WMSIC Electronic Components

Sunlord SDNT2012X103F3450FTF

ModelSDNT2012X103F3450FTF
Package0805
BrandSUNLORD
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Sunlord SDNT2012X103F3450FTF
Type
SUNLORD
Minimum package
4000 编带

Technical parameters

Power
200mW
Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SDNT2012X103F3450FTF
Electronic Component
1
Electronic Component
1.25mm
Package
0805
Electronic Component
NTCThermistor Resistor
Electronic Component
0.037g
Electronic Component
2mm
Electronic Component
10kΩ
Electronic Component
0.85mm
Electronic Component
1
B
±1%
Electronic Component
BM0211639644
Operating Temperature
55℃~+125℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SDNT2012X103F3450FTF 产品概述

一、产品简介

SDNT2012X103F3450FTF 是顺络(Sunlord)推出的一款高精度表面贴装型 NTC 热敏电阻,封装尺寸为 0805(国际封装代码,对应常见印制板焊盘)。器件标称阻值 10 kΩ,电阻精度 ±1%,B 值(25℃/50℃)为 3450 K,B 值精度 ±1%。该型号定位为温度检测与温度补偿场景下的高稳定性、小体积方案,适合对测温精度和响应速度有较高要求的便携式与工业电子设备。

二、主要参数

  • 品牌:Sunlord(顺络)
  • 型号:SDNT2012X103F3450FTF
  • 描述:NTC 热敏电阻,0805,10 kΩ,±1%
  • 阻值(25℃ 标称):10 kΩ,精度 ±1%
  • B 值(25℃/50℃):3450 K,精度 ±1%
  • 额定功率:200 mW
  • 最大稳态电流(25℃):400 µA
  • 耗散系数(热阻):2 mW/℃
  • 热时间常数:5 s
  • 工作温度范围:-55℃ ~ +125℃
  • 封装尺寸(近似):长 2.00 mm × 宽 1.25 mm × 高 0.85 mm

三、关键性能特点

  • 高精度:阻值与 B 值均为 ±1% 精度,适合要求严苛的温度测量与补偿电路。
  • 小型化:0805 表面贴装封装,利于高密度 PCB 设计与自动化贴装。
  • 快速响应:5 s 的热时间常数在贴片 NTC 中属响应较快的类型,适用于动态温度测量。
  • 低自热影响:建议遵循最大稳态电流 400 µA 的使用限制。尽管器件额定功率为 200 mW,但为维持测量精度,实际测量电路中通常限制工作功率远低于额定值。
  • 宽温区间:-55℃ 至 +125℃ 的工作范围满足大多数工业与消费类应用需求。

注:在最大稳态电流 400 µA(25℃)条件下,器件在 10 kΩ 时的耗散功率约为 1.6 mW,对应的自热温升约为 1.6 mW / (2 mW/℃) ≈ 0.8℃;若按额定功率 200 mW 计算,温升将非常显著(≈100℃),因此测温应用中应避免接近额定功率工作点。

四、典型应用场景

  • 精密温度传感器与环境监测模块(MCU 外围温度采样)
  • 电池管理系统(温度监测与充电/放电保护)
  • 可穿戴与便携式电子产品中的温度补偿与过温检测
  • 工业控制、空调与 HVAC 系统的温度采集点
  • 医疗设备、传感节点与物联网终端的温度测量

五、使用与焊接建议

  • 推荐采用标准回流焊工艺进行贴装,遵循 PCB 板级回流温度曲线与焊料厂商建议,避免过长高温暴露影响长期性能。
  • 设计焊盘与过孔时应注意热均衡,避免过大热阻导致局部过热或自热误差。
  • 为降低自热误差,测温电路应使用较低驱动电流或采用恒流/恒压分压采样并考虑测量时隙短脉冲供电方式。
  • 避免在器件上施加机械应力或外力弯曲 PCB,以免影响焊点与内部结构稳定性。

六、存储与可靠性注意事项

  • 存储环境建议干燥、常温并防止强酸碱气体侵蚀。
  • 对潮湿敏感的器件在长时间储存后建议进行烘焙处理(按封装与库房规范)再进行贴装。
  • 在长期使用中如需高可靠性评估,建议按应用场景进行热循环与老化测试验证。

七、封装与外形

  • 封装类型:0805(SMT)
  • 外形尺寸(典型):长 2.00 mm × 宽 1.25 mm × 高 0.85 mm,适配常见 0805 焊盘布局,便于自动化贴装与波峰/回流焊工艺。

总结:SDNT2012X103F3450FTF 以其高精度(±1% 阻值与 B 值)、小型化封装与快速热响应,适用于各类对温度测量精度与稳定性有较高要求的便携与工业电子产品。在实际电路设计中,应优先考虑限制工作功率以降低自热影响,并采用合适的焊接与布线方法以保证测量准确性与长期可靠性。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.