WMSIC Electronic Components

UniOhm 0603WAF6803T5E

Model0603WAF6803T5E
Package0603
BrandUNIOHM
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
Uni Ohm 0603WAF6803T5E
Type
UNIOHM
Minimum package
5000

Technical parameters

Power
100mW
Electronic Component
UNIOHM
Electronic Component
0603WAF6803T5E
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.023g
Electronic Component
680kΩ
Electronic Component
10
Electronic Component
BM0237838457
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±100ppm/℃
Resistor Type
Resistor
Electronic Component
5000

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

0603WAF6803T5E 产品概述

一、产品简介

0603WAF6803T5E 为 UniOhm(台湾厚声)推出的 0603 封装厚膜片式电阻,标称阻值 680 kΩ,精度 ±1%,额定功率 100 mW,额定工作电压 75 V,温度系数(TCR)±100 ppm/℃,工作温度范围 -55℃ 至 +155℃。该系列面向高阻值、空间受限且要求较高稳定性的表面贴装应用。

二、主要性能特点

  • 阻值:680 kΩ,±1% 精度,适合精密分压与高阻输入电路。
  • 功率:额定 100 mW(在额定环境条件下),小型 0603 封装(约 1.6 mm × 0.8 mm)。
  • 工作电压:75 V(器件工艺/介质限制,超过此值可能造成击穿或可靠性下降)。
  • 温度系数:±100 ppm/℃,温漂可控,适用于一般工业与仪表级电路。
  • 温度范围:-55℃ 至 +155℃,满足宽温工况需求。

三、电气与热特性说明(示例计算)

  • 在最大工作电压 75 V 下,电流 I = 75 V / 680 kΩ ≈ 110 μA,耗散功率 P = V^2 / R ≈ 8.3 mW,远低于额定 100 mW。
  • TCR ±100 ppm/℃ 意味着每升高 1℃ 阻值变化约 0.01%,对 680 kΩ 来说约 ±68 Ω/℃,在大温度摆幅下需关注漂移对电路的影响。

四、适用场景

  • 高阻输入/偏置电路(例如运放输入、滤波与采样电路的偏置电阻)。
  • 高阻分压器与模拟前端(与放大器、ADC 配合的高阻分压)。
  • 低电流或高阻测量应用(由于封装与功率限制,不推荐用于高电流用途)。
  • 一般工业、通信及消费电子中的空间受限位置。

五、设计与装配注意事项

  • 额定功率会随环境温度升高而降额,设计时应参考厂方热降额曲线;常见做法为在高温下线性降至零,请在量产前确认数据手册。
  • 0603 为微小封装,建议使用适合的贴片机与回流焊工艺;回流温度峰值应遵循 J-STD-020 或厂方推荐曲线。
  • 厚膜电阻相较金属膜在噪声与长期稳定性上略逊一筹,若对长期稳定性或低噪声有严格要求,应权衡材料选择。
  • 清洗与打磨应避免机械应力与化学腐蚀,储存时防潮以维持焊接可靠性。

六、可靠性与合规

该系列适用于宽温与工业级应用,普遍可满足常见的可靠性测试(耐焊接、温循环、湿热等)。常见供应为卷带(Tape & Reel)包装,便于 SMT 自动化装配。具体 RoHS、REACH 等合规性与寿命测试数据请以 UniOhm 正式数据手册与出货证明为准。

七、选型建议

  • 若需更低温漂或更高长期稳定性,可考虑金属薄膜或合金膜电阻;若空间受限且需大功率,请选择更大封装。
  • 在高电压应用中切勿只依据额定功率计算允许电压,应以额定工作电压 75 V 为上限并留安全裕量。
  • 量产前建议获取厂方样品并做实际环境与寿命测试,验证在目标电路中的表现。

如需将该型号用于具体电路(示例:ADC 输入分压、偏置网络、滤波电阻),可提供电路参数,我可帮您核算影响并给出布板与降额建议。

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