What are the key features of VISHAY SI4840DY?

This product belongs to the MOSFETs 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 VISHAY with full traceability.

What are the main application scenarios for SI4840DY?

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 SI4840DY work?

This device follows established MOSFETs 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 SI4840DY?

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 SI4840DY?

The global MOSFETs market is growing at ~6-8% CAGR, with particularly strong demand in power management. VISHAY SI4840DY 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 SI4840DY?

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, VISHAY provides full technical support and reference designs.

SI4840DY Small Signal Field-Effect Transistor, 10A I(D), 40V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SO-8 by VISHAY

SI4840DY | VISHAY Small Signal Field-Effect Transistor, 10A I(D), 40V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SO-8

Category: MOSFETs

Brand: VISHAY

Small Signal Field-Effect Transistor, 10A I(D), 40V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SO-8

Stock: On request

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Product Details

PDF Datasheet

Technical Docs

Description: Small Signal Field-Effect Transistor, 10A I(D), 40V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SO-8

Technical Parameters

Application	Power Switching
Brand	VISHAY
Channel	N-Channel
Data Tier	Family Level
Mounting Type	Surface Mount
Operating Temperature	-55 to +150 C
Packaging	Tape & Reel
Product Type	MOSFET
RoHS	Compliant
Series	SI4

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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3D Model (.stp)

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SI4840DY Application and Selection Guide

SI4840DY Model and Manufacturer Information

SI4840DY, a MOSFETs manufactured by VISHAY: SI4840DY helps you confirm the specific model, while VISHAY helps you confirm the product source. If you are selecting a part, you can first check whether SI4840DY meets your requirements, then check whether VISHAY matches your expectations, and then refer to Small Signal Field-Effect Transistor, 10A I(D), 40V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SO-8 for further evaluation.

SI4840DY Product Parameters and Description

The main parameters of VISHAY's MOSFETs product SI4840DY include Small Signal Field-Effect Transistor, 10A I(D), 40V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, SO-8. This is a MOSFETs produced by VISHAY, and it also offers good applicability in embedded systems, common 3C electronics, automotive electronics, electronic devices, and IoT devices.

SI4840DY Application and Selection Reference

VISHAY's MOSFETs product SI4840DY has a relatively wide range of applications in embedded systems, common 3C electronics, automotive electronics, electronic devices, and IoT devices. Overall, SI4840DY is a MOSFETs solution worth considering, and manufacturer VISHAY provides long-term supply program support for this product, which helps ensure supply continuity during mass production.

Recommended Part Numbers for SI4840DY

Designers looking for SI4840DY recommended parts can evaluate the following options. SI4840DY selection decisions should verify parameters, tolerance and packaging against the original design bill of materials.

Recommended Part	Brand	Description
SIHG17N80AE-GE3	VISHAY	MOSFET 800V N-CHANNEL
SQJB40EP-T1_BE3	VISHAY
SI1026X-T1-GE3	VISHAY	MOSFETs 60V Vds 20V Vgs SC89-6

EZKEY can provide SI4840DY recommended part comparison data and engineering samples for evaluation.