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Vishay Telecom Engineering Blog

Featured telecom engineering article
Fiber

The Cost of a Wrong Part Number: What I Learned About Vishay Resistors in De Soto, KS

A firsthand account of a costly mistake with Vishay resistors, lessons on component sourcing, and how a location check in De Soto, KS, would have saved my project. Learn from my $3,200 error.

2026-05-27 · Vishay Telecom Engineering
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RF

How to Test a Capacitor with a Multimeter: A Quick, Reliable Method for Engineers Under Pressure

Learn the definitive, field-tested method for testing capacitors with a multimeter. Bypass the guesswork and get a reliable reading, even when you're on a tight deadline.

2026-05-27 · Vishay Telecom Engineering
RF

Why I Stopped Treating Vishay Resistors and Power MOSFETs as 'Commodity Parts'

A quality manager explains why the conventional wisdom of treating passive components and discrete semiconductors as interchangeable commodities is wrong, using real-world examples from Vishay's portfolio.

2026-05-26 · Vishay Telecom Engineering
RF

The $3,200 Mistake I Made Ordering Vishay Obsolete Parts (And How I Learned to Check Voltage Drop)

A procurement engineer recounts a costly mistake with Vishay/Spectrol parts, learning the hard way why voltage drop and proper crimping matter, and how to avoid common pitfalls with obsolete components.

2026-05-26 · Vishay Telecom Engineering
RF

Vishay Components: A Practical 5-Step Verification Checklist for Engineers and Procurement Managers

A no-nonsense guide from a quality compliance manager on how to verify Vishay components using a real-world checklist. Avoid costly mistakes with actionable steps for spec compliance, sourcing, and authenticity.

2026-05-25 · Vishay Telecom Engineering
RF

Rush Order or Standard Lead Time: How to Decide When Every Hour Counts

A practical, scenario-based guide for engineers and procurement specialists deciding between rush orders and standard lead times for electronic components like Vishay resistors, capacitors, and potentiometers.

2026-05-25 · Vishay Telecom Engineering
RF

Cypress vs Best: Why Vishay Sensors are the Hidden Key in Your Voltage Tester (8110 Case Study)

A procurement manager breaks down the real cost difference between Cypress and Best voltage testers, arguing that the true value lies in the sensors. Using the model 8110 as a case study, this article reveals why Vishay components matter more than the brand on the box and how ignoring them cost one company thousands.

2026-05-22 · Vishay Telecom Engineering
RF

Vishay Components: 8 Questions Engineers & Procurement Pros Ask—Answered

A practical FAQ covering Vishay MLCCs, the Nobel acquisition, blood pressure sensor applications, C300 series, and how Vishay switches compare to Cisco alternatives. Written from a quality inspector's perspective.

2026-05-22 · Vishay Telecom Engineering
RF

Beyond the Brand: Why the Buying Blind Spot on Vishay Transducers Costs More Than You Think

Procurement insights on buying Vishay components. A cost controller reveals the hidden TCO trap in transducer sourcing and why the wrong shortcut on the Duraphx Extreme costs more than a price premium.

2026-05-21 · Vishay Telecom Engineering
RF

Vishay Locations, Nomenclature, and My $800 Mistake: A FAQ for Engineers

A practical FAQ based on real-world experience navigating Vishay's global locations, part numbering (like the N93 code), and how to avoid costly specification errors when comparing rugged hardware like Toughbook vs Dell.

2026-05-21 · Vishay Telecom Engineering
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Latest Notes

Vishay Thermistors and Authorized Distributors: A Procurement Guide for Blood Pressure Cuffs, Audio Jacks, and Wi-Fi Connected Devices Vishay Made Where? A Quality Manager's Guide to SMD Resistors, IGBTs, and the C300 Sourcing Vishay Parts for Power Supply Builds: Foil Resistors, the TSOP7000, and What 2780 Taught Me Why I Stopped Specifying Vishay Parts Without Checking the Voltage Drop First Vishay in a Rush: Bridge Rectifiers, TSAL6100, and the VSRX Product Page Vishay Diode, Standard Resistor Values, and Connector TCO: The 'vs Cisco' Trap Handling a Rush Vishay Order Without Getting Burned: NTCLE100E3103JB0, Vishay Diodes, 2660 Flip, and VSRX Vishay vs. Generic Components: What a Quality Inspector Checks Before Saying 'Equivalent' Vishay Obsolete Parts, 10k Potentiometers, and the Quality Checks That Actually Matter Vishay Precision Resistors and Vishay Inductors: A Procurement Person's Honest Guide

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Precision resistors, capacitors, diodes, sensors, and connector-adjacent components engineered for carrier-grade bandwidth, insertion-loss control, and RF front-end stability.

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