3215 SM watch crystal


Miniature SM 32.768kHz Watch Crystal

  • Miniature ceramic package with metal lid
  • Vacuum seal for excellent long-term stability
  • Low cost for volume applications
  • Low power consumption
Configurable Options
ParameterOption Code
Calibration tolerance
Circuit condition
Quantity / Special Request

Please specify the quantity you require below.

The GSX-315 is supplied on tape and reel. 9k pcs per reel is the standard T&R pack size for this product. Partial quantities may be supplied on tape (no reel), or in bulk.

Product Description

The GSX-315 watch crystal offers highly competitive pricing and low power consumption in a miniature vacuum sealed ceramic package.

The GSX-315 can be configured to your choice of calibration tolerance and circuit condition. This 32.768kHz crystal has low power consumption as standard and features miniature 3.2 x 1.5mm footprint package.

For an AEC-Q200 qualified version for automotive applications please see the GRX-315 which comes with full AEC-Q200 qualification as standard, with PPAP documentation available on request.

Frequency 32.768kHz
Dimensions 3.2 x 1.5 x 0.9mm
Operating temperature range -40 to +85°C
Storage temperature range -55 to +125°C
Static capacitance (C0) 2.0pF max
Motional capacitance (C1) 3.0fF min
Equivalent series resistance 50kΩ typ, 70kΩ max @ 25°C
Ageing ±3ppm max first year
Drive level 0.1µW typ, 0.5µW max
Turnover temperature (T0) +25°C ±5°C
Frequency / temp coefficient -0.04ppm/°C2 max
Shock resistance 3,000g, 0.3ms, ½ sine
Vibration resistance 20g, 55.0 ~ 2,000Hz
Soldering condition Reflow, 260°C, 20 sec max
Net mass 25.5mg
Package Drawing
Package footprint and pad configuration drawing for the Golledge GRX-315 / GRX-315 Crystal showing full dimensions.
Ordering Information

To request a quotation for the GSX-315 please use the configurable options form to choose the options you require and then submit your configured product to our team. Our expert advisers are always happy to help with your requirements and can be contacted on +44 1460 256 100 or at sales@golledge.com.

Following product selection you will be issued with a seven character Golledge part number. Your Golledge part number is the internationally accepted Golledge manufacturing part number (MPN) that should be used for all project documentation, including bills of materials (BoMs) and purchase orders.

If you have any queries regarding any of our documentation our dedicated sales team will be happy to help.

CAD Models

Our GSX-315 is included in the following design libraries. Click to download the library of your choice.

Soldering Profile
Solder reflow profile for the GTXO-C77V
Tape & Reel Specification
Tape and Reel specifications
Handling & Storage

ESD-HBM-1A Human Body Model (HBM) 1A (250V to <500V)

MSL1 Moisture Sensitivity Level (MSL): 1 (or not applicable)

  • Ceramic body with gold-plated pads
  • Metal lid, seam sealed

Please refer to our DOCUMENTS section for more information.

PbFree Lead-free (< 0.1% by weight )

RoHS compliant no exempts - PS Docs Version RoHS compliant with no exemptions.

REACH - PS Docs Version REACH compliant.

Conflict minerals - PS Docs version Free of conflict minerals.

Halogen free - PS Docs version Free from halogens.

Ozone depleting - PS Docs version Free from ozone-depleting substances.


We are proud to announce three Golledge crystals have been approved for use with the new Nordic Semiconductor nRF52840


MP06003, MP07668, and MP05346 have been awarded a design win by Nordic Semiconductor. Find more information on this announcement here.