尋356ohm 可變/固定電阻

logoff

必需356ohm, 超微型 (最好長0.5cm, thick
lionking32 發表於 2012-9-28 21:52

300R+56R   smd resistor in series.

Leopard

http://en.wikipedia.org/wiki/Surface-mount_technology#Packages
多數是用imperial(可能我是DIYer見識少)
少量依度應該有師兄可以幫你

補返句,原來是cm, 同超微型差好遠

eeek

thx
searched over the web, there are "XXXX" series resistors, what does the number means?
als ...
lionking32 發表於 2012-9-28 22:21

fyi, an example of surface mount resistor datasheet:
http://rohmfs.rohm.com/en/produc ... ip_resistor/mcr.pdf
page 3 有 mechanical size. HK 通常用 imperial 叫, e.g. 1206, 0805, 0603, 0402, 0201
注意每個 size 有功率和電壓限制 (see page 2)
唔 sure 華輝有無:
http://www.weclonline.com/tchi/p ... 3&s2c_code=0006

raywan

你可以買粒400ohm ,用個銼輕輕銼幾下個resistor,個電阻值會改變的

BEpsilon

300R+56R   smd resistor in series.
logoff 發表於 2012-9-28 22:11

Still will not be exactly 356 ohm, correct? ±10%?

meguro_

呢度有...
http://hongkong01.rs-online.com/ ... 92677633D4E4F4E4526

357Ohm, 0805, +-0.1%, 唔會差太遠
只不過9蚊粒, 5粒起........

CMS

呢度有...


357Ohm, 0805, +-0.1%, 唔會差太遠
只不過9蚊粒, 5粒起........
meguro_ 發表於 2012-9-29 00:35

要組成 356 ohm 唔太難吧 ...大把1% 細電阻
二粒唔得,三粒都可以

msc

你可以買粒400ohm ,用個銼輕輕銼幾下個resistor,個電阻值會改變的
raywan 發表於 28/9/2012 11:07 AM

電阻銼完後阻值會大咗掂可以由 400 ohm 去 356 ohm?