DN8.4-FDN-400T
-- 四脚弹片 FDN --产品规格参数
图纸
实体
| 项目名称 | 描述 | 项目名称 | 描述 |
|---|---|---|---|
| A直径(mm) | 8.4 | 产品型号 | DN8.4-FDN-400T |
| 材料 | 双面镀镍 | 荷重(g) | 56656265666566 |
| 荷重公差(g) | 5e3d6c3c6f6d6d6d6e | 寿命(次数) | 1,000,000 |
| 材料厚度(mm) | 2a191a184f191b | B宽度(mm) | 4c7f7e |
| C高度(mm) | 310201035402040204520353000201035402010204 | E点深度(mm) | 370407055204070405540555060407055204070406 |
| F点直径(mm) | 3300030156000b50015102000301560002 | 手感(%) | 31 |
尺寸公差 (mm)
x.x: ±0.1 x.xx: ±0.05 (材料厚度和有公差的参数除外)常用链接
单位换算 常见问题 产品展示 产品分类检索 产品尺寸索引 全能搜索相同尺寸 本系列其他弹片规格列表
| 荷重 (g) | 型号 | 荷重 (g) | 型号 |
|---|---|---|---|
| 150 | DN8.4-FDN-150T SG8.4-FDN-150T 8.4-FDN-150T | 180 | DN8.4-FDN-180T SG8.4-FDN-180T 8.4-FDN-180T |
| 220 | DN8.4-FDN-220T 8.4-FDN-220T | 230 | SG8.4-FDN-230T |
| 250 | DN8.4-FDN-250T | 280 | DN8.4-FDN-280T SG8.4-FDN-280T 8.4-FDN-280T |
| 340 | DN8.4-FDN-340T SG8.4-FDN-340T 8.4-FDN-340T | 450 | DN8.4-FDN-450T |
不同材料比较
| 功能\材料 | 1d78297f2525797824242925257824242f7c2f | 462372247e7e22237f7f727e7e237f7f742774747e23737e207e25237f7f222774237f7f737e76237f7f737e22747f | 4f2a7b2d77772b2a76767b77772a76767d2e7d7d772a7a772b767a2a76762b2e7d2a76767a777f2a767778767e7d76 |
|---|---|---|---|
| 表面处理 | 无 | 双面镀镍 | 先双面镀镍,再单面镀金 |
| 耐腐蚀 | 一般 | 比较好 | 好 |
| 导电性能 | 一般 | 比较好 | 好 |
| 电阻 | 小于100欧姆 | 小于1欧姆 | 小于0.1欧姆 |
| 适用行业 | 消费电子 | 工业、仪器、设备 | 汽车、航空、医疗、银行 |
| 成本 | 一般 | 高 | 非常高 |
若最终的产品对弹片的阻值要求比较高,建议使用不锈钢(双面镀镍)或者不锈钢(单面镀金)材料。
荷重测试
常用荷重(压力)测试头
除了特别指定外,默认荷重(压力)测试头的尖头(0.3mm)尺寸如下图所示。
PCB参考
PCB 布线建议:
单面板、双面板
| 名称 | 描述/规格/参数 |
|---|---|
| 触电布置 | SPST N.O |
| 开关/工作电压 | 0.1 to 50电压(直流) V DC |
| 开关功率 | 1 瓦Watt |
| 开关电流 | 0.005 to 100毫安(直流) mA DC |
| 接触电阻 | 单面镀金 <0.10 欧姆ohm, 双面镀镍 <1 欧姆ohm, 不锈钢 <100 欧姆ohm |
| 回弹时间 | <0.3毫秒ms |
| 触点时间 | <0.6毫米ms |
| 工作温度 | -40 摄氏度degrees C to +100 摄氏度degrees C |
| 存储温度 | -55 摄氏度degrees C to +100 摄氏度degrees C |
以上所列数值是标准数值参考,这些数值主要取决于在最终产品上实际组装的状况。
使用方法
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产品简介
金属弹片 ( 又称锅仔片或metal dome, snap dome ) , ( 因为其开关像倒扣过来的锅,故俗称 锅仔片, 或' 锅子片' ) , 英文 metal dome , 采用不锈钢制成, 是开关上的一个重要组成部分,借助于金属弹片的的导通性,在使用者和产品之间起到一个优质的开关的作用。同时,利用金属弹片的稳定回弹力(按下后自动复位),其特点超长的寿命,给使用者提供优质的触觉反馈。金属弹片所使用的材料比较薄 ( 通常使用 0.05mm ~ 0.15mm ) 不锈钢钢带( 钢材牌号通常使用301或者304 ),金属弹片是开关上的一个重要的组成部分。
