Part Review and Datasheet Update
Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.
Thought for 4 sec
I’ll review the part metadata, find and set the official datasheet URL if missing, then cross-check symbol pins, footprint, and descriptions against the datasheet and summarize mismatches.
Worked for 3 mins 24 sec
Reviewed the part against the Würth 750343576 datasheet and created the full report here: Part Review: Würth 750343576.
The symbol pin numbering, winding mapping, 10-pad SMT footprint, body outline, land pattern, and pin-1 marker all match the datasheet. Main flags: pin descriptions/types are not populated, the Datasheet URL is already set but points to a stored PDF rather than Würth’s official URL, and the manufacturer name is shortened from “Würth Elektronik.”
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Part Review: Würth 750343576
Date: 2026-07-06
Scope
Reviewed available part information for the published part project
750343576: MPN, package, pin count, description, project properties, schematic symbol terminals, footprint geometry, and pin descriptions. Cross-check source was the datasheet already attached to the project plus Würth Elektronik's official product page/datasheet URL.Existing Part Metadata
Table
| Field | Project value | Datasheet / source check | Result |
|---|---|---|---|
| Manufacturer Part Number | 750343576 | 750343576 | Match |
| Manufacturer | Würth | Würth Elektronik / Würth Elektronik Midcom | Match, but project uses shortened manufacturer name |
| Part Type | Ethernet | WE-PoE++ Power over Ethernet Plus Plus Transformer | Acceptable, broad category |
| Description | WE-POE++ Power-over-Ethernet transformer ER19/4.8/15 SMT | WE-PoE++ Power over Ethernet Plus Plus Transformer, size ER19/4.8/15, SMT | Match |
| Mount | Surface Mount | SMT | Match |
| Designator Prefix | T | Transformer | Match |
| Pin / pad count | 10 | 10 used terminals: pins 1,2,3,4,5,6,7,8,10,11 | Match |
| Datasheet URL | Attached PDF stored in project assets | Official URL found: https://www.we-online.com/components/products/datasheet/750343576.pdf | Datasheet is present; official URL is different from stored asset URL |
Key Datasheet Specs
Table
| Spec | Value |
|---|---|
| Product family | WE-PoE++ Power over Ethernet Plus Plus Transformer |
| Size / core | ER19/4.8/15 |
| Status | Valid / active |
| Revision date | Rev. 003.001, 2024-02-16 |
| Topology / version | Forward |
| Input voltage, typical app | 40-57 VDC |
| Output 1, typical app | 24 V, 3 A |
| Auxiliary voltage | 12 V |
| Switching frequency | 200-700 kHz |
| Inductance | 100 uH ±20%, N1+N2, 10 kHz, 1 V |
| Turns ratio | N1:N2:N3:N4:N5 = 4:4:4:4:4 |
| DC resistance | N1 6.5 mOhm max; N2 6.5 mOhm max; N3 10.5 mOhm max; N4 10.5 mOhm max; N5 120 mOhm max |
| Leakage inductance | 400 nH max, N1+N2, 100 kHz, 100 mV |
| Voltage-second product | 240 Vs, N1+N2 bipolar waveform |
| Insulation test voltage | 2250 VDC, N1/N2/N5 to N3/N4 |
| Operating temperature | -40 to +125 C |
| MSL | 1 |
| Max body dimensions | 23.37 mm length, 21.08 mm width, 10.5 mm height |
| Terminal size | 1.2 mm x 0.5 mm |
Symbol Pin / Winding Cross-check
Table
| Symbol terminal | Project pin number | Datasheet winding | Datasheet pin | Polarity dot | Result |
|---|---|---|---|---|---|
| N5_1 | 1 | N5 | 1 | Dot | Match |
| N1_1 | 2 | N1 | 2 | Dot | Match |
| N2_1 | 3 | N2 | 3 | Dot | Match |
| N1_2 | 4 | N1 | 4 | No dot | Match |
| N2_2 | 5 | N2 | 5 | No dot | Match |
| N5_2 | 6 | N5 | 6 | No dot | Match |
| N3_1 | 7 | N3 | 7 | Dot | Match |
| N4_1 | 8 | N4 | 8 | Dot | Match |
| N3_2 | 10 | N3 | 10 | No dot | Match |
| N4_2 | 11 | N4 | 11 | No dot | Match |
Datasheet schematic mapping: N1 = pins 2-4, N2 = pins 3-5, N5 = pins 1-6, N3 = pins 7-10, N4 = pins 8-11. Typical application: input N1+N2, output N3+N4, auxiliary N5.
Footprint Cross-check
Table
| Footprint feature | Project footprint | Datasheet / source | Result |
|---|---|---|---|
| Pad count | 10 SMD rectangular pads | 10 SMT terminals | Match |
| Pad numbering | Pins 1,2,3,4,5,6 on left; 7,8,10,11 on right | Same terminal set in datasheet | Match |
| Pad span across part | ±10.615 mm from center, 21.23 mm total | Land pattern reference 21.23 mm | Match |
| Pad size | 1.89 mm x 3.13 mm rectangular pads | Recommended land-pattern dimensions include 1.89 mm and 3.13 mm | Match |
| Body / fab outline | ~23.37 mm x 21.08 mm | Max body dimensions 23.37 mm x 21.08 mm | Match |
| Pin 1 marker | Silk dot near pin-1 side | Datasheet pin 1 dot marking | Match |
Mismatches / Issues Flagged
- Pin descriptions are not populated. The terminal properties have
Pin Type: Unspecifiedand no explicit pin description text. Electrically the pin numbers and winding names are correct, but pin descriptions should ideally state the winding and polarity, e.g.N1 dotted end,N1 non-dotted end. - Datasheet URL is present but points to a stored PDF asset, not the official Würth URL. The official URL found is
https://www.we-online.com/components/products/datasheet/750343576.pdf. Because a Datasheet URL was already set, this review did not require replacing it, but using the official URL would be cleaner for traceability. - Manufacturer name is shortened. Project value is
Würth; datasheet/source usesWürth Elektronik/Würth Elektronik Midcom. This is not functionally wrong, but the full legal/manufacturer name is more precise. - No BOM item appears in the BOM view. This is expected for a part project made of terminals/pads rather than a schematic design instance, but it means BOM-based validation does not provide additional confirmation.
Overall Assessment
The schematic terminal numbering, winding grouping, pad count, SMD footprint geometry, body outline, and pin-1 marking are consistent with the datasheet for Würth 750343576. The only substantive cleanup items are metadata quality issues: add explicit pin descriptions / pin types and optionally replace the stored-asset datasheet URL with Würth's official datasheet URL.
Scope
Existing Part Metadata
Key Datasheet Specs
Symbol Pin / Winding Cross-check
Footprint Cross-check
Mismatches / Issues Flagged
Overall Assessment
