component
GBU408A
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech 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
markdownGBU408A
Yangzhou Yangjie Elec Tech · Bridge Rectifiers · GBU
GBU408A from Yangzhou Yangjie Elec Tech, 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 | DC negative output terminal of the bridge, the leftmost lead marked '-' on the body. |
| 2 | AC1 | passive | AC input terminal, marked 'AC' on the body (second lead from the left). |
| 3 | AC2 | passive | AC input terminal, marked 'AC' on the body (third lead from the left). |
| 4 | + | passive | DC positive output terminal of the bridge, the rightmost lead marked '+' on the body. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive peak reverse voltage | VRRM | 800 | V | 1 | |||
| Average rectified output current, with heatsink | IO | 4 | A | @60Hz sine wave, R-load, Tc=108℃ | 1 | ||
| Average rectified output current, without heatsink | IO | 2.3 | A | @60Hz sine wave, R-load, Ta=25℃ | 1 | ||
| Surge (non-repetitive) forward current | IFSM | 150 | A | @60Hz half sine wave, 1 cycle, Tj=25℃ | 1 | ||
| Current squared time, per diode | I2t | 93 | A2S | @1ms≤t≤8.3ms Tj=25℃, rating of per diode | 1 | ||
| Storage temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Junction temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Dielectric strength, terminals to case | Vdis | 2.5 | KV | @terminals to case, AC 1 minute | 1 | ||
| Mounting torque | Tor | 8 | kg·cm | Recommended torque 5 kg·cm | 1 | ||
| Maximum instantaneous forward voltage drop per diode | VF | 1 | V | IFM=2.0A | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage per diode | IRRM | 5 | μA | VRM=VRRM | 1 | ||
| Thermal resistance, junction to ambient, without heatsink | RθJ-A | 26 | ℃/W | Without heatsink | 2 | ||
| Thermal resistance, junction to case, with heatsink | RθJ-C | 5.5 | ℃/W | With heatsink | 2 |
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 | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
GBU408A - Footprint:
Diode_THT:Diode_Bridge_Vishay_GBU - 3D model: GBU (KiCad packages3D, STEP)
- 3D model files:
gbu408a-etched.step/gbu408a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gbu408a.step/gbu408a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (4 pp, sha256
51185ed77a88145f, 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).