
Overview
The ATS12A is a crystal made by CTS Electronic Components in a HC-49S package with 2 pins.
PCBKit's library has its KiCad symbol (Device:Crystal, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C6508613). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
The library has no footprint for this part yet.
Parameters
6- Equivalent Series Resistance(ESR)
- 40Ω
- Frequency
- 12MHz
- Frequency Stability
- ±50ppm
- Load Capacitance
- 20pF
- Normal temperature Frequency Tolerance
- ±30ppm
- Operating Temperature
- -20℃~+70℃
Order codes
1- ATS12ALCSC C6508613
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | 1 | Passive |
| 2 | 2 | Passive |
Open-source boards using it
All 1- 2 layers80 × 80 mm

Questions
Is there a KiCad symbol and footprint for the ATS12A?
Yes. The symbol is Device:Crystal, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ATS12A?
HC-49S, with 2 pins.
Where is the ATS12A datasheet?
CTS Electronic Components publishes it: the Datasheet link on this page opens it.
Where can I order the ATS12A?
JLCPCB lists it as part C6508613, with 0 in stock; the sellers' links on this page open their listings.
What can replace the ATS12A?
Parts like it in the library: the X49SD12MSD2SC by YXC, the H1OEL89CSC-SUGYLC-12M by YXC, the X49SD12MSB2SI by YXC and the TAXD12M2GLFBET2T by Yajingxin. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ATS12A?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8X49SD12MSD2SC
HC-49S-20℃~+70℃ 12MHz 20pF 50Ω Through Hole Crystal Oscillator ±20ppm ±30ppm HC-49S Crystals ROHSYXCCrystalsH1OEL89CSC-SUGYLC-12M
HC-49S-20℃~+70℃ 12MHz 20pF 50Ω Through Hole Crystal Oscillator ±20ppm ±30ppm HC-49S Crystals ROHSYXCCrystalsX49SD12MSB2SI
HC-49S-40℃~+85℃ 12MHz 20pF 50Ω Through Hole Crystal Oscillator ±10ppm ±30ppm HC-49S Crystals ROHSYXCCrystalsTAXD12M2GLFBET2T
HC-49S-20℃~+70℃ 12MHz 20pF 50Ω Through Hole Crystal Oscillator ±30ppm ±30ppm HC-49S Crystals ROHSYajingxinCrystalsHC-49/U-S12000000ABJB
HC-49S-10℃~+60℃ 12MHz 18pF 80Ω ±30ppm ±50ppm HC-49S Crystals ROHSCITIZENCrystalsXIHCELNANF-12MHZ
HC-49S-40℃~+85℃ 12MHz 20pF Through Hole Crystal Oscillator ±30ppm ±30ppm HC-49S Crystals ROHSTAITIENCrystalsH1OEL89CSI-STUYLC-12M
HC-49S-40℃~+85℃ 12MHz 20pF 50Ω Through Hole Crystal Oscillator ±10ppm ±30ppm HC-49S Crystals ROHSYXCCrystalsH1OEL89CSI-SUGYLC-12M
HC-49S-40℃~+85℃ 12MHz 20pF 50Ω Through Hole Crystal Oscillator ±20ppm ±30ppm HC-49S Crystals ROHSYXCCrystals