# ABLS2-20.000MHZ-D4Y-T

**Abracon LLC** · Crystals · HC-49S-SMD

ABLS2-20.000MHZ-D4Y-T from Abracon LLC, in a HC-49S-SMD. 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 | Abracon LLC |
| Package | HC-49S-SMD |
| 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 @+25°C |  | -30 |  | 30 | ppm | @+25°C; MPN tolerance code 4 (±30 ppm) | 2 |
| Frequency Stability over the Operating Temperature (ref. to +25°C) |  | -30 |  | 30 | ppm | ref. to +25°C; MPN stability code Y (±30 ppm) | 2 |
| Operating Temperature |  | -40 |  | 85 | °C | Option D: -40°C ~ +85°C (MPN code D) | 2 |
| Storage Temperature |  | -55 |  | 125 | °C |  | 1 |
| Equivalent series resistance (R1) | R1 |  |  | 40 | Ω | Fundamental, 16.000 - 50.000 MHz (Table 1) | 1 |
| Shunt capacitance | C0 |  |  | 7 | pF |  | 1 |
| Insulation Resistance |  | 500 |  |  | MΩ | @ 100Vdc ± 15V | 1 |
| Aging |  | -5 |  | 5 | ppm | @25°C±3°C, first year | 1 |
| Change in frequency (Maximum - Minimum) over DLD range |  | -10 |  | 10 | ppm | Over DLD range, 7 points from 1µW to 500µW | 1 |
| Change in ESR (Maximum - Minimum) over DLD range |  |  |  | 25 | % | Of Max ESR value, over DLD range | 1 |
| Frequency Range (Fundamental AT, Standard) |  | 3.57954 |  | 24 | MHz | Fundamental AT (Standard) | 1 |
| Load capacitance (CL) | CL |  | 18 |  | pF | Standard (See options if other than STD) | 1 |
| Drive Level |  |  | 100 | 1000 | µW |  | 1 |

## CAD (KiCad official)

- Symbol: `ABLS2-20.000MHZ-D4Y-T`
- Footprint: `Crystal:Crystal_SMD_HC49-SD`
- 3D model: HC-49S-SMD (KiCad packages3D, STEP)
- 3D model files: `abls2-20-000mhz-d4y-t-etched.step` / `abls2-20-000mhz-d4y-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `abls2-20-000mhz-d4y-t.step` / `abls2-20-000mhz-d4y-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/8590906448908140544) (3 pp, sha256 ``, retrieved 2026-10-14, 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/abls2-20-000mhz-d4y-t-datasheet.pdf)