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Engineering notes

Connector decisions for RF, Fiber, PoE, 5G, and high-density hardware.

Browse application notes on connector selection, assembly handling, and telecom qualification planning.

5GRFFiberPoEDatacenter
Telecom connector article RF / Fiber

Why I Stopped Approving Connector Specs Based on Unit Price

A quality compliance manager explains why selecting connectors based on unit price is a costly mistake. After a $22,000 rework incident, learn how TCO thinking, Hirose floating connectors, and U.FL connectors changed our spec review process.

2026-08-11Hirose Engineering
Telecom connector article RF / Fiber

How to Reset a Locked Phone: A Quality Inspector's 5-Step Checklist

How to reset a locked phone without turning it into a brick. A quality inspector explains the 5-step checklist, including Hirose U.FL and RJ45 connector checks, a 117 multimeter voltage test, and the one step most people skip.

2026-08-10Hirose Engineering