Home > Industry Information > ABS07-32.768KHZ-9-T
The ABS07-32.768KHZ-9-T is an ultra-miniature, surface-mount tuning fork crystal resonator (commonly known as a “watch crystal”) from Abracon LLC's ABS07 series. This device provides a precise 32.768 kHz reference frequency with a load capacitance of 9pF and a frequency tolerance of ±20ppm. Housed in a leadless ceramic SMD package measuring only 3.2mm x 1.5mm x 0.9mm, it is designed for real-time clocks (RTCs), microcontroller clock sources, and portable electronic devices where space is constrained, and timing accuracy and long-term stability are required. It is a core component for building low-power, precise timing systems.
Category:Crystals, Oscillators, Resonators;Crystals
Mfr:Abracon LLC
Series:ABS07
Packaging:Tape & Reel (TR);Cut Tape (CT)
Part Status:Active
Type:kHz Crystal (Tuning Fork)
Frequency:32.768 kHz
Frequency Tolerance:±20ppm
Load Capacitance:9pF
ESR (Equivalent Series Resistance):70 kOhms
Operating Mode:Fundamental
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:2-SMD, No Lead
Supplier Device Package:2-SMD (3.2x1.5)
Size / Dimension:0.126" L x 0.059" W (3.20mm x 1.50mm)
Height - Seated (Max):0.035" (0.90mm)
Standard Timing Frequency: 32.768 kHz is the standard frequency for Real-Time Clock (RTC) circuits. Divided by 2^15, it yields exactly 1Hz (one second), forming the foundation for precise timekeeping.
Compact and Ultra-Thin Package: Features a miniature 3215 (3.2x1.5mm) leadless SMD package with a height of only 0.9mm, greatly saving both planar and vertical PCB space. It is ideal for ultra-thin portable devices like wearables and smart cards.
Specified Load Capacitance: The 9pF load capacitance is a critical design parameter, ensuring the correct selection of external matching capacitors to achieve the nominal frequency and optimal oscillation startup, minimizing frequency drift.
Good Frequency Accuracy: An initial frequency tolerance of ±20ppm meets the timing accuracy requirements for most consumer and industrial applications.
Optimized Equivalent Series Resistance: An ESR of 70kΩ ensures reliable oscillation startup and stable operation while contributing to lower overall power consumption in the oscillator circuit, extending battery life.
Wide Operating Temperature Range: Supports an ambient temperature range from -40°C to 85°C, ensuring stable operation across various climates and application environments.
High Reliability: The mature and reliable tuning fork crystal structure, combined with an SMD package suitable for automated production, ensures good consistency and long-term stability.
Smartphones, Smartwatches, Fitness Trackers: Providing an accurate date and time reference for the system.
TWS Earbuds, Portable Medical Devices: Used for recording usage time and event timestamps.
Data Loggers, Smart Meters, Environmental Monitoring Sensors: Adding precise timestamps to collected data.
Industrial PLCs & Controllers: Used for timed tasks, event logging, and watchdog timing.
In-Vehicle Infotainment Systems, Body Control Modules: Used for event logging, sleep/wake-up timing.
Routers, Switches, GPS Modules: Serving as a secondary clock or time synchronization reference.
The ABS07-32.768KHZ-9-T is a 32.768kHz tuning fork crystal that perfectly combines the classic frequency, a miniaturized package, and reliable performance. It provides designers with a market-proven, easy-to-integrate, and cost-optimized solution for precise timing. Whether for wearable devices pursuing ultimate space utilization or industrial IoT nodes requiring reliable long-term operation, this device can serve as the heart of the timing system, steadily providing the foundation of the “second.” Its clearly specified load capacitance also simplifies circuit design, making it a preferred standard component for building various real-time clock applications.
Industry Information
