Transistor Arrays

When it comes to matched transistor arrays, you're not likely to find any better than THAT Corporation's 300 series. These 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. Their low base-spreading resistances and voltage noise under 1nV/√Hz make the 300 series ideal for low-noise amplifier input stages, among other applications.

They are fabricated in a dielectrically isolated (DI), complementary bipolar process, where 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). Consequently, the THAT300 series exhibit inter-device crosstalk and DC isolation similar to that expected from discrete transistors - perfect for audio applications!

The THAT300s are available in standard gain (typ 100) and also higher gain versions of 150+ and 300+.


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Part Number Package Part status Availability Price
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DescriptionTechnical detailsManufacturerPurchase
THAT300AS14-U THAT300AS14-USOIC-14
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1+ £ 6.65
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100+ £ 4.13
4 matched NPN Transistors(SM pack)THAT300THATBUY
THAT300BS14-U THAT300BS14-USOIC-14
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1+ £ 6.65
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4 matched NPN Transistors(SM pack) THAT300THATBUY
THAT300P14-U THAT300P14-UDIP-14
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179
1+ £ 6.83
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4 matched NPN Transistors(DIP Pack)THAT300THATBUY
THAT300S14-U THAT300S14-USOIC-14
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162
1+ £ 5.93
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THAT320P14-U THAT320P14-UDIP-14
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1+ £ 6.83
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4 matched PNP Transistors(DIP Pack)THAT320THATBUY
THAT320S14-U THAT320S14-USOIC-14
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109
1+ £ 5.93
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THAT340P14-U THAT340P14-UDIP-14
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1+ £ 6.83
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2 matched NPN 2 matched PNP Transistors(DIP Pack)THAT340THATBUY
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2 matched NPN 2 matched PNP Transistors(SM Pack)THAT340THATBUY