FCX-9S HC-49S Crystal 3.2–64 MHz for TV/STB
DIP HC-49S
FEATURE
Product Description
FCX-9S Quartz Crystal Resonator (HC-49S Resistance Welded Type)
FCX-9S is a widely used HC-49S resistance-welded quartz crystal resonator supporting standard frequencies from 3.2 MHz to 64 MHz. It provides a highly cost-effective solution with strong manufacturability for mass production in set-top boxes, televisions, LCD modules and cable modems. The resistance-welded metal case is durable and compliant with RoHS/REACH and Pb-free regulations.
Test condition (typical): ambient 25 ± 5°C, RH 40%–70% (unless otherwise specified).
Key Features
- Resistance welded type crystal units
- A great number of standard frequencies (3.2–64 MHz)
- Lower cost and highly mass production capability
- RoHS and REACH compliant, Pb-free
Application Scenarios
- TV mainboard timing circuits
- Set-top boxes (STB) and cable receivers
- LCD monitor modules (LCDM)
- Home gateway / DSL / CPE equipment
- Cable modem
Detailed Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Nominal Frequency | F | 3.2 | – | 64 | MHz | Standard frequencies |
| Frequency Tolerance | FT | – | ±10 | – | ppm | @25°C ±3°C |
| Frequency Stability Over Operating Temp. Range (Reference 25°C) | ST | – | ±50 | – | ppm | @-40~85°C |
| – | ±80 | – | ppm | @-40~105°C | ||
| Operating Temperature | Topr | -40 | 25 | 105 | °C | Industrial grade |
| Load Capacitance | CL | – | 6 / 10 / 18 or specify | – | pF | Custom CL available |
| Drive Level | DL | – | 100 | 500 | µW | Keep within limits for reliability |
| Equivalent Series Resistance (max) | ESR | – | – | 120 | Ω | 3.2–5.999 MHz |
| – | – | 90 | Ω | 6–7.999 MHz | ||
| – | – | 40 | Ω | 8–15.999 MHz | ||
| – | – | 30 | Ω | 16–40 MHz | ||
| – | – | 100 | Ω | >40 MHz | ||
| Aging | – | – | ±3 | – | ppm | 1st year |
Test condition: ambient temperature 25 ± 5°C, relative humidity 40%–70%. The table shows common specifications. If you have special specification requirements, please contact our salesperson.
Package & Dimensions (mm)
- Body length: 11.05 max
- Body height: 4.7 max
- Cap height: 3.8 max
- Shoulder height: 3.68 max
- Lead length: 13.2 ± 0.5
- Lead diameter: 0.45 ± 0.10
- Lead spacing (pitch): 4.88 ± 0.20
Applications & Design Notes
TV / STB mainboard clocks
In cost-sensitive consumer platforms, a stable reference crystal is required to keep demodulation, audio/video timing, and interface clocks within tolerance. ±10 ppm @25°C with industrial temperature coverage helps maintain margin across manufacturing and field conditions.
Home gateway / DSL / cable modem
Networking devices often need a reliable clock that balances mass production stability and BOM cost. Selecting the correct CL (6/10/18 pF) to match your oscillator circuit reduces startup risk and frequency offset.
Further reading (Knowledge & selection guides)
Ordering Code / Options
To avoid ambiguity in procurement and bring-up, please specify the following items when requesting samples or an RFQ:
- Nominal frequency (within 3.2–64 MHz)
- Load capacitance (CL): 6 pF / 10 pF / 18 pF (or specify)
- Frequency tolerance at 25°C (default: ±10 ppm)
- Stability grade over temperature (e.g., ±50 ppm / ±80 ppm as listed)
- Operating temperature range (e.g., -40 to +85°C or -40 to +105°C)
- Quantity & packaging requirement for production shipment
- Screening / test report needs (if applicable)
Selection Path / Upgrade Options
If you are migrating from through-hole to SMD, or need smaller size / better stability, consider these related resonators: FCX-3M, FCX-5M, FCX-7M. You can also browse the full family at Quartz Crystal Resonators.
Documents & Downloads
Datasheet
Download the official datasheet for FCX-9S (HC-49S resistance welded type) to confirm frequency options, ESR limits, CL and temperature grades.
Quality & Compliance
- ISO 9001: Certification
- ISO 14001: Certification
- RoHS / REACH compliant, Pb-free (per product specification)
Why Choose FCom FCX-9S?
- Lower cost with high-volume manufacturing for legacy platforms
- Durable resistance welded HC-49S design
- Many standard frequencies from stock (3.2–64 MHz)
- Lead-free and compliant (RoHS/REACH)
FAQ
What is HC-49S package?
HC-49S is a traditional through-hole quartz crystal package with a welded metal enclosure and two leads, commonly used in cost-sensitive and legacy electronics. FCX-9S adopts a resistance-welded HC-49S structure for stable mass production.
Can I request a specific frequency?
Yes. FCX-9S supports a wide range of standard frequencies (3.2–64 MHz) and can be customized. Please contact us with your target frequency, CL and temperature requirements.
Do you provide samples and what is the lead time?
Yes. We can support samples for evaluation. Lead time depends on frequency, CL, temperature grade and order quantity. Contact us with your target specification and quantity for an accurate schedule.
What is the MOQ and is pricing published online?
This is a no-price RFQ product. MOQ and pricing depend on specification, packaging and demand. Please email us or click “Request an RFQ” to receive a quotation.
Can FCX-9S be customized for tolerance, stability, or screening?
Yes. Tolerance, stability grade, operating temperature, packaging and screening options can be discussed for your platform. Share your target specs and reliability requirements (e.g., consumer vs industrial) and we will recommend the most suitable option.
Can you provide packaging details and test reports?
Packaging format and documentation availability depend on the order requirement and specification. If you need a test report, incoming inspection criteria, or compliance statements, include it in your RFQ so we can align documentation with your process.
Technical Support
For oscillator circuit matching (CL selection), startup margin checks, and frequency offset troubleshooting, contact our application engineering team. Provide your target frequency, CL, schematic (if possible), and operating temperature range.
- Family page: Quartz Crystal Resonators
- Knowledge: Quartz Frequency Guide
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