EmbeddedRelated.com
    Parts    ABS04W-32.768KHZ-6-B2-T5
ABS04W-32.768KHZ-6-B2-T5

ABS04W-32.768KHZ-6-B2-T5

Abracon LLC
32.768 kHz ±20ppm Crystal 6pF 130 kOhms 4-SMD, No Lead
Active2,365 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The ABS04W-32.768KHZ-6-B2-T5 is an ultra-miniature tuning fork crystal designed for space-constrained timing applications. Measuring just 1.20mm x 1.00mm with a low profile of 0.35mm, it provides a stable 32.768 kHz reference clock with a 6pF load capacitance. This component is optimized for low-power RTC circuits where PCB real estate is at a premium.

Why Choose This Part

The primary advantage is its exceptionally small form factor and ultra-low profile of 0.35mm, making it one of the thinnest crystals available. It offers a standard +/-20ppm frequency tolerance and is designed for high-density surface mount assembly in portable devices.

Applications

Real-Time Clock (RTC) References
Provides the 32.768 kHz base frequency for timekeeping in microcontrollers and dedicated RTC ICs.
Ultra-Low Power Sleep Modes
Acts as the low-frequency clock source for maintaining system timers while the main high-speed oscillator is disabled.
Wearable Electronics
Fits within the tight height and footprint constraints of smartwatches, fitness trackers, and hearing aids.
IoT Sensor Nodes
Enables accurate interval wake-ups for battery-operated wireless sensors requiring long operational lifespans.

Key Specifications

Type kHz Crystal (Tuning Fork)
Frequency 32.768 kHz
Mounting Type Surface Mount
Operating Mode Fundamental
Package / Case 4-SMD, No Lead
Load Capacitance 6pF
Size / Dimension 0.047" L x 0.039" W (1.20mm x 1.00mm)
Frequency Tolerance +/-20ppm
Height - Seated (Max) 0.014" (0.35mm)
Operating Temperature -20degC ~ 70degC
Supplier Device Package 4-SMD (1.2x1)
ESR (Equivalent Series Resistance) 130 kOhms

Getting Started

Ensure the PCB layout minimizes stray capacitance around the crystal pins, as this is a 6pF load capacitance part. Match the crystal with appropriate C1 and C2 load capacitors based on the microcontroller datasheet's oscillator gain and the estimated board trace capacitance.

Also Consider

ECS-.327-6-1210-TR ECS Inc. - An equivalent 1.2mm x 1.0mm package size with 6pF load capacitance for direct footprint compatibility.