# TAXM40M4SDBDDT2T

**TAE(Zhejiang Abel Elec)** · Crystals · SMD2520-4P

TAXM40M4SDBDDT2T from TAE(Zhejiang Abel Elec), in a SMD2520-4P. 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 | Crystal | passive | Crystal terminal for the 40.000000 MHz fundamental-mode resonator (CL 10 pF, drive level 100 uW max), connected as pins 1,3 in the pin connect table. |
| 2 | GND | passive | Ground pad, listed with pin 4 as GND in the pin connect table. |
| 3 | Crystal | passive | Crystal terminal for the 40.000000 MHz fundamental-mode resonator (CL 10 pF, drive level 100 uW max), connected as pins 1,3 in the pin connect table. |
| 4 | GND | passive | Ground pad, listed with pin 2 as GND in the pin connect table. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TAE(Zhejiang Abel Elec) |
| Package | SMD2520-4P |
| Category | Crystal Oscillator/Oscillator/Resonator |
| Pins | 4 |

## 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 at 25℃ |  | -10 |  | 10 | ppm | at 25℃ | 1 |
| Stability over operation temperance |  | -20 |  | 20 | ppm |  | 1 |
| Aging |  | -3 |  | 3 | ppm/year |  | 1 |
| Shunt Capacitance (Co) | Co | 0 |  | 5 | pF |  | 1 |
| Operating Temperature Range |  | -30 |  | 85 | ℃ |  | 1 |
| Storage Temperature Range |  | -40 |  | 85 | ℃ |  | 1 |
| Equivalent Resistance |  |  | 40 |  | Ω |  | 1 |
| Insulation Resistance |  |  | 500 |  | MΩ | at DC 200~250V | 1 |
| Drive Level |  |  | 100 |  | uw |  | 1 |
| Load Capacitance (CL) | CL |  | 10 |  | pF |  | 1 |
| Frequency (nominal) |  |  | 40 |  | MHZ |  | 1 |

## CAD (KiCad official)

- Symbol: `TAXM40M4SDBDDT2T`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `taxm40m4sdbddt2t-etched.step` / `taxm40m4sdbddt2t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `taxm40m4sdbddt2t.step` / `taxm40m4sdbddt2t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TAE(Zhejiang Abel Elec) datasheet](docs/taxm40m4sdbddt2t-datasheet.pdf) (1 pp, sha256 `decfdf53de1f4e3d`, retrieved 2026-10-22, 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:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/taxm40m4sdbddt2t-datasheet.pdf)