美隆電子有限公司

Mayloon Electronic Co., Ltd.,

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Product Change Notification Letter

E-mail 列印

PNC

Product Change Notification Letter

Date: July 01, 2013

PCN #: 130701

To: All Affected Customers

Title: Mayloon Part Numbers – Changing LR12FTER007G to N-MLR12FDR007B

Affected Products: LR12FTER007G

Effective Date: Aug 01, 2013

We appreciate your use of Mayloon products. Our commitment in maintaining and improving processes is demonstrated by plans to enhance our product quality,

reliability and manufacturability. The purpose of this notice is to inform you of a product change.

Description & Purpose:

This update and upgrade relies on good quality and function from "E(100ppm)" to "D(50ppm)" to improve the product of quality.

This change will not affect product’s form, fit, function and reliability.

Reason for Change: Quality/Reliability

The new code of detail to show about an item

BEFORE

New

LR12FTER007G

N-MLR12FDR007B

N = 3W The supplementary one letter to represent it  power

LR = Metal Alloy Low Ohm Res.

MLR = Metal Alloy Low Ohm Res.

12 = 2512

12 = 2512

F = Tolerance 1%

F = Tolerance 1%

T = T/Reel packing

Omitted a word "T"

E = 100PPM

D = 50PPM(update and upgrade relies on good quality and function)

R = Resistance

R = Resistance

G = Green color

B = Black color (changing color from green to black)

Please refer datasheet at http://www.mayloon.com for detail if you need additional information.

最近更新在 週五, 17 二月 2017 09:13  
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Newsflash

半導體二極管基礎及檢測方法

半導體二極管基礎及檢測方法:

1.二極體的主要參數            
正向電流IF:在額定功率下,允許通過二極體的電流值。       
正向電壓降VF:二極體通過額定正向電流時,在兩極間所産生的電壓降。     
最大整流電流(平均值)IOM:在半波整流連續工作的情況下,允許的最大半波電流的平均值。  
反向擊穿電壓VB:二極體反向電流急劇增大到出現擊穿現象時的反向電壓值。    
正向反向峰值電壓VRM:二極體正常工作時所允許的反向電壓峰值,通常VRM爲VP的三分之二或略小一些。 
反向電流IR:在規定的反向電壓條件下流過二極體的反向電流值。       
結電容C:電容包括電容和擴散電容,在高頻場合下使用時,要求結電容小於某一規定數值。    
最高工作頻率FM:二極體具有單向導電性的最高交流信號的頻率。