El diodo Schottky o diodo de barrera Schottky, llamado así en honor del físico alemán Walter H. Schottky, es un dispositivo semiconductor que proporciona conmutaciones muy rápidas entre los estados de conducción directa e inversa (menos de 1ns en dispositivos pequeños de 5 mm de diámetro) y muy bajas tensiones umbral (también conocidas como tensiones de codo, aunque en inglés se refieren a ella como "knee", o sea, de rodilla). La tensión de codo es la diferencia de potencial mínima necesaria para que el diodo actúe como conductor en lugar de circuito abierto; esto, dejando de lado la región Zener, que es cuando existe una diferencia de potencial lo suficientemente negativa para que a pesar de estar polarizado en inversa éste opere de forma similar a como lo haría regularmente.
La limitación más evidente del diodo de Schottky es la dificultad de conseguir resistencias inversas relativamente elevadas cuando se trabaja con altos voltajes inversos pero el diodo Schottky encuentra una gran variedad de aplicaciones en circuitos de alta velocidad para computadoras donde se necesiten grandes velocidades de conmutación y mediante su poca caída de voltaje en directo permite poco gasto de energía, otra utilización del diodo Schottky es en variadores de frecuencia (inverters) para que la corriente que vuelve desde el motor al variador no pase por los transistores IGBT del chopper, lo cual conduciría a su rápido deterioro. Cuando el motor se comporta como generador, la corriente circula hacia el bus de continua a través de los diodos y no es absorbida por los IGBTs.
El diodo Schottky se emplea en varios circuitos integrados de lógica TTL. Por ejemplo los tipos ALS y AS permiten que los tiempos de conmutación entre los transistores sean mucho menores puesto que son más superficiales y de menor tamaño por lo que se da una mejora en la relación velocidad/potencia. El tipo ALS permite mayor potencia y menor velocidad que la LS, mientras que las AL presentan el doble de velocidad que las Schottky TTL con la misma potencia.
| Parte Nnmber | Fabricantes | Descripción |
|---|---|---|
| BAT54C-7 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAT54CDW | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAYS |
| BAT54CDW-7 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAYS |
| BAT54C-T1 | Won-Top Electronics | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAT54C-T3 | Won-Top Electronics | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAT54CW-T1 | Won-Top Electronics | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAT54CW-T3 | Won-Top Electronics | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAT54RCLT1 | Zowie Technology Corporation | SCHOTTKY BARRIER DIODE |
| BAS40-06HT1 | Leshan Radio Company | Comon Anode Schottky Barrier Diode |
| BAS40-06LT1 | Semiconductor | SCHOTTKY BARRIER DIODE |
| BAS40BRW | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAYS |
| BAS40DW-04 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAYS |
| BAS40DW-05 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAYS |
| BAS40DW-06 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAYS |
| BAS40L | Philips Semiconductors | Schottky barrier diode |
| BAS40TW | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE ARRAYS |
| BAS40W-04 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAS40W-04-7 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAS40W-05 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAS40W-05-7 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAS40W-06 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAS40W-06-7 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BAS40W-7 | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| BYG90-90 | Philips Semiconductors | Schottky barrier rectifier diode |
| ZHCS500 | Zetex Semiconductors | SILICON HIGH CURRENT SCHOTTKY BARRIER DIODE SuperBAT |
| ZHCS506 | Zetex Semiconductors | SILICON HIGH CURRENT SCHOTTKY BARRIER DIODE SuperBAT |
| ZHCS1000 | Zetex Semiconductors | SILICON HIGH CURRENT SCHOTTKY BARRIER DIODE SuperBAT |
| ZHCS1006 | Zetex Semiconductors | SILICON HIGH CURRENT SCHOTTKY BARRIER DIODE SuperBAT |
