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CDBH3-00340-HF
Public Made by Adomby adom
Comchip Schottky Diodes, SOT-523. 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
markdownCDBH3-00340-HF
Comchip · Schottky Diodes · SOT-523
CDBH3-00340-HF from Comchip, in a SOT-523. 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, with its cathode tied to pin 3; 40V reverse voltage, 30mA average forward current. |
| 2 | A2 | passive | Anode of the second Schottky diode, with its cathode tied to pin 3; 40V reverse voltage, 30mA average forward current. |
| 3 | K | passive | Common cathode of both Schottky diodes; 40V reverse voltage, 30mA average forward current per the circuit diagram. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Comchip |
| Package | SOT-523 |
| 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 leakage current | IR | 1 | μA | VR=10V | 1 | ||
| Capacitance between terminals | CT | 2 | pF | VR=1V, f=1MHz | 1 | ||
| Forward voltage | VF | 0.37 | V | IF=1mA | 1 | ||
| DC reverse voltage | VR | 40 | V | 1 | |||
| Peak reverse voltage | VRM | 40 | V | 1 | |||
| Power dissipation | PD | 150 | mW | 1 | |||
| Storage temperature range | TSTG | -55 | 150 | °C | 1 | ||
| Junction temperature | TJ | 125 | °C | 1 | |||
| Non-repetitive peak forward surge current | IFSM | 200 | mA | t=8.3ms | 1 | ||
| Average forward current | IO | 30 | mA | 1 | |||
| Thermal resistance from junction to ambient | RθJA | 667 | °C/W | 1 |
CAD (KiCad official)
- Symbol:
CDBH3-00340-HF - Footprint:
Package_TO_SOT_SMD:SOT-523 - 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
cdbh3-00340-hf-etched.step/cdbh3-00340-hf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cdbh3-00340-hf.step/cdbh3-00340-hf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Comchip datasheet (4 pp, sha256
d08a77d6d8b29fb7, retrieved 2026-10-18, 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).