ECS-.327-7-34B-TR Surface mount tuning fork crystal with a frequency of 32.768 kHz, load capacitance 7pF, and ESR of 70kΩ. Ideal for real-time clock circuits.
Mfr Part #:

ECS-.327-7-34B-TR

Available from 1 distributors
Mfr Name: ECS Inc.
ECS Inc.
Surface mount tuning fork crystal with a frequency of 32.768 kHz, load capacitance 7pF, and ESR of 70kΩ. Ideal for real-time clock circuits.
Total Stock: 25,400 pcs

ECS-.327-7-34B-TR Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
25,400 pcs
25400 pcs On Request 1 On Request On Request On Request On Request On Request

ECS-.327-7-34B-TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
ESR (Equivalent Series Resistance)
Frequency
Frequency Tolerance
Height
Length
Load Capacitance
Mounting Type
Operating Mode
Operating Temperature
Tape & Reel
Temperature Coefficient
Type
Width

ECS-.327-7-34B-TR Description

Short technical summary and product information.

The ECS-.327-7-34B-TR is a surface mount tuning fork crystal from ECS Inc.'s ECX-31B series. It operates at a frequency of 32.768 kHz with a load capacitance of 7 pF and an equivalent series resistance of 70 kΩ. The crystal has a frequency tolerance of ±20 ppm and a temperature coefficient ranging from -0.040 to -0.028 ppm/°C², ensuring stable operation over the -40°C to +85°C temperature range.

 

Designed for low-power timekeeping applications, this crystal operates in fundamental mode and requires a drive level between 0.1 μW and 1.0 μW. It features a shunt capacitance of 1.05 pF and an insulation resistance of 500 MΩ minimum. The first-year aging is limited to ±3 ppm, and the storage temperature range extends from -55°C to +125°C.

 

The crystal is housed in a compact 3.2 mm x 1.5 mm x 0.9 mm 2-SMD no-lead ceramic package, suitable for high-density PCB designs. It is supplied on tape and reel with a standard quantity of 3000 pieces per reel. The lead finish is gold (Au) and the component is rated MSL 1 (unlimited) for moisture sensitivity.

 

This component is RoHS compliant and is commonly used in real-time clock (RTC) circuits, such as those found in microcontroller applications like STM32 reference designs. Its low power consumption and small footprint make it ideal for battery-powered portable devices.

ECS-.327-7-34B-TR Quick Information

Product Type: Crystal
Series: ECX-31B
Canonical Name: ECS Inc. ECS-.327-7-34B-TR 32.768 kHz Tuning Fork Crystal
Subcategory: Tuning Fork Crystal

ECS-.327-7-34B-TR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): MSL 1 Unlimited
REACH Status: REACH Unaffected

ECS-.327-7-34B-TR Features

  • Low profile 3.2 x 1.5 mm package.
  • Operating frequency of 32.768 kHz.
  • Load capacitance of 7 pF.
  • ±20 ppm frequency tolerance.
  • RoHS compliant and MSL 1.

ECS-.327-7-34B-TR Applications

  • Ideal for real-time clock circuits.
  • Used in low-power portable devices.
  • Suitable for microcontroller RTC modules.
  • Common in battery-powered applications.

ECS-.327-7-34B-TR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the package type of the ECS-.327-7-34B-TR?

2-SMD, No Lead ceramic package with dimensions 3.2 mm x 1.5 mm x 0.9 mm.

What is the operating temperature range?

-40°C to +85°C.

Is the ECS-.327-7-34B-TR RoHS compliant?

Yes, RoHS3 compliant.

What is the frequency of the ECS-.327-7-34B-TR?

32.768 kHz.

What load capacitance is required?

7 pF.

What is the ESR of this crystal?

70 kΩ.

Home
Account

Categories