WMSIC Electronic Components

ROHM ESR18EZPF33R0

ModelESR18EZPF33R0
Package1206
BrandROHM
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ROHM ESR18EZPF33R0
Type
ROHM
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
ESR18EZPF33R0
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.025g
Electronic Component
33Ω
Electronic Component
1
Electronic Component
BM0264889541
Operating Temperature
55℃~+155℃
Operating Voltage
200V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

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

ROHM ESR18EZPF33R0 厚膜贴片电阻产品概述

一、产品基本信息与核心参数

ESR18EZPF33R0是ROHM(罗姆)推出的1206封装厚膜贴片电阻,专为中小功率、中高压电路设计,核心参数清晰明确:

  • 电阻类型:厚膜贴片电阻(陶瓷基底+厚膜电阻层工艺,兼顾稳定性与成本优势)
  • 阻值:33Ω(固定阻值,无可调设计)
  • 精度:±1%(满足多数工业/消费电子对阻值精准度的需求)
  • 额定功率:500mW(0.5W,适配中小功率负载场景)
  • 工作电压:200V(AC/DC通用,支持中高压电路应用)
  • 温度系数(TCR):±100ppm/℃(阻值随温度变化速率,每℃偏差0.01%)
  • 工作温度范围:-55℃~+155℃(覆盖工业级宽温,满足极端环境可靠性)
  • 封装尺寸:1206(公制2.0mm×1.2mm×0.5mm,适配主流贴片生产设备)
  • 品牌:ROHM(日系半导体厂商,品质管控符合AEC-Q200等标准)

二、设计特点与性能优势

ESR18EZPF33R0基于厚膜工艺与ROHM成熟封装技术,具备以下核心优势:

  1. 精准与稳定的平衡
    ±1%精度可直接用于信号调理、分压电路,无需额外校准;厚膜层与陶瓷基底的结合降低了阻值漂移风险,±100ppm/℃的TCR在宽温范围内(如155℃相对25℃)阻值偏差约1.3%,叠加精度后总误差≤2.3%,满足多数场景的精准需求。
  2. 中高压与功率适配性
    200V工作电压支持电源反馈、高压滤波等场景,无需并联电阻;500mW额定功率覆盖LED驱动、传感器偏置等中小功率负载,简化电路设计。
  3. 宽温可靠性
    工作温度范围超出常规工业级(-55~125℃)至155℃,适合高温环境下的工业控制、汽车辅助电路等应用,长期使用无明显性能衰减。
  4. 小型化与兼容性
    1206封装适配自动化贴装线,可兼容多数PCB设计,同时满足产品小型化趋势(如便携设备、紧凑型电源模块)。

三、典型应用场景

ESR18EZPF33R0的参数特性使其适用于以下场景:

  1. 工业自动化与控制
    传感器信号调理(压力/温度传感器分压偏置)、PLC输入输出模块限流、电机驱动辅助电路(中小功率部分)。
  2. 电源与电源管理
    开关电源反馈回路(精准分压控制输出电压)、AC-DC适配器限流/分压、LED驱动电流调节(适配小功率LED串)。
  3. 汽车电子辅助电路
    车载信息娱乐系统信号调理、车身控制模块(BCM)辅助电阻、传感器接口电路(宽温满足车载环境)。
  4. 消费电子与通信
    智能手机电源模块辅助电阻、路由器信号滤波、便携式设备电池保护电路(限流与分压)。

四、选型与使用注意事项

为确保长期可靠性,需注意以下要点:

  1. 功率降额设计
    实际工作功率建议不超过额定功率的80%(≤400mW),脉冲负载需按脉冲功率降额标准进一步降低,避免热累积失效。
  2. 温度环境匹配
    确认应用场景温度在-55~155℃范围内,若需更高温(如175℃以上),需更换车规级电阻。
  3. 焊接工艺要求
    回流焊遵循ROHM推荐曲线(峰值≤245℃,回流时间≤40秒);手工焊接烙铁温度≤350℃,焊接时间≤3秒,避免损伤厚膜层。
  4. 存储与运输
    未使用电阻存储于湿度≤60%RH的干燥环境,运输防止机械冲击,避免封装损坏。

该产品凭借精准度、宽温可靠性与成本优势,成为工业、汽车、消费电子等领域中小功率中高压电路的常用选型。

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