Indice de fallas (ALM056S )

Written by: Newton C. Braga
Category: Banco de Informaciones - Almanaque

 

El índice de fallas (λ ) se define como la relación entre el número de componentes (n) que presentan defectos y el número de elementos (no) al comienzo del tiempo de operación multiplicado por el tiempo de operación (t)

    λ = no/(n x t)

Unidad: 1 fit = fallas por millones de horas

 

Valores típicos para componentes electrónicos:

Circuitos integrados digitales bipolares de silicio = 10

Circuitos analógicos bipolares (amplificadores operativos) = 10

Transistores de uso general de silicio = 5

Transistores de potencia de silicio = 100

Diodos de silicio = 3

Capacitores de tantalio = 10

Capacitores electrolíticos de aluminio = 20

Capacitores cerámicos = 10

Capacitores de papel = 2

Resistores de carbono mayor a 100k = 5

Resistores de carbono menores que 100k = 0,5

Resistores de película metálica = 0,2

Resistores de hilo = 10

Pequeños transformadores = 5

Bobinas de alta frecuencia = 1

Cristales = 10

LED (tiempo para reducir la luminosidad en 50%) = 500

Conexión soldada = 0,5

Conexión tipo wrap = 0,0025

Conexión crempada = 0,25

Contacto de acoplamiento = 0,3

 

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Buscador de Datasheets


N° de Componente 

Banco de Circuitos

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