SMAJ6.5A
400W unidirectional TVS diode, +5V output overvoltage protection (decision a replacement for the SD05) — Brightking — C87267 — board-b TVS2 (fitted) — rec-cand-smaj6-5a-c87267
Generated from the component evidence records — edit the records, not this page.
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: SMAJ6.5A
Identity
| Field | Recorded value |
|---|---|
| Record ID | rec-cand-smaj6-5a-c87267 |
| Record kind | standalone |
| Manufacturer part number | SMAJ6.5A |
| Manufacturer | Brightking |
| Function | 400W unidirectional TVS diode, +5V output overvoltage protection (decision a replacement for the SD05) |
| LCSC ID | C87267 |
| Package | D-FLAT_L4.3-W2.6-LS5.3-RD |
| Inventory line | line-c87267 |
| Also known as | SMAJ6., TVS diode, replacement candidate |
Fit: Fitted
Identity state: VERIFIED
Source state: AVAILABLE
Coverage: 0 open of 3 published
Documents and package
Footprint preview
D-FLAT_L4.3-W2.6-LS5.3-RD. 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.
Datasheet PDF — Brightking SMAJ Series transient voltage suppressors (TVS) data sheet
Selected source ID: src-cand-smaj6-5a-brightking-primary
Authority: MANUFACTURER_PRIMARY
Availability: AVAILABLE
Package footprint: D-FLAT_L4.3-W2.6-LS5.3-RD
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-b | TVS2 |
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.
electrical-limits
Coverage ID: cov-cand-smaj6-5a-electrical-limits · Status: COVERED
Reason: Standoff (6.5 V), breakdown (7.22-7.98 V at 10 mA), clamp (11.2 V at 35.7 A, 10/1000 us), peak pulse power (400 W minimum), leakage (500 uA), and the +5 V rail margin math (1.5 V / 30% at nominal) are recorded from the exact SMAJ6.5A row of the Brightking SMAJ-series datasheet.
Facts in this domain:
package
Coverage ID: cov-cand-smaj6-5a-package · Status: COVERED
Reason: JEDEC DO-214AC (SMA) case is primary-source confirmed; same SMA/D-FLAT footprint family already used by TVS1/TVS3 and D5.
Facts in this domain:
availability
Coverage ID: cov-cand-smaj6-5a-availability · Status: COVERED
Reason: Exact orderable C87267 identity (SMAJ6.5A/TR13) and the dated LCSC stock observation (8,450 units at 2026-08-14) are recorded from the distributor product page.
Facts in this domain:
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: fact-cand-smaj6-5a-leakage
Value: 500 · Unit: uA
Conditions: maximum reverse leakage IR at VRWM 6.5 V, TA=25 C
Verdict: PASS - primary-source confirmed · Provenance: PRIMARY-SPEC
TRANSIENT
Behaviour during a short event — startup, a switching edge, a fault or a surge.
Fact: fact-cand-smaj6-5a-pppm
Value: 400 · Unit: W
Conditions: minimum peak pulse power on the 10/1000 us waveform, duty cycle 0.01%, TA=25 C
Verdict: PASS - primary-source confirmed · Provenance: PRIMARY-SPEC
Evidence: src-cand-smaj6-5a-brightking-primary: page 1 features and maximum ratings table, PPPM row
PROTECTION_STANDOFF
The voltage a protection device is expected to sit at without conducting.
Fact: fact-cand-smaj6-5a-standoff
Value: 6.5 · Unit: V
Conditions: maximum reverse standoff voltage VRWM, exact SMAJ6.5A row, TA=25 C; satisfies the deterministic replacement criterion VRWM >= 6.0 V
Verdict: PASS - primary-source confirmed · Provenance: PRIMARY-SPEC
PROTECTION_BREAKDOWN
The voltage at which a protection device begins to conduct.
Fact: fact-cand-smaj6-5a-breakdown
Value: 7.22 to 7.98 · Unit: V
Conditions: breakdown voltage VBR minimum/maximum at IT 10 mA, TA=25 C
Verdict: PASS - primary-source confirmed · Provenance: PRIMARY-SPEC
PROTECTION_CLAMP
The voltage a protection device clamps to while conducting its rated surge current.
Fact: fact-cand-smaj6-5a-clamp
Value: 11.2 · Unit: V
Conditions: maximum clamping voltage VC at IPP 35.7 A on the 10/1000 us waveform, TA=25 C
Verdict: PASS - primary-source confirmed · Provenance: PRIMARY-SPEC
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: fact-cand-smaj6-5a-manufacturer
Value: Brightking · Unit: NONE
Conditions: exact orderable identity; datasheet title block carries www.brightking.com
Verdict: PASS - primary-source confirmed · Provenance: PRIMARY-SPEC
Fact: fact-cand-smaj6-5a-identity
Value: lcsc=C87267; manufacturer=Brightking; mpn=SMAJ6.5A; variant=unidirectional SMA (DO-214AC); LCSC orderable model SMAJ6.5A/TR13 (TR13 = 13-inch tape/reel packing code); LCSC listing stock 8450 units at 2026-08-14 retrieval · Unit: NONE
Conditions: stable distributor identity binding of the exact orderable; same-name cross-vendor substitution prohibited; supplies no electrical or thermal authority. Replacement-candidate identity for the TVS2 slot; the LCSC orderable model is SMAJ6.5A/TR13 where TR13 is the tape/reel packing suffix on the datasheet part SMAJ6.5A.
