NCP18XH103F03RB

10 kOhm NTC thermistor — Murata — C13564 — board-l RT1 — rec-c13564

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: NCP18XH103F03RB

Identity

Record ID: rec-c13564
Record kind: standalone
Manufacturer part number: NCP18XH103F03RB
Manufacturer: Murata
Function: 10 kOhm NTC thermistor
LCSC ID: C13564
Package: R0603
Inventory line: line-c13564
Also known as: Board L 10 kOhm NTC
Owner skill: component-murata-ncp18xh103f03rb
Fit: Fitted
Identity state: VERIFIED
Source state: AVAILABLE
Coverage: 5 open of 6 published

Component references

Selected document

Specification PDF

Murata NTC Thermistors Current Part List

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-l	`RT1`

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.

older-catalog-nominal-context-and-project-divider-topology

Coverage ID: cov-c13564-context
Status: OPEN

Reason: The 3 genuinely unsourced older-catalog facts (fact-c13564-power, fact-c13564-temperature, fact-c13564-package) retain only lower-authority catalog context and are UNSOURCED, and the generator-derived divider topology fact (fact-c13564-topology) is UNSOURCED pending independent confirmation. The current-primary PASS facts (fact-c13564-resistance, fact-c13564-beta, fact-c13564-max-current, fact-c13564-lifecycle) are confirmed by the current Murata part list and do not belong to this domain.

Facts in this domain:

fact-c13564-power
fact-c13564-temperature
fact-c13564-package
fact-c13564-topology

Blocked by: these facts must be resolved before the domain can close. Each is listed in full under Facts.

fact-c13564-power
fact-c13564-temperature
fact-c13564-package
fact-c13564-topology

guaranteed-full-resistance-temperature-table

Coverage ID: cov-c13564-rt
Status: OPEN

Reason: fact-c13564-curve-caveat: exact current guaranteed table unavailable

Facts in this domain:

fact-c13564-curve-caveat

Blocked by: these facts must be resolved before the domain can close. Each is listed in full under Facts.

fact-c13564-curve-caveat

installed-dissipation-factor-and-self-heating

Coverage ID: cov-c13564-selfheat
Status: OPEN

Reason: a nominal Typical Dissipation Constant value now exists in the older catalog mirror (fact-c13564-dissipation) but it is UNSOURCED/unverified nominal context and does not guarantee installed thermal coupling on this PCB

Facts in this domain:

fact-c13564-dissipation

Blocked by: these facts must be resolved before the domain can close. Each is listed in full under Facts.

fact-c13564-dissipation

thermal-time-constant-and-placement-response

Coverage ID: cov-c13564-time
Status: OPEN

Reason: no exact retained time constant or installed placement measurement

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.

current-nrnd-lifecycle-confirmation

Coverage ID: cov-c13564-life
Status: COVERED

Reason: fact-c13564-lifecycle is confirmed by the current manufacturer-primary part list

Facts in this domain:

fact-c13564-lifecycle

firmware-conversion-and-thresholds

Coverage ID: cov-c13564-fw
Status: OPEN

Reason: conversion algorithm, ADC configuration and thresholds are absent

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-c13564-power`	100	`mW`	rated electric power in older catalog; installed self-heating remains unknown	UNSOURCED	UNVERIFIED	src-c13564-catalog: section physical page 11 exact row, rated electric power
`fact-c13564-temperature`	-40 to 125 C	`NONE`	operating range in older catalog	UNSOURCED	UNVERIFIED	src-c13564-catalog: section physical page 11 exact row, operating temperature

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-c13564-max-current`	0.1	`mA`	Murata's own column header for this value is an OPERATING maximum, not a measurement/test-current specification (Japanese header translates to 'Maximum Operating Current, 25C'); corroborated by older catalog src-c13564-catalog physical page index 7, which defines the parallel English term 'Permissive Operating Current' as the current level that keeps the thermistor's own self-heating temperature rise to max. 1C; installed divider current must still be checked against this operating limit across temperature	PASS - primary-source confirmed	PRIMARY-SPEC	src-c13564-current: current part-list table row NCP18XH103F03RB, maximum-current column header (translated from Japanese) reads 'Maximum Operating Current (25C)', identical wording repeated on every page (physical indices 0-4) of the document

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-c13564-resistance`	10	`kOhm`	at 25 C, plus/minus 1%, current part list	PASS - primary-source confirmed	PRIMARY-SPEC	src-c13564-current: current part-list table row NCP18XH103F03RB resistance columns
`fact-c13564-beta`	3380	`K`	B25/50 plus/minus 1%; B25/85 is typical 3434 K; neither is a guaranteed full R-T table	PASS - primary-source confirmed	PRIMARY-SPEC	src-c13564-current: current part-list table row NCP18XH103F03RB B-constant columns

TYPICAL_CURVE

A representative figure read from a characteristic curve. Typical values are not guaranteed and vary part to part.

