# CFV-20660003DZFB

**CITIZEN** · Crystals · DT-26

CFV-20660003DZFB from CITIZEN, in a DT-26. 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 | CITIZEN |
| Package | DT-26 |
| 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 | Δf/f | -20 |  | 20 | ppm | at 25℃, code D | 2 |
| Nominal frequency | f0 |  | 32.768 |  | kHz |  | 1 |
| Load capacitance | CL |  | 12.5 |  | pF | code F | 2 |
| Motional (series) resistance | R1 |  |  | 35 | kΩ | at 25℃ | 1 |
| Level of drive | DL |  |  | 1 | μW |  | 1 |
| Aging (first year) | Δf/f | -3 |  | 3 | ppm | first year | 1 |
| Temperature coefficient | β |  | -0.034 |  | ppm/℃² | printed as -0.034±0.006ppm/℃² | 1 |
| Shunt capacitance | C0 |  | 1 |  | pF |  | 1 |

## CAD (KiCad official)

- Symbol: `CFV-20660003DZFB`
- Footprint: `Crystal:Crystal_DS26_D2.0mm_L6.0mm_Vertical`
- 3D model: DT-26 (KiCad packages3D, STEP)
- 3D model files: `cfv-20660003dzfb-etched.step` / `cfv-20660003dzfb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cfv-20660003dzfb.step` / `cfv-20660003dzfb.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [CITIZEN datasheet](docs/cfv-20660003dzfb-datasheet.pdf) (2 pp, sha256 ``, retrieved 2026-10-22, 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/cfv-20660003dzfb-datasheet.pdf)