CE3390-19.440 Equivalent & Substitute Parts

Part Overview

The CE3390-19.440 is a 19.44 MHz XO (Standard) HCMOS Oscillator manufactured by Crystek Corporation, designed for 3.3V applications with Enable/Disable functionality. This surface mount component operates across the industrial temperature range of -40°C to 85°C and is specified with ±100ppm frequency stability. The part is Active status and ROHS3 compliant, making it suitable for current production applications. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, inventory optimization, or supply chain continuity.

Substiute Parts

CE3390-19.440

Crystek CorporationIn Stock: 933CE3390-19.440 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 CE3390-19.440 is determined by strict equivalence across 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)
• Package / Case: 4-SMD, No Lead (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Current - Supply (Max): 18mA (exact match required)
• Physical 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)

The CE3391-19.440 qualifies as a direct substitute based on full alignment with all critical electrical and mechanical parameters. Frequency stability differs between the two parts but does not disqualify substitution when application requirements permit the specified tolerance.

Parameter Comparison

Engineering Selection Recommendations

Both CE3390-19.440 and CE3391-19.440 are Active status components manufactured by Crystek Corporation and maintain full ROHS3 compliance and REACH unaffected status. Selection between these parts is determined by application-specific frequency stability requirements. The CE3390-19.440 operates at ±100ppm frequency stability, while the CE3391-19.440 provides improved stability at ±25ppm. Both parts are suitable for production use and carry identical electrical and mechanical specifications across all other parameters. Inventory availability and supply chain considerations may also influence part selection, as the CE3391-19.440 currently maintains higher stock levels (2117 Pcs vs. 850 Pcs).

Frequently Asked Questions (FAQ)

Q: Can CE3391-19.440 be used as a direct replacement for CE3390-19.440?

A: Yes. Both parts share identical electrical specifications (frequency, output type, supply voltage, function, current draw) and mechanical specifications (package, dimensions, height). The CE3391-19.440 provides superior frequency stability (±25ppm vs. ±100ppm) and is therefore suitable for applications where the CE3390-19.440 is specified, provided the application does not require the specific ±100ppm tolerance.

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

A: Frequency stability is the distinguishing parameter. The CE3390-19.440 is specified at ±100ppm, while the CE3391-19.440 is specified at ±25ppm. All other electrical and mechanical characteristics are identical.

Q: Are the physical packages identical?

A: Yes. Both parts use the 4-SMD, No Lead package with identical dimensions (0.283" L x 0.205" W / 7.20mm x 5.20mm) and maximum seated height (0.071" / 1.80mm). PCB layout and reflow profiles are compatible.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CE3390-19.440 and CE3391-19.440 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which part should be selected for new designs?

A: Selection depends on application frequency stability requirements. If ±100ppm stability is acceptable, either part is suitable. If tighter stability is required, the CE3391-19.440 with ±25ppm specification is the appropriate choice.