| ZHCS750 | Zetex Semiconductors | SILICON HIGH CURRENT SCHOTTKY BARRIER DIODE SuperBAT |
| ZHCS756 | Zetex Semiconductors | SILICON HIGH CURRENT SCHOTTKY BARRIER DIODE SuperBAT |
| RB501V-40 | Rohm | Schottky barrier diode |
| SN74S1050 | Texas Instruments | 12-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1050D | Texas Instruments | 12-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1050N | Texas Instruments | 12-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1051 | Texas Instruments | 12-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1051D | Texas Instruments | 12-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1051N | Texas Instruments | 12-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1051R | California Micro Devices Corp | 12-BIT SCHOTTKY BARRIER DIODE TERMINATOR |
| SN74S1051T | California Micro Devices Corp | 12-BIT SCHOTTKY BARRIER DIODE TERMINATOR |
| SN74S1052 | Texas Instruments | 16-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1052DW | Texas Instruments | 16-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1052N | Texas Instruments | 16-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1053 | Texas Instruments | 16-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1053DW | Texas Instruments | 16-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| SN74S1053N | Texas Instruments | 16-BIT SCHOTTKY BARRIER DIODE BUS-TERMINATION ARRAY |
| BAT14 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-013 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-03 | Siemens Semiconductor Group | Silicon Schottky Diode mixer application 12GHz Medium barrier type capacitance) |
| BAT14-033 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-03W | Siemens Semiconductor Group | Silicon Schottky Diode mixer application 12GHz Medium barrier type capacitance) |
| BAT14-043 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-063 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-073 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-093 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-098 | Siemens Semiconductor Group | Silicon Schottky Diode mixer application noise figure Medium barrier type) |
| BAT14-099 | Siemens Semiconductor Group | Silicon Dual Schottky Diode mixer application noise figure Medium barrier type) |
| BAT14-103 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-113 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| BAT14-123 | Siemens Semiconductor Group | HiRel Silicon Schottky Diode (HiRel Discrete Microwave Semiconductor Medium barrier diodes detector mixer applications) |
| KS823C04 | Fuji Electric | SCHOTTKY BARRIER DIODE |
| KS826S04 | Fuji Electric | SCHOTTKY BARRIER DIODE |
| RB400D | Micro Commercial Components | Volts Surface Mount Schottky Barrier Diode |
| KTX402U | KEC(Korea Electronics) | EPITAXIAL PLANAR TRANSISTOR SCHOTTKY BARRIER TYPE DIODE (GENERAL PURPOSE, VOLTAGE HIGH SPEED SWITCHING) |
| HRW0702A | Hitachi Semiconductor | Silicon Schottky Barrier Diode Rectifying |
| HRW0703A | Hitachi Semiconductor | Silicon Schottky Barrier Diode Rectifying |
| HSU227 | Hitachi Semiconductor | Silicon Schottky Barrier Diode High Speed Switching |
| HSU276 | Hitachi Semiconductor | Silicon Schottky Barrier Diode Mixer |
| HSU276A | Hitachi Semiconductor | Silicon Schottky Barrier Diode Mixer |
| TP801C04 | Fuji Electric | SCHOTTKY BARRIER DIODE |
| TP801C06 | Fuji Electric | SCHOTTKY BARRIER DIODE |
| TP802C04 | Fuji Electric | SCHOTTKY BARRIER DIODE |
| TP802C06 | Fuji Electric | SCHOTTKY BARRIER DIODE |
| TP802C09 | Fuji Electric | SCHOTTKY BARRIER DIODE |
| TP805C04 | Fuji Electric | SCHOTTKY BARRIER DIODE |
| BAT54L | Philips Semiconductors | Schottky barrier diode |
| LLSD101A | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| SD101AW | Diodes Incorporated | SCHOTTKY BARRIER SWITCHING DIODE |
| SD101AWS | Diodes Incorporated | SURFACE MOUNT SCHOTTKY BARRIER DIODE |
| HRW0502A | Hitachi Semiconductor | Silicon Schottky Barrier Diode Rectifying |
| HRW0503 | Hitachi Semiconductor | Silicon Schottky Barrier Diode Rectifying |
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