# ABM8-24.000MHZ-12-B1U-T

**Abracon LLC** · Crystals · SMD3225-4P

ABM8-24.000MHZ-12-B1U-T from Abracon LLC, in a SMD3225-4P. 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 | XTAL1 | passive | Crystal terminal 1 (unmarked in the top view, so a crystal connection); the datasheet notes the chamfer may be on pin 1, 3 or 4 with no electrical impact. |
| 2 | GND | power_in | Pin 2 is labeled GND in the top view of the outline drawing, a ground connection to the package. |
| 3 | XTAL2 | passive | Crystal terminal 2 (unmarked in the top view, so a crystal connection); the datasheet notes the chamfer may be on pin 1, 3 or 4 with no electrical impact. |
| 4 | GND | power_in | Pin 4 is labeled GND in the top view of the outline drawing, a ground connection to the package. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Abracon LLC |
| Package | SMD3225-4P |
| Category | Crystals, Oscillators, Resonators |
| 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 |
|---|---|---|---|---|---|---|---|
| Equivalent series resistance (R1), fundamental 20.000-29.999 MHz band | R1 |  |  | 50 | Ω | Fundamental mode, 24 MHz falls in the 20.000-29.999 MHz row of the ESR table | 1 |
| Frequency Tolerance @+25°C |  | -10 |  | 10 | ppm | @+25°C; tolerance code 1 (± 10 ppm) per MPN | 1 |
| Frequency Stability over the Operating Temperature (ref. to +25°C) |  | -10 |  | 10 | ppm | Ref. to +25°C over operating temperature; stability code U (± 10 ppm) per MPN, option B | 1 |
| Operating Temperature |  | -20 |  | 70 | ºC | Option B (-20°C ~ +70°C) per MPN code B | 1 |
| Storage Temperature |  | -55 |  | 125 | ºC |  | 1 |
| Drive Level |  | 10 |  | 100 | µW |  | 1 |
| Aging, first year |  | -2 |  | 2 | ppm | @25°C ± 3°C, first year | 1 |
| Insulation Resistance |  | 500 |  |  | MΩ | @ 100 Vdc ± 15V | 1 |
| Frequency Range |  | 8 |  | 125 | MHz | Fundamental 8-54 MHz; 3rd overtone 64-125 MHz; contact Abracon for F<10 MHz | 1 |
| Shunt capacitance (C0) | C0 |  |  | 3 | pF |  | 1 |
| Load capacitance (CL), from MPN code 12 | CL |  | 12 |  | pF | Load capacitance field of this MPN is 12 (pF); table standard is 18.0 pF | 1 |

## CAD (KiCad official)

- Symbol: `ABM8-24.000MHZ-12-B1U-T`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `abm8-24-000mhz-12-b1u-t-etched.step` / `abm8-24-000mhz-12-b1u-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `abm8-24-000mhz-12-b1u-t.step` / `abm8-24-000mhz-12-b1u-t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Abracon LLC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589787715391950848) (2 pp, sha256 `564ac331d8bf38b4`, retrieved 2026-10-16, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (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/abm8-24-000mhz-12-b1u-t-datasheet.pdf)