WMSIC Electronic Components

PANJIT MMSZ5257B_R1_00001

ModelMMSZ5257B_R1_00001
PackageSOD-123
BrandPANJIT
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
PANJIT MMSZ5257B_R1_00001
Type
PANJIT
Minimum package
3000

Technical parameters

Electronic Component
PANJIT
Electronic Component
MMSZ5257B_R1_00001
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.032g
Electronic Component
1
(Zzk)
700Ω
(Zzt)
58Ω
Electronic Component
BM0265431466
Diode
1
Current(Ir)
100nA@25V
Power Dissipation(Pd)
500mW
Electronic Component
31.35V~34.65V
Electronic Component
55℃~+150℃
Electronic Component
3000

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

MMSZ5257B_R1_00001稳压二极管产品概述

MMSZ5257B_R1_00001是强茂(PANJIT) 推出的一款独立式稳压二极管,采用SOD-123小型表面贴装封装,专为需要稳定33V左右电压的电子电路设计,兼具低功耗、宽温适应性与紧凑尺寸等特点,适用于多种工业及消费电子场景。

一、产品基本属性与核心定位

该器件属于通用型稳压二极管,核心功能是在反向击穿状态下提供稳定的电压输出,满足电路对基准电压或过压保护的需求。作为独立式配置,无需额外并联元件即可实现稳压功能,简化电路设计;SOD-123封装则契合现代电子设备小型化、高密度布局的趋势,可直接焊接于PCB表面,安装便捷。

二、关键电气参数详解

1. 稳压值规格

  • 标称稳压值:33V,为器件的典型稳压输出;
  • 稳压范围:31.35V~34.65V,覆盖±5%的误差区间,可适应不同生产批次的参数波动,满足一般电路对稳压精度的要求。

2. 反向漏电流

反向漏电流(Ir)为100nA@25V(反向电压25V时),该数值极低,说明器件在反向未击穿状态下的功耗极小,适合低功耗电路设计,可有效降低待机状态下的能量损耗。

3. 耗散功率

最大耗散功率(Pd)为500mW(0.5W),是器件允许的最大功耗上限。实际应用中需注意:工作时的功耗(稳压值×工作电流)需低于此值,避免过热损坏。例如,若稳压值为33V,最大允许工作电流约为15mA(500mW÷33V≈15mA)。

4. 动态阻抗

动态阻抗是衡量稳压性能的核心指标,包含两个关键参数:

  • Zzt(测试电流下阻抗):58Ω,数值较小,说明在额定测试电流下,器件的稳压精度较高,输出电压受电流波动的影响较小;
  • Zzk(拐点电流下阻抗):700Ω,为反向击穿前的阻抗,数值合理,确保器件在击穿前后的电压变化平稳,避免电压突变。

5. 工作结温范围

结温范围为**-55℃~+150℃**,覆盖了极宽的温度区间,可适应户外低温环境(如-55℃)及高负载下的高温环境(如150℃),满足工业控制、汽车电子等恶劣工况的可靠性需求。

三、封装特性与典型应用场景

1. SOD-123封装优势

SOD-123是小型表面贴装无引线封装,尺寸通常为2.4mm×1.6mm×1.0mm,具有以下特点:

  • 体积小,适合高密度PCB布局,可有效节省电路空间;
  • 无引线设计,焊接兼容性好,可通过回流焊、波峰焊等工艺实现批量生产;
  • 封装牢固,抗机械振动能力较强,适合便携设备或车载场景。

2. 典型应用场景

该器件的参数特性使其适用于以下场景:

  • 电源电路稳压:作为基准电压源,为MCU、传感器等模块提供稳定的33V供电;
  • 过压保护:并联于电路中,当电压超过稳压值时击穿导通,限制后级电路电压;
  • 小型电源模块:如电池充电电路、低功耗电源适配器的稳压环节;
  • 工业控制板:适应-55℃~+150℃的宽温环境,满足工业现场的可靠性要求。

四、可靠性与品牌保障

强茂(PANJIT)作为全球知名半导体制造商,其产品符合RoHS、REACH等环保标准,且经过严格的可靠性测试(如温度循环、湿度测试等),确保MMSZ5257B_R1_00001在长期工作中的稳定性。此外,该器件的低漏电流、宽温范围等特性,进一步提升了其在恶劣环境下的使用寿命。

五、使用注意事项

  1. 稳压值匹配:设计时需确认电路需求的稳压值在31.35V~34.65V范围内,避免超出误差区间影响功能;
  2. 功耗控制:实际工作电流需低于15mA(基于500mW功耗上限),若负载电流较大,需并联多个器件或搭配散热措施;
  3. 焊接规范:焊接温度需控制在260℃以内(回流焊),焊接时间不超过10秒,避免过热损坏器件内部结构;
  4. 极性确认:稳压二极管需反向接入电路(阴极接正、阳极接负),若极性接反将无法实现稳压功能,甚至损坏器件。

综上,MMSZ5257B_R1_00001稳压二极管凭借紧凑尺寸、宽温适应性、低功耗等优势,成为通用稳压电路的理想选择,可广泛应用于消费电子、工业控制、汽车电子等领域。

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