Fact	Value	Unit	Conditions	Verdict	Provenance	Evidence
`fact-c13564-curve-caveat`	Exact guaranteed R-T table, installed dissipation factor and thermal time constant are not retained	`NONE`	do not substitute beta-only conversion for guaranteed exact-part behavior; dated retrieval attempt 2026-08-02 found no guaranteed exact R-T table and no thermal time constant for this exact part in any reachable primary or mirror source; a nominal Typical Dissipation Constant value was found for the exact part row in the older catalog mirror (see fact-c13564-dissipation) but that is explicitly typical/nominal, not guaranteed, and not the installed value	UNSOURCED	UNVERIFIED	src-c13564-current: current part-list table has no dissipation-constant, time-constant, or full R-T columns; src-c13564-catalog physical page index 7 basic-characteristics section table provides only a generic Typical R/R25-vs-temperature curve for B=3450/3900/4100 families (not this part's B=3380) and defines the terms without giving this part's numeric thermal time constant; Murata SimSurfing tool (murata.com) attempted 2026-08-02 returned only a client-rendered app shell with no server-side data reachable via curl/WebFetch
`fact-c13564-dissipation`	1	`mW/C`	typical nominal dissipation constant for the exact NCP18XH103F03RB row in the older catalog; catalog defines the term as the electric power needed to raise the thermistor's own temperature 1C by self-heating; not the installed dissipation factor on this PCB and not a guaranteed spec	UNSOURCED	UNVERIFIED	src-c13564-catalog: section physical page index 11 exact-part ratings table row NCP18XH103F03RB, column 'Typical Dissipation Constant (25C) (mW/C)'

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-c13564-manufacturer`	Murata	`NONE`	exact NCP18XH103F03RB current part-list row	PASS - primary-source confirmed	PRIMARY-SPEC	src-c13564-current: current part-list table row NCP18XH103F03RB
`fact-c13564-package`	1.6 plus/minus 0.15 by 0.8 plus/minus 0.15 mm chip, nominal 0603	`NONE`	NCP18 dimensions in older catalog	UNSOURCED	UNVERIFIED	src-c13564-catalog: section NCP18 dimensions figure and table
`fact-c13564-lifecycle`	NRND	`NONE`	current Murata part-list status for exact NCP18XH103F03RB	PASS - primary-source confirmed	PRIMARY-SPEC	src-c13564-current: current part-list table row NCP18XH103F03RB status column
`fact-c13564-topology`	RT1 from NTC_SENSE to GND; R26 from V3P3 to NTC_SENSE; C24 from NTC_SENSE to GND; U3.11 senses NTC_SENSE	`NONE`	generated Board L netlist	UNSOURCED	PROJECT-CHOICE	src-c13564-generator: section NETS V3P3, NTC_SENSE and GND

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-c13564

Symbol: NCP18XH103F03RB
Footprint: R0603
Pins: 2

Pin assignments

Symbol pin	Name	Footprint pad	Function
`1`	`terminal-1`	`1`	NTC_SENSE
`2`	`terminal-2`	`2`	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-c13564-divider

Records involved: rec-c13564 (this record)
Conditions: ADC conversion needs exact R-T data, pull-up tolerance, V3P3/VREF, acquisition time, RC settling and firmware algorithm
Verdict: NEEDS BENCH

Facts this rests on:

fact-c13564-resistance
fact-c13564-beta
fact-c13564-topology
fact-c13564-curve-caveat

int-c13564-thermal

Records involved: rec-c13564 (this record)
Conditions: Validate self-heating, PCB/air coupling, thermal lag and thresholds in the installed enclosure
Verdict: NEEDS BENCH

Facts this rests on:

fact-c13564-power
fact-c13564-temperature
fact-c13564-curve-caveat
fact-c13564-dissipation

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-ntc-adc-firmware — ntc-adc-firmware — rule verdict: UNSOURCED — How the thermistor, its divider, the analog-to-digital input and the firmware that reads them combine into a temperature the design can act on.

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.

Murata NTC Thermistors Current Part List

Source ID: src-c13564-current
Document number: component-list-ntc-2508
Revision: 2025-09 current list
Document date: 2025-09-30
Retrieved: 2026-08-02
Authority: MANUFACTURER_PRIMARY
Locator: Current part-list table exact row NCP18XH103F03RB
Printed page: 5/5
Availability: AVAILABLE
Document URL: https://www.murata.com/-/media/webrenewal/tool/library/common-pdf/static-model/component-list-ntc-2508.ashx?cvid=20250930011345000000\&la=ja-jp

Murata NTC Thermistors catalog

Source ID: src-c13564-catalog
Document number: Cat.No.R44E-15
Revision: R44E-15
Document date: 2012-12-17
Retrieved: 2026-08-02
Authority: MANUFACTURER_MIRROR
Locator: NCP18 series ratings table, exact NCP18XH103F03RB row
Printed page: 10
Availability: AVAILABLE
Document URL: https://datasheet.lcsc.com/lcsc\_datasheet\_1809202230\_Murata-Electronics-NCP18XH103F03RB\_C13564.pdf

Board L generated schematic specification

Source ID: src-c13564-generator
Document number: board-l-spec
Revision: 410bc1a342286dd6c205d6dcec0f248b8a963987
Document date: 2026-08-01
Retrieved: 2026-08-02
Authority: PROJECT_GENERATOR
Locator: Source section PARTS RT1/R26/C24 and NETS V3P3/NTC_SENSE/GND
Printed page: source
Availability: AVAILABLE
Document URL: https://raw.githubusercontent.com/Takazudo/zudo-led-lamp/410bc1a342286dd6c205d6dcec0f248b8a963987/scripts/schgen/board\_l\_spec.py

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
`PASS - primary-source confirmed`	Confirmed against the manufacturer's own document for this exact part.
`UNSOURCED`	No accepted source backs this value yet. Treat it as a claim, not a fact.

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.
`UNVERIFIED`	Recorded, but not yet backed by an accepted source.

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.
`TYPICAL_CURVE`	A representative figure read from a characteristic curve. Typical values are not guaranteed and vary part to part.

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 authority

Recorded term	What it means
`MANUFACTURER_MIRROR`	A copy of a manufacturer document hosted elsewhere. Usable, but weaker than the manufacturer's own copy.
`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
`VERIFIED`	The exact orderable part has been confirmed against a source.

Source state

Recorded term	What it means
`AVAILABLE`	At least one document backing this line was 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-murata-ncp18xh103f03rb