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SBDB4045TCTB
Public Made by Adomby adom
Changjing Schottky Diodes, TO-263-2L. Pinout cross-checked by two models 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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README
markdownSBDB4045TCTB
Changjing · Schottky Diodes · TO-263-2L
SBDB4045TCTB from Changjing, in a TO-263-2L. 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 | ANODE | passive | Anode terminal of the Schottky barrier rectifier, one of two anode pins (1 and 3) on the TO-263-2L package; the device is rated 45 V VRRM and 40 A average output current (2×20 A). |
| 2 | CATHODE | passive | Cathode terminal of the Schottky barrier rectifier, rated 45 V VRRM and 40 A average rectified output current (2×20 A) per the maximum ratings. |
| 3 | ANODE | passive | Anode terminal of the Schottky barrier rectifier, the second anode pin (with pin 1) on the TO-263-2L package; the device is rated 45 V VRRM and 40 A average output current (2×20 A). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-263-2L |
| Category | Diodes |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse voltage | V(BR) | 45 | V | IR=1mA | 1 | ||
| Peak repetitive reverse voltage | VRRM | 45 | V | 1 | |||
| RMS reverse voltage | VR(RMS) | 31.5 | V | 1 | |||
| Average rectified output current | IO | 40 | A | 1 | |||
| Non-Repetitive peak forward surge current | IFSM | 250 | A | 8.3ms half sine wave | 1 | ||
| Storage temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal resistance from junction to ambient | RΘJA | 62.5 | ℃/W | 1 | |||
| Thermal resistance from junction to case | RΘJC | 2 | ℃/W | Tc=25℃ | 1 |
CAD (KiCad official)
- Symbol:
SBDB4045TCTB - Footprint:
Package_TO_SOT_SMD:TO-263-2 - 3D model: TO-263-2L (KiCad packages3D, STEP)
- 3D model files:
sbdb4045tctb-etched.step/sbdb4045tctb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sbdb4045tctb.step/sbdb4045tctb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (3 pp, sha256
6ee6bc14fc450820, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).