FD5000038 XTAL OSC XO 50.0000MHZ CMOS SMD Equivalent & Substitute Parts

Part Overview

The FD5000038 is a 50 MHz XO (Standard) CMOS Oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FD series. This surface mount crystal oscillator operates at 3.3V with Enable/Disable functionality and is housed in a 4-SMD, No Lead package. The device is Active status and widely used in timing-critical applications requiring stable frequency generation. Substitute parts are identified when inventory constraints, lead time requirements, or packaging preferences necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

FD5000038

Diodes IncorporatedIn Stock: 763FD5000038 Datasheet

Current PartRFQ

FD5000033

Diodes IncorporatedIn Stock: 829FD5000033 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FD5000038 is determined by strict equivalence across the following critical parameters:

• Frequency: 50 MHz (exact match required)
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable capability
• Package Type: 4-SMD, No Lead
• Physical Dimensions: 5.00mm x 3.20mm x 1.30mm (max height)
• Mounting Type: Surface Mount
• Operating Temperature Range: -20°C ~ 70°C minimum
• RoHS Compliance: ROHS3 Compliant

The FD5000033 qualifies as a direct substitute based on identical electrical specifications, package configuration, and compliance certifications. Variations in frequency stability (±25ppm vs ±20ppm) and packaging format (Bulk vs standard) do not preclude substitution when application tolerance requirements permit.

Parameter Comparison

Engineering Selection Recommendations

Both FD5000038 and FD5000033 are Active status products from Diodes Incorporated with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Frequency stability requirements: FD5000038 offers ±20ppm stability; FD5000033 provides ±25ppm stability. Applications requiring tighter frequency tolerance should specify FD5000038.
• Packaging and inventory: FD5000033 is available in Bulk packaging format, which may be advantageous for high-volume procurement or when standard packaging is not required.
• Lead time and availability: Both parts maintain active inventory. Selection may depend on current stock levels and supplier delivery schedules.
• Compliance requirements: Both parts meet identical regulatory and environmental compliance standards (ROHS3, REACH, MSL 1).

Frequently Asked Questions (FAQ)

Q: Can FD5000033 be used as a direct replacement for FD5000038 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters including frequency, voltage, output type, package configuration, and operating temperature range. The frequency stability difference (±25ppm vs ±20ppm) is the only specification variance and does not affect pin compatibility or physical fit.

Q: What is the significance of the frequency stability difference between these parts?

A: Frequency stability defines the maximum deviation from the nominal 50 MHz frequency across operating conditions. FD5000038 maintains ±20ppm tolerance, while FD5000033 maintains ±25ppm tolerance. Applications with strict frequency accuracy requirements should use FD5000038. Most general-purpose timing applications tolerate the wider ±25ppm specification of FD5000033.

Q: Are there packaging differences between FD5000038 and FD5000033?

A: Both parts use identical 4-SMD, No Lead surface mount packages with 5.00mm x 3.20mm x 1.30mm (max) dimensions. The difference noted in the data is packaging format (standard vs Bulk), which refers to how the parts are supplied by the manufacturer, not the component package itself. PCB footprints and assembly processes are identical.

Q: Do both parts require the same PCB layout and design considerations?

A: Yes. Identical package type, dimensions, and pin configuration mean both parts use the same PCB footprint and layout requirements. No design modifications are necessary when substituting between FD5000038 and FD5000033.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning the component can be stored indefinitely without moisture baking requirements prior to soldering. Both parts carry this classification, simplifying inventory management and reducing manufacturing process constraints.