PZ254V-11-05P
hand-fit SWD header — XFCN — C492404 — board-l J3; swd-adapter J2 — rec-c492404
Everything below is projected from this project's stored component evidence. Values keep the exact wording, conditions, units and verdicts they were recorded with — nothing here is re-typed, corrected, or combined into an overall judgement about the part.
This record in the catalog: PZ254V-11-05P
Subordinate record
This is a subordinate record. It is a component in its own right, with its own orderable identity and its own placements, but its evidence is audited as part of rec-c529334, because its behaviour is only meaningful in that part's circuit. Read the parent record for the shared context; the facts below are the ones specific to this line.
Identity
Record ID:
rec-c492404Record kind: subordinate
Manufacturer part number:
PZ254V-11-05PManufacturer: XFCN
Function: hand-fit SWD header
LCSC ID:
C492404Package:
HDR-TH_5P-P2.54-V-MInventory line:
line-c492404Also known as:
Board L SWD header,adapter 1x5 SWD headerOwner skill:
component-stm32g031f8p6Fit: DNP or hand-fit
Identity state: UNRESOLVED
Source state: SOURCE UNAVAILABLE
Coverage: 1 open of 2 published
Component references
Selected document
Mechanical drawing PDF
Footprint preview
HDR-TH_5P-P2.54-V-M. Open SVGPackage model
Interactive inspection requires JavaScript and WebGL. The package identity remains available in this page.
This geometry represents a shared footprint package and may not exactly match the manufacturer part.
Placements
Every position this exact line occupies in the as-built design. One line may be placed many times and across more than one board.
| Board | Reference designator |
|---|---|
| board-l | J3 |
| swd-adapter | J2 |
Coverage
Coverage is stated one domain at a time and is never rolled up. A domain marked open is a question that has not been answered; it is not a finding that the part is unsuitable. A record with no open domains has not thereby been declared safe.
identity-ratings-mechanical-and-project-pin-order
Coverage ID:
cov-c492404-specStatus: COVERED
Reason: fact-c492404-manufacturer; fact-c492404-rating; fact-c492404-mechanical; fact-c492404-topology
Facts in this domain:
installed-header-and-programmer-state
Coverage ID:
cov-c492404-fitStatus: OPEN
Reason: fact-c492404-topology marks J3 hand-fit/DNP; installed state and programmer behavior require inspection
Facts in this domain:
Blocked by: no blocking fact is recorded. What is missing has not been reduced to a specific recorded fact, so the reason above is the whole of what is known.
Facts
Each fact keeps its value, its unit, the conditions it holds under, where it came from and how far it has been confirmed as separate fields, because they are separate claims. A value without its conditions is not the same fact, and a verdict is about the evidence for the value, not about the part.
GUARANTEED_ELECTRICAL
A parameter the manufacturer guarantees over the stated conditions, usually with minimum, typical and maximum values.
| Fact | Value | Unit | Conditions | Verdict | Provenance | Evidence |
|---|---|---|---|---|---|---|
fact-c492404-rating | 3 A, contact resistance 20 milliohm maximum, -40 to 105 C, dielectric withstand 500 VAC/min | NONE | PZ254V-11 family drawing; voltage working rating is not stated and must not be inferred from dielectric withstand | PASS - primary-source confirmed | PRIMARY-SPEC | src-c492404-drawing: specification notes rows current, contact resistance, temperature and dielectric withstand |
PROJECT_STATE
A value this project recorded about how the part is used here — a chosen operating point, a net assignment, or a derived figure. Not a manufacturer specification.
| Fact | Value | Unit | Conditions | Verdict | Provenance | Evidence |
|---|---|---|---|---|---|---|
fact-c492404-manufacturer | XFCN | NONE | PZ254V-11 family identity; exact XX=05 selection is locked by the project generator | PASS - primary-source confirmed | PRIMARY-SPEC | src-c492404-drawing: title block row PZ254V-11-XX |
fact-c492404-mechanical | 5 positions at 2.54 mm pitch; 10.16 mm span; 0.64 mm square pins; 1.02 mm PCB holes; 6.1 mm mating and 3.0 mm tail lengths | NONE | XX=05 dimensional row | PASS - primary-source confirmed | PRIMARY-SPEC | src-c492404-drawing: title block and dimensions table |
fact-c492404-topology | J3 pin order 1 SWDIO, 2 SWCLK, 3 NRST, 4 V3P3, 5 GND; hand-fit/DNP | NONE | generated Board L netlist and population flag | NOT APPLICABLE | PROJECT-CHOICE | src-c492404-generator: section PARTS J3 and NETS |
Pin maps
The mapping between schematic pins and PCB pads, or physical terminals for an external part, as recorded. A record may carry more than one map when the same part is documented in more than one context.
pinmap-c492404
Symbol:
PZ254V-11-05PFootprint:
HDR-TH_5P-P2.54-V-MPins: 5
Pin assignments
| Symbol pin | Name | Footprint pad | Function |
|---|---|---|---|
1 | pin-1 | 1 | SWDIO |
2 | pin-2 | 2 | SWCLK |
3 | pin-3 | 3 | NRST |
4 | pin-4 | 4 | V3P3 |
5 | pin-5 | 5 | GND |
Interactions
Behaviour that is not a property of this part alone. Each interaction names the records it spans, the conditions it holds under, and how far it has been confirmed. An interaction that spans several parts appears on every one of their pages, under the same identifier, because it is equally a fact about each.
