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.
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1TC125AFNS027
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).
# 1TC125AFNS027
**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.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1tc125afns027.step` / `1tc125afns027.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [KDS Daishinku datasheet](docs/1tc125afns027-datasheet.pdf) (8 pp, sha256 ``, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `crystal numbering` (convention), consensus `off` (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).
[Datasheet PDF](docs/1tc125afns027-datasheet.pdf)