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| 型號： | HDSP-U0xx |
| 英文描述： | 8 mm (0.31 inch) Ultra Mini Seven Segment Displays(8 mm (0.31 英寸)袖珍型LED七段段碼顯示器) |
| 中文描述： | 8毫米（0.31英寸）超小型七段顯示器（8毫米（0.31英寸）袖珍型的LED七段段碼顯示器） |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 32K |
| 代理商： | HDSP-U0XX |
8 mm (0.31 inch) Ultra Mini
Seven Segment Displays
Reliability Data
Description
The following cumulative test
results have been obtained from
testing performed at Agilent
Technologies in accordance with
the latest revision of MIL- STD-
HDSP-U0xx Series
HDSP-U1xx Series
HDSP-U2xx Series
HDSP-U3xx Series
HDSP-U4xx Series
HDSP-U5xx Series
883. Agilent Technologies tests
parts at the absolute maximum
rated conditions recommended
for the device. The actual perfor-
mance you obtain from Agilent
parts depends on the electrical
and environmental characteristics
of your application but will
probably be better than the
performance outlined in Table 1.
Table 1. Life Tests Demonstrated Performance
Stress Test
Conditions
Total
Units
Tested
Total
F ailed
F ailure Rate
( % /1K Hours)
Test Name
Device Hrs.
MTBF
Operating Life
T
A
= 55
°
C
I
F
= rated
current
45,000
45
0
>45,000
<2.2
Point Typical
Performance
Failure Rate Prediction
The failure rate of a semiconduc-
tor device is determined by the
junction temperature of the
device. The relationship between
ambient temperature and actual
junction temperature is given by
the following:
T
J
(
°
C) = T
A
(
°
C) +
θ
JA
P
AVG
where
T
A
= ambient temperature in
°
C
θ
JA
= thermal resistance of
junction-to-ambient in
°
C/watt
P
AVG
= average power dissipated
in watts
The estimated MTBF and failure
rate at temperatures lower than
the actual stress temperature can
be determined by using an
Arrhenius model for temperature
acceleration. Results of such
calculations are shown in Table 2
using an activation energy of 0.43
eV (reference MIL-HDBK-217).
Example of Failure Rate
Calculation
Assume a device operating 8 hours/
day, 5 days/week. The utilization fac-
tor, given 168 hours/week is:
(8 hours/day) x (5 days/week) /
(168 hours/week) = 0.25
The point failure rate per year (8760
hours) at 55
°
C ambient temperature
is:
(<2.22% / 1K hours) x 0.25 x
(8760 hours/year) = 4.86% per year
Similarly, 90% confidence level failure
rate per year at 55
°
C ambient
temperature is:
(<5.11% / 1K hours) x 0.25 x
(8760 hours/year) = 11.1% per year
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HDSP-U1xx | 8 mm (0.31 inch) Ultra Mini Seven Segment Displays(8 mm (0.31 英寸)袖珍型LED七段段碼顯示器) |
| HDSP-U1XX | 8 mm (0.31 inch) Ultra Mini Seven Segment Displays |
| HDSP-U2xx | 8 mm (0.31 inch) Ultra Mini Seven Segment Displays |
| HDSP-U3xx | 8 mm (0.31 inch) Ultra Mini Seven Segment Displays |
| HDSP-U4xx | 8 mm (0.31 inch) Ultra Mini Seven Segment Displays |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HDSP-U101 | 功能描述:LED 顯示器和配件 Red 637nm .31in 7 Segment RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP-U101 | 制造商:Avago Technologies 功能描述:LED DISPLAY 0.31" RED |
| HDSP-U103 | 功能描述:LED 顯示器和配件 Red 637nm .31in 7 Segment RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP-U111 | 功能描述:LED 顯示器和配件 Red 637nm .31in 7 Segment RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
| HDSP-U111-EG000 | 制造商:Avago Technologies 功能描述: |
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