What are the key features of STMicroelectronics LL4148?

This product belongs to the General Purpose category and ships in standard packaging. It features high reliability, stable performance and low power consumption. Key parameters include wide operating range, low loss, and over-temperature protection, suitable for industrial applications. Manufactured by STMicroelectronics with full traceability.

What are the main application scenarios for LL4148?

Typical applications include power management, industrial control. Additionally, it is widely used in automotive electronics, telecom infrastructure, medical devices, and consumer electronics as a critical circuit component, improving system integration and energy efficiency.

How does LL4148 work?

This device follows established General Purpose design principles. Core functional stages include input handling, signal and power processing, and protection logic, ensuring stable operation under varying conditions. Refer to the datasheet for the detailed characteristics and application guidance.

What is the technical performance of LL4148?

Performance highlights: stable characteristics across the operating temperature range, low loss, and long service life. Reliable contact and shock resistance, with protection against over-current and over-voltage where applicable. Meets industrial and automotive reliability standards where the series qualifies.

What is the current market demand for LL4148?

The global General Purpose market is growing at ~6-8% CAGR, with particularly strong demand in power management. STMicroelectronics LL4148 is a mainstream model with stable stock and a typical lead time of 2-4 weeks. Driven by new energy and smart electronics trends, inquiries for this model are steadily increasing, indicating a positive long-term outlook.

What are the technical characteristics of LL4148?

Three main technical features: 1) High reliability – stable performance over the rated life; 2) Low-loss design – reduced energy loss in operation; 3) Wide adaptability – compatible with various operating conditions. Additionally, STMicroelectronics provides full technical support and reference designs.

LL4148 功率：500mW 直流反向耐压(Vr)：100V 平均整流电流(Io)：200mA 正向压降(Vf)：1V@10mA 反向电流(Ir)：25nA@20V 反向恢复时间(trr)：4ns by STMicroelectronics

LL4148 | STMicroelectronics 功率：500mW 直流反向耐压(Vr)：100V 平均整流电流(Io)：200mA 正向压降(Vf)：1V@10mA 反向电流(Ir)：25nA@20V 反向恢复时间(trr)：4ns

Category: General Purpose

Brand: STMicroelectronics

功率：500mW 直流反向耐压(Vr)：100V 平均整流电流(Io)：200mA 正向压降(Vf)：1V@10mA 反向电流(Ir)：25nA@20V 反向恢复时间(trr)：4ns

Stock: On request

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Product Details

PDF Datasheet

Technical Docs

Description: 功率：500mW 直流反向耐压(Vr)：100V 平均整流电流(Io)：200mA 正向压降(Vf)：1V@10mA 反向电流(Ir)：25nA@20V 反向恢复时间(trr)：4ns

Technical Parameters

Application	General Purpose
Brand	anybrand
Data Tier	General Description
ECCN	EAR99
Halogen Free	Yes
Lead Free	Yes
Packaging	Tape & Reel
Product Type	Electronic Component
REACH	Compliant
RoHS	Compliant

Standard Packaging: Standard packaging refers to the minimum packaging quantity obtained from the manufacturer/distributor. Therefore, the minimum order quantity may be less than the manufacturer's standard packaging quantity. When products are broken down into smaller quantities, the packaging type (i.e., reel, tube, tray) may change, subject to actual packaging delivery.

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PCB Footprint (.pcb)

3D Model (.stp)

Schematic Symbol (.sch)

DXF Drawing

LL4148 Application and Selection Guide

LL4148 Model and Manufacturer Information

LL4148, a General Purpose manufactured by anybrand: LL4148 helps you confirm the specific model, while anybrand helps you confirm the product source. If you are selecting a part, you can first check whether LL4148 meets your requirements, then check whether anybrand matches your expectations, and then refer to 功率：500mW 直流反向耐压(Vr)：100V 平均整流电流(Io)：200mA 正向压降(Vf)：1V@10mA 反向电流(Ir)：25nA@20V 反向恢复时间(trr)：4ns for further evaluation.

LL4148 Product Parameters and Description

The main parameters of anybrand's General Purpose product LL4148 include 功率：500mW 直流反向耐压(Vr)：100V 平均整流电流(Io)：200mA 正向压降(Vf)：1V@10mA 反向电流(Ir)：25nA@20V 反向恢复时间(trr)：4ns. This is a General Purpose produced by anybrand, and it also offers good applicability in embedded systems, common 3C electronics, automotive electronics, electronic devices, and IoT devices.

LL4148 Application and Selection Reference

anybrand's General Purpose product LL4148 has a relatively wide range of applications in embedded systems, common 3C electronics, automotive electronics, electronic devices, and IoT devices. Overall, LL4148 is a General Purpose solution worth considering, and manufacturer anybrand provides long-term supply program support for this product, which helps ensure supply continuity during mass production.

Recommended Part Numbers for LL4148

Designers looking for LL4148 recommended parts can evaluate the following options. LL4148 selection decisions should verify parameters, tolerance and packaging against the original design bill of materials.

Recommended Part	Brand	Description
STM32L4R5ZIT6	STMicroelectronics	ULTRA-LOW-POWER WITH FPU ARM COR
LD1117DT50CTR	STMicroelectronics	IC REG LDO 5V 0.95A DPAK
L78M08CDT-TR	STMicroelectronics	IC REG LINEAR 8V 500MA DPAK

EZKEY can provide LL4148 recommended part comparison data and engineering samples for evaluation.