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1N4448产品简介:
ICGOO电子元器件商城为您提供1N4448由Fairchild Semiconductor设计生产,在icgoo商城现货销售,并且可以通过原厂、代理商等渠道进行代购。 提供1N4448价格参考以及Fairchild Semiconductor1N4448封装/规格参数等产品信息。 你可以下载1N4448参考资料、Datasheet数据手册功能说明书, 资料中有1N4448详细功能的应用电路图电压和使用方法及教程。
ON Semiconductor品牌的1N4448是一款高速开关二极管,属于二极管-整流器-单类别。由于其快速的反向恢复时间(通常为4ns),该器件主要用于高频开关应用,而非大电流整流。典型应用场景包括: 1. 信号整流与检波:在通信设备和无线电接收电路中,用于高频信号的检波与解调,能有效处理小信号并保持良好的响应速度。 2. 开关电源中的钳位与保护:常用于开关电源(SMPS)中,作为电压钳位二极管,防止电感反冲电压损坏晶体管或集成电路。 3. 数字逻辑电路:在数字系统中用于电平移位、输入/输出保护及逻辑门电路中的噪声抑制。 4. 续流二极管(Flyback Diode):在继电器、电机驱动等感性负载电路中,提供反向电流泄放路径,保护控制元件。 5. 浪涌与静电保护:在敏感电子线路中,用于吸收瞬态电压脉冲,提升系统可靠性。 1N4448具有低正向压降(约0.7V)和高效率特点,适用于低电压、小电流环境。因其封装小巧(如DO-35或SOD-123),广泛用于消费电子、工业控制、汽车电子和通信模块中。虽然额定电流较小(平均整流电流约150mA),但其高速性能使其在模拟与数字混合电路中具有不可替代的作用。总体而言,1N4448是一款通用型高速开关二极管,适合对响应速度要求较高的精密电子系统。
| 参数 | 数值 |
| 产品目录 | |
| 描述 | DIODE SMALL SIG 100V 0.2A DO35二极管 - 通用,功率,开关 Hi Conductance Fast |
| 产品分类 | 单二极管/整流器分离式半导体 |
| 品牌 | Fairchild Semiconductor |
| 产品手册 | |
| 产品图片 |
|
| rohs | RoHS 合规性豁免无铅 / 符合限制有害物质指令(RoHS)规范要求 |
| 产品系列 | 二极管与整流器,二极管 - 通用,功率,开关,Fairchild Semiconductor 1N4448- |
| 数据手册 | |
| 产品型号 | 1N4448 |
| PCN封装 | |
| 不同If时的电压-正向(Vf) | 1V @ 100mA |
| 不同 Vr、F时的电容 | 2pF @ 0V,1MHz |
| 不同 Vr时的电流-反向漏电流 | 5µA @ 75V |
| 二极管类型 | 标准 |
| 产品 | General Purpose Diodes |
| 产品培训模块 | http://www.digikey.cn/PTM/IndividualPTM.page?site=cn&lang=zhs&ptm=356 |
| 产品种类 | 二极管 - 通用,功率,开关 |
| 供应商器件封装 | DO-35 |
| 其它名称 | 1N4448-ND |
| 包装 | 散装 |
| 单位重量 | 126 mg |
| 反向恢复时间(trr) | 4ns |
| 商标 | Fairchild Semiconductor |
| 安装类型 | 通孔 |
| 安装风格 | Through Hole |
| 封装 | Bulk |
| 封装/外壳 | DO-204AH,DO-35,轴向 |
| 封装/箱体 | DO-35 |
| 工作温度-结 | -65°C ~ 175°C |
| 工厂包装数量 | 2000 |
| 恢复时间 | 4 ns |
| 最大功率耗散 | 0.5 W |
| 最大工作温度 | + 175 C |
| 最大浪涌电流 | 4 A |
| 最小工作温度 | - 65 C |
| 标准包装 | 2,000 |
| 正向电压下降 | 1 V |
| 正向连续电流 | 0.3 A |
| 热阻 | 300°C/W Ja |
| 电压-DC反向(Vr)(最大值) | 100V |
| 电流-平均整流(Io) | 200mA |
| 系列 | 1N4448 |
| 速度 | 小信号 =< 200mA(Io),任意速度 |
| 配置 | Single |
| 零件号别名 | 1N4448_NL |
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OUTSTANDING SUPPORT AND SUPERIOR SERVICES PRODUCT SUPPORT Central’s operations team provides the highest level of support to insure product is delivered on-time. • Supply management (Customer portals) • Custom bar coding for shipments • Inventory bonding • Custom product packing • Consolidated shipping options DESIGNER SUPPORT/SERVICES Central’s applications engineering team is ready to discuss your design challenges. Just ask. • Free quick ship samples (2nd day air) • Special wafer diffusions • Online technical data and parametric search • PbSn plating options • SPICE models • Package details • Custom electrical curves • Application notes • Environmental regulation compliance • Application and design sample kits • Customer specific screening • Custom product and package development • Up-screening capabilities REQUESTING PRODUCT PLATING 1. If requesting Tin/Lead plated devices, add the suffix “ TIN/LEAD” to the part number when ordering (example: 2N2222A TIN/LEAD). 2. If requesting Lead (Pb) Free plated devices, add the suffix “ PBFREE” to the part number when ordering (example: 2N2222A PBFREE). CONTACT US Corporate Headquarters & Customer Support Team Central Semiconductor Corp. 145 Adams Avenue Worldwide Field Representatives: Hauppauge, NY 11788 USA www.centralsemi.com/wwreps Main Tel: (631) 435-1110 Main Fax: (631) 435-1824 Worldwide Distributors: Support Team Fax: (631) 435-3388 www.centralsemi.com/wwdistributors www.centralsemi.com For the latest version of Central Semiconductor’s LIMITATIONS AND DAMAGES DISCLAIMER, which is part of Central’s Standard Terms and Conditions of sale, visit: www.centralsemi.com/terms www.centralsemi.com (001)
PDN01021 2/23/16 8/23/16 http://www.centralsemi.com 2/23/17 Summary:The 1N4448 Series of silicon switching diodes is discontinued and now classified as End of Life (EOL). Although Central Semiconductor Corp. makes every effort to continue to produce devices that have been proclaimed EOL (End of Life) by various manufacturers, it is an accepted industry practice to discontinue certain devices when customer demand falls below a minimum level of sustainability. Accordingly, the following product(s) have been transitioned to End of Life status as part of Central's Product Management Process. Any replacement product will be noted below. The effective date for placing the last purchase order will be six(6) months from the date of this notice and twelve(12) months from the notice date for final shipments; this may be extended if inventory is available. C__en_t_r_al_ P_a_r_t_ N_u_m_b_e_r_ _ _ _ _ ___R___e_p_l_a_ce_m__en_t_ _ _ _ _ _ _ _ ________ 1N4446 BK 1N4148 BK 1N4446 TR 1N4148 TR 1N4448 BK 1N4148 BK 1N4448 TR 1N4148 TR 1N4449 BK 1N4148 BK Central would be happy to assist you by providing additional information or technical data to help locate an alternate source if we have no replacement available. Please email your requests to engineering@centralsemi.com.
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