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

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

thermal resistance from junction to tie-point

25

K/W

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)

(CLAMPING

VOLTAGE)

REVERSE

SURGE

CURRENT

(max)

REVERSE

LEAKAGE

CURRENT

(max)

(V)

min.

(V)

(mA)

(V)

(A)

(

µA)