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[USB] USB 2.0 镀金厚度有什么要求

P:2008-03-18 13:52:08

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各大虾:USB 2.0 镀金厚度有什么要求?

single-crytal optical fiber - 单晶光纤 (0) 投诉

P:2008-03-19 12:22:00

2

度金,我是不知道,度SN我是知道!

polyvinylchloride - 聚氯乙烯 (0) 投诉

P:2008-03-19 20:12:06

3

下一个USB的规范,里面有接头镀层厚度的要求

shoestring - 细绳;电线;带状体 (0) 投诉

P:2009-03-31 14:06:06

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angle polished ferrule - 角形抛光套管 (0) 投诉

P:2009-03-31 16:22:20

5

沒有吧

blooming train - 粗轧机列 (0) 投诉

P:2009-04-03 15:26:56

6

15μ或30μ

carrier-frequency telephone cable - 载频电话电缆 (0) 投诉

P:2009-04-29 17:09:25

7

USB标准里有写的,好像不是15μ或30μ

cable insulation degradation diagnostic device - 电缆绝缘老化诊断装置 (0) 投诉

P:2009-04-29 20:50:51

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2.0   30u"

automatic close pack layer winding machine - 自动紧密绕线机 (0) 投诉

P:2009-04-30 10:15:20

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6.5.4.3 Plug (Male) Contact Materials
Substrate Material: 0.30 + 0.05 mm half-hard phosphor bronze.
Plating: Contacts are to be selectively plated.
A. Option I
1. Underplate: Minimum 1.25 micrometers (50 microinches) nickel. Copper over base material
is optional.
2. Mating Area: Minimum 0.05 micrometers (2 microinches) gold over a minimum of
0.70 micrometers (28 microinches) palladium.
3. Solder Tails: Minimum 3.8 micrometers (150 microinches) bright tin-lead over the
underplate.
B. Option II
1. Underplate: Minimum 1.25 micrometers (50 microinches) nickel. Copper over base material
is optional.
2. Mating Area: Minimum 0.05 micrometers (2 microinches) gold over a minimum of
0.75 micrometers (30 microinches) palladium-nickel.
3. Wire Crimp/Solder Tails: Minimum 3.8 micrometers (150 microinches) bright tin-lead over
the underplate.
C. Option III
1. Underplate: Minimum 1.25 micrometers (50 microinches) nickel. Copper over base material
is optional.
2. Mating Area: Minimum 0.75 micrometers (30 microinches) gold.
3. Solder Tails: Minimum 3.8 micrometers (150 microinches) bright tin-lead over the
underplate.

audio cable - 音频电缆 (0) 投诉

P:2009-04-30 10:17:00

10

是指这一条吗,那应该是0.75um

wire drawing coiler - 拉线成圈机 (0) 投诉

P:2010-03-30 11:56:10

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USB1.1----插头端子镀金15U"

USB2.0----插头端子镀金30U"

core tube - 模芯(挤出机的);芯管(光缆的) (0) 投诉

P:2010-04-06 21:28:39

12

去看SPEC吧,好象有几个option吧。

side-to-side far end crosstalk - 实线问的远端串音 (0) 投诉

P:2010-04-07 09:16:41

13

Thanks

multiparty line - 多用户合用线,同线 (0) 投诉

P:2020-04-01 14:42:48

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front door - 前门,正门(绞线机的) (0) 投诉

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