ABM3B-12.000MHZ-10-1-U-T ABRACON Crystal or Oscillator (Other) In Stock
ABRACON ABM3B-12.000MHZ-10-1-U-T is a 12.000 MHz fundamental mode SMD crystal resonator in a 4-pin ceramic package. Features 10 ppm frequency tolerance, 10 µW drive level, and tape-and-reel packaging for automated assembly in microcontroller and communication timing circuits.
- Manufacturer
- ABRACON
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Category
- Crystal or Oscillator
- Temp Range
- -10.0°C to 60.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12.000 MHz fundamental parallel resonant mode for precision timing
- 10 ppm frequency tolerance ensures tight clock accuracy across temperature
- Ultra-low 10 µW maximum drive level reduces power consumption
- Aging of only 5 ppm per first year for long-term frequency stability
- RoHS compliant 4-pin SMD ceramic package for compact PCB designs
- Tape-and-reel packaging for high-volume automated SMT assembly
Applications
The ABM3B-12.000MHZ-10-1-U-T is commonly used as a reference clock source for USB microcontrollers, UART interfaces, and Ethernet PHY devices that require an accurate 12 MHz timing reference. It is also found in wireless communication modules, Bluetooth chipsets, and consumer electronics where a low-power, 10 ppm tolerance SMD crystal is needed for stable baseband clock generation.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 12Weeks |
| YTEOL | 7.05 |
| Additional Feature | TAPE AND REEL |
| Aging | 5 PPM/FIRST YEAR |
| Crystal/Resonator Type | PARALLEL - FUNDAMENTAL |
| Drive Level | 10 µW |
| Frequency Stability | 0.001% |
| Frequency Tolerance | 10ppm |
| JESD-609 Code | e4 |
| Load Capacitance | 10pF |
| Mounting Feature | SURFACE MOUNT |
| Operating Frequency-Nom | 12MHz |
| Physical Dimension | L5.0XB3.2XH1.1 (mm)/L0.197XB0.126XH0.043 (inch) |
| Series Resistance | 70Ω |
| Surface Mount | YES |
| Terminal Finish | Nickel/Gold (Ni/Au) |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8541.60.00.50 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What frequency tolerance does the ABM3B-12.000MHZ-10-1-U-T guarantee, and how does it compare across temperature ranges?
The ABM3B-12.000MHZ-10-1-U-T specifies a frequency tolerance of 10 ppm, meaning the 12.000 MHz output deviates by no more than 120 Hz from nominal at calibration temperature. The frequency stability over the operating temperature range is 0.001%, making it suitable for USB and UART timing applications that require accurate baud rate generation.
For a USB full-speed device design, why is 12.000 MHz the preferred crystal frequency for the ABM3B series?
USB full-speed operation at 12 Mbps requires a 12 MHz reference clock for the internal USB PHY or can use 12 MHz directly as the system clock in many USB microcontrollers. The ABM3B-12.000MHZ-10-1-U-T provides a 10 ppm tolerance which keeps bit timing jitter well within the 500 ppm USB specification budget.
What is the maximum drive level for the ABM3B-12.000MHZ-10-1-U-T, and why does it matter for crystal oscillator circuit design?
The maximum drive level for the ABM3B-12.000MHZ-10-1-U-T is 10 µW. Exceeding the specified drive level can cause over-drive, increasing aging rate and reducing long-term frequency stability. Oscillator circuits should be designed with a series resistor to limit the drive power to stay within the 10 µW limit and ensure reliable operation.
How does the 5 ppm per year aging specification of the ABM3B-12.000MHZ-10-1-U-T affect long-term calibration requirements?
With a maximum aging of 5 ppm in the first year, the ABM3B-12.000MHZ-10-1-U-T will drift no more than 60 Hz from its initial 12.000 MHz frequency in the first year of operation. This low aging rate eliminates the need for periodic recalibration in most consumer and industrial applications over a product's 5 to 10 year service life.
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