Verdict: CONFIRMED - distributor identity only · Provenance: DISTRIBUTOR-IDENTITY
Evidence: src-cand-smaj6-5a-lcsc-identity: product page title row and stock row, retrieved 2026-08-14
Fact: fact-cand-smaj6-5a-package
Value: JEDEC DO-214AC (SMA) · Unit: NONE
Conditions: two-pad SMD case; hand-reworkable and JLCPCB-assemblable; same SMA/D-FLAT footprint family the project already uses for TVS1/TVS3 and D5
Verdict: PASS - primary-source confirmed · Provenance: PRIMARY-SPEC
Evidence: src-cand-smaj6-5a-brightking-primary: page 1 mechanical data, case row 'Case: JEDEC DO-214AC'
Fact: fact-cand-smaj6-5a-plus5-margin
Value: 1.5 · Unit: V
Conditions: standoff margin over the nominal +5 V rail if fitted in the TVS2 slot: VRWM 6.5 V minus 5 V nominal = 1.5 V (30% of nominal); selection is deferred to the decision task
Verdict: PASS - primary-source confirmed · Provenance: CALCULATED
Evidence: src-cand-smaj6-5a-brightking-primary — Calculated from fact-cand-smaj6-5a-standoff and the project +5 V output rail definition (TVS2 replacement slot)
Fact: fact-cand-smaj6-5a-stock
Value: 8450 · Unit: pcs
Conditions: LCSC listed stock at the 2026-08-14 retrieval; volatile distributor state recorded as a dated observation, not a spec claim
Verdict: NOT APPLICABLE · Provenance: UNVERIFIED
Evidence: src-cand-smaj6-5a-lcsc-identity: product page stock row, retrieved 2026-08-14
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: fact-cand-smaj6-5a-plus5-margin
Expression: fact_cand_smaj6_5a_standoff - 5
Depends on:
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-cand-smaj6-5a-c87267
Symbol:
SMAJ6.5A_C87267Footprint:
D-FLAT_L4.3-W2.6-LS5.3-RDPins: 2
Pin assignments
| Symbol pin | Name | Footprint pad | Function |
|---|---|---|---|
1 | C | 1 | cathode (band end) |
2 | A | 2 | anode |
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.
No interaction is published for this record.
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-tvs-clamp-vs-absmax— tvs-clamp-vs-absmax — rule verdict: UNSOURCED
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.
Brightking SMAJ Series transient voltage suppressors (TVS) data sheet
Source ID: src-cand-smaj6-5a-brightking-primary · Authority: MANUFACTURER_PRIMARY
| Field | Recorded value |
|---|---|
| Document number | SMAJ Series |
| Revision | 17-Feb-16 |
| Document date | 2016-02-17 |
| Retrieved | 2026-08-14 |
| Printed page | 2 |
Locator: Page 1 features/maximum ratings (400 W minimum at 10/1000 us waveform, 'Case: JEDEC DO-214AC') and page 2 electrical characteristics table, exact SMAJ6.5A row
Availability: AVAILABLE
Document URL: https:
LCSC product page C87267 — SMAJ6.5A/TR13 | TVS Diodes | Brightking | LCSC
Source ID: src-cand-smaj6-5a-lcsc-identity · Authority: DISTRIBUTOR_IDENTITY
| Field | Recorded value |
|---|---|
| Document number | C87267 |
| Revision | volatile web page (as retrieved) |
| Document date | 2026-08-14 |
| Retrieved | 2026-08-14 |
| Printed page | 1 |
Locator: Product page title row 'SMAJ6.5A/TR13 | TVS Diodes | Brightking | LCSC' and the stock row (8,450 in stock), retrieved 2026-08-14
Availability: AVAILABLE
Document URL: https:
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 |
|---|---|
CONFIRMED - distributor identity only | A distributor listing confirms which part this is, and nothing more. It carries no electrical, thermal or lifetime authority. |
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. |
DISTRIBUTOR-IDENTITY | Taken from a distributor listing. Identity information only. |
PRIMARY-SPEC | Taken from the manufacturer's own specification document. |
UNVERIFIED | Recorded, but not yet backed by an accepted source. |
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. |
PROTECTION_BREAKDOWN | The voltage at which a protection device begins to conduct. |
PROTECTION_CLAMP | The voltage a protection device clamps to while conducting its rated surge current. |
PROTECTION_STANDOFF | The voltage a protection device is expected to sit at without conducting. |
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. |
Source availability
| Recorded term | What it means |
|---|---|
AVAILABLE | The document was retrieved and is on record. |
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. |
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.
No owning bundle is identified in the published model.