# 7V-28.63636MAHJ-T

**TXC Corp** · Pre-ordered Products · SMD3225-4P

7V-28.63636MAHJ-T from TXC Corp, 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, connected to the crystal element in the suggested connection diagram, with a nominal load capacitance of 6 to 20 pF. |
| 2 | NC | unconnected | No connection, marked NC in the suggested connection diagram. |
| 3 | XTAL2 | passive | Crystal terminal 2, connected to the crystal element in the suggested connection diagram, with a nominal load capacitance of 6 to 20 pF. |
| 4 | NC | unconnected | No connection, marked NC in the suggested connection diagram. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TXC Corp |
| Package | SMD3225-4P |
| Category | Solders / Accessories / Batteries |
| 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 | Ftol | -30 |  | 30 | ppm | at 25°C (code A) | 2 |
| Frequency Stability over Operating Temperature Range | Fstab | -30 |  | 30 | ppm | -40°C ~ +85°C (code H), refer to 25°C | 2 |
| Motional Resistance (ESR) |  |  |  | 60 | Ω | Fundamental, 16 ~ 54 MHz | 1 |
| Shunt Capacitance | C0 |  |  | 3 | pF |  | 1 |
| Aging | Faging | -3 |  | 3 | ppm | at 25°C ± 3°C, first year | 1 |
| Drive Level | DL | 1 | 10 | 50 | μW |  | 1 |
| Operating Temperature Range | TOTR | -40 |  | 85 | °C |  | 1 |
| Storage Temperature Range | TSTR | -55 |  | 125 | °C |  | 1 |
| Load Capacitance | CL |  | 18 |  | pF | code J | 2 |

## CAD (KiCad official)

- Symbol: `7V-28.63636MAHJ-T`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `7v-28-63636mahj-t-etched.step` / `7v-28-63636mahj-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `7v-28-63636mahj-t.step` / `7v-28-63636mahj-t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TXC Corp datasheet](docs/7v-28-63636mahj-t-datasheet.pdf) (3 pp, sha256 `9e17b9a75e9db0d2`, retrieved 2026-10-22, 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/7v-28-63636mahj-t-datasheet.pdf)