# GBU608A

**Yangzhou Yangjie Elec Tech** · Bridge Rectifiers · GBU

GBU608A 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 | Negative DC output terminal of the bridge, marked "-" on the body; the datasheet's 1000 V-class family rates GBU608A at VRRM 800 V and IO 6.0 A with heatsink (Tc=110 °C). |
| 2 | AC1 | passive | AC input terminal marked "~"/AC on the body; GBU608A is rated VRRM 800 V with IFSM 175 A surge. |
| 3 | AC2 | passive | Second AC input terminal marked "~"/AC on the body; GBU608A is rated VRRM 800 V with IFSM 175 A surge. |
| 4 | + | passive | Positive DC output terminal of the bridge, marked "+" on the body; average rectified current is 6.0 A with heatsink (Tc=110 °C) or 2.8 A without heatsink (Ta=25 °C). |

## 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 |
|---|---|---|---|---|---|---|---|
| Maximum instantaneous forward voltage drop per diode | VF |  |  | 1 | V | IFM=3.0A | 1 |
| Maximum DC reverse current at rated DC blocking voltage per diode | IRRM |  |  | 5 | μA | VRM=VRRM | 1 |
| Repetitive peak reverse voltage | VRRM |  |  | 800 | V |  | 1 |
| Average rectified output current, with heatsink | IO |  |  | 6 | A | @60Hz sine wave, R-load, Tc=110℃, with heatsink | 1 |
| Average rectified output current, without heatsink | IO |  |  | 2.8 | A | @60Hz sine wave, R-load, Ta=25℃, without heatsink | 1 |
| Surge (non-repetitive) forward current | IFSM |  |  | 175 | A | @60Hz half sine wave, 1 cycle, Tj=25℃ | 1 |
| Current squared time | I²t |  |  | 127 | A²S | @1ms≤t≤8.3ms, Tj=25℃, rating per diode | 1 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Junction temperature | Tj | -55 |  | 150 | ℃ |  | 1 |
| Dielectric strength | Vdis |  |  | 2.5 | KV | @ terminals to case, AC 1 minute | 1 |
| Mounting torque | Tor |  |  | 8 | kg·cm | Recommended torque: 5 kg·cm | 1 |
| Thermal resistance, junction to ambient | RθJ-A |  | 26 |  | ℃/W | Between junction and ambient, without heatsink | 2 |
| Thermal resistance, junction to case | RθJ-C |  | 3.4 |  | ℃/W | Between junction and case, with heatsink | 2 |

## CAD (KiCad official)

- Symbol: `GBU608A`
- Footprint: `Diode_THT:Diode_Bridge_Vishay_GBU`
- 3D model: GBU (KiCad packages3D, STEP)
- 3D model files: `gbu608a-etched.step` / `gbu608a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gbu608a.step` / `gbu608a.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894961064955904) (4 pp, sha256 `d3b8f9fab2ddd312`, retrieved 2026-10-14, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/gbu608a-datasheet.pdf)