ECS-.327-7-34B-C-TR ECS-.327-7-34B-C-TR is a 32.768 kHz tuning fork crystal in a 3.2x1.5mm surface mount package with ±10ppm frequency tolerance and 7pF load capacitance.
Mfr Part #:

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

Available from 1 distributors
Mfr Name: ECS Inc.
ECS Inc.
ECS-.327-7-34B-C-TR is a 32.768 kHz tuning fork crystal in a 3.2x1.5mm surface mount package with ±10ppm frequency tolerance and 7pF load capacitance.
✓ Total Stock: 6,045 pcs
$ Price Range: $0.30 - $0.56

ECS-.327-7-34B-C-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
6,045 pcs
6045 pcs On Request 1 On Request On Request 22+ On Request On Request

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

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

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

Short technical summary and product information.

The ECS-.327-7-34B-C-TR is a miniature tuning fork crystal from the ECX-31B series by ECS Inc. It operates at a nominal frequency of 32.768 kHz, making it ideal for real-time clock (RTC) applications. This crystal is housed in a 3.2 mm x 1.5 mm x 0.9 mm ceramic SMD package with no leads, suitable for high-density circuit boards.

 

It offers a frequency tolerance of ±10 ppm at 25°C and a load capacitance of 7 pF. The equivalent series resistance (ESR) is 70 kΩ maximum, with a typical shunt capacitance of 1.05 pF. The drive level range is 0.1 μW to 1.0 μW. The crystal operates in fundamental mode and has a temperature coefficient of -0.034 ppm/°C² typical.

 

The device operates over a temperature range of -40°C to +85°C and can be stored from -55°C to +125°C. It is RoHS compliant, lead-free, and has an MSL rating of 1 (unlimited). The turnover temperature is 20°C to 30°C, and aging is ±3 ppm in the first year.

 

This crystal is commonly used in low-power RTC circuits such as those in STM32 microcontrollers. It is supplied in tape and reel packaging with a standard quantity of 3000 pieces.

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

Product Type: Tuning Fork Crystal
Series: ECX-31B
Canonical Name: ECS Inc. ECX-31B Series 32.768 kHz Tuning Fork Crystal, 7pF, ±10ppm, Surface Mount
Subcategory: Tuning Fork Crystal

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

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

ECS-.327-7-34B-C-TR Estimated Pricing

Qty Low High
1+ $0.56 $0.56
10+ $0.48 $0.48
25+ $0.46 $0.46
50+ $0.44 $0.44
100+ $0.42 $0.42
250+ $0.40 $0.40
500+ $0.38 $0.38
1,000+ $0.36 $0.36
3,000+ $0.34 $0.34
6,000+ $0.33 $0.33
9,000+ $0.32 $0.32
15,000+ $0.31 $0.31
21,000+ $0.30 $0.30
30,000+ $0.30 $0.30

Estimated market price range - modelled values for guidance only, not live distributor offers.

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

  • 32.768 kHz tuning fork crystal for RTC applications.
  • ±10 ppm frequency tolerance at 25°C.
  • 7 pF load capacitance with 70 kΩ ESR.
  • Surface mount 3.2x1.5mm ceramic package.
  • RoHS compliant and lead-free.

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

  • Ideal for real-time clock circuits in microcontrollers.
  • Used in low-power portable electronics.
  • Suitable for battery-powered IoT devices.
  • Common in STM32-based designs for timekeeping.

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

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

32.768 kHz.

What is the frequency tolerance?

±10 ppm.

What is the load capacitance?

7 pF.

What is the equivalent series resistance (ESR)?

70 kΩ maximum.

What is the operating temperature range?

-40°C to +85°C.

What is the package size?

3.20 mm x 1.50 mm x 0.90 mm, 2-SMD no lead (34B).

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

Yes, it is RoHS3 compliant and lead-free.

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