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Inductor Saturation Current vs Rated Current (Isat vs Irms): Which Do You Check First?

Inductor Saturation Current vs Rated Current (Isat vs Irms): Which Do You Check First?

Saturation current (Isat) and rated current (Irms) limit different things, so a power inductor has to pass both checks. Isat is the DC current at which inductance has fallen by a stated percentage, about 30 % on VOOHU's molded power inductor datasheets. C

Unidirectional vs Bidirectional TVS Diode: Which One Does Your Line Need?

Unidirectional vs Bidirectional TVS Diode: Which One Does Your Line Need?

A unidirectional TVS diode clamps surges in one direction only: when the line goes positive past its breakdown voltage it clamps, and when the line goes negative it conducts like an ordinary forward-biased diode. A bidirectional TVS diode clamps at about

How to Design a Single Pair Ethernet (SPE) Interface: Magnetics, PoDL and Connectors

How to Design a Single Pair Ethernet (SPE) Interface: Magnetics, PoDL and Connectors

Design a Single Pair Ethernet port: DC-blocking caps, common mode choke, optional isolation transformer, PoDL coupling and IEC 63171 connector choice.

What Is Single Pair Ethernet (SPE)? PHY Types, Cable Reach and the 2026 Standards

What Is Single Pair Ethernet (SPE)? PHY Types, Cable Reach and the 2026 Standards

Single Pair Ethernet (SPE) runs Ethernet over one twisted pair. Compare 10BASE-T1L (1,000 m), 10BASE-T1S, 100BASE-T1 and the 2026 802.3da and 802.3dg.

MII vs RMII vs RGMII vs SGMII: Which MAC-to-PHY Interface Should You Use?

MII vs RMII vs RGMII vs SGMII: Which MAC-to-PHY Interface Should You Use?

MII vs RMII vs RGMII vs SGMII: data width, clock and pin count (RGMII 12 pins, SGMII 1.25 Gbps serial), and how to pick the MAC-to-PHY interface.

OSFP vs QSFP-DD vs QSFP28 vs QSFP112: Host-Board Cage and Connector Differences

OSFP vs QSFP-DD on the board: QSFP-DD adds a second contact row (76 vs 38) and accepts QSFP modules; OSFP uses 60 pins. Also covers QSFP28 and QSFP112.

IEEE 802.3bt PoE Magnetics: How to Choose the Data-Side LAN Transformer

IEEE 802.3bt PoE Magnetics: How to Choose the Data-Side LAN Transformer

In 4-pair operation, an IEEE 802.3bt (PoE++) port drives DC current through the cable-side center taps of the LAN transformer on all four pairs, so the data-side magnetics must carry that current and still keep the inductance the Ethernet signal needs. Ch

Shielded vs Unshielded RJ45 Connector: When Does a PCB Jack Need a Shield, and How Should It Be Grounded?

Shielded vs Unshielded RJ45 Connector: When Does a PCB Jack Need a Shield, and How Should It Be Grounded?

Short answer. Use a shielded RJ45 connector when the product will be cabled with shielded twisted pair (F/UTP, S/FTP and similar), when it sits in a metal enclosure that must meet tight emission or immunity limits, or when the port faces a noisy industria

Troubleshooting Guide for Ethernet Communication Anomalies: In-depth Analysis of PHY and Network Transformer Selection and Wiring Design Issues

Troubleshooting Guide for Ethernet Communication Anomalies: In-depth Analysis of PHY and Network Transformer Selection and Wiring Design Issues

Troubleshooting Guide for Ethernet Communication Anomalies: In-depth Analysis of PHY and Network Transformer Selection and Wiring Design Issues——Locate link failures from the source of hardware design─────────────────────────────────────────

VOOHU Website Usage Guide

VOOHU Website Usage Guide

VOOHU's Guide to Data Communication Products to help meet network requirements in different scenarios

VOOHU's Guide to Data Communication Products to help meet network requirements in different scenarios

In the wave of the information age, data communication products are like bridges, connecting every corner of the world. Choosing the right data communication product is crucial to ensuring the efficient operation of your business and improving your person

Application and purchase guide of VOOHU communication electronic components in the field of industrial control

Application and purchase guide of VOOHU communication electronic components in the field of industrial control

In today's era, industrial control systems are playing an increasingly important role as a key support for the development of national infrastructure and manufacturing industry. As the core element of industrial control scenarios, the performance, reliabi

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