# ABM8-27.120MHZ-10-B1U-T

**Abracon LLC** · Pre-ordered Products · SMD3225-4P

ABM8-27.120MHZ-10-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 (unlabeled in the top-view outline drawing, so not GND); the chamfer may be located on this pin with no effect on electrical performance. |
| 2 | GND | power_in | Ground pin, labeled GND in the top view of the outline drawing (lid/ground connection). |
| 3 | XTAL2 | passive | Crystal terminal 2 (unlabeled in the top-view outline drawing, so not GND); the chamfer may be located on this pin with no effect on electrical performance. |
| 4 | GND | power_in | Ground pin, labeled GND in the top view of the outline drawing; the chamfer may be located on this pin with no effect on electrical performance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Abracon LLC |
| Package | SMD3225-4P |
| Category | Electronic Tools/Instruments/Consumables |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating Temperature (option B) |  | -20 |  | 70 | °C | Operating temperature option B, decoded from MPN ABM8-27.120MHZ-10-B1U-T | 1 |
| Frequency Tolerance @+25°C (option 1) |  | -10 |  | 10 | ppm | @+25°C, frequency tolerance code 1 (±10 ppm), decoded from MPN | 1 |
| Frequency Stability over Operating Temperature (option U) |  | -10 |  | 10 | ppm | Ref. to +25°C, frequency stability code U (±10 ppm), decoded from MPN; valid for -10°C to +60°C and option B per datasheet note | 1 |
| Equivalent series resistance (R1) | R1 |  |  | 50 | Ω | Fundamental mode, 20.000 - 29.999 MHz (Table 1 ESR table) | 1 |
| Drive Level |  | 10 |  | 100 | µW |  | 1 |
| Aging |  | -2 |  | 2 | ppm | @25°C±3°C, first year | 1 |
| Insulation Resistance |  | 500 |  |  | MΩ | @ 100 Vdc ± 15 V | 1 |
| Storage Temperature |  | -55 |  | 125 | °C |  | 1 |
| Frequency Range (fundamental 8-54 MHz applies to this part) |  | 8 |  | 125 | MHz | Family range as printed; this part (27.120 MHz) is in the fundamental band 8-54 MHz | 1 |
| Shunt capacitance (C0) | C0 |  | 3 |  | pF |  | 1 |
| Load capacitance (CL) | CL |  | 10 |  | pF | Decoded from MPN segment '10' (load capacitance field) | 1 |

## CAD (KiCad official)

- Symbol: `ABM8-27.120MHZ-10-B1U-T`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `abm8-27-120mhz-10-b1u-t-etched.step` / `abm8-27-120mhz-10-b1u-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `abm8-27-120mhz-10-b1u-t.step` / `abm8-27-120mhz-10-b1u-t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Abracon LLC datasheet](docs/abm8-27-120mhz-10-b1u-t-datasheet.pdf) (2 pp, sha256 `564ac331d8bf38b4`, retrieved 2026-10-28, 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/abm8-27-120mhz-10-b1u-t-datasheet.pdf)