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NC7SB3157P6X

SPDT 模拟开关/多路复用器、1.65-5.5V、3-7Ohm Ron、250MHz BW、先断后连、SC-70-6、T&R

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制造商零件：

NC7SB3157P6X

包装：

SC-70-6 / SC-88 / SOT-363（2.0 x 1.25 x 0.95 毫米，0.65 毫米间距）

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说明

Onsemi（前身为 Fairchild）的 NC7SB3157P6X 是一款低压 SPDT 模拟开关或 2:1 多路复用器/解复用器总线开关，采用 6 引脚 SC-70 (SC-88/SOT-363) 封装。它的工作电压为 1.65 V 至 5.5 V，4.5 V 时的典型导通电阻为 3-7 欧姆，具有轨至轨信号处理、先断后接开关和 250 MHz -3 dB 带宽。选择引脚 (S) 可在连接到 A 端口的 B0 和 B1 端口之间进行选择。过压容限控制输入为 7 V。工作温度范围为 -40C 至 +85C。后缀 P6X 表示 SC-70 卷带（3000 个/卷）。.

Onsemi 的 TinyLogic 系列 NC7SB3157（原名 Fairchild，也作为 FSA3157 出售）是一款单刀双掷 (SPDT) 模拟开关，可用作 2:1 多路复用器或 1:2 解多路复用器。NC7SB3157P6X 是 SC-70-6 卷带式版本，每卷 3000 个。.

设备根据选择 (S) 引脚的逻辑电平将公共端口 A 连接到 B0 或 B1。当 S 为低电平时，A 连接到 B0；当 S 为高电平时，A 连接到 B1。先断后连电路确保在选择转换期间两个开关不会同时导通，从而防止 B0 和 B1 之间瞬间短路。.

4.5 V 时的 3 欧姆典型导通电阻（最大 7 欧姆）可将压降和信号失真降至最低。轨至轨信号处理功能使开关能够在不削波的情况下传递 0 V 至 VCC 的模拟信号。250 MHz -3 dB 带宽支持高速数字和视频信号路由。.

该器件的工作电压为 1.65 V 至 5.5 V，涵盖所有常用逻辑电压（1.8 V、2.5 V、3.3 V、5 V）。控制输入可容忍高达 7 V 的电压，不受 VCC 影响，从而使 3.3 V 系统中的 5 V 控制信号无需电平转换。.

所有 I/O 引脚上的掉电高阻抗可防止 VCC 为 0 V 时出现回流电流，从而支持热插拔和部分电源应用。关断状态漏电流典型值仅为 0.05 uA（最大值为 1 uA），确保关断状态下的信号耦合最小。.

注：DigiKey 已将 NC7SB3157P6X-F40 变体（后缀为 -F40）标记为过时产品。基本 NC7SB3157P6X 仍可从其他分销商处购得。FSA3157P6X 与 Fairchild 产品系列中的器件相同，可用作对照参考。.

**CMOS 传输栅极开关：** 每条开关路径（A-B0、A-B1）使用一个 CMOS 传输栅极（并联 NMOS + PMOS）。NMOS 通过 VCC 端附近的信号，而 PMOS 则通过 GND 端附近的信号。它们共同提供轨至轨信号处理功能，在整个电压范围内具有相对平坦的导通电阻。.

**先断后连：** 在选择引脚转换期间，当前接通的开关会在新的开关闭合之前打开。这可防止 B0 和 B1 之间出现可能导致电流尖峰或信号闪烁的瞬时低阻抗通路。先断后接延迟内置于内部控制逻辑中。.

**选择逻辑：** S 引脚控制哪个开关打开。S = 低电平：A-B0 连接，A-B1 断开。S = 高：A-B1 连接，A-B0 断开。选择引脚具有 CMOS 输入阈值（VIH 为 0.7 VCC，VIL 为 0.3 VCC，电压为 2.3-5.5 V），可容忍高达 7 V 的电压，与 VCC 无关。.

**过压容限：** 当 VCC 为 0 V 时，所有 I/O 引脚都会进入高阻抗状态，阻止端口之间的任何电流通路或进入电源。这样就能实现热插拔和实时插入应用，将板卡插入供电系统。.

针脚 名称 类型 说明
1 B1 输入/输出 开关端口 B1；双向；当 S=HIGH 时连接至 A；当 S=LOW 时连接至高 Z；轨对轨信号（0 至 VCC）；最大 7 欧姆 Ron@4.5V
2 A 输入/输出 共用端口；双向；根据 S 连接至 B0 或 B1；轨对轨信号；主信号路由端口
3 接地 G 接地；连接至 PCB 地平面；用 0.1uF 旁路 VCC 至 GND
4 B0 输入/输出 开关端口 B0；双向；当 S=LOW 时连接至 A；当 S=HIGH 时连接至高 Z；轨对轨信号
5 S I 选择输入；低电平 = A 连接至 B0；高电平 = A 连接至 B1；容许 7V 过压；CMOS 输入电平；不得浮动
6 VCC P 电源电压；1.65V 至 5.5V；使用 0.1uF 陶瓷旁路至 GND；确定信号范围（0 至 VCC）
应用 说明
音频信号路由 可将两个音频源切换到一个输出；3 欧姆 Ron@4.5V 可保持音频质量；轨至轨可处理全音频摆幅；"先断后连 "可防止切换过程中产生 "啪嗒"/"咔嗒 "噪音；250MHz BW 远远超出音频需求
电池/GPIO 电压选择 可在电池支持和 GPIO 驱动信号路径之间进行选择；S 引脚来自 MCU；1.65V 最低 VCC 适用于低压系统；过压容忍选择引脚允许在 3.3V 系统中进行 5V 控制
用于 ADC 输入的 2:1 复用器 将两个传感器信号中的一个路由到单个 ADC 输入；低罗恩将信号衰减降至最低；低电荷注入 (7pC) 保持 ADC 精度；先断后连防止传感器交叉耦合
模型 制造商 兼容性 主要区别
FSA3157P6X onsemi 相同（费尔柴尔德名字） 相同裸片、相同封装、相同电气规格；FSA 前缀为 Fairchild 命名；NC7SB 为 TinyLogic 命名；完全可互换
NC7SB3157L6X onsemi 包装变体 与 MicroPak-6 的功能相同（1.0 毫米宽无引线）；占用空间较小；在 SC-70 过大时使用
SN74LVC1G3157DKR TI 功能等效 SPDT 模拟开关；1.65-5.5V；10 欧姆 Ron@4.5V；SC-70-6；Ron 更高；源自 TI 的替代品
74LVC1G3157GW-7 二极管公司 竞争性替代方案 SPDT 开关；1.65-5.5V；10Ohm Ron；SOT-363；Diodes Inc 源；低成本选项
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质量保证

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • 汽车电子: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • 医疗设备: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

联系我们

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

发货与付款

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
  • PayPal: Ideal for small orders, sample orders and quick payments.

  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
  1. Logistics Partners
  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
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  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
  1. Shipping Fee Rules
  • Shipping cost is calculated based on package weight, volume, destination and delivery method.
  • Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
  1. Shipment Tracking
     

    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

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    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
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  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

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We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

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4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

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6. Global Logistics & Document Services

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Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
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  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

Online Inquiry Form

Support Excel, PDF, CSV format files for full BOM list quotation

Submit your component procurement and custom packaging needs via the form below. We will provide a detailed quotation and professional solution within 1–8 working hours.

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