Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

TZ1181EAAA32

TST · Crystals · SMD2520-4P

TZ1181EAAA32 from TST, 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 IN/OUT passive Crystal terminal (IN/OUT) for the 40.000000 MHz fundamental-mode crystal, with 7 pF load capacitance.
2 GND power_in Ground pad, connected to GND per the pin connection table.
3 IN/OUT passive Second crystal terminal (IN/OUT) for the 40.000000 MHz crystal, with 7 pF load capacitance.
4 GND power_in Ground pad, connected to GND per the pin connection table.

Key specifications

Parameter Value
Manufacturer TST
Package SMD2520-4P
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
Frequency Make Tolerance (FL) FL -7 7 ppm @ 25C +/- 3C 3
Frequency Stability over Operating Temperature Range -10 10 ppm referred to the value at 25C; -30C to +85C 3
Aging -2 2 ppm/year 3
Equivalent Series Resistance (ESR) ESR 20 Ω 3
Shunt Capacitance (Co) Co 2 pF 3
Nominal Drive Level 10 350 uW typical and max as printed 3
Insulation Resistance 500 M DC 100V 3
Trim Sensitivity tolerance TS -10 10 % printed as +/-10% of the 19.2 ppm/pF typical 3
Operating Temperature Range -40 105 C 3
Storage Temperature Range -40 105 C storage 3
Nominal Frequency 40 MHz 3
Load Capacitance (CL) CL 7 pF 3
Trim Sensitivity (TS) TS 19.2 ppm/pF typical 3

CAD (KiCad official)

  • Symbol: TZ1181EAAA32
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: tz1181eaaa32-etched.step / tz1181eaaa32-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tz1181eaaa32.step / tz1181eaaa32.glb are the bare package body.

Provenance

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

  • Datasheet: TST datasheet (7 pp, sha256 6e4de3f5bed567fe, retrieved 2026-10-21, tier: lcsc)
  • 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