0603WAF5101T5E

external USB-C Rd resistor — UNI-ROYAL — C23186 — board-p R17, R18 — rec-rd-0603waf5101t5e

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: 0603WAF5101T5E

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-stusb4500qtr, 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-rd-0603waf5101t5e
Record kind: subordinate
Manufacturer part number: 0603WAF5101T5E
Manufacturer: UNI-ROYAL
Function: external USB-C Rd resistor
LCSC ID: C23186
Package: R0603
Inventory line: line-c23186
Also known as: external Rd
Owner skill: component-stusb4500qtr
Fit: DNP or hand-fit
Identity state: UNRESOLVED
Source state: SOURCE UNAVAILABLE
Coverage: 1 open of 3 published

Component references

Selected document

Specification PDF

UNI-ROYAL Thick Film Chip Resistors

Authority: MANUFACTURER_PRIMARY
Availability: AVAILABLE

Footprint preview

Package model

Shared footprint package: R0603

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-p	`R17`
board-p	`R18`

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.

exact orderable identity and project placement

Coverage ID: cov-rd-identity
Status: COVERED

Reason: UNI-ROYAL part-number system confirms the exact MPN and ratings; immutable project generator confirms C23186 placements and DNP state

Facts in this domain:

fact-rd-manufacturer
fact-rd-value
fact-rd-tolerance
fact-rd-power
fact-rd-tcr
fact-rd-voltage-cap
fact-rd-rcwv-squared
fact-rd-pinout
fact-rd-fit-state

manufacturer-primary electrical and mechanical specification

Coverage ID: cov-rd-primary
Status: COVERED

Reason: UNI-ROYAL SMD-SP-001 V.7 confirms 0603 size, 5.1 kOhm, 1%, 0.1 W, TCR and voltage ratings

Facts in this domain:

fact-rd-manufacturer
fact-rd-value
fact-rd-tolerance
fact-rd-power
fact-rd-tcr
fact-rd-voltage-cap
fact-rd-rcwv-squared
fact-rd-pinout
fact-rd-fit-state

as-built fit state and external-Rd interaction

Coverage ID: cov-rd-fit
Status: OPEN

Reason: Generator marks R17/R18 DNP and selects fitted CCDB bridges, but the assembled fit state and parallel-termination behavior require inspection/bench confirmation

Facts in this domain: none are recorded against it.

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.

ABSOLUTE_MAXIMUM

A never-exceed limit. Reaching it may damage the part; it is not an operating target and there is no margin implied by it.

Fact	Value	Unit	Conditions	Verdict	Provenance	Evidence
`fact-rd-voltage-cap`	75	`V`	0603 package-family maximum-working-voltage cap only; exact-part RCWV is the lower of this cap and sqrt(P times R)	PASS - primary-source confirmed	PRIMARY-SPEC	src-rd-uniroyal-smd-sp-001: printed page 5, Ratings table, 0603 row and RCWV note

RECOMMENDED_OPERATION

The range the manufacturer intends the part to be used in. Always narrower than the absolute maximum.

Fact	Value	Unit	Conditions	Verdict	Provenance	Evidence
`fact-rd-power`	0.1	`W`	0603 WA normal-size rating, ambient at or below 70 C; derate above 70 C	PASS - primary-source confirmed	PRIMARY-SPEC	src-rd-uniroyal-smd-sp-001: printed pages 2 and 4, Part No. System and resistance-range table
`fact-rd-rcwv-squared`	510	`V2`	P times R for the exact 0.1 W, 5.1 kOhm part; sqrt gives about 22.6 V, below the 75 V package cap	PASS - primary-source confirmed	CALCULATED	src-rd-uniroyal-smd-sp-001: printed page 5, RCWV equation and 0603 ratings row; calculated from fact-rd-power and fact-rd-value

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-rd-value`	5.1	`kOhm`	5101 code: 510 times 10 to power 1	PASS - primary-source confirmed	PRIMARY-SPEC	src-rd-uniroyal-smd-sp-001: printed page 2, Section 2.4 resistance-value code
`fact-rd-tolerance`	1	`%`	F tolerance code	PASS - primary-source confirmed	PRIMARY-SPEC	src-rd-uniroyal-smd-sp-001: printed page 2, Section 2.3 tolerance code
`fact-rd-tcr`	100	`ppm/C`	0603 resistance above 10 Ohm, measured from 25 C to test temperature	PASS - primary-source confirmed	PRIMARY-SPEC	src-rd-uniroyal-smd-sp-001: printed page 6, Temperature Coefficient table, 0603 row

