component
FV1043PF
Public Made by Adomby adom
ST(Semtech) Diodes - Variable Capacitance, DO-35. 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
markdownFV1043PF
ST(Semtech) · Diodes - Variable Capacitance · DO-35
FV1043PF from ST(Semtech), in a DO-35. 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 | K | passive | Cathode, marked by the cathode band on the DO-35 glass case; breakdown voltage VBR is 5 V min at IR = 1 µA. |
| 2 | A | passive | Anode, the lead opposite the cathode band; nominal capacitance is 5 to 20 pF at VR = 4 V, f = 1 MHz. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST(Semtech) |
| Package | DO-35 |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 5 | V | IR = 1 µA | 1 | ||
| Nominal Capacitance | C | 5 | 20 | pF | VR = 4 V, f = 1 MHz | 1 | |
| Figure Of Merit | Q | 100 | f = 100 MHz | 1 | |||
| Thermal Resistance from Junction to Ambient | RθJA | 429 | /W | 1 | |||
| Breakdown Voltage | VBR | 5 | V | Ta = 25 °C | 1 | ||
| Average Forward Current | IF(AV) | 250 | mA | Ta = 25 °C | 1 | ||
| Power Dissipation | Ptot | 350 | mW | Ta = 25 °C | 1 | ||
| Operating Temperature Range | Topr | -65 | 175 | °C | Ta = 25 °C | 1 | |
| Storage Temperature Range | Tstg | -65 | 200 | °C | Ta = 25 °C | 1 | |
| Capacitance Ratio | C0.1/C4 | 1.8 | VR = 0.1 V and VR = 4 V, f = 1 MHz | 1 |
CAD (KiCad official)
- Symbol:
FV1043PF - Footprint:
Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal - 3D model: DO-35 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST(Semtech) datasheet (2 pp, sha256
3aa8b35a2a5b9d62, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).