component
KBU1004
Public Made by Adomby adom
Changjing Bridge Rectifiers, KBU. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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KBU1004
Changjing · Bridge Rectifiers · KBU
KBU1004 from Changjing, 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 | Positive DC output of the bridge; the schematic shows it as the leftmost terminal, and the part is rated for 10A average rectified output (IO, Tc=100℃). |
| 2 | 2 | passive | AC input terminal of the bridge; VRRM for the KBU10 series is 50V to 1000V, and 1000V is the highest rating. |
| 3 | 3 | passive | Second AC input terminal of the bridge; the surge forward current limit is 240A (IFSM, 60Hz sine, 1 cycle, Tj=25℃). |
| 4 | - | passive | Negative DC output of the bridge; it is the rightmost terminal in the schematic. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 400 | V | KBU1004 column (04) | 1 | ||
| Average Rectified Output Current | IO | 10 | A | 60Hz sine wave, R-load, Tc=100℃ | 1 | ||
| Surge (Non-repetitive) Forward Current | IFSM | 240 | A | 60HZ sine wave, 1 cycle, Tj=25℃ | 1 | ||
| Current Squared Time | I2t | 166 | A2S | 1ms≤t<8.3ms, Tj=25℃, Rating of per diode | 1 | ||
| Storage Temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Junction Temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Peak Forward Voltage | VFM | 1 | V | IFM=5.0A, Pulse measurement, Rating of per diode | 1 | ||
| Peak Reverse Current | IRRM | 10 | μA | VRM=VRRM, Pulse measurement, Rating of per diode | 1 |
CAD (KiCad official)
- Symbol:
KBU1004 - Footprint:
Diode_THT:Diode_Bridge_Vishay_KBU - 3D model: KBU (KiCad packages3D, STEP)
- 3D model files:
kbu1004-etched.step/kbu1004-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);kbu1004.step/kbu1004.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (3 pp, sha256
4eea23a75747292a, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# KBU1004
**Changjing** · Bridge Rectifiers · KBU
KBU1004 from Changjing, 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 | Positive DC output of the bridge; the schematic shows it as the leftmost terminal, and the part is rated for 10A average rectified output (IO, Tc=100℃). |
| 2 | 2 | passive | AC input terminal of the bridge; VRRM for the KBU10 series is 50V to 1000V, and 1000V is the highest rating. |
| 3 | 3 | passive | Second AC input terminal of the bridge; the surge forward current limit is 240A (IFSM, 60Hz sine, 1 cycle, Tj=25℃). |
| 4 | - | passive | Negative DC output of the bridge; it is the rightmost terminal in the schematic. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | | | 400 | V | KBU1004 column (04) | 1 |
| Average Rectified Output Current | IO | | | 10 | A | 60Hz sine wave, R-load, Tc=100℃ | 1 |
| Surge (Non-repetitive) Forward Current | IFSM | | | 240 | A | 60HZ sine wave, 1 cycle, Tj=25℃ | 1 |
| Current Squared Time | I2t | | | 166 | A2S | 1ms≤t<8.3ms, Tj=25℃, Rating of per diode | 1 |
| Storage Temperature | Tstg | -55 | | 150 | ℃ | | 1 |
| Junction Temperature | Tj | -55 | | 150 | ℃ | | 1 |
| Peak Forward Voltage | VFM | | | 1 | V | IFM=5.0A, Pulse measurement, Rating of per diode | 1 |
| Peak Reverse Current | IRRM | | | 10 | μA | VRM=VRRM, Pulse measurement, Rating of per diode | 1 |
## CAD (KiCad official)
- Symbol: `KBU1004`
- Footprint: `Diode_THT:Diode_Bridge_Vishay_KBU`
- 3D model: KBU (KiCad packages3D, STEP)
- 3D model files: `kbu1004-etched.step` / `kbu1004-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `kbu1004.step` / `kbu1004.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](docs/kbu1004-datasheet.pdf) (3 pp, sha256 `4eea23a75747292a`, retrieved 2026-10-23, 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/kbu1004-datasheet.pdf)