WMSIC Electronic Components

ROHM ESR03EZPJ303

ModelESR03EZPJ303
Package0603
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ROHM ESR03EZPJ303
Type
ROHM
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
ESR03EZPJ303
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.023g
Electronic Component
30kΩ
Electronic Component
1
Electronic Component
BM0257621568
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±200ppm/℃
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 ESR03EZPJ303 厚膜贴片电阻产品概述

一、产品定位与核心属性

ROHM ESR03EZPJ303是一款0603封装厚膜贴片电阻,主打通用精度与宽温适应性,兼顾小型化、可靠性与成本优势。核心聚焦中小功率电路的电阻匹配、分压/限流需求,适配消费电子、工业控制、汽车辅助电路等多场景,是ROHM厚膜电阻系列中的通用型主力产品。

二、关键技术参数深度解析

2.1 阻值与精度

阻值为30kΩ,采用行业标准三位编码标识(303):前两位“30”为有效数字,第三位“3”代表倍率10³,换算后阻值为30×10³=30kΩ。精度标注为**±5%**,属于通用精度等级,可覆盖大多数非高精度电路(如普通信号分压、小电流限流、电源反馈网络),无需额外承担高精度电阻的成本。

2.2 功率与工作电压

功率额定值为250mW(0.25W),是0603封装厚膜电阻的常规功率等级;工作电压最大为150V。需注意功率与电压的匹配关系:当电压达150V时,电流为I=150V/30kΩ=5mA,功耗P=I²R=0.25W,与额定功率完全匹配。实际使用需严格控制电压≤150V或电流≤5mA,避免过功率损坏。

2.3 温度系数与温漂特性

温度系数(TCR)为**±200ppm/℃**,即温度每变化1℃,阻值变化±200×10⁻⁶×30kΩ=±6Ω。典型场景示例:环境温度从25℃升至155℃(变化130℃),阻值变化±780Ω,相对30kΩ的温漂率为±2.6%;结合±5%精度,总误差范围±7.6%,适合对温漂要求不高的电路(如普通开关电路、非精密测量)。

2.4 工作温度范围

工作温度覆盖**-55℃+155℃**,远超商用级(0℃70℃)与工业级(-40℃~125℃)标准,可稳定工作于汽车发动机舱(高温区域)、工业现场(极端温度)等严苛环境,解决普通电阻高温衰减问题。

三、封装与物理特性

该电阻采用0603封装(英制:0.06″×0.03″;公制:1.6mm×0.8mm),属于小型化贴片封装,适配SMT表面贴装工艺,大幅节省电路板空间,满足现代电子设备轻薄化需求。

工艺上采用厚膜技术:通过丝网印刷电阻浆料于陶瓷基板,经高温烧结形成电阻膜,再经电极、封装制成。厚膜工艺兼具成本优势与稳定性,耐温、耐湿、抗振动能力优于部分薄膜电阻,适合批量生产。

四、环境适应性与可靠性

  1. 宽温适配:-55℃~+155℃覆盖极端温度循环(如汽车启动时温度突变);
  2. 抗恶劣环境:符合IEC 60068-2-6振动标准、IEC 60068-2-27冲击标准,抗振动/冲击能力强;
  3. 品牌管控:符合RoHS环保标准,批次一致性好,出厂前经阻值分选、功率老化测试,性能稳定。

五、典型应用场景

  • 消费电子:智能手机/平板电源分压、LED指示灯限流(小电流场景);
  • 工业控制:PLC输入输出接口电阻匹配、传感器信号调理电路限流/分压;
  • 汽车电子:车载中控辅助电路、仪表盘背光驱动限流(适配发动机舱高温);
  • 通信设备:路由器/交换机小信号处理电路(非精密信号路径)。

六、品牌与品质保障

ROHM(罗姆)拥有60+年电子元器件研发经验,其厚膜电阻以“稳定可靠、性价比高”著称。ESR03EZPJ303符合IEC、JIS国际标准,提供完整质量证明文件,售后保障完善,供货稳定。

该产品通过平衡参数性能与成本,成为中小功率电路的高性价比选择,尤其适合对温宽、可靠性有要求的通用场景。

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