Inductance steps
Values step from WHPBU-100705N-R072L0 at 72 nH through WHPBU-100705N-R15L0 at 150 nH to WHPBU-100705N-R30L0 at 300 nH, each at ±15% tolerance. Lower values suit higher switching frequency or more phases.
Inductor products
WHPBU-100705N Power Bead Inductors
WHPBU-100705N covers 200 to 300 nanohenries at about 0.325 milliohm, with 31 amps heating current and 12 to 25 amps saturation at 100 degrees. It suits phases carrying moderate current where the higher inductance helps keep ripple down.
Part number search & selector
Find WHPBU-100705N Power Bead Inductors part numbers
Filter WHPBU-100705N power beads by initial inductance, tolerance, DCR, saturation current at 25 °C and 100 °C, and heating current.
* Frozen Image and Part Number columns · drag horizontally to review all specifications
| Image | Datasheet | Compare | Downloads |
category
|
Initial Inductance (nH)
|
Tolerance (±%)
|
DCR(mΩ)
|
1-Saturation Current@25℃ (Amps)(typ)
|
2-Saturation Current@100℃(Amps)(typ)
|
Heating Current(Amps)(typ)
|
Sample |
|---|
| Image | Part number | Datasheet | Compare | Downloads | category | Initial Inductance (nH) | Tolerance (±%) | DCR(mΩ) | 1-Saturation Current@25℃ (Amps)(typ) | 2-Saturation Current@100℃(Amps)(typ) | Heating Current(Amps)(typ) | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
WHPBU-100705N-R30L0 | SPEC | WHPBU-100705N | 300 | 15 | 0.325±7% | 19 | 12 | 31 |
|
||
|
|
WHPBU-100705N-R22L0 | SPEC | WHPBU-100705N | 220 | 15 | 0.325±7% | 30 | 24 | 31 |
|
||
|
|
WHPBU-100705N-R20L0 | SPEC | WHPBU-100705N | 200 | 15 | 0.325±7% | 33 | 25 | 31 |
|
||
|
|
WHPBU-100705N-R15L0 | SPEC | WHPBU-100705N | 150 | 15 | 0.325±7% | 45 | 35 | 31 |
|
||
|
|
WHPBU-100705N-R12L0 | SPEC | WHPBU-100705N | 120 | 15 | 0.325±7% | 65 | 50 | 31 |
|
||
|
|
WHPBU-100705N-R10L0 | SPEC | WHPBU-100705N | 100 | 15 | 0.325±7% | 70 | 60 | 31 |
|
||
|
|
WHPBU-100705N-R072L0 | SPEC | WHPBU-100705N | 72 | 15 | 0.325±7% | 80 | 70 | 31 |
|
No matching part numbers
Broaden the selected filters or clear the current search.
By series
WHPBU series by current capability
Series differ in body size, which sets DC resistance and how much current each phase carries.
Series overview
WHPBU-100705N power bead inductor selection
WHPBU-100705N power bead inductors are high current inductors for multiphase buck converters, one per phase between the power stage and the output capacitors. They are also listed as high current power inductors or VRM inductors. Values run from 72 nH (WHPBU-100705N-R072L0) to 300 nH (WHPBU-100705N-R30L0), all at 0.325 mΩ ±7% DCR and 31 A heating current. For more heating current, compare the WHPBU-100710N or WHPBU-150705N power beads.
Hot and cold saturation
Saturation current falls as the part heats. WHPBU-100705N-R072L0 is listed at 80 A and 70 A, WHPBU-100705N-R15L0 at 45 A and 35 A, and WHPBU-100705N-R30L0 at 19 A and 12 A, so compare parts at your board temperature.
One DCR for every value
DCR is 0.325 mΩ ±7% and heating current 31 A across the series, so copper loss per phase does not change with the inductance you pick; the value moves ripple and saturation margin instead.
Phase count and frequency
Fewer, slower phases need more inductance to hold ripple, so start near WHPBU-100705N-R22L0 or WHPBU-100705N-R30L0. Many fast phases suit WHPBU-100705N-R10L0 or WHPBU-100705N-R072L0, listed at 60 A and 70 A at 100 °C.
Open the High Current Power Bead Inductors selection guide →
Applications
Where WHPBU-100705N power bead inductors are used
Any multiphase VRM with moderate current per phase is a candidate.
CPU VRMs in servers
A server VRM spreads the CPU load across many phases, each with its own power bead. Where each phase stays within 31 A continuous, WHPBU-100705N-R10L0 suits fast-switching designs at 100 nH.
Switch ASIC and FPGA core rails
Core rails on switch ASICs and FPGAs run high current at low voltage through a multiphase stage. WHPBU-100705N-R12L0 at 120 nH keeps DCR at 0.325 mΩ, with hot saturation listed at 50 A at 100 °C.
Graphics and accelerator cards
GPU and accelerator boards run DrMOS power stages at high phase counts. Low values such as WHPBU-100705N-R072L0 suit fast switching; check the 100 °C saturation current against the load-step peak.
Documents
WHPBU-100705N power bead inductor datasheets
Search the full part number, such as WHPBU-100705N-R15L0, to open its datasheet, then confirm the outline drawing and current ratings before layout.
Showing representative available file sets. Search to find a specific SKU.
