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ECS-221-S-4 The ECS-221-S-4 is a 22.1184 MHz quartz crystal in a through-hole HC-49/US package. It features Series resonance, ±30ppm frequency tolerance, and ±50ppm stability over -10°C to +70°C.
Mfr Part #:

ECS-221-S-4

Available from 1 distributors
Mfr Name: ECS Inc.
ECS Inc.
The ECS-221-S-4 is a 22.1184 MHz quartz crystal in a through-hole HC-49/US package. It features Series resonance, ±30ppm frequency tolerance, and ±50ppm stability over -10°C to +70°C.
Total Stock: 19 pcs
$ Price Range: $0.19 - $0.51

ECS-221-S-4 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
19 pcs
19 pcs On Request 1 On Request On Request On Request On Request On Request

ECS-221-S-4 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Aging
Drive Level
ESR (Equivalent Series Resistance)
Equivalent Series Resistance
Frequency
Frequency Stability
Frequency Tolerance
Height
Length
Load Capacitance
Mounting Type
Operating Mode
Operating Temperature
Package / Case
Shunt Capacitance
Storage Temperature
Type
Width

ECS-221-S-4 Description

Short technical summary and product information.

The ECS-221-S-4 is a fundamental mode quartz crystal resonator from ECS Inc. It operates at 22.1184 MHz with a Series load capacitance, making it suitable for oscillator circuits requiring precise frequency control.

 

With a frequency tolerance of ±30ppm at 25°C and frequency stability of ±50ppm over the operating temperature range of -10°C to +70°C, this crystal ensures reliable performance. The maximum equivalent series resistance (ESR) is 30 Ω, and the drive level is limited to 0.5 mW.

 

The crystal is housed in a low-profile HC-49/US resistance weld package with a height of 3.5 mm. It is designed for through-hole mounting, suitable for automated insertion and manual assembly.

ECS-221-S-4 Quick Information

Product Type: MHz Crystal
Canonical Name: ECS-221-S-4 Crystal, 22.1184 MHz, Series, HC-49/US, Through Hole
Subcategory: MHz Crystal

ECS-221-S-4 Compliance

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

ECS-221-S-4 Estimated Pricing

Qty Low High
1+ $0.51 $0.51
200+ $0.20 $0.20
500+ $0.19 $0.19
1,000+ $0.19 $0.19

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

ECS-221-S-4 Features

  • 22.1184 MHz fundamental mode quartz crystal.
  • Series resonance load capacitance.
  • ±30ppm frequency tolerance at 25°C.
  • HC-49/US low-profile through-hole package.
  • Maximum ESR of 30 Ω.

ECS-221-S-4 Applications

  • Ideal for precision oscillator circuits.
  • Used in microcontroller clock generation.
  • Suitable for communication timing modules.
  • Applies to embedded system time bases.

ECS-221-S-4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the frequency of the ECS-221-S-4 crystal?

22.1184 MHz.

What load capacitance is required?

Series resonance.

What is the frequency tolerance?

±30ppm at 25°C.

What is the frequency stability?

±50ppm over -10°C to +70°C.

What is the maximum ESR?

30 Ω.

What is the operating temperature range?

-10°C to 70°C.

Is the ECS-221-S-4 RoHS compliant?

Yes, it is RoHS3 compliant.

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