金属弹片主要应用于薄膜开关、接触开关、PCB板、FPC板,医疗器械等产品中。金属弹片的工作原理:薄膜按键上的金属弹片位于PCB板上的导电部位( 大部分位于线路板上的金手指上方 ),当受到按压时,弹片的中心点下凹,接触到PCB上的线路,从而形成回路,电流通过,整个产品就得以正常工作。
弹片采用进口不锈钢材料,此材料含碳量低(0.08%),抗氧化度高, 本产品品质优良,性能好。产品通过SGS认证,提供可靠的质量保证,符合欧盟REAH法规和RoHS指令,产品符合环保要求。
金属弹片(锅仔片)的工作原理
2b4e12131c121a4e1e491a124e4e1e494849124e1c1312131c4e1c124a131f4e1e491c4a1e4e1f494f12484e1e134e124d4e1c121b131d4e4d4948124a4e13121d131f4e13131d12484e1d134813124e12121f4a4e4e1f4913134a4e1c124a131f4e12131c121a4e1e491a124e4e1e494849124e1c1312131c4e1f494f134f4e1f494a134e1e1b1f181f194e1d124f494d4e1f4913134a4e1c124a131f4e1e4a4d49484e1c121f491e4e1213184a134e1f494f134f19134e1e4a1f4a1c4e1213184a134e1e1313131d4e1f494f134f4e1f494a134e4e1c494a494d4e13491c4a4d4e1d124f494d4e1f4913134a4e1c124a131f4e12131c121a4e1d131213494e1d1348131c4e1f4913134a4e1d121d49124e4d494813124e4d494813484e1e494f12184e1e134d121c4e1e1313491b4e1d134813124e1e134e13494e1d121c491d4e4d494813484e1e494849124e1c1312131c4e1c124a131f4e1f49134a4f4e1e494d13184e1c131949124e1f491313494e1e131c49124e4d494813484e1d134e4a1e4e134a1c4a1d4e1e1313491b1e1b1f181f194e1f4913134a4e1c124a131f4e1c494a494d4e13491c4a4d19484e1f4949134e4e13131b13484e1e494f4a194e1d1313121b4e1e1249124e4e13491c4a4d4e4d494813484e1c121f491e4e1d491e131a4e12131b124a4e13494d131c4e4d494813484e1d121e491f4e1f49134a4a4e1f494a4a1c4e1e1218131a4e1e491b491a4e1e494e121c4e1f49494a1e4e1d4a4f4a184e1e491349134e1e491c4a1e4e1f494f12484e18131b1319194e194e194e
常见弹片的包装形式如下:
- 弹片散包装袋: 弹片(锅仔片)主要包装形式
- 弹片贴纸: 快速组装、节省人工、提高效率
- 弹片编带装 : 用于SMD自动化上料贴片

行业应用
广泛应用于手机、数码相机、电话、MP3以及其它数码产品等,金属弹片(锅仔片)是在生活中无处不在的,比如您的手机按键,做饭的电磁炉按键、各类家用电器、各种健身电子器材、各类电器、电子设备、仪表仪器等。各类行业应用仅罗列常用用途如下:
- 各类遥控器:如门禁密码锁、电子密码器、ATM机、数据采集器、金属键盘、保险箱、手机、电子秤、POS机等
- 各类键盘:如电视遥控器、空调遥控器、工业设备遥控器、汽车遥控钥匙等。
- 各类电器、电子玩具、健身电子器材:如跑步机、电饭煲、微波炉、洗衣机、电磁炉、VCD/DVD、电视机、MP3、录音笔、电子手表、蓝牙音箱等。
- 各类电子设备、仪表、仪器、医疗设备及仪表:如电子压力计、电子血压计、电子血糖计等。
产品规格书 文档下载:
产品规格书-
1
产品咨询和产品选型
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2
样品测试和样品确认
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3
订单采购和生产排期
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4
产品交货和售后服务
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