plastic

package

• Transient suppressor stand-off
voltage range: 8.5 to 78 V for
26 types

• Supplied in 12 mm embossed tape.

DESCRIPTION

DO-214AC surface mountable
package with glass passivated chip.

The well-defined void-free case is of a
transfer-moulded thermo-setting
plastic.

Fig.1 Simplified outline (DO-214AC; SOD106) and symbol.

handbook, 4 columns

MSA473

cathode
band

Top view Side view

ka

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS VALUE UNIT

P

RSM

non-repetitive peak reverse power
dissipation

10/1000 µs exponential pulse;
Tj=25°C prior to surge;
see Figs.3 and 5

400 W

1999 Jan 26 3

Philips Semiconductors Product specification

Transient voltage suppressor diodes PSMA8.5A to PSMA78A

ELECTRICAL CHARACTERISTICS
Total series

T

j

=25°C unless otherwise specified.

Per type

T

j

=25°C unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

F

forward voltage IF= 0.5 A − 1.2 V

T

stg

storage temperature −65 +175 °C

T

j

junction temperature −65 +175 °C

DEVICE
(note 1)

REVERSE

STAND-OFF

VOLTAGE

BREAKDOWN

VOLTAGE

REVERSE
VOLTAGE

(max)

@I

RSM

(CLAMPING

VOLTAGE)

REVERSE

SURGE

CURRENT

(max)

REVERSE
LEAKAGE
CURRENT

(max)

@V

RWM

V

RWM

(V)

V

BR

min.

(V)

I

T

(mA)

V

RSM

(V)

I

RSM

(A)

I

R

(µA)

PSMA8.5A

8.5

9.44

1

14.4 27.8

5.0

PSMA9.0A

9.0

10.0

1

15.4 26.0

2.5

PSMA10A

10

11.1

1

17.0 23.5

2.5

PSMA11A

11

12.2

1

18.2 22.0

2.5

PSMA12A

12

13.3

1

19.9 20.1

2.5

PSMA13A

13

14.4

1

21.5 18.6

2.5

PSMA14A

14

15.6

1

23.2 17.2

2.5

PSMA15A

15

16.7

1

24.4 16.4

2.5

PSMA16A

16

17.8

1

26.0 15.4

2.5

PSMA17A

17

18.9

1

27.6 14.5

2.5

PSMA18A

18

20.0

1

29.2 13.7

2.5

PSMA20A

20

22.2

1

32.4 12.3

2.5

PSMA22A

22

24.4

1

35.5 11.3

2.5

PSMA24A

24

26.7

1

38.9 10.3

2.5

PSMA26A

26

28.9

1

42.1 9.5

2.5

PSMA28A

28

31.1

1

45.4 8.8

2.5

PSMA30A

30

33.3

1

48.4 8.3

2.5

PSMA33A

33

36.7

1

53.3 7.5

2.5

1999 Jan 26 4

Philips Semiconductors Product specification

Transient voltage suppressor diodes PSMA8.5A to PSMA78A

Note

1. Tolerance and Voltage Designation: Tolerance designation - The type number listed indicates a tolerance of ±.5%

THERMAL CHARACTERISTICS

Notes

1. Device mounted on an Al

2O3

printed-circuit board, 0.7 mm thick; thickness of Cu-layer ≥35 µm, see Fig.4.

2. Device mounted on an epoxy-glass printed-circuit board, 1.5 mm thick; thickness of Cu-layer ≥40 µm, see Fig.4.

For more information please refer to the

‘General part of the associated handbook’

.

PSMA36A

36

40.0

1

58.1 6.9

2.5

PSMA40A

40

44.4

1

64.5 6.2

2.5

PSMA43A

43

47.8

1

69.4 5.8

2.5

PSMA45A

45

50.0

1

72.2 5.5

2.5

PSMA48A

48

53.3

1

77.4 5.2

2.5

PSMA51A

51

56.7

1

82.4 4.9

2.5

PSMA54A

54

60.0

1

87.1 4.6

2.5

PSMA58A

58

64.4

1

93.6 4.3

2.5

PSMA60A

60

66.7

1

96.8 4.1

2.5

PSMA64A

64

71.1

1

103.0 3.9

2.5

PSMA70A

70

77.8

1

113.0 3.5

2.5

PSMA75A

75

83.3

1

121.0 3.3

2.5

PSMA78A

78

86.7

1

126.0 3.2

2.5

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th j-tp

thermal resistance from junction to tie-point 25 K/W

R

th j-a

thermal resistance from junction to ambient note 1 100 K/W

note 2 150 K/W

DEVICE
(note 1)

REVERSE

STAND-OFF

VOLTAGE

BREAKDOWN

VOLTAGE

REVERSE
VOLTAGE

(max)

@I

RSM

(CLAMPING

VOLTAGE)

REVERSE

SURGE

CURRENT

(max)

REVERSE
LEAKAGE
CURRENT

(max)

@V

RWM

V

RWM

(V)

V

BR

min.

(V)

I

T

(mA)

V

RSM

(V)

I

RSM

(A)

I

R

(µA)

1999 Jan 26 5

Philips Semiconductors Product specification

Transient voltage suppressor diodes PSMA8.5A to PSMA78A

GRAPHICAL DATA

Fig.2 Maximum total power dissipation as a

function of temperature.

Solid line: tie-point temperature.
Dotted line: ambient temperature; device mounted on an Al2O

3

printed-circuit board as shown in Fig.4.

handbook, halfpage

0 200

4

0

2

1

3

MGR463

P

tot

(W)

100

T (°C)

Tj=25°C prior to surge.

Fig.3 Maximum non-repetitive peak reverse

power dissipation as a function of pulse
duration (exponential pulse).

handbook, halfpage

10

−2

10

2

10

3

10

4

10

−1

1

t2 (ms)

P

RSM

(W)

10

MGR465

Fig.4 Printed-circuit board for surface mounting.

Dimensions in mm.

MSB213

4.5

2.5

1.25

50

50

handbook, halfpage

MGD521

I

RSM

(%)

100

90

50

10

t

1

t

2

t

Fig.5 Non-repetitive peak reverse current pulse

definition.

In accordance with

“IEC 60-1, Section8”

.
t1=10µs.
t2= 1000 µs.

1999 Jan 26 6

Philips Semiconductors Product specification

Transient voltage suppressor diodes PSMA8.5A to PSMA78A

PACKAGE OUTLINE

REFERENCES

OUTLINE
VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

SOD106 97-06-09DO-214AC

0 2.5 5 mm

scale

Transfer-moulded thermo-setting plastic small rectangular surface mounted package;
2 connectors

SOD106

UNIT bA

1

cD

E

Q

mm

1.6

1.4

0.20.05

2.8

2.4

4.5

4.3

H

5.5

5.1

3.3

2.7

DIMENSIONS (mm are the original dimensions)

A

2.3

2.0

D

H

A

E

b

(1)

A

1

Q

c

Note

1. The marking band indicates the cathode.

1999 Jan 26 7

Philips Semiconductors Product specification

Transient voltage suppressor diodes PSMA8.5A to PSMA78A

DEFINITIONS

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

Internet: http://www.semiconductors.philips.com

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© Philips Electronics N.V. 1999 SCA61
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Printed in The Netherlands 135002/00/02/pp8 Date of release: 1999 Jan26 Document order number: 9397 750 05028