Thyristor Semiconductor Products Page 48 Thyristor

2014 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/14 Teccor brand Thyristors AN1006 Follow these rules to avoid destroying devices: of the device. minimum necessary to conduct the test. small steps. General Test Procedures Read all manuals before operating a curve tracer. Perform the following manufacturer's equipment check: 1. Turn on and warm up curve tracer, but turn off, or down, all power supplies. 2. Correctly identify terminals of the device to be tested. Refer to the manufacturer's guide if necessary. 3. Insert the device into the test fixture, matching the device and test terminals. 4. Remove hands from the device and/or close interlock cover. 5. Apply required bias and/or drive. 6. Record results as required. 7. Disconnect all power to the device before removing. Model 576 Curve Tracer Procedures The following test procedures are written for use with the model 576 curve tracer. (Figure AN1006.1) AN1006-16 and "Model 577 Curve Tracer Procedure required when using model 370 and 577 curve tracers. The standard 575 model lacks AC mode, voltage greater than 200 V, pulse operations, DC mode, and step offset controls. The 575 MOD122C does allow voltage up to 400 V, including 1500 V in an AC mode. Remember that at the time of design, the 575 was built to test only transistors and diodes. Some ingenuity, experience, and external hardware may be required to test other types of devices. For further information or assistance in device testing on Tektronix curve tracers, contact the Littelfuse Applications Engineering group. Thyristor and Rectifier Testing Using Curve Tracers (continued)

Previous Page
Next Page