Darlington transistors enhance thermal stability in audio amps

Designed exclusively for audio amplifiers, the STD01N/P and STD02N/P Darlington transistors provide a built-in thermal compensation diode on the same die, eliminating any delay for thermal compensation operation and any delay between thermal sensing at the heat source and response at the compensation area. In addition, the transistors are claimed to achieve higher power levels through decreased thermal resistance, allowing them to withstand higher voltages than similar devices.
Maximum ratings for the STD01N/P include a V_CBO of 150 V, a collector current of 10 A, and a power dissipation of 100 W; the STD02N/P has a V_CBO of 150 V, a collector current of 12 A, and a power dissipation of 130 W. The transistors are available in a 5-pin TO-3P plastic package with pin 4 removed.

Product literature:
STD01N and STD01P datasheet (PDF)
STD02N and STD02P datasheet (PDF)

Allegro Microsystems, (508)853-5000, www.allegromicro.com