Datasheet Review
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Found the actual library match as Murata BLE18PS080SN1D, but this part project’s visible MPN is still set to “IND”; I’m checking the official Murata PDF against the imported symbol/footprint now.
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Part Datasheet Review — BLE18PS080SN1D
Date: 2026-07-14 Project / part: BLE18PS080SN1D
View docCompleted the part review for Murata BLE18PS080SN1D and set the Datasheet URL to the official Murata PDF. I created the full review here: Part Datasheet Review — BLE18PS080SN1D.
Open items flagged:
- Pin types are Unspecified; they should be Passive.
- Pin descriptions are missing.
- Part should be described as a ferrite bead / chip power bead, not just a generic inductor.
- Footprint is plausible, but high-current use needs copper-area guidance; the 8 A rating depends on PCB copper, not only the 0603 pads.
Suggested next steps:
- Update the two terminal pin types/descriptions.
- Add a usage note about Murata’s copper guidance for 8 A designs.
- Re-check the 3D model/body alignment against the 1.6 × 0.8 × 0.6 mm package.
Fix metadata and review
Fix pin metadata
Add current notes
Check 3D alignment
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Part Datasheet Review — BLE18PS080SN1D
Date: 2026-07-14
Reviewed part metadata
- Project / part: BLE18PS080SN1D
- Manufacturer: Murata
- Manufacturer part number: BLE18PS080SN1D
- Part type in project: Inductor
- Recommended functional type: Ferrite bead / chip power bead / EMI suppression filter
- Designator prefix: L
- Terminal count: 2
- Package: 0603 imperial / 1608 metric
- Datasheet URL set: https://www.murata.com/products/productdata/8800169525278/ENFA0080.pdf
Datasheet source
Official Murata reference specification:
- Document: ENFA0080.pdf
- Spec. No.: JENF243A-0080E-01
- Title: Chip Power Bead for Consumer equipment & Industrial equipment, BLE18□□□□□SN1□ Reference Specification
- Exact MPN row: BLE18PS080SN1D
Key datasheet specs
Table
| Parameter | Datasheet value |
|---|---|
| Function | Chip power bead / ferrite bead, 1 circuit |
| Impedance at 100 MHz | 8.5 Ω ±25% |
| Impedance at 1 GHz | 8.5 Ω |
| Rated current at 85 °C | 8000 mA / 8 A |
| Rated current at 125 °C | 5000 mA / 5 A |
| DC resistance, initial max | 0.004 Ω |
| DC resistance after testing max | 0.005 Ω |
| Operating temperature | −55 °C to +125 °C |
| Storage temperature | −55 °C to +125 °C |
| Body size | 1.6 ±0.15 mm × 0.8 ±0.15 mm |
| Thickness | 0.6 ±0.15 mm |
| Electrode length | 0.4 ±0.2 mm |
| Packaging suffix D | Taping |
Schematic symbol and pin review
Observed in Flux:
- Two schematic terminal components are present: 1 and 2.
- Both terminals have Pin Number set correctly to 1 and 2.
- Both terminals have Pin Type = Unspecified.
- No visible pin descriptions are present; the detailed pin list shows
undefined.
Datasheet comparison:
- The datasheet describes a 2-terminal, 1-circuit, non-polarized ferrite bead and does not assign unique functional names to either electrode.
- Pad/pin numbering 1/2 is acceptable and no polarity is required.
Flagged issues:
- Pin Type should be Passive, not Unspecified. This is the clearest schematic-symbol metadata mismatch.
- Pin descriptions are missing. Recommended descriptions: “Ferrite bead terminal” for both pins, or “Terminal 1” / “Terminal 2” without implying polarity.
- Functional classification should be ferrite bead / chip power bead, not only generic inductor. The part is specified by RF impedance and DCR, not inductance.
