HC-49U: Standard Through-Hole Crystal

Features:

Package Type: Through-hole

Size: Largest among the three

Mounting: Inserted into PCB holes and soldered

Frequency Range: Typically 1.8432MHz – 40MHz

Applications: Industrial electronics, communication devices, and military applications

Advantages:

✔ Durable and robust for long-term performance  ✔ Easy to handle during assembly   ✔ Suitable for high-power applications

Best for:

Devices requiring high durability

Industrial and military-grade applications

HC-49S: Compact Through-Hole Crystal

Features:

Package Type: Through-hole (smaller size than HC-49U)

Size: Slimmer and shorter than HC-49U

Mounting: Inserted into PCB holes and soldered

Frequency Range: Typically 3.579545MHz – 40MHz

Applications: Compact PCB designs, consumer electronics, and communication devices

Advantages:

✔ More compact than HC-49U, saving PCB space   ✔ Maintains through-hole mounting advantages   ✔ Cost-effective frequency control solution

Best for:

Space-sensitive PCB designs

Devices requiring a balance between size and performance

HC-49SMD: Surface-Mount Crystal

Features:

Package Type: Surface-mount (SMD)

Size: Most compact design

Mounting: Directly soldered onto PCB surface (SMT process)

Frequency Range: Typically 3.579545MHz – 40MHz

Applications: High-density electronic designs, IoT, automotive, and portable devices

Advantages:

✔ Space-efficient, ideal for compact PCBs   ✔ Compatible with automated SMT production   ✔ Lower profile for modern electronic designs

Best for:

High-density electronic circuits

Automotive and portable applications

Choose the Right Crystal for Your Application

Each quartz crystal type offers distinct advantages. HC-49U is ideal for durability and traditional through-hole mounting, HC-49S provides space-saving benefits while maintaining through-hole assembly, and HC-49SMD is perfect for modern, compact designs requiring automated surface mounting.

Need help selecting the right crystal for your project? Contact us today to explore our full range of high-quality quartz crystal oscillators!