WC146SMF-32.768KHZ-T

$0.78

Description：CRYSTAL 32.7680KHZ 12.5PF SMD
Series：WC146SM
Mfr：MMD
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:93f8f3b170c1 Category: Crystals Brand: MMD

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Product introduction

WC146SMF-32.768KHZ-T is listed in the Crystals range at ChipApex. The manufacturer field lists MMD. Its product description is CRYSTAL 32.7680KHZ 12.5PF SMD. Review the specifications below when checking this part for your BOM.

Crystals specifications for WC146SMF-32.768KHZ-T

Description：CRYSTAL 32.7680KHZ 12.5PF SMD
Series：WC146SM
Mfr：MMD
Package：Tape & Reel (TR),Cut Tape (CT)
Type：kHz Crystal (Tuning Fork)
Frequency：32.768 kHz
Frequency Stability：-
Frequency Tolerance：±20ppm
Load Capacitance：12.5pF
ESR (Equivalent Series Resistance)：65 kOhms
Operating Mode：Fundamental
Operating Temperature：-40°C ~ 85°C
Ratings：-
Mounting Type：Surface Mount
Package / Case：4-SMD, Flat Leads
Size / Dimension：0.264" L x 0.059" W (6.70mm x 1.50mm)
Height - Seated (Max)：0.055" (1.40mm)

Crystals datasheet and documents for WC146SMF-32.768KHZ-T

WC146SMF-32.768KHZ-T

Crystals Overview

The MMD WC146SMF-32.768KHZ-T is a fundamental mode quartz crystal resonator designed for low-power real-time clock applications. It features a nominal frequency of 32.768 kHz with a standard frequency tolerance of ±20 ppm and a load capacitance of 12.5 pF. The component exhibits an equivalent series resistance (ESR) of up to 65 kΩ and a maximum drive level of 1 μW. It operates within a temperature range of -40°C to +85°C, with a first-year aging rate of ±3 ppm. The unit utilizes a compact cylindrical package measuring 7 mm in length and 1.4 mm in height.

Crystals Feature Summary

Ultra-thin 1.4 mm profile optimized for constrained vertical stacking spaces
High ESR specification suitable for ultra-low power RTC circuits
Parabolic temperature stability centered at 25°C
RoHS compliant lead-free construction

Crystals Applications

Wearable physiological monitoring devices
TWS earbuds and audio accessories
Thin IoT sensors and card-style access control systems

Crystals Procurement Notes

Verify the specific suffix against the official datasheet to confirm packaging format and tolerance grade. Ensure the load capacitance matches the target RTC chip requirements to prevent frequency deviation. Confirm RoHS compliance status if required by project specifications.

Crystals Selection Notes

Select this model when vertical PCB space is strictly limited below 1.5 mm. Prioritize this part for designs requiring high ESR compatibility with nano-ampere RTC chips. Consider custom tolerance grades if annual drift exceeds standard consumer limits.

Crystals Part Context

This component belongs to the WC146SM series, which provides specialized thin-profile solutions compared to standard WC26 or WC38 cylindrical crystals. It addresses the mechanical constraints of modern miniaturized electronics where traditional 3215 packages exceed available height allowances.