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How to Reduce Planar Transformer Temperature Rise: Copper, Core and 60–120 W Selection | VOOHU

How to Reduce Planar Transformer Temperature Rise: Copper, Core and 60–120 W Selection | VOOHU

Separate winding, core and external heat, then select among four VOOHU 24 V planar transformers from 60 W to 120 W.

How to Choose a Dual-Port LAN Transformer: 48/50 Pins, DIP/SMT and Concurrent PoE Validation | VOOHU

How to Choose a Dual-Port LAN Transformer: 48/50 Pins, DIP/SMT and Concurrent PoE Validation | VOOHU

Select dual-port Gigabit LAN magnetics by pin count, mounting, PoE and temperature, then validate both ports concurrently.

PoE Ethernet Port Design: Six Questions Engineers Ask Most

PoE Ethernet Port Design: Six Questions Engineers Ask Most

VOOHU explains six common PoE design questions, from LAN Transformer DC bias and IEEE 802.3af/at/bt current ratings to 90 W component selection and the PD-side power budget.

Push-Pull Transformer Selection Comparison: VOOHU WHST06Q02E0 vs. Würth Elektronik 750316819

Push-Pull Transformer Selection Comparison: VOOHU WHST06Q02E0 vs. Würth Elektronik 750316819

VOOHU WHST06Q02E0 is a 1CT:2.88CT, six-pin SMT push-pull transformer with 86 µH open-circuit inductance, 2500 VAC isolation test voltage, and a −40°C to +125°C operating range.

BMS Isolation Transformer Selection Comparison: VOOHU WHST06Y01A0 vs. Pulse HM1238NLT

BMS Isolation Transformer Selection Comparison: VOOHU WHST06Y01A0 vs. Pulse HM1238NLT

VOOHU WHST06Y01A0 is a six-pin SMT isolation transformer for BMS applications. Its 1CT:1CT winding arrangement, 300 µH-class open-circuit inductance, and high-voltage isolation test conditions make it a candidate for comparison with HM1238NLT.

Do Ethernet Couplers Reduce Speed? Why Gigabit Drops to 100 Mb/s and How to Check

Do Ethernet Couplers Reduce Speed? Why Gigabit Drops to 100 Mb/s and How to Check

Diagnose speed drops after an Ethernet cable extension and choose VOOHU Cat6 couplers by cable entry, shielding and panel configuration.

100/1000 BASE-T PoE+ LAN Transformer Selection Comparison: VOOHU WHSG24R03C0 vs. CND-tek G24191S

100/1000 BASE-T PoE+ LAN Transformer Selection Comparison: VOOHU WHSG24R03C0 vs. CND-tek G24191S

1. Competitor Product Overview (CND-tek)A single-port Gigabit PoE+ interface has four differential channels to manage. Its magnetics must carry the 1000BASE-T signal path while maintaining cable isolation, common-mode behavior, and power current. CND-tek

10/100 BASE-TX LAN Transformer Selection Comparison: VOOHU WHSH16109N0 vs. Bothhand NS0013 LF

10/100 BASE-TX LAN Transformer Selection Comparison: VOOHU WHSH16109N0 vs. Bothhand NS0013 LF

1. Competitor Product Overview (Bothhand Enterprise Inc.)For PC Card, CardBus, and compact 10/100M Ethernet interface designs, Bothhand NS0013 LF uses a 16-pin SMD package with 1CT:1CT TX and RX windings. For an existing-board sourcing change, pin functi

How to Stop Molded Power Inductor Coil Whine: Light-Load PFM, Magnetostriction, IRMS and ISAT Selection | VOOHU

How to Stop Molded Power Inductor Coil Whine: Light-Load PFM, Magnetostriction, IRMS and ISAT Selection | VOOHU

A practical method for tracing light-load inductor noise and choosing VOOHU molded inductors by L, DCR, IRMS, ISAT and mechanical constraints.

PoE Power Transformer Selection Comparison: VOOHU WHEP7089 vs. Coilcraft POE30P-12LD Replacement Evaluation

PoE Power Transformer Selection Comparison: VOOHU WHEP7089 vs. Coilcraft POE30P-12LD Replacement Evaluation

VOOHU WHEP7089 and Coilcraft POE30P-12LD are compared for 3 W PoE flyback power transformer replacement evaluation, with attention to terminal topology, electrical test conditions, and PCB fit.

How to choose between single channel and dual channel BMS isolation transformer? 600–1600V operating voltage, CMC and daisy chain break positioning | VOOHU

How to choose between single channel and dual channel BMS isolation transformer? 600–1600V operating voltage, CMC and daisy chain break positioning | VOOHU

From the aspects of single/dual channel, 600–1600VDC operating voltage, isolation withstand voltage, CMC and chain break waveform, the selection and verification method of BMS daisy chain isolation transformer is explained.

Push-pull transformer selection comparison: VOOHU WH41-111 and Würth Elektronik 78931812505 replacement evaluation

Push-pull transformer selection comparison: VOOHU WH41-111 and Würth Elektronik 78931812505 replacement evaluation

VOOHU WH41-111 vs. Würth Elektronik 78931812505 push-pull transformer replacement evaluation focusing on terminal topology, turns ratio, isolation withstand voltage, volt-seconds, leakage inductance, and PCB pad boundaries.

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