component
FC4SDCBMM25.0-T1
Public Made by Adomby adom
Fox Crystals, HC-49S-SMD. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdownFC4SDCBMM25.0-T1
Fox · Crystals · HC-49S-SMD
FC4SDCBMM25.0-T1 from Fox, in a HC-49S-SMD. 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 | 1 | passive | Terminal 1 of a two-terminal crystal; either orientation. |
| 2 | 2 | passive | Terminal 2 of a two-terminal crystal; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Fox |
| Package | HC-49S-SMD |
| Category | Crystals, Oscillators, Resonators |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency tolerance @ 25°C (option C) | -30 | 30 | ppm | @ 25°C | 1 | ||
| Frequency stability, ref 25°C, over operating temp range (option B) | -50 | 50 | ppm | Ref 25°C; over operating temp range -40°C to +85°C (option M) | 1 | ||
| Aging per year | -3 | 3 | ppm | @ 25°C | 1 | ||
| Shunt capacitance | CO | 7 | pF | 1 | |||
| Max ESR (fundamental) | 30 | Ω | Fundamental mode, >20.000 ~ 40.000 MHz | 1 | |||
| Drive level | 0.5 | mW | 1 | ||||
| Operating temperature range (TOPR) | TOPR | -40 | 85 | °C | Option M = -40 to +85°C | 2 | |
| Storage temperature range (TSTG) | TSTG | -55 | 125 | °C | 1 | ||
| Maximum soldering temperature | 260 | °C | 10 seconds x 2 | 1 | |||
| Frequency range | 3.2 | 80 | MHz | 1 | |||
| Nominal frequency | 25 | MHz | Frequency code 25.0 in MPN | 2 | |||
| Load capacitance | CL | 20 | pF | Load code M = 20pF | 2 | ||
| Drive level (typical) | 100 | µW | Typical | 1 |
CAD (KiCad official)
- Symbol:
FC4SDCBMM25.0-T1 - Footprint:
Crystal:Crystal_SMD_HC49-SD - 3D model: HC-49S-SMD (KiCad packages3D, STEP)
- 3D model files:
fc4sdcbmm25-0-t1-etched.step/fc4sdcbmm25-0-t1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fc4sdcbmm25-0-t1.step/fc4sdcbmm25-0-t1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Fox datasheet (2 pp, sha256 ``, retrieved 2026-10-15, tier: lcsc)
- Extractor: parts-factory
2.0.0/extract_pins, primarycrystal numbering(convention), consensusoff(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).