THAT 300 Matched Transistor Array Shown, Available in 14 Pin DIP

That Corporation's THAT 300 NPN, THAT 320 PNP, and THAT 340 NPN-PNP quad transistor arrays are now available in small quantities at affordable prices. You no longer have to buy an entire tube  when you need just a few.

The THAT 300 series are large-geometry, 4-transistor, monolithic NPN and/or PNP arrays exhibiting both high speed and low noise, with excellent parameter matching between transistors of the same gender. With typical base-spreading resistances of 25 ohms for the PNP devices (30 ohms for the NPNs), their low voltage noise of under 1 nV/Hz^½, the 300 series are ideally suited for low-noise amplifier input stages, among other applications.

Fabricated in a dielectrically isolated, complementary bipolar process, each transistor is electrically insulated from the others by a layer of insulating oxide (and not the reverse-biased PN junctions used in conventional arrays) and exhibit inter-device crosstalk and DC isolation similar to that expected from discrete transistors. The resulting low collector-to-substrate capacitance produces a typical NPN fT of 350MHz (325 MHz for the PNPs). Substrate biasing is not required for normal operation though the substrate should be grounded to optimize speed and minimize crosstalk. 

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Does not include shipping or sales tax. Prices are in US dollars.

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For technical information on the 300 series, visit THAT Corporation's website