ECS-.327-9-34B-TR 32.768 kHz tuning fork crystal in a compact SMD package. Features ±20ppm frequency tolerance and 9pF load capacitance.
Mfr Part #:

ECS-.327-9-34B-TR

Available from 1 distributors
Mfr Name: ECS Inc.
ECS Inc.
32.768 kHz tuning fork crystal in a compact SMD package. Features ±20ppm frequency tolerance and 9pF load capacitance.
✓ Total Stock: 8,876 pcs
$ Price Range: $0.24 - $0.45

ECS-.327-9-34B-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
8,876 pcs
8876 pcs On Request 1 On Request On Request 21+ On Request On Request

ECS-.327-9-34B-TR Specifications Quick View

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

ECS-.327-9-34B-TR Description

Short technical summary and product information.

The ECS-.327-9-34B-TR is a 32.768 kHz tuning fork crystal from the ECX-31B series by ECS Inc. Designed for ultra-low-power real-time clock (RTC) applications, it offers a load capacitance of 9 pF and a frequency tolerance of ±20 ppm at +25°C. The crystal exhibits a typical equivalent series resistance of 70 kΩ and a maximum drive level of 1 µW, ensuring stable oscillation with minimal power consumption.

 

Packaged in a miniature 3.2 mm x 1.5 mm x 0.9 mm ceramic SMD package (2-SMD, no lead), this crystal is suited for high-density circuit boards. It operates over a temperature range of -40°C to +85°C and meets MSL 1 requirements with a gold lead finish, allowing RoHS-compliant reflow soldering at up to +260°C.

 

With a turnover temperature of +25°C and a typical temperature coefficient of -0.034 ppm/°C², the ECS-.327-9-34B-TR provides reliable frequency stability across its operating range. It is particularly recommended for low-power RTC designs such as those based on STM32 microcontrollers (per AN2867). The part is available in tape-and-reel packaging for automated assembly.

ECS-.327-9-34B-TR Quick Information

Product Type: Tuning Fork Crystal
Series: ECX-31B
Canonical Name: ECS-.327-9-34B-TR 32.768 kHz Tuning Fork Crystal with 9pF Load Capacitance
Subcategory: SMD Crystals

ECS-.327-9-34B-TR Compliance

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

ECS-.327-9-34B-TR Estimated Pricing

Qty Low High
1+ $0.45 $0.45
10+ $0.39 $0.39
25+ $0.37 $0.37
50+ $0.35 $0.35
100+ $0.34 $0.34
250+ $0.32 $0.32
500+ $0.31 $0.31
1,000+ $0.29 $0.29
3,000+ $0.28 $0.28
6,000+ $0.26 $0.26
9,000+ $0.26 $0.26
15,000+ $0.25 $0.25
21,000+ $0.24 $0.24
30,000+ $0.24 $0.24

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

ECS-.327-9-34B-TR Features

  • 32.768 kHz tuning fork crystal with 9 pF load capacitance.
  • ±20 ppm frequency tolerance at +25°C.
  • Compact 3.2 x 1.5 x 0.9 mm SMD package.
  • Operating temperature range -40°C to +85°C.
  • RoHS compliant and MSL 1 rated.

ECS-.327-9-34B-TR Applications

  • Ideal for real-time clock (RTC) circuits.
  • Suitable for low-power wearable devices.
  • Used in STM32 microcontroller designs.
  • Perfect for automotive timing applications.

ECS-.327-9-34B-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the package size of the ECS-.327-9-34B-TR?

The package measures 3.20 mm x 1.50 mm x 0.90 mm in a 2-SMD, no lead ceramic package.

What is the operating temperature range?

The operating temperature range is -40°C to +85°C.

Is the ECS-.327-9-34B-TR RoHS compliant?

Yes, the datasheet states RoHS compliant (RoHS3) with lead-free gold finish.

What is the frequency tolerance?

The frequency tolerance is ±20 ppm at +25°C.

What is the load capacitance?

The load capacitance is 9 pF.

What is the typical ESR value?

The typical equivalent series resistance is 70 kΩ.

What series does the ECS-.327-9-34B-TR belong to?

It belongs to the ECX-31B series of SMD tuning fork crystals.

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