2-pad 3.3x1.6mm crystal


SM 32.768kHz Watch Crystal with Military Temperature Range

  • Miniature ceramic package with metal lid
  • High shock & vibration resistance
  • Extended temperature range options
  • AEC-Q200 Automotive option
  • Optional low ESR of 40kΩ typ 
Configurable Options
ParameterOption Code
Calibration tolerance
Operating temperature range
Circuit condition
Equivalent series resistance (ESR)
Quantity / Special Request

Please specify the quantity you require below.

The CM7V-T1A is supplied on tape and reel. 1k, 3k or 14k pcs per reel are the standard T&R pack sizes for this product. Partial quantities may be supplied on tape (no reel), or in bulk.

Product Description

The CM7V-T1A surface mount watch crystal is ideal for military and automotive projects and offers high shock and vibration resistance within a miniature ceramic package with metal lid. 

The CM7V-T1A can be configured to your choice of a range of specifications, including operating temperature range, circuit condition and calibration tolerance. This 32.768kHz crystal has low power consumption as standard and features miniature 3.2 x 1.5mm footprint package.

Optional automotive and military operating temperature ranges and AEC-Q200 qualification, mean this 32.768kHz crystal is available for a wide range of applications. Additionally a low ESR option of 40kΩ typ is also available.

Frequency 32.768kHz
Dimensions 3.2 x 1.5 x 0.65mm
Storage temperature range -55 to +125°C
Static capacitance (C0) 1.2pF typ (1.3pF typ option L)
Motional capacitance (C1) 3.7fF typ (4.7fF typ option L)
Ageing ±3ppm max first year
Drive level 1.0µW max
Turnover temperature (T0) +25°C ±5°C
Frequency / temp coefficient -0.035ppm/°C2 ±10%
Shock resistance ±5ppm, 5,000g, 0.3ms, ½ sine
Vibration resistance ±5ppm, 20g, 10.0 ~ 2,000Hz
Terminations Gold plated pads
Soldering condition Reflow, 260°C, 20 sec max
Package Drawing
Package footprint and pad configuration drawing for the Golledge CC7 Crystals showing full dimensions.
Ordering Information

To request a quotation for the CM7V-T1A 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 CM7V-T1A is included in the following design libraries. Click to download the library of your choice.

Tape & Reel Specification
Tape and Reel specifications for the GTXO-C77V

A:178* B:12 C:3.5 D:1.8 E:4 F:1.1 G:80 H:21
*Larger reel size available. Please ask for details

Handling & Storage

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

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


Ceramic base with metal lid


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.