component
1TC125AFNS027
Public Made by Adomby adom
KDS Daishinku Crystals, DT-38. 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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Contents
README
markdown1TC125AFNS027
KDS Daishinku · Crystals · DT-38
1TC125AFNS027 from KDS Daishinku, in a DT-38. 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 | KDS Daishinku |
| Package | DT-38 |
| 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 | -5 | 5 | ×10-6 | measured at +25±2°C | 2 | ||
| Equivalent resistance | ESR | 30 | kΩ | series, measured at +25±2°C | 2 | ||
| Parabolic curvature constant | -4 | ×10-8 /°C² | measured at +25±2°C | 2 | |||
| Insulation resistance | 500 | MΩ | D.C. 100V, lead to lead and lead to case | 2 | |||
| Aging | -5 | 5 | ×10-6 /year | 2 | |||
| Turnover temperature | 20 | 25 | 30 | °C | 25 ± 5°C | 2 | |
| Operating temperature range | -10 | 60 | °C | 2 | |||
| Storage temperature range | -20 | 70 | °C | 2 | |||
| Recommended drive level | 1 | µW | drive level less than 1.0µW recommended; characteristics not guaranteed above 2.0µW | 7 | |||
| Nominal frequency | f0 | 32.768 | kHz | 2 | |||
| Loading capacitance | CL | 12.5 | pF | 2 |
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 | (5) Lead terminal Kovar Sn plating This is a sketch of inside construction. | 6 | |
| shell | tin | (4) Shell 42 alloy Sn plating (5) Lead terminal Kovar Sn plating | 6 |
CAD (KiCad official)
- Symbol:
1TC125AFNS027 - Footprint:
Crystal:Crystal_C38-LF_D3.0mm_L8.0mm_Vertical - 3D model: DT-38 (KiCad packages3D, STEP)
- 3D model files:
1tc125afns027-etched.step/1tc125afns027-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1tc125afns027.step/1tc125afns027.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KDS Daishinku datasheet (8 pp, sha256 ``, retrieved 2026-10-23, 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).