

Overview
The ATS240C is a crystal made by CTS Electronic Components in a HC-49S package with 2 pins. -20℃~+70℃ 12pF 24MHz 30Ω ±30ppm ±50ppm HC-49S Crystals ROHS.
PCBKit's library has its KiCad symbol (Device:Crystal, from KiCad's library) and its footprint (EasyEDA_Cloud:HC-49US_L11.5-W4.5-P4.88, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1669763). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
7- Equivalent Series Resistance(ESR)
- 30Ω
- Frequency
- 24MHz
- Frequency Stability
- ±50ppm
- Frequency Stability(Full temperature range)
- ±50ppm
- Load Capacitance
- 12pF
- Normal temperature Frequency Tolerance
- ±30ppm
- Operating Temperature
- -20℃~+70℃
Order codes
1- ATS240CLCSC C1669763
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | 1 | Passive |
| 2 | 2 | Passive |
Open-source boards using it
All 1- 4 layers99.1 × 99.1 mm

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<iframe src="https://pcbkit.io/embed/parts/cts/ATS240C" title="ATS240C in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/cts/ATS240C.jpg" alt="ATS240C" width="1200" height="900">[](https://pcbkit.io/parts/cts/ATS240C)Questions
Is there a KiCad symbol and footprint for the ATS240C?
Yes. The symbol is Device:Crystal and the footprint EasyEDA_Cloud:HC-49US_L11.5-W4.5-P4.88, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ATS240C?
HC-49S, with 2 pins. Its footprint is drawn on this page.
Where is the ATS240C datasheet?
CTS Electronic Components publishes it: the Datasheet link on this page opens it.
Where can I order the ATS240C?
JLCPCB lists it as part C1669763, with 0 in stock; the sellers' links on this page open their listings.
What can replace the ATS240C?
Parts like it in the library: the X49SD24MSD2SC by YXC, the H1OSC-SUG-24M by YXC, the 6BS24000F20UCG by SJK and the 49S-24.00-20-10-10/A by Suzhou Liming Elec. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ATS240C?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8X49SD24MSD2SC
HC-49S-20℃~+70℃ 20pF 24MHz 35Ω Through Hole Crystal Oscillator ±20ppm ±30ppm HC-49S Crystals ROHSYXCCrystalsH1OSC-SUG-24M
HC-49S-20℃~+70℃ 20pF 24MHz 35Ω Through Hole Crystal Oscillator ±20ppm ±30ppm HC-49S Crystals ROHSYXCCrystals6BS24000F20UCG
HC-49S-40℃~+85℃ 20pF 24MHz Through Hole Crystal Oscillator ±20ppm ±30ppm HC-49S Crystals ROHSSJKCrystals49S-24.00-20-10-10/A
HC-49S-20℃~+70℃ 20pF 24MHz Through Hole Crystal Oscillator ±10ppm ±10ppm HC-49S Crystals ROHSSuzhou Liming ElecCrystalsKUS240001230
HC-49S-20℃~+70℃ 12pF 24MHz 30Ω Through Hole Crystal Oscillator ±20ppm ±30ppm HC-49S Crystals ROHSKYXCrystalsXIHCELNANF-24M
HC-49S-40℃~+85℃ 20pF 24MHz Through Hole Crystal Oscillator ±30ppm ±30ppm HC-49S Crystals ROHSTAITIEN ElecCrystalsKUS240000920
HC-49S-20℃~+70℃ 24MHz 30Ω 9pF Through Hole Crystal Oscillator ±20ppm ±20ppm HC-49S Crystals ROHSKYXCrystalsKUS240002020
HC-49S-20℃~+70℃ 20pF 24MHz 30Ω Through Hole Crystal Oscillator ±20ppm ±20ppm HC-49S Crystals ROHSKYXCrystals