component
49D025000CQ
Public Made by Adomby adom
huaxindianzi 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
markdown49D025000CQ
huaxindianzi · Crystals · HC-49S-SMD
49D025000CQ from huaxindianzi, 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 | huaxindianzi |
| 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 | -20 | 20 | ppm | At 25℃±℃ | 4 | ||
| Temperature frequency deviation (item 5, labelled 'Equivalent Series Resistance' in English text) | -30 | 30 | ppm | 4 | |||
| Resonant resistance | RR | 60 | Ω | 4 | |||
| Direct capacitance | C0 | 3 | pF | 4 | |||
| Insulation resistance | IR | 500 | MΩ | At DC 100V | 4 | ||
| Parasitic attenuation | SPDB | -3 | dB | -1000ppm～6500ppm | 4 | ||
| Aging rate | -2 | 2 | ppm | First year | 4 | ||
| Operating temperature | TC | -40 | 85 | ℃ | 4 | ||
| Storage temperature range | -55 | 125 | ℃ | 4 | |||
| Drive level | DL | 400 | μW | 4 | |||
| Load capacitance | CL | 20 | pF | 4 | |||
| Nominal frequency | F0 | 25 | MHz | 4 |
CAD (KiCad official)
- Symbol:
49D025000CQ - Footprint:
Crystal:Crystal_SMD_HC49-SD - 3D model: HC-49S-SMD (KiCad packages3D, STEP)
- 3D model files:
49d025000cq-etched.step/49d025000cq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);49d025000cq.step/49d025000cq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: huaxindianzi datasheet (10 pp, sha256 ``, retrieved 2026-10-14, tier: lcsc)
- Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).