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图片源于供应商或网络,实物可能存在差异,请以实物为准

SM5819L2-TP

数量

单价

总价

¥ 2.479107

10+

¥ 1.495728

¥ 14.95728

100+

¥ 0.932971

¥ 93.2971

500+

¥ 0.685225

¥ 342.6125

1000+

¥ 0.604985

¥ 604.985

2000+

¥ 0.537305

¥ 1074.61

5000+

¥ 0.463676

¥ 2318.38

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购买数量

总价金额：￥ 2.479107

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样品申购

PDF描述：Rectifier Diode,

SM5819L2-TP 产品概述

一、产品简介

SM5819L2-TP 为美微科（MCC）推出的一款表面贴装肖特基整流二极管，额定直流整流电流为1A，直流反向耐压（Vr）为40V，适用于对正向压降和开关速度有较高要求的小功率电源和便携式电子设备。器件采用 DFN-1006-2 小型封装，适配高密度 PCB 设计。

二、电气性能要点

正向压降（Vf）：典型 600mV @ 1A，有利于降低功率损耗与功率器件温升。
反向电流（Ir）：60µA @ 40V（标称条件），需在高温或高电压工况下关注漏电增加。
非重复峰值浪涌电流（Ifsm）：10A，可承受短时间的浪涌/充电冲击。
额定整流电流：1A，工作结温范围：-55℃ ~ +150℃，适合宽温应用环境。

三、封装与热管理

DFN-1006-2 封装体积小，有利于空间受限的设计，但热阻相对较高。设计时应注意：

在 PCB 侧增加散热铜箔和反水域，尽量扩大焊盘和热过孔以降低结到环境的热阻。
按照典型回路功耗 Pd ≈ If × Vf 估算，1A 工作下约 0.6W 的耗散，需要合理的散热路径和降额设计。
推荐使用无铅回流焊工艺，参考 JEDEC/IPC 标准回流曲线进行焊接，以保证焊点可靠性。

四、典型应用场景

开关电源输入整流与续流保护（降压/升压 DC-DC）。
便携式设备与电池管理中的续流或防反接保护。
快速开关与低压差整流场合，需兼顾低正向压降与低反向恢复时间的电路。

五、可靠性与选型建议

反向泄漏随温度上升明显增加，在高温工作环境下应预留足够裕量或选择更高 Vr/更低 Ir 的器件。
当系统可能出现频繁冲击电流时，应核算 Ifsm 与峰值能量，以免超过器件极限。
如需符合特定认证（如 AEC-Q、RoHS 等），请在选型前核实厂方数据手册与检测报告。

六、采购与资料

器件型号：SM5819L2-TP；品牌：MCC（美微科）；封装：DFN-1006-2。建议在设计和采购前获取并仔细阅读厂方完整版数据手册与封装尺寸图，以确认焊盘布局、热性能和可靠性参数满足项目需求。

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/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Response.php ( 8.65 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/response/Html.php ( 0.97 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-trace/src/Html.php ( 4.49 KB )

