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ECS Inc Precision and Power

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ECS Inc. International is your trusted partner in frequency control and power management solutions. With over 45 years of expertise, we deliver exceptional quality, unmatched reliability and superior performance to meet the evolving demands of today’s most advanced applications.

From automotive and industrial systems to networking and IoT, our products are at the heart of the technologies shaping the future. Partner with ECS Inc. for innovative solutions, dedicated support and a commitment to driving your success with fully registerable products.


ECX-31B

ECX-31B

The ECX-31B is the most cost-effective compact surface mount 32.768 kHz tuning fork that comes in a 3.2 mm x 1.5 mm x 0.9 mm package. The ECX-31B offers a standard version with a frequency tolerance of ±20 ppm available over the standard industrial temperature range of -40°C ~ +85°C. This component is recommended for the STM32 via the AN2867. This component is ideal for mobile, industrial and wireless applications. 

PRODUCTS: ECS-327-12.5-34B-TRCS-327-9-34B-TR | ECS-327-7-34B-TR

ECX-12

ECX-12

The ultra-miniature ECX-12 is a compact surface mount 32.768 kHz tuning fork that comes in a 2.0 mm x 1.2 mm x 0.6 mm package. The ECX-12 offers a tolerance of ±20 ppm available over the standard industrial temperature range of -40°C ~ +85°C. This component is ideal for mobile devices, IoT, real time clocks and industrial applications. This component is recommended for the STM32 via the AN2867.

PRODUCTS: ECS-327-7-12-TRECS-327-9-12-C-TR | ECS-327-6-12-TR

ECX-33Q

ECX-33Q

The ECX-33Q AEC-Q200 qualified SMD MHz crystal is available in a 3.2 mm x 2.5 mm x 0.8 mm 4-pad package. The ECX-33Q offers a JES version with a frequency tolerance option of ±20 ppm and frequency stability of ±50 ppm available over the extended temperature range of -40°C ~ +125°C. This component is ideal for automotive, IoT and wireless applications. 

PRODUCTS: ECS-250-12-33Q-JES-TR | ECS-200-18-33Q-DS | ECS-160-18-33Q-DS

ECX-16

ECX-16

The ECX-16 is a compact surface mount 32.768 kHz tuning fork that comes in a 1.6 mm x 1.0 mm x 0.5 mm package. The ECX-16 offers an ESR of 90 kΩ and tolerance of ±20 ppm available over the standard industrial temperature range of -40°C ~ +85°C. This component is ideal for mobile devices, wearables, industrial and wireless applications. This component is recommended for the STM32 via the AN2867

PRODUCTS: ECS-327-12.5-16-TRECS-327-7-16-C-TRECS-327-9-16-TR

ECX-2236B - mm

ECX-2236B

ECS Inc.’s ECX-2236B is surface mount crystal that comes in a 2.5 mm x 2.0 mm x 0.5 mm 4-pad package. Boasting low ±1 ppm first year aging, the ECX-2236B offers a frequency tolerance of ±10 ppm available over a temperature range of -30°C ~ +85°C. This component is ideal for wireless and industrial applications where a small form factor is critical.

PRODUCTS:  ECS-120-10-36B-CWY-TR | ECS-260-8-36B-CKY-TR

ECX-2236B chip

ECX-12R

ECX-12R

The ECX-12R is a compact surface mount 32.768 kHz tuning fork that comes in a 2.0 mm x 1.2 mm x 0.6 mm package. The ECX-12R offers an ESR of 70 kΩ and tolerance of ±20 ppm available over the standard industrial temperature range of -40°C ~ +85°C. Due to the low ESR, this component is ideal for industrial, IoT and wearable applications. 

