component
GBU408
Public Made by Adomby adom
LGE Bridge Rectifiers, GBU. 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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Contents
README
markdownGBU408
LGE · Bridge Rectifiers · GBU
GBU408 from LGE, in a GBU. 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 | Negative DC output terminal of the bridge rectifier (leftmost lead in the package drawing); GBU408 is rated 800 V VRRM and 4.0 A average output current at TC=100°C. |
| 2 | AC | passive | AC input terminal of the bridge rectifier; GBU408 is rated 560 V RMS maximum. |
| 3 | AC | passive | AC input terminal of the bridge rectifier; GBU408 is rated 560 V RMS maximum. |
| 4 | + | passive | Positive DC output terminal of the bridge rectifier (rightmost lead in the package drawing); peak forward surge current is 150.0 A for 8.3 ms. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | GBU |
| 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 | VRRM | 800 | V | 1 | |||
| Maximum RMS voltage | VRMS | 560 | V | 1 | |||
| Maximum DC blocking voltage | VDC | 800 | V | 1 | |||
| Maximum average forward output current | IF(AV) | 4 | A | @TC=100℃ (note1) | 1 | ||
| Peak forward surge current | IFSM | 150 | 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 | @2.0A; @4.0A | 1 | ||
| Maximum reverse current at rated DC blocking voltage | IR | 5 | μA | @TA=25℃ | 1 | ||
| Maximum reverse current at rated DC blocking voltage | IR | 50 | μA | @TA=125℃ | 1 | ||
| I²t rating for fusing | I²t | 93 | A²S | @Tj=25℃ | 1 | ||
| Typical junction capacitance per element | CJ | 45 | pF | Measured at 1.0 MHz and applied reverse voltage of 4.0 volts (note 3) | 1 | ||
| Typical thermal resistance, junction to ambient | RθJA | 22 | ℃/W | Units mounted on P.C.B. with 0.5x0.5in (12x12mm) copper pads and 0.375in (9.5mm) lead length (note 2) | 1 | ||
| Typical thermal resistance, junction to case | RθJC | 4 | ℃/W | Unit case mounted on 1.6x1.6x0.06in (4.0x4.0x0.15cm) Al. plate (note 1) | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | 2. Units mounted on P.C.B. with 0.5x0.5" (12x12mm) copper pads and 0.375" (9.5mm) lead length. | 1 |
CAD (KiCad official)
- Symbol:
GBU408 - Footprint:
Diode_THT:Diode_Bridge_Vishay_GBU - 3D model: GBU (KiCad packages3D, STEP)
- 3D model files:
gbu408-etched.step/gbu408-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gbu408.step/gbu408.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (3 pp, sha256
2f5ef596b5a7e13d, 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).