C3391-19.440 Equivalent & Substitute Parts

Part Overview

The C3391-19.440 is a 19.44 MHz XO (Standard) HCMOS Oscillator manufactured by Crystek Corporation. This surface mount crystal oscillator operates at 3.3V with Enable/Disable functionality, housed in a 4-SMD, No Lead package. The part is Active status and ROHS3 Compliant, making it suitable for applications requiring precise frequency generation with low power consumption and compact form factor. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

C3391-19.440

Crystek CorporationIn Stock: 919C3391-19.440 Datasheet

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CE3391-19.440

Crystek CorporationIn Stock: 2225CE3391-19.440 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the C3391-19.440 is determined by strict alignment of the following critical parameters:

• Frequency: 19.44 MHz (exact match required)
• Output Type: HCMOS (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Package Type: 4-SMD, No Lead (exact match required)
• Package Dimensions: 0.283" L x 0.205" W / 7.20mm x 5.20mm (exact match required)
• Height (Seated Max): 0.071" (1.80mm) (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• MSL Rating: 1 (Unlimited) (exact match required)

The CE3391-19.440 meets all substitution criteria. The primary difference is the extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C), which represents an expansion of the allowable operating envelope and does not restrict substitution capability.

Parameter Comparison

Engineering Selection Recommendations

Both the C3391-19.440 and CE3391-19.440 are Active status products manufactured by Crystek Corporation within the C33 series. Both parts maintain ROHS3 Compliance and REACH Unaffected status, ensuring regulatory alignment for industrial and commercial applications.

The CE3391-19.440 provides an extended operating temperature range of -40°C ~ 85°C compared to the C3391-19.440 range of 0°C ~ 70°C. This expanded temperature specification does not introduce incompatibility; rather, it qualifies the CE3391-19.440 for applications requiring operation across wider environmental conditions. Selection between these parts should be based on application temperature requirements and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the CE3391-19.440 be used as a direct replacement for the C3391-19.440?

A: Yes. The CE3391-19.440 meets all electrical and mechanical substitution criteria. Both parts share identical frequency (19.44 MHz), output type (HCMOS), supply voltage (3.3V), function (Enable/Disable), frequency stability (±25ppm), package type (4-SMD, No Lead), and physical dimensions. The extended operating temperature range of the CE3391-19.440 does not restrict its use in applications designed for the C3391-19.440.

Q: What is the primary difference between these two parts?

A: The operating temperature range differs. The C3391-19.440 operates from 0°C to 70°C, while the CE3391-19.440 operates from -40°C to 85°C. All other electrical and mechanical parameters are identical.

Q: Are there any package or footprint differences?

A: No. Both parts use the identical 4-SMD, No Lead package with dimensions of 0.283" L x 0.205" W (7.20mm x 5.20mm) and a maximum seated height of 0.071" (1.80mm). PCB layout and assembly processes require no modification.

Q: Do both parts have the same compliance certifications?

A: Yes. Both the C3391-19.440 and CE3391-19.440 are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99.

Q: Which part should I select for my application?

A: Selection depends on your application's operating temperature requirements. If your design operates within 0°C to 70°C, either part is suitable. If your application requires operation below 0°C or above 70°C, the CE3391-19.440 with its -40°C to 85°C range is the appropriate choice.