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KBL401

Changjing · Bridge Rectifiers · KBL

KBL401 from Changjing, in a KBL. 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 longer lead on the drawing); the 4A average output current at Tc=40°C and VRRM up to 1000V (device-dependent) apply to the bridge.
2 2 passive AC input terminal of the bridge rectifier; each diode is rated 1.1V max VFM at IFM=4.0A.
3 3 passive Second AC input terminal of the bridge rectifier; the surge current rating is 125A (60Hz sine, 1 cycle, Tj=25°C).
4 - passive Negative DC output of the bridge rectifier, the return terminal for the rectified output.

Key specifications

Parameter Value
Manufacturer Changjing
Package KBL
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
Peak Forward Voltage (per diode) VFM 1.1 V IFM=4.0A, Pulse measurement, Rating of per diode 1
Peak Reverse Current (per diode) IRRM 10 μA VRM=VRRM, Pulse measurement, Rating of per diode 1
Repetitive Peak Reverse Voltage VRRM 100 V KBL401 (01 column) 1
Average Rectified Output Current IO 4 A 60Hz sine wave, R-load Tc=40℃ 1
Surge (Non-repetitive) Forward Current IFSM 125 A 60HZ sine wave, 1 cycle, Tj=25℃ 1
Current Squared Time 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

CAD (KiCad official)

  • Symbol: KBL401
  • Footprint: Diode_THT:Diode_Bridge_Vishay_KBL
  • 3D model: KBL (KiCad packages3D, STEP)
  • 3D model files: kbl401-etched.step / kbl401-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kbl401.step / kbl401.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (3 pp, sha256 3db5e0e61bfeb54c, retrieved 2026-10-24, 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