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(Created page with "How do MTBF figures relate to the percentage of items still working after a number of years. the tgable below provides the answer. {| {{table}} | align="center" style="backgr...")
 
 
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How do MTBF figures relate to the percentage of items still working after a number of years. the tgable below provides the answer.
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How do MTBF figures relate to the percentage of items still working after a number of years. the table below provides the answer.
  
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{| {{table}}
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{|  
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| align="center" style="background:#f0f0f0;"|'''Years/MTBF in 000'''
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| align="center" style="background:#f0f0f0;"|'''Years/MTBF in thousands of hours'''
 
| align="center" style="background:#f0f0f0;"|'''1'''
 
| align="center" style="background:#f0f0f0;"|'''1'''
 
| align="center" style="background:#f0f0f0;"|'''2'''
 
| align="center" style="background:#f0f0f0;"|'''2'''
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| align="center" style="background:#f0f0f0;"|'''15'''
 
| align="center" style="background:#f0f0f0;"|'''15'''
 
|-
 
|-
−
100||92%||84%||77%||70%||65%||59%||54%||50%||45%||42%||38%||35%||32%||29%||27%
+
| 100||92%||84%||77%||70%||65%||59%||54%||50%||45%||42%||38%||35%||32%||29%||27%
 
|-
 
|-
−
125||93%||87%||81%||76%||70%||66%||61%||57%||53%||50%||46%||43%||40%||37%||35%
+
| 125||93%||87%||81%||76%||70%||66%||61%||57%||53%||50%||46%||43%||40%||37%||35%
 
|-
 
|-
−
150||94%||89%||84%||79%||75%||70%||66%||63%||59%||56%||53%||50%||47%||44%||42%
+
| 150||94%||89%||84%||79%||75%||70%||66%||63%||59%||56%||53%||50%||47%||44%||42%
 
|-
 
|-
−
175||95%||90%||86%||82%||78%||74%||70%||67%||64%||61%||58%||55%||52%||50%||47%
+
| 175||95%||90%||86%||82%||78%||74%||70%||67%||64%||61%||58%||55%||52%||50%||47%
 
|-
 
|-
−
200||96%||92%||88%||84%||80%||77%||74%||70%||67%||65%||62%||59%||57%||54%||52%|-|-
+
| 200||96%||92%||88%||84%||80%||77%||74%||70%||67%||65%||62%||59%||57%||54%||52%
 
|-
 
|-
−
225||96%||93%||89%||86%||82%||79%||76%||73%||70%||68%||65%||63%||60%||58%||56%
+
| 225||96%||93%||89%||86%||82%||79%||76%||73%||70%||68%||65%||63%||60%||58%||56%
 
|-
 
|-
−
250||97%||93%||90%||87%||84%||81%||78%||76%||73%||70%||68%||66%||63%||61%||59%
+
| 250||97%||93%||90%||87%||84%||81%||78%||76%||73%||70%||68%||66%||63%||61%||59%
 
|-
 
|-
−
300||97%||94%||92%||89%||86%||84%||82%||79%||77%||75%||73%||70%||68%||66%||65%
+
| 300||97%||94%||92%||89%||86%||84%||82%||79%||77%||75%||73%||70%||68%||66%||65%
 
|-
 
|-
−
350||98%||95%||93%||90%||88%||86%||84%||82%||80%||78%||76%||74%||72%||70%||69%
+
| 350||98%||95%||93%||90%||88%||86%||84%||82%||80%||78%||76%||74%||72%||70%||69%
 
|-
 
|-
−
400||98%||96%||94%||92%||90%||88%||86%||84%||82%||80%||79%||77%||75%||74%||72%
+
| 400||98%||96%||94%||92%||90%||88%||86%||84%||82%||80%||79%||77%||75%||74%||72%
 
|-
 
|-
−
450||98%||96%||94%||93%||91%||89%||87%||86%||84%||82%||81%||79%||78%||76%||75%
+
| 450||98%||96%||94%||93%||91%||89%||87%||86%||84%||82%||81%||79%||78%||76%||75%
 
