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Specimen shape: Square strips 8 times longer than wider.

This varies as a function of the initial strain rate as given in table 1 of the test method.

Crosshead speed: Between 12,5 mm/min and 500 mm/min.

In some cases, the tensile properties need to be measured both in the machine and perpendicular to the machine direction since they can vary substantially from one orientation to the other. Micom offers ASTM D882 testing as part of its material testing offering ASTM D882 Typical Experimental Parameters

Thicker materials should be tested using ASTM D638. ASTM D882 can be used for testing materials thinner than 1mm in thickness. The samples are tested in specific conditions of pre-treatment, sample orientation, temperature, humidity, and rate of pulling. Cut samples need to be free of nicks and other cutting defects since they will have an important impact on the test results variation. No dumbbell shape is cut for materials of that thickness. The samples are cut in strips that minimally have to be eight times longer than wide. ASTM D882 is used to measure tensile properties including ultimate tensile strength, yield strength, elongation, tensile energy to break and tensile modulus of elasticity of thin plastic sheeting and films. The ASTM D882 tests the tensile properties of thin plastic sheeting. If you are designing a PCB or Perf board with this component then the following picture from the Datasheet will be useful to know its package type and dimensions.ASTM D882 Standard Test Method for Tensile Properties of Thin Plastic Sheeting The PNP transistor is the B772, complement to the D882. The second application is in a class AB amplifier.

A small capacitor added across the base resistor aids in fast turn-off. A base resistor is also added to limit the base current. In the case of inductive loads, a flyback diode is placed anti-parallel to the load to prevent voltage spikes from damaging the transistor. The other end of the load is connected to the supply. Here, the emitter is grounded, and the collector is connected to one end of the load. Two applications of the D882 are shown in the figure below. The D882 is an NPN transistor that is capable of handling voltages up to 30V and currents up to 3A, with a 6A peak for pulses less than 5ms. TIP31, BD679, BD136 Other NPN Transistors

Note: Complete technical details can be found in the D882 datasheet linked at the end of this page.

High current and voltage capability (30V, 3A).

It can also be mounted on a heatsink using the screw hole in the SOT-32 package.Ĭurrent through this terminal controls conduction between collector and emitter The D882 is a medium power NPN transistor that features a high collector-emitter breakdown voltage and medium current carrying capability.