int-c492404-programming
Records involved:
rec-c529334,rec-c492404(this record),rec-c4749199Conditions: Board L J3 and adapter J1/J2 are DNP; use a straight pin-for-pin 1x5 cable, power the target, align both pin-1 marks and the 20-pin shroud key, keep J1.19 isolated, and verify fitment, continuity, target sense and debugger behavior before use
Verdict: NEEDS BENCH
Facts this rests on:
fact-c4749199-stlink-mappingon DS254P-2X10-L0fact-c4749199-topologyon DS254P-2X10-L0fact-c4749199-benchon DS254P-2X10-L0fact-c529334-reseton STM32G031F8P6fact-c529334-booton STM32G031F8P6fact-c529334-debugon STM32G031F8P6
Cross-component rules
Rules that span several parts at once and are published in full on the integration page. Each rule's verdict below is that rule's own — it is a statement about the cross-component question, not about this part — and the exact wording of what the rule refuses to conclude is published with the rule itself.
No cross-component rule names this record.
Sources
Every document cited above, with its identification, when it was retrieved, and what kind of authority it carries. Sources that could not be retrieved are listed too, with their unavailability stated, so a gap in the evidence is visible rather than absent.
XFCN PZ254V-11-05P product page
Source ID:
src-c492404-pageDocument number: PZ254V-11-05P
Revision: dynamic web response
Document date: 2026-08-02
Retrieved: 2026-08-02
Authority: MANUFACTURER_PRIMARY
Locator: Specifications and product attributes tables
Printed page: web page
Availability: SOURCE UNAVAILABLE
Document URL: https:
/ / www. xfconn. com/ index. php? a= index\ & aid= 1738\ & c= View\ & m= home
XFCN PZ254V-11-XX product drawing
Source ID:
src-c492404-drawingDocument number: PZ254V-11-XX
Revision: A1
Document date: 2024-06-11
Retrieved: 2026-08-02
Authority: MANUFACTURER_PRIMARY
Locator: Title block, specification notes and XX=05 dimensional row
Printed page: 1
Availability: AVAILABLE
Document URL: https:
/ / www. xfconn. com/ uploads/ soft/ 20240711/ 4- 240G11122102R. pdf
Board L generated schematic specification
Source ID:
src-c492404-generatorDocument number: board-l-spec
Revision: 410bc1a342286dd6c205d6dcec0f248b8a963987
Document date: 2026-08-01
Retrieved: 2026-08-02
Authority: PROJECT_GENERATOR
Locator: Source section PARTS J3 and NETS SWDIO/SWCLK/NRST/V3P3/GND
Printed page: source
Availability: AVAILABLE
Legend
What the recorded terms on this page mean, in ordinary words. The exact terms above are the ones that count; these descriptions explain them and never replace them.
Verdict
| Recorded term | What it means |
|---|---|
NOT APPLICABLE | The parameter does not apply to this part as it is used here. |
PASS - primary-source confirmed | Confirmed against the manufacturer's own document for this exact part. |
Provenance
| Recorded term | What it means |
|---|---|
PRIMARY-SPEC | Taken from the manufacturer's own specification document. |
PROJECT-CHOICE | A decision made by this project. No vendor asserts it. |
Fact class
| Recorded term | What it means |
|---|---|
GUARANTEED_ELECTRICAL | A parameter the manufacturer guarantees over the stated conditions, usually with minimum, typical and maximum values. |
PROJECT_STATE | A value this project recorded about how the part is used here — a chosen operating point, a net assignment, or a derived figure. Not a manufacturer specification. |
Coverage status
| Recorded term | What it means |
|---|---|
COVERED | Every question this domain asks is answered by the facts listed against it. |
OPEN | Unresolved. Open means the question has not been answered, not that the part is unsafe — the reason states what is missing. |
Source availability
| Recorded term | What it means |
|---|---|
AVAILABLE | The document was retrieved and is on record. |
SOURCE UNAVAILABLE | The document could not be retrieved. It stays listed so the gap is visible; anything resting on it remains unsourced. |
Source authority
| Recorded term | What it means |
|---|---|
MANUFACTURER_PRIMARY | The manufacturer's own document for this exact part. |
PROJECT_GENERATOR | A document this project generated, such as a schematic or netlist export. |
Identity state
| Recorded term | What it means |
|---|---|
UNRESOLVED | The exact orderable part is not yet confirmed. Substituting a same-name part from another vendor is not permitted on that basis. |
Source state
| Recorded term | What it means |
|---|---|
SOURCE UNAVAILABLE | No document backing this line could be retrieved. |
Unit
| Recorded term | What it means |
|---|---|
NONE | The value is not a physical quantity, so it carries no unit. Recorded as `NONE`. |
Raw agent resource
This page is generated from a stored evidence bundle and does not restate it. The bundle is the source of truth: where the two ever disagree, the bundle is right and this page is stale.
Open the owning bundle component-stm32g031f8p6