# GBU8J-BP

**MCC Micro Commercial Components** · Bridge Rectifiers · GBU

GBU8J-BP from MCC Micro Commercial Components, 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 of the bridge, the leftmost lead marked "-" in the package drawing; GBU8J is rated 600V peak reverse and 8.0A average forward current at TC=100°C. |
| 2 | 2 | passive | AC input lead marked "~" in the package drawing; GBU8J is rated 420V maximum RMS voltage. |
| 3 | 3 | passive | Second AC input lead marked "~" in the package drawing; GBU8J is rated 420V maximum RMS voltage. |
| 4 | + | passive | DC positive output of the bridge, the rightmost lead marked "+" in the package drawing; GBU8J is rated 600V maximum DC blocking voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC Micro Commercial Components |
| 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 |
|---|---|---|---|---|---|---|---|
| Average Forward Current | IF(AV) |  |  | 8 | A | TC = 100°C | 1 |
| Peak Forward Surge Current | IFSM |  |  | 220 | A | 8.3ms, Half Sine | 1 |
| Peak Forward Surge Current (1.0ms surge rating, 440A value) | IFSM |  |  | 440 | A | 1.0ms, Half Sine, TJ = 25°C | 1 |
| Peak Forward Surge Current (1.0ms surge rating, 400A value) | IFSM |  |  | 400 | A | 1.0ms, Half Sine, TJ = 125°C | 1 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 1 | V | IFM = 4.0A | 1 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 1.2 | V | IFM = 8.0A; TJ = 25°C | 1 |
| Maximum DC Reverse Current At Rated DC Blocking Voltage (TJ = 25°C) | IR |  |  | 5 | μA | Rated DC Blocking Voltage, TJ = 25°C | 1 |
| Maximum DC Reverse Current At Rated DC Blocking Voltage (TJ = 125°C) | IR |  |  | 500 | μA | Rated DC Blocking Voltage, TJ = 125°C | 1 |
| Rating for fusing | I2t |  |  | 200 | A2s | t < 8.3ms | 1 |
| Rating for fusing | I2t |  |  | 96.8 | A2s | t < 1.0ms | 1 |
| Maximum Recurrent Peak Reverse Voltage (GBU8J) |  |  |  | 600 | V |  | 1 |
| Maximum RMS Voltage (GBU8J) |  |  |  | 420 | V |  | 1 |
| Maximum DC Blocking Voltage (GBU8J) |  |  |  | 600 | V |  | 1 |
| Operating Junction Temperature Range | TJ | -55 |  | 150 | °C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | °C |  | 1 |
| Typical Thermal Resistance Junction To Case |  |  | 2.2 |  | °C/W | Device mounted on 75mm x 45mm x 5.5mm Aluminum Plate Heatsink (Note 2) | 1 |
| Typical Thermal Resistance Junction To Ambient |  |  | 20 |  | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `GBU8J-BP`
- Footprint: `Diode_THT:Diode_Bridge_Vishay_GBU`
- 3D model: GBU (KiCad packages3D, STEP)
- 3D model files: `gbu8j-bp-etched.step` / `gbu8j-bp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gbu8j-bp.step` / `gbu8j-bp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC Micro Commercial Components datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590927025379229696) (3 pp, sha256 `3b035fdfab8f39ea`, retrieved 2026-10-15, 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/gbu8j-bp-datasheet.pdf)