|-
 
|-
−
500||98%||97%||95%||93%||92%||90%||88%||87%||85%||84%||82%||81%||80%||78%||77%
+
| 500||98%||97%||95%||93%||92%||90%||88%||87%||85%||84%||82%||81%||80%||78%||77%
 
|-
 
|-
−
550||98%||97%||95%||94%||92%||91%||89%||88%||87%||85%||84%||83%||81%||80%||79%
+
| 550||98%||97%||95%||94%||92%||91%||89%||88%||87%||85%||84%||83%||81%||80%||79%
 
|-
 
|-
−
600||99%||97%||96%||94%||93%||92%||90%||89%||88%||86%||85%||84%||83%||82%||80%
+
| 600||99%||97%||96%||94%||93%||92%||90%||89%||88%||86%||85%||84%||83%||82%||80%
 
|-
 
|-
−
650||99%||97%||96%||95%||93%||92%||91%||90%||89%||87%||86%||85%||84%||83%||82%
+
| 650||99%||97%||96%||95%||93%||92%||91%||90%||89%||87%||86%||85%||84%||83%||82%
 
|-
 
|-
−
700||99%||98%||96%||95%||94%||93%||92%||90%||89%||88%||87%||86%||85%||84%||83%
+
| 700||99%||98%||96%||95%||94%||93%||92%||90%||89%||88%||87%||86%||85%||84%||83%
 
|-
 
|-
−
750||99%||98%||97%||95%||94%||93%||92%||91%||90%||89%||88%||87%||86%||85%||84%
+
| 750||99%||98%||97%||95%||94%||93%||92%||91%||90%||89%||88%||87%||86%||85%||84%
 
|-
 
|-
−
800||99%||98%||97%||96%||95%||94%||93%||92%||91%||90%||89%||88%||87%||86%||85%
+
| 800||99%||98%||97%||96%||95%||94%||93%||92%||91%||90%||89%||88%||87%||86%||85%
 
|-
 
|-
−
900||99%||98%||97%||96%||95%||94%||93%||93%||92%||91%||90%||89%||88%||87%||86%
+
| 900||99%||98%||97%||96%||95%||94%||93%||93%||92%||91%||90%||89%||88%||87%||86%
 
|-
 
|-
−
1000||99%||98%||97%||97%||96%||95%||94%||93%||92%||92%||91%||90%||89%||88%||88%
+
| 1000||99%||98%||97%||97%||96%||95%||94%||93%||92%||92%||91%||90%||89%||88%||88%
 
|-
 
|-
−
1100||99%||98%||98%||97%||96%||95%||95%||94%||93%||92%||92%||91%||90%||89%||89%
+
| 1100||99%||98%||98%||97%||96%||95%||95%||94%||93%||92%||92%||91%||90%||89%||89%
 
|-
 
|-
−
1200||99%||99%||98%||97%||96%||96%||95%||94%||94%||93%||92%||92%||91%||90%||90%
+
| 1200||99%||99%||98%||97%||96%||96%||95%||94%||94%||93%||92%||92%||91%||90%||90%
 
|-
 
|-
−
1300||99%||99%||98%||97%||97%||96%||95%||95%||94%||93%||93%||92%||92%||91%||90%
+
| 1300||99%||99%||98%||97%||97%||96%||95%||95%||94%||93%||93%||92%||92%||91%||90%
 
|-
 
|-
−
1400||99%||99%||98%||98%||97%||96%||96%||95%||95%||94%||93%||93%||92%||92%||91%
+
| 1400||99%||99%||98%||98%||97%||96%||96%||95%||95%||94%||93%||93%||92%||92%||91%
 
|-
 
|-
−
1600||99%||99%||98%||98%||97%||97%||96%||96%||95%||95%||94%||94%||93%||93%||92%
+
| 1600||99%||99%||98%||98%||97%||97%||96%||96%||95%||95%||94%||94%||93%||93%||92%
 
