HCTF Series

www.vishay.com

Vishay Beyschlag

Revision: 10-Apr-13

3

Document Number: 28798

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

FUNCTIONAL PERFORMANCE

Current Rating Factor vs. Ambient Temperature



amb

Note

• The current rating factor depends on the mounting and environmental conditions. The power dissipation on the thermal fuse generates a

temperature rise against the local ambient, depending on the heat flow supported by additional conductive materials as electrical wires, lead

frames or other electrical connections (thermal resistance). Please contact the factory (please refer to e-mail contact below) for support and

further technical details.

TESTS AND REQUIREMENTS

All tests are carried out in accordance with the following test

procedures and specifications:

IEC 60115-1

ICE 60068-1

IEC 61340-3-1

MIL-STD-202

The tests are carried out under standard atmospheric

conditions in accordance with IEC 60068-1, 5.3.

Unless otherwise specified the following values apply:

Temperature: 15 °C to 35 °C

Relative humidity: 25 % to 75 %

Air pressure: 86 kPa to 106 kPa (860 mbar to 1060 mbar).

- 20

Ambient Temperature

ϑ

- 40

180

- 60

0

20

40

60

80

100 120 140 160

0

110

10

100

90

80

70

60

50

40

30

20

120

TEST PROCEDURES AND REQUIREMENTS

EN 60115-1



CLAUSE

IEC 60068-2

TEST

METHOD

TEST

PROCEDURE

REQUIREMENTS

4.25.3

-

Endurance

Unpowered;

160 °C; 1000 h

R

 0.2 m

--

Operational life acc. to

MIL-STD-202

METHOD 108A

55 A;

1000 h;

case temperature max. 160 °C

R

 0.2 m

4.19

14 (Na)

Rapid change of

temperature

10 min at - 55 °C and

10 min at 155 °C;

transition time < 10 s;

1000 cycles

R

 0.2 m

4.23.6

30 (Db)

Damp heat, cyclic

55 °C; 5 days > 90 % RH;

5 cycles

R

 0.2 m

-

27 (Ea)

Mechanical shock

Half sine pulse shape;

6 ms;

peak acceleration 100 g;

3 shocks in both directions

of each axis

R

 0.2 m