WHPBU-100705N-R30L0WHPBU-100705N
WHPBU-100705N-R22L0WHPBU-100705N
WHPBU-100705N-R20L0WHPBU-100705N
WHPBU-100705N-R15L0WHPBU-100705N
WHPBU-100705N-R12L0WHPBU-100705N
WHPBU-100705N-R10L0WHPBU-100705N
- 7
- PDF datasheets listed
- 0
- 3D file sets listed
- 0
- PCB footprints listed
VOOHU’s published product content is reviewed by its engineering team. Specifications, downloads and technical support information are tied to specific part numbers, so you can verify them before requesting samples or a quotation.
Sourcing
Sourcing WHPBU-100705N power bead inductors
VOOHU manufactures WHPBU power bead inductors in its own magnetics factory in Mianyang. Each part number has a datasheet in the downloads; 3D models and PCB footprints are not listed.
Discuss a new design
Contact FAE for a replacement assessment.
Already have a part number? Request samples or a quote.
Samples and quotations
Samples are available for evaluation, and selected parts are free of charge. Our FAE team will be glad to confirm the options for your project. For a quotation, give the part number, quantity per board and build volume; typical lead time is 7–10 days.
Replacing another power bead
Send the part number and datasheet of the power bead you want to replace. Our FAE team compares inductance, DCR, saturation and heating current and footprint, then suggests WHPBU-100705N candidates to validate with samples before production.
Quality and company
VOOHU is ISO 9001 and ISO 14001 certified. Since 2018 VOOHU has supplied more than 1,500 customers, including 150+ listed companies. The WHPBU power beads are made in the same Mianyang factory as VOOHU’s molded power inductors.
FAQ
WHPBU-100705N power bead inductor questions
Supply, which current limit applies first, and a comparison at the same inductance.
What per-phase current does WHPBU-100705N support?
Heating current is 31 amps, which caps the continuous RMS each phase can carry at the rated temperature rise. Saturation at 100 degrees runs from about 12 to 25 amps depending on the inductance value, and your peak phase current including transients must stay below that hot figure.
Why is the inductance range narrower than other series?
This series covers 200 to 300 nanohenries, a tighter band than the wider-ranging series. Higher inductance reduces ripple current for a given switching frequency, which suits designs running fewer phases or lower frequency. If you need lower inductance for a fast multiphase stage, compare the other series.
How does it compare with WHPBU-100710N?
They share a footprint family but the 100710N has roughly half the DC resistance, 0.18 against 0.325 milliohm, and more than double the heating current at 70 amps. If your phase current is high or board temperature is tight, the 100710N is the better starting point despite the taller body.
Which current figure should I size on?
Size the continuous load against the 31 amp heating current and the transient peak against the 100 degree saturation figure. The 25 degree saturation number is useful for comparing parts, but designing to it leaves no margin once the converter reaches working temperature.
How do I request samples or a quote?
With a complete part number, send the part number, quantity, delivery region and the date you need it. If you are still selecting, send the phase count, per-phase RMS and peak current, switching frequency and ambient temperature, and a sales engineer will confirm candidates.
Is VOOHU a WHPBU-100705N power bead inductor manufacturer?
Yes. VOOHU manufactures WHPBU-100705N power bead inductors in its own magnetics factory in Mianyang, China. The same factory builds the WHPBU-100710N, WHPBU-131308N and WHPBU-150705N series, so one supplier can cover several phase designs on a board.
Which limit applies first on a WHPBU-100705N part, heating or saturation?
It depends on the value. From WHPBU-100705N-R072L0 to WHPBU-100705N-R15L0, the 100 °C saturation current of 70 A down to 35 A sits above the 31 A heating current, so heating sets the continuous limit. From WHPBU-100705N-R20L0 to WHPBU-100705N-R30L0, hot saturation of 25 A down to 12 A sits below it.
How does WHPBU-100705N compare with WHPBU-150705N at the same inductance?
On the WHPBU-150705N page, WHPBU-150705N-R15L0 is listed at 60 A hot saturation and 53 A heating current, with 0.47 mΩ DCR. Here, WHPBU-100705N-R15L0 is listed at 35 A and 31 A, with 0.325 mΩ DCR, so the choice is current headroom against copper loss.
Engineer support
WHPBU-100705N power bead inductor samples
Send the candidate part number and the condition you need reviewed. Sample support can be added after the selection is clear; commercial questions may be discussed in the same engineering conversation.
- 1Selected part numbers
- 2Engineering review
- 3Sample request
- 4Commercial discussion
For a replacement review
- Original part and datasheet
Include the document revision
- Operating conditions
Temperature, isolation voltage and PoE current basis
- Package constraints
Pin count, pitch and spacing between pin rows
- Project stage and annual volume
To help prioritize samples and evaluation
- Target review date
When you need candidates and a comparison of differences
Engineering review identifies candidate parts and explains the differences.
For samples and a quotation
- Candidate part numbers
From the selector or engineering review
- Quantity and project stage
Prototyping / pilot build / production
- Required delivery date
Specify sample and production timing separately
- Required documentation
Compliance documents, material declarations or third-party reports
Samples are available for evaluation, and selected parts are free of charge. Our FAE team will be glad to confirm the options for your project. Sales will respond on business days.
Related guides and reviews
Choosing multiphase buck inductors from 72 to 320 nH
View all alternatives