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-rd-manufacturer`	UNI-ROYAL	`NONE`	exact 0603WAF5101T5E part-number decode	PASS - primary-source confirmed	PRIMARY-SPEC	src-rd-uniroyal-smd-sp-001: title block and Section 2 Part No. System
`fact-rd-pinout`	two-terminal non-polar resistor; pads 1 and 2	`NONE`	project symbol and R0603 footprint	NOT APPLICABLE	PROJECT-CHOICE	src-rd-board-p-generator: COMPONENTS rows R17/R18 and R0603 footprint selection
`fact-rd-fit-state`	DNP at R17/R18; internal dead-battery Rd path selected through fitted CCDB bridges	`NONE`	current generator connectivity; do not fit external Rd without re-auditing parallel termination	NEEDS BENCH	PROJECT-CHOICE	src-rd-board-p-generator: COMPONENTS rows R17/R18 and NETS CC1/CC2 with CC1DB/CC2DB

Calculation dependencies

These values were derived from other recorded facts rather than read from a document. The expression and every input are published so the number can be recomputed instead of trusted. A derived value is never stronger than the weakest fact it depends on.

Fact	Expression	Depends on
`fact-rd-rcwv-squared`	`fact_rd_power * fact_rd_value * 1000`	`fact-rd-power`, `fact-rd-value`

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-rd-0603waf5101t5e

Symbol: 0603WAF5101T5E
Footprint: R0603
Pins: 2

Pin assignments

Symbol pin	Name	Footprint pad	Function
`1`	`1`	`1`	CC1/CC2 when fitted
`2`	`2`	`2`	ground when fitted

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-stusb-external-rd

Records involved: rec-stusb4500qtr, rec-rd-0603waf5101t5e (this record)
Conditions: R17/R18 are DNP CC-to-GND external Rd options while R19/R20 fit CCDB bridges; fitting both may parallel Rd and is prohibited until the exact intended topology and resistance tolerance are re-audited
Verdict: NEEDS BENCH

Facts this rests on:

fact-stusb-ccdb on STUSB4500QTR
fact-rd-value
fact-rd-tolerance
fact-rd-fit-state

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.

rule-usb-pd-nvm-load-switch — usb-pd-nvm-load-switch — rule verdict: UNSOURCED — How the power-delivery controller's stored configuration and its enable output drive the load switch, through every state from detached to fault.

All cross-component rules

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.

UNI-ROYAL Thick Film Chip Resistors

Source ID: src-rd-uniroyal-smd-sp-001
Document number: SMD-SP-001
Revision: V.7
Document date: 2022-10-13
Retrieved: 2026-08-02
Authority: MANUFACTURER_PRIMARY
Locator: Section 2, Part No. System codes 2.1 through 2.5; ratings table row 0603; temperature-coefficient table row 0603
Printed page: 2
Availability: AVAILABLE
Document URL: https://www.uni-royal.cn/en/images/userfile/file/1668661899c56505e6d9ab55c7.pdf

Board P generated schematic specification

Source ID: src-rd-board-p-generator
Document number: board-p-spec
Revision: 410bc1a342286dd6c205d6dcec0f248b8a963987
Document date: 2026-08-01
Retrieved: 2026-08-02
Authority: PROJECT_GENERATOR
Locator: COMPONENTS rows R17/R18 and NETS rows CC1/CC2 with CC1DB/CC2DB
Printed page: source
Availability: AVAILABLE
Document URL: https://raw.githubusercontent.com/Takazudo/zudo-led-lamp/410bc1a342286dd6c205d6dcec0f248b8a963987/scripts/schgen/board\_p\_spec.py

LCSC manufacturer-attributed mirror for C23186

Source ID: src-rd-c23186
Document number: C23186
Revision: undated
Document date: UNSOURCED
Retrieved: 2026-08-02
Authority: DISTRIBUTOR_IDENTITY
Locator: Document title block and distributor orderable row C23186
Printed page: 1
Availability: SOURCE UNAVAILABLE
Document URL: https://www.lcsc.com/datasheet/C23186.pdf

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
`NEEDS BENCH`	Cannot be settled from documents. It needs measurement on real hardware before it can be relied on.
`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
`CALCULATED`	Derived arithmetically from other facts listed here. The expression and every input are shown, so the number can be recomputed rather than trusted.
`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
`ABSOLUTE_MAXIMUM`	A never-exceed limit. Reaching it may damage the part; it is not an operating target and there is no margin implied by it.
`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.
`RECOMMENDED_OPERATION`	The range the manufacturer intends the part to be used in. Always narrower than the absolute maximum.

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
`DISTRIBUTOR_IDENTITY`	A distributor listing. Establishes which part this is, nothing more.
`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-stusb4500qtr