Footprint review
Observed footprint data:
- Footprint asset:
BLE18PS080SN1D.kicad_mod - Pads: 2 SMD rectangular pads, numbered 1 and 2
- Pad centers: ±0.7493 mm on X axis
- Pad size: 0.9652 mm × 0.9398 mm
- Pad center-to-center spacing: 1.4986 mm
- Inner pad gap: approximately 0.5334 mm
- Overall copper pad span: approximately 2.4638 mm
- Footprint text notes: 0.097 in / 2.464 mm, 0.021 in / 0.533 mm, 0.037 in / 0.94 mm
- Fab outline: approximately 1.753 mm × 0.940 mm
- 3D model asset present:
IND_BLE18PS080_MUR.step
Datasheet comparison:
- Body nominal is 1.6 mm × 0.8 mm, with tolerance up to 1.75 mm × 0.95 mm. The footprint fab outline is close to the maximum body envelope and is plausible.
- The two SMD pads and pad numbering match the 2-terminal non-polarized device.
- The Murata land-pattern table for BLE18PS080 does not provide standard
a,b, andcpad dimensions; it focuses on high-current copper dimensiond.
Flagged footprint / layout risks:
- Footprint appears solderable and generally plausible for a 0603/1608 part, but the exact Murata
a/b/cpad dimensions are not confirmed in the available datasheet table. - 8 A use requires board copper, not only the small chip pads. Murata gives current/thermal copper guidance for BLE18PS080:
- 35 µm copper:
d = 6.4 mm - 70 µm copper:
d = 3.3 mm
- 35 µm copper:
- The footprint itself does not enforce those high-current copper areas. Users must size traces/pours/vias for 8 A and temperature rise in the end design.
- Pad width is approximately 0.94 mm, while body width is 0.8 ±0.15 mm. This is not necessarily wrong, but it leaves little lateral margin versus maximum body width and should be treated as an imported footprint to verify during manufacturing review.
Electrical-property notes
- The 8.5 Ω value is impedance at 100 MHz, not DC resistance and not an inductance value.
- DC resistance must be represented separately as 4 mΩ max initial and 5 mΩ max after testing.
- Current rating is temperature-dependent: 8 A at 85 °C, 5 A at 125 °C.
- For real use near the current rating, the PCB copper design is part of the rating; a narrow trace into a 0603 pad will not automatically satisfy the datasheet conditions.
Summary of mismatches and recommendations
Table
| Area | Status | Recommendation |
|---|---|---|
| Datasheet URL | Fixed | Official Murata URL has been set. |
| MPN / manufacturer | OK after review | BLE18PS080SN1D / Murata. |
| Pin count | OK | 2 terminals matches datasheet. |
| Pin numbering | OK | Pins 1 and 2 match footprint pads. |
| Pin electrical type | Mismatch | Change both pins from Unspecified to Passive. |
| Pin descriptions | Incomplete | Add non-polar descriptions for both terminals. |
| Part classification | Needs improvement | Label as Ferrite Bead / Chip Power Bead / EMI filter, not only generic Inductor. |
| Footprint pad count | OK | Two SMD pads match device. |
| Footprint land pattern | Plausible with caution | Exact Murata a/b/c land dimensions are not confirmed in the datasheet table. |
| High-current support | Risk | Add copper area / trace-width guidance for 8 A designs per Murata d dimension. |
| Electrical specs | Needs careful representation | Keep RF impedance, DCR, and current rating as distinct properties. |
Recommended follow-up edits
- Set both terminal pin types to Passive.
- Add pin descriptions: “Ferrite bead terminal” for pins 1 and 2.
- Update part type / description wording to emphasize ferrite bead / chip power bead.
- Add a note to the part description or usage notes: 8 A rating requires sufficient PCB copper; follow Murata copper dimension guidance and trace-width calculations.
- If this part will be used at high current, verify layout copper area, trace width, via count, and temperature rise in the consuming PCB design.
Reviewed part metadata
Datasheet source
Key datasheet specs
Schematic symbol and pin review
Footprint review
Electrical-property notes
Summary of mismatches and recommendations
Recommended follow-up edits
