RLP25FEER200
200 mOhm current-sense resistor — TA-I Technology — C459674 — board-l RS1 — rec-rlp25feer200
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: RLP25FEER200
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-al8860mp-13, 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-rlp25feer200Record kind: subordinate
Manufacturer part number:
RLP25FEER200Manufacturer: TA-I Technology
Function: 200 mOhm current-sense resistor
LCSC ID:
C459674Package:
R2512Inventory line:
line-c459674Also known as:
AL8860 sense resistorOwner skill:
component-al8860mp-13Fit: Fitted
Identity state: UNRESOLVED
Source state: SOURCE UNAVAILABLE
Coverage: 1 open of 2 published
Component references
Selected document
Specification PDF
Footprint preview
R2512. 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 | RS1 |
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.
resistance-power-tcr-overload
Coverage ID:
cov-rlp25-ratingsStatus: COVERED
Reason: fact-rlp25-resistance through fact-rlp25-power-margin
Facts in this domain:
project-pulse-load
Coverage ID:
cov-rlp25-project-pulseStatus: OPEN
Reason: The generated design does not define startup/fault pulse energy or local resistor temperature; verify against the 5x/5 s test and derating.
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.
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-rlp25-power | 2 | W | E power code with applicable derating | PASS - primary-source confirmed | PRIMARY-SPEC | src-rlp25-spec: Section Product Identification table row E power |
fact-rlp25-temperature | -55 to +170 C; power derates above 70 C | NONE | RLP series operation and derating curve | PASS - primary-source confirmed | PRIMARY-SPEC | src-rlp25-spec: Section Ratings table row Operation Temperature Range and Figure 5.1 Derating Curve |
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-rlp25-resistance | 0.2 | ohm | R200 nominal resistance code | PASS - primary-source confirmed | PRIMARY-SPEC | src-rlp25-spec: Section Product Identification table row R200 |
fact-rlp25-tolerance | 0.01 | ratio | F initial resistance tolerance at reference conditions | PASS - primary-source confirmed | PRIMARY-SPEC | src-rlp25-spec: Section Product Identification table row F |
fact-rlp25-tcr | 50 | ppm/C | magnitude, +25 C to +125 C test | PASS - primary-source confirmed | PRIMARY-SPEC | src-rlp25-spec: Section Ratings table row Temperature Coefficient of Resistance |
TRANSIENT
Behaviour during a short event — startup, a switching edge, a fault or a surge.
| Fact | Value | Unit | Conditions | Verdict | Provenance | Evidence |
|---|---|---|---|---|---|---|
fact-rlp25-overload | 5 | times-rated-power | short-time overload for 5 seconds; post-test resistance shift limit applies | PASS - primary-source confirmed | PRIMARY-SPEC | src-rlp25-spec: Section Reliability Tests table row Short time overload |
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-rlp25-manufacturer | TA-I Technology | NONE | exact RLP25FEER200 orderable identity | PASS - primary-source confirmed | PRIMARY-SPEC | src-rlp25-spec: title block and Section Product Identification table row RLP25 |
fact-rlp25-resistance-min | 0.198 | ohm | minimum initial resistance at reference conditions; TCR and self-heating excluded | NEEDS BENCH | CALCULATED | src-rlp25-spec — CALCULATED: fact-rlp25-resistance times one minus fact-rlp25-tolerance |
fact-rlp25-resistance-max | 0.202 | ohm | maximum initial resistance at reference conditions; TCR and self-heating excluded | NEEDS BENCH | CALCULATED | src-rlp25-spec — CALCULATED: fact-rlp25-resistance times one plus fact-rlp25-tolerance |
fact-rlp25-project-nets | RS1.1=V15; RS1.2=SET | NONE | current generated Board L source | NOT APPLICABLE | PROJECT-CHOICE | src-rlp25-generator: COMPONENTS table row RS1 and NETS rows V15 and SET |
fact-rlp25-worst-power | 0.05462626262626262 | W | upper calculated mean LED current through the same minimum initial 1% resistance that produces that current; TCR, PCB temperature, and pulse loading unresolved | NEEDS BENCH | CALCULATED | src-rlp25-spec — CALCULATED: fact-al8860-current-max squared times fact-rlp25-resistance-min |
fact-rlp25-power-margin | 1.9453737373737374 | W | reference-condition initial-tolerance calculation before PCB/ambient derating and pulse qualification | NEEDS BENCH | CALCULATED | src-rlp25-spec — CALCULATED: fact-rlp25-power minus fact-rlp25-worst-power |
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-rlp25-resistance-min | fact_rlp25_resistance * (1 - fact_rlp25_tolerance) | fact-rlp25-resistance, fact-rlp25-tolerance |
fact-rlp25-resistance-max | fact_rlp25_resistance * (1 + fact_rlp25_tolerance) | fact-rlp25-resistance, fact-rlp25-tolerance |
fact-rlp25-worst-power | fact_al8860_current_max * fact_al8860_current_max * fact_rlp25_resistance_min | fact-al8860-current-max on AL8860MP-13, fact-rlp25-resistance-min |
fact-rlp25-power-margin | fact_rlp25_power - fact_rlp25_worst_power | fact-rlp25-power, fact-rlp25-worst-power |
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-rlp25
Symbol:
RLP25FEER200Footprint:
R2512Pins: 2
Pin assignments
| Symbol pin | Name | Footprint pad | Function |
|---|---|---|---|
1 | V15 | 1 | high-side supply terminal |
2 | SET | 2 | sense terminal |
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-al8860-power-stage
Records involved:
rec-al8860mp-13,rec-rlp25feer200(this record),rec-fxl0630-330-m,rec-ro-ss26Conditions: full LED-string VF/temperature, V15 transient, layout parasitics, and PWM operating envelope
Verdict: NEEDS BENCH
Facts this rests on:
fact-al8860-peak-currenton AL8860MP-13fact-fxl-isat-marginon FXL0630-330-Mfact-ss26-voltage-marginon SS26fact-ss26-current-marginon SS26
int-rlp25-sense
Records involved:
rec-rlp25feer200(this record)Conditions: steady and pulse load with local temperature/derating
Verdict: NEEDS BENCH
Facts this rests on:
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-al8860-led-stage— al8860-led-stage — rule verdict: NEEDS BENCH — How the LED driver, its sense resistor, inductor, catch diode and per-branch ballast behave together across the LED forward-voltage, tolerance and temperature envelope.
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.
High Power Current Sensing Resistors RLP Series
Source ID:
src-rlp25-specDocument number: TRLP-250S008L
Revision: not stated
Document date: 2024-12-03
Retrieved: 2026-08-02
Authority: MANUFACTURER_PRIMARY
Locator: Section 3 Product Identification table and Section 5 Reliability Tests table
Printed page: 1/8
Availability: AVAILABLE
Document URL: https:
/ / www. tai. com. tw/ files/ uploads/ Prod\ _ spec/ RLP25. pdf
Board L generated schematic specification
Source ID:
src-rlp25-generatorDocument number: scripts/schgen/board_l_spec.py
Revision: 410bc1a342286dd6c205d6dcec0f248b8a963987
Document date: 2026-08-02
Retrieved: 2026-08-02
Authority: PROJECT_GENERATOR
Locator: COMPONENTS table row RS1 and NETS rows V15 and SET
Printed page: source file
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 |
|---|---|
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 |
|---|---|
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. |
TRANSIENT | Behaviour during a short event — startup, a switching edge, a fault or a surge. |
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_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-al8860mp-13