ABM3B-155-12.800MHZ-T ABRACON Crystal or Oscillator (Other) In Stock
ABRACON ABM3B-155-12.800MHZ-T is a 12.800 MHz SMD 4-pin parallel fundamental mode quartz crystal with 16 pF load capacitance and ±10 ppm frequency tolerance. It features a 10 µW drive level, 5 ppm/year aging rate, and surface mount packaging for precision timing in embedded systems and communications equipment.
- Manufacturer
- ABRACON
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- ABM3B-155-12.800MHZ-T Datasheet PDF
- Category
- Crystal or Oscillator
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12.800 MHz fundamental mode quartz crystal with ±10 ppm frequency tolerance for precision timing
- 16 pF load capacitance for direct compatibility with standard crystal oscillator circuits
- Ultra-low 10 µW drive level minimizing power consumption in battery-powered and low-power designs
- 5 ppm/first year aging rate ensuring long-term frequency stability over product lifetime
- 4-pin SMD surface mount package enabling compact automated PCB assembly
Applications
The ABM3B-155-12.800MHZ-T is commonly used as the clock source for microcontrollers, USB interface controllers, and Bluetooth/Wi-Fi modules requiring a stable 12.800 MHz reference frequency. Its ±10 ppm tolerance and low drive level make it well-suited for IoT devices, industrial communication modules, and portable consumer electronics where frequency accuracy and low power consumption are critical.
Specifications
| Factory Lead Time | 12Weeks |
| YTEOL | 7.05 |
| Aging | 5 PPM/FIRST YEAR |
| Crystal/Resonator Type | PARALLEL - FUNDAMENTAL |
| Drive Level | 10 µW |
| Frequency Stability | 0.002% |
| Frequency Tolerance | 10ppm |
| JESD-609 Code | e4 |
| Load Capacitance | 16pF |
| Mounting Feature | SURFACE MOUNT |
| Operating Frequency-Nom | 12.8MHz |
| Physical Dimension | 5.0mm x 3.2mm x 1.1mm |
| Series Resistance | 70Ω |
| Surface Mount | YES |
| Terminal Finish | Nickel/Gold (Ni/Au) |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What load capacitance must be matched in the oscillator circuit for the ABM3B-155-12.800MHZ-T to operate at its rated 12.800 MHz frequency?
The ABM3B-155-12.800MHZ-T specifies a 16 pF load capacitance. The external oscillator circuit must present 16 pF total load at the crystal pins—accounting for PCB stray capacitance and the microcontroller's internal capacitors—to achieve the rated 12.800 MHz fundamental frequency within the ±10 ppm tolerance band.
How does the 5 ppm/first year aging specification affect long-term clock accuracy in embedded communication systems?
Aging of 5 ppm per first year means the ABM3B-155-12.800MHZ-T may drift up to 5 ppm from its nominal 12.800 MHz frequency in the first year of operation. For USB or Bluetooth protocols with tight ±25 ppm or ±50 ppm tolerance windows, this aging rate still leaves substantial margin, though designers should include it in overall frequency budget calculations.
What does the 12-week factory lead time mean for sourcing the ABM3B-155-12.800MHZ-T and how should engineers plan production inventory?
With a 12-week factory lead time, procurement teams should place orders approximately 3 months before the production start date. Maintaining at least 6 to 8 weeks of safety stock and establishing annual blanket purchase orders with distributors reduces the risk of line stoppages for designs that depend on this 12.800 MHz crystal in high-volume production.
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