FN5000109 Equivalent & Substitute Parts

Part Overview

The FN5000109 is a 50 MHz crystal oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FN series. This LVCMOS oscillator operates at 3.3V with enable/disable functionality in a 4-SMD, no-lead surface mount package. The device is actively produced and widely stocked, with 1832 units available in inventory. Substitute parts are identified when equivalent electrical and mechanical specifications allow direct replacement in circuit applications.

Substiute Parts

FN5000109