PRODUCTS: ECS-327-12.5-12R-TRECS-327-6-12R-TR

ECS-390-CDX-1932

ECS-390-CDX-1932

The CDX-1932 is a surface mount quartz crystal that comes in a 2.0 mm x 1.6 mm x 0.45 mm package size. This 39 MHz crystal features a ±8ppm tolerance over -40°C ~ +95°C operating temperature with an ESR of 35 Ω. This component is ideal for mobile devices, industrial, wireless and IoT applications. We suggest the Silicon Labs Multi-Protocol Wireless Gecko EFR32 and EFM32 SoCs for use with this crystal including but not limited to: EFR32BG21, EFR32MG21, EFR32BG22, EFR32FG22, EFR32MG22, EFR32FG23, EFR32ZG23, EFR32SG23, EFR32MG24, EFR32FG25, EFR32BG27, EFR32MG27, EFR32FG28, EFR32ZG28, EFR32SG28, EFM32PG22, EFM32PG23 and EFM32PG28  

PRODUCTS: ECS-390-CDX-1932

ECX-1210

ECX-1210

The ECX-1210 is the industry's and ECS Inc.'s smallest 32.768 kHz tuning fork crystal that comes in a 1.2 mm x 1.0 mm x 0.5 mm package. The ECX-1210 offers a tolerance of ±20 ppm available over the standard industrial temperature range of -40°C ~ +85°C. This component is ideal for LoRaWAN, wearable, IoT and medical applications. This component is recommended for the STM32 via the AN2867. 

PRODUCTS: ECS-327-12.5-1210-TRECS-327-9-1210-TRECS-327-7-1210-TR

ECX-34Q

ECX-34Q

The ECX-34Q from ECS Inc. is an AEC-Q200 qualified, compact surface mount 32.768 kHz tuning fork that comes in a 3.2 mm x 1.5 mm x 0.9 mm 2-pad package. The ECX-34Q offers a ESR of 70kW available over the extended temperature range of -40°C ~ +125°C. This component is recommended by ST Micro for STM32 processor. This component is ideal for automotive, IoT and mobile applications. 

PRODUCTS: ECS-327-7-34QS-TRECS-327-9-34QCN-TR | ECS-327-12.5-34QCS-TR

ECX-32

ECX-32

The ECX-32 is a compact surface mount crystal that comes in a 3.2 mm x 2.5 mm x 0.8 mm 4-pad package. The ECX-32 offers a standard version with a tight ±10 ppm stability and tight ±10 ppm tolerance available over the industrial temperature range of -20°C ~ +70°C. There are extended temperature range options available for This component is ideal for Wi-Fi, Bluetooth and IoT applications. 

PRODUCTS: ECS-120-8-33-JGN-TR | ECS-250-20-33-TR

ECS-2520MVLC- mm

ECS-2520MVLC

The ECS-2520MVLC is a 2.5 mm x 2.0 mm x 0.8 mm HCMOS surface mount oscillator with MultiVolt™ capabilities. This RoHS compliant electronic component offers a low current and low jitter over the standard industrial temperature range of –40°C ~ +85°C with extended temperature range options available. This component is ideal for LoRaWAN, low power and portable, industrial and IoT applications.

PRODUCTS: ECS-2520MVLC-018-BN-TR | ECS-2520MVLC-240-BN-TR

ECS-2520MVLC chip

ECS-2520MV

ECS-2520MV

The ECS-2520MV is a standard small form factor HCMOS surface mount oscillator with MultiVolt™ capabilities. This electronic component is ideal for wireless and IoT applications where stability is critical with ±50 PPM and ±25 PPM stabilities available over the standard industrial temperature range -40°C ~ +85°C.

PRODUCTS: ECS-2520MV-160-CN-TRECS-2520MV-250-CN-TRECS-2520MV-240-BN-TR

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Webinar: Frequency Control Solutions for STM32, STM8, and SPC5 MCUs

When: June 4, 2025 @ 2:00 PM ET
Discover how precision timing solutions like crystals, oscillators, and resonators optimize performance and reliability in IoT, automotive, and industrial applications, while simplifying MCU integration and design processes.

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STM32 Crystal Selection Tool

This ECS Inc. tool makes selecting the precision clocks required for the ST Microelectronics STM32 series of MCUs easy. The tool offers selections for the LSE Low Speed External 32.768 KHz watch cryst