ECS-320-CDX-2503 32 MHz Quartz Crystal

Introduction

The ECS-320-CDX-2503 is a 32 MHz, fundamental-mode AT-cut quartz crystal intended for frequency-control and clock-generation circuits. Its combination of a compact 2.0 mm × 1.6 mm SMD footprint, 10 pF load capacitance, and specified operation from -40°C to +85°C makes it suited to space-constrained electronic designs requiring a discrete crystal reference.

The device specifies ±10 ppm frequency tolerance at +25°C ±3°C and ±30 ppm frequency stability across its operating-temperature range. These parameters provide defined frequency behavior for designs in which clock accuracy over temperature is an important selection criterion.

What it does

This component provides a 32 MHz resonant frequency reference for use with compatible oscillator circuitry. It operates in fundamental mode, rather than relying on an overtone of a lower-frequency resonator, and is specified for a 10 pF load capacitance.

The crystal has a maximum equivalent series resistance of 50 Ω and is intended for drive levels between 10 µW and 100 µW. It also specifies 0.6 pF typical shunt capacitance and a recommended oscillation margin of at least 600 MΩ. These characteristics are relevant when matching the crystal to the oscillator circuit that will excite it.

The laser-marked device is supplied in tape-and-reel packaging and carries an MSL 1 rating.

Applications

Potential uses that follow from its stated frequency-control role include:

• Clock-reference circuits using a 32 MHz crystal
• Frequency-generation sections of embedded electronic assemblies
• Compact SMD designs requiring a discrete quartz resonator
• Electronic equipment intended to operate across a -40°C to +85°C ambient range
• Designs where a 10 pF crystal load-capacitance target is appropriate

Design considerations

The ECS-320-CDX-2503 is an SMD/SMT component measuring 2 mm × 1.6 mm with a 0.45 mm height, so PCB land-pattern design, assembly handling, and enclosure clearance should accommodate its compact package.

Oscillator compatibility should be checked against the specified 32 MHz fundamental-mode operation, 10 pF load capacitance, and 50 Ω maximum ESR. The connected oscillator circuit should also keep crystal drive within the specified 10 µW to 100 µW range. Frequency tolerance is specified at +25°C ±3°C, while the ±30 ppm stability figure applies over -40°C to +85°C; these are distinct conditions to consider in a clock-accuracy budget.

The part is RoHS compliant and rated MSL 1. Tape-and-reel supply is relevant for automated SMT assembly workflows.

Availability and further information

Further technical information is available through the Mouser Electronics source link and the datasheet link provided on this page.