component
MBRB3045CT
Public Made by Adomby adom
baocheng Shandong Baocheng Elec Schottky Diodes, TO-263. 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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Contents
README
markdownMBRB3045CT
baocheng Shandong Baocheng Elec · Schottky Diodes · TO-263
MBRB3045CT from baocheng Shandong Baocheng Elec, in a TO-263. 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 | A1 | passive | Anode of the first Schottky diode (PIN1); each diode is rated 15.0A forward test current with 30A total average rectified output current and VRRM of 45V for MBRB3045CT. |
| 2 | K | passive | Common cathode of both Schottky diodes (PIN2), shared by the center lead and the case/tab per the schematic; thermal resistance junction to case is 2.0 °C/W. |
| 3 | A2 | passive | Anode of the second Schottky diode (PIN3); each diode is rated 15.0A forward test current with 30A total average rectified output current and VRRM of 45V for MBRB3045CT. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | baocheng Shandong Baocheng Elec |
| Package | TO-263 |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 45 | V | 1 | |||
| Average Rectified Output Current | IO | 30 | A | @60Hz sine wave, R-load, Ta=25℃ | 1 | ||
| Surge (Non-repetitive) Forward Current | IFSM | 180 | A | @60Hz half sine-wave, 1 cycle, Ta=25℃ | 1 | ||
| Current Squared Time | I2t | 134 | A2s | @1ms≤t<8.3ms Tj=25℃ | 1 | ||
| Storage Temperature | Tstg | -55 | 175 | ℃ | 1 | ||
| Junction Temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Maximum instantaneous forward voltage drop per diode | VFM | 0.65 | V | IFM=15.0A | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage per diode, Ta=25℃ | IRRM1 | 0.3 | mA | VRM=VRRM Ta=25℃ | 1 | ||
| Maximum DC reverse current at rated DC blocking voltage per diode, Ta=125℃ | IRRM2 | 20 | mA | VRM=VRRM Ta=125℃ | 1 | ||
| Thermal Resistance Between junction and case | RθJ-C | 2 | ℃/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD002 and JESD22-B102 ● Polarity: As marked | 1 |
CAD (KiCad official)
- Symbol:
MBRB3045CT - Footprint:
Package_TO_SOT_SMD:TO-263-2 - 3D model: TO-263 (KiCad packages3D, STEP)
- 3D model files:
mbrb3045ct-etched.step/mbrb3045ct-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mbrb3045ct.step/mbrb3045ct.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: baocheng Shandong Baocheng Elec datasheet (2 pp, sha256
0a7bc10f8af2c18a, retrieved 2026-10-19, 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).