component
KBU8J
Public Made by Adomby adom
LGE Bridge Rectifiers, KBU. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownKBU8J
LGE · Bridge Rectifiers · KBU
KBU8J from LGE, in a KBU. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | - | passive | DC negative output of the bridge, marked "-" on the body outline; the part is rated 8.0 A average output current. |
| 2 | AC1 | passive | AC input of the bridge, marked "AC" on the body outline; KBU8J is rated 420 V RMS maximum. |
| 3 | AC2 | passive | Second AC input of the bridge, marked "AC" on the body outline; KBU8J is rated 420 V RMS maximum. |
| 4 | + | passive | DC positive output of the bridge, marked "+" on the body outline; KBU8J has 600 V maximum DC blocking voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | KBU |
| Category | Diodes |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum recurrent peak reverse voltage (KBU8J column) | VRRM | 600 | V | 1 | |||
| Maximum RMS voltage (KBU8J column) | VRMS | 420 | V | 1 | |||
| Maximum DC blocking voltage (KBU8J column) | VDC | 600 | V | 1 | |||
| Maximum average forward output current | IF(AV) | 8 | A | @TA=25℃ | 1 | ||
| Peak forward surge current | IFSM | 200 | A | 8.3ms single half-sine-wave superimposed on rated load | 1 | ||
| Operating junction temperature range | TJ | -55 | 150 | ℃ | 1 | ||
| Storage temperature range | TSTG | -55 | 150 | ℃ | 1 | ||
| Maximum instantaneous forward voltage | VF | 1 | V | @4.0A; @8.0A | 1 | ||
| Maximum reverse current at rated DC blocking voltage | IR | 5 | μA | @TA=25℃, at rated DC blocking voltage | 1 | ||
| Maximum reverse current at rated DC blocking voltage | IR | 0.5 | mA | @TA=100℃, at rated DC blocking voltage | 1 | ||
| I²t rating for fusing | I²t | 166 | A²S | @Tj=25℃ | 1 | ||
| Typical thermal resistance, junction to ambient | RθJA | 18 | 1 | ||||
| Typical thermal resistance, junction to case | RθJC | 3 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
KBU8J - Footprint:
Diode_THT:Diode_Bridge_Vishay_KBU - 3D model: KBU (KiCad packages3D, STEP)
- 3D model files:
kbu8j-etched.step/kbu8j-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kbu8j.step/kbu8j.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (2 pp, sha256
12162821449b17b7, retrieved 2026-10-21, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).