What Are UL Flammability Ratings for DC Fans and Where Can You Find Them?
Learn what UL 94 V-0 and V-1 flammability ratings mean for DC fans and where to find frame and impeller…
How Custom Fan Tray Assemblies Reduce Cooling System Complexity
Custom fan tray assemblies help simplify cooling system design by integrating fans, wiring, housings, and supporting components into one module.…
Guide to Selecting Fans for 1U, 2U, 3U Server Racks
Server racks pack high heat loads into tight volumes, so fan selection comes down to pressure capability, airflow, depth, power,…
Single Fault Signal for Multi-Fan Systems: ORing Locked Rotor Outputs
Learn how a simple ORing circuit combines locked rotor outputs to monitor multiple DC fans and generate a single fault…
Active Rear Door Heat Exchangers: The Role of Fans and How to Select Them
Learn how Active rear door heat exchangers (RDHx) use axial fans to control airflow and maintain stable cooling in high-density…
A Guide To Select Cooling Fan Finger Guard
Choose a cooling fan finger guard that protects users, preserves airflow, and keeps noise low—with guidance on geometry, finishes, and…
How to Reduce System Noise via Fan Design
Reduce system noise without losing cooling: choose thicker, higher-performance fans and run them at lower PWM. Practical tips for smarter…
How EMC Filter Placement Choked a Server Fan (And What Fixed It)
Optimizing EMC In-Filter Design for Server Hot-Swap Fan Trays A server customer came to us with a familiar complaint: their…
How Cooling Fan Testing Solved Airflow and Noise in LED Projection
Discover how SANYO DENKI AMERICA solved airflow and noise issues in LED projection equipment through cooling fan testing, optimized fan…
How to Size the Pull‑Up Resistor for DC Fan Tach Sensor
Learn how to size the pull‑up resistor for a DC fan tach output sensor, keep Ic below 5 mA, and get accurate RPM…