|-
 
|-
−
1800||100%||99%||99%||98%||98%||97%||97%||96%||96%||95%||95%||94%||94%||93%||93%
+
| 1800||100%||99%||99%||98%||98%||97%||97%||96%||96%||95%||95%||94%||94%||93%||93%
 
|-
 
|-
−
2000||100%||99%||99%||98%||98%||97%||97%||97%||96%||96%||95%||95%||94%||94%||94%
+
| 2000||100%||99%||99%||98%||98%||97%||97%||97%||96%||96%||95%||95%||94%||94%||94%
 
|-
 
|-
 
|  
 
|  
 
|}
 
|}
  
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[[Category:AlphaCom Hardware]]
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[[Category: AlphaCom Hardware]]

Latest revision as of 09:49, 9 February 2023

How do MTBF figures relate to the percentage of items still working after a number of years. the table below provides the answer.

Years/MTBF in thousands of hours 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
100 92% 84% 77% 70% 65% 59% 54% 50% 45% 42% 38% 35% 32% 29% 27%
125 93% 87% 81% 76% 70% 66% 61% 57% 53% 50% 46% 43% 40% 37% 35%
150 94% 89% 84% 79% 75% 70% 66% 63% 59% 56% 53% 50% 47% 44% 42%
175 95% 90% 86% 82% 78% 74% 70% 67% 64% 61% 58% 55% 52% 50% 47%
200 96% 92% 88% 84% 80% 77% 74% 70% 67% 65% 62% 59% 57% 54% 52%
225 96% 93% 89% 86% 82% 79% 76% 73% 70% 68% 65% 63% 60% 58% 56%
250 97% 93% 90% 87% 84% 81% 78% 76% 73% 70% 68% 66% 63% 61% 59%
300 97% 94% 92% 89% 86% 84% 82% 79% 77% 75% 73% 70% 68% 66% 65%
350 98% 95% 93% 90% 88% 86% 84% 82% 80% 78% 76% 74% 72% 70% 69%
400 98% 96% 94% 92% 90% 88% 86% 84% 82% 80% 79% 77% 75% 74% 72%
450 98% 96% 94% 93% 91% 89% 87% 86% 84% 82% 81% 79% 78% 76% 75%
500 98% 97% 95% 93% 92% 90% 88% 87% 85% 84% 82% 81% 80% 78% 77%
550 98% 97% 95% 94% 92% 91% 89% 88% 87% 85% 84% 83% 81% 80% 79%
600 99% 97% 96% 94% 93% 92% 90% 89% 88% 86% 85% 84% 83% 82% 80%
650 99% 97% 96% 95% 93% 92% 91% 90% 89% 87% 86% 85% 84% 83% 82%
700 99% 98% 96% 95% 94% 93% 92% 90% 89% 88% 87% 86% 85% 84% 83%
750 99% 98% 97% 95% 94% 93% 92% 91% 90% 89% 88% 87% 86% 85% 84%
800 99% 98% 97% 96% 95% 94% 93% 92% 91% 90% 89% 88% 87% 86% 85%
900 99% 98% 97% 96% 95% 94% 93% 93% 92% 91% 90% 89% 88% 87% 86%
1000 99% 98% 97% 97% 96% 95% 94% 93% 92% 92% 91% 90% 89% 88% 88%
1100 99% 98% 98% 97% 96% 95% 95% 94% 93% 92% 92% 91% 90% 89% 89%
1200 99% 99% 98% 97% 96% 96% 95% 94% 94% 93% 92% 92% 91% 90% 90%
1300 99% 99% 98% 97% 97% 96% 95% 95% 94% 93% 93% 92% 92% 91% 90%
1400 99% 99% 98% 98% 97% 96% 96% 95% 95% 94% 93% 93% 92% 92% 91%
1600 99% 99% 98% 98% 97% 97% 96% 96% 95% 95% 94% 94% 93% 93% 92%
1800 100% 99% 99% 98% 98% 97% 97% 96% 96% 95% 95% 94% 94% 93% 93%
2000 100% 99% 99% 98% 98% 97% 97% 97% 96% 96% 95% 95% 94% 94% 94%
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