CONNECT:[ UseTime:0.000670s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com;charset=utf8
SHOW FULL COLUMNS FROM `visit_log` [ RunTime:0.002260s ]
INSERT INTO `visit_log` SET `ip` = '216.73.217.177' , `useragent` = 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)' , `reffer` = '' , `host` = 'https://www.ic118.com/stock/detail_44079268.html' [ RunTime:0.004307s ]
SHOW FULL COLUMNS FROM `product_type` [ RunTime:0.001689s ]
SELECT `id`,`typeid`,`name`,`typestr` FROM `product_type` WHERE `id` NOT IN (11,12,13,14,15) AND `id` <= 750 [ RunTime:0.000581s ]
SHOW FULL COLUMNS FROM `o_cart` [ RunTime:0.002045s ]
SELECT COUNT(*) AS think_count FROM `o_cart` WHERE ( `userId` = 0 AND `visitIP` = '216.73.217.177' ) [ RunTime:0.005988s ]
SHOW FULL COLUMNS FROM `ad` [ RunTime:0.002030s ]
SELECT * FROM `ad` WHERE `isDisplay` = 1 [ RunTime:0.000311s ]
SHOW FULL COLUMNS FROM `stock` [ RunTime:0.004238s ]
SELECT `s`.*,`u`.`company`,`t`.`name` FROM `stock` `s` LEFT JOIN `user` `u` ON `u`.`id`=`s`.`userid` LEFT JOIN `product_type` `t` ON `t`.`id`=`s`.`categoryid` WHERE `s`.`id` = '44079268' LIMIT 1 [ RunTime:0.015646s ]
SHOW FULL COLUMNS FROM `stock_pra` [ RunTime:0.002482s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 44079268 [ RunTime:0.009967s ]
SHOW FULL COLUMNS FROM `stock_price` [ RunTime:0.001227s ]
SELECT * FROM `stock_price` WHERE `stockid` = 44079268 ORDER BY `minOrder` ASC [ RunTime:0.013894s ]
SHOW FULL COLUMNS FROM `stock_unitquantity` [ RunTime:0.004995s ]
SELECT * FROM `stock_unitquantity` WHERE `stockid` = 44079268 ORDER BY `unit` DESC [ RunTime:0.011207s ]
SHOW FULL COLUMNS FROM `stock_warehousequantity` [ RunTime:0.005534s ]
SELECT * FROM `stock_warehousequantity` WHERE `stockid` = 44079268 [ RunTime:0.010139s ]
SELECT `name` FROM `product_type` WHERE `id` = 0 LIMIT 1 [ RunTime:0.005506s ]
SELECT * FROM `stock_price` WHERE `stockid` = 44079268 ORDER BY `minOrder` ASC [ RunTime:0.000420s ]
CONNECT:[ UseTime:0.000635s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com_pdf;charset=utf8
select * from pdf where partno='SM5819L2-TP' and brandshort='MCC Micro Commercial Components' limit 1 [ RunTime:0.004440s ]
SHOW FULL COLUMNS FROM `stock_product_overview` [ RunTime:0.001570s ]
SELECT `memo` FROM `stock_product_overview` WHERE `memo` LIKE '%SM5819L2-TP%' LIMIT 1 [ RunTime:0.666468s ]
SHOW FULL COLUMNS FROM `pdf` [ RunTime:0.001623s ]
SELECT `id`,`partno`,`note`,`note_cn` FROM `pdf` WHERE `partno` = 'SM5819L2-TP' LIMIT 1 [ RunTime:0.015475s ]
SHOW FULL COLUMNS FROM `stock_pra_lib` [ RunTime:0.001526s ]
SELECT `pra` FROM `stock_pra_lib` WHERE ( ( `partno` = 'SM5819L2-TP' OR `brand` LIKE 'MCC (Micro Commercial Components)%' ) ) LIMIT 1 [ RunTime:0.018992s ]
SELECT `id` FROM `stock` WHERE `id` <> 44079268 AND `partno` = 'SM5819L2-TP' AND `lockUser` = 0 AND ( LOWER(brand) LIKE '%mcc%' ) [ RunTime:0.037441s ]
SHOW FULL COLUMNS FROM `icreplace` [ RunTime:0.002813s ]
SELECT `r`.*,`b`.`brandshort`,`b`.`brandcn` FROM `icreplace` `r` LEFT JOIN `stock_brand` `b` ON `b`.`id`=`r`.`icbrandid` WHERE `r`.`partno` = 'SM5819L2-TP' ORDER BY `r`.`id` DESC LIMIT 5 [ RunTime:0.003822s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `categoryid` = 0 AND ( `partno` > 'SM5819L2-TP' ) ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.037256s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `status` = 3 ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.008800s ]

1.132096s

SM5819L2-TP

购买数量

总价金额： ￥ 2.479107

推荐替代

PDF描述：Rectifier Diode,

SM5819L2-TP 产品概述

一、产品简介

二、电气性能要点

三、封装与热管理

四、典型应用场景

五、可靠性与选型建议

六、采购与资料

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总价金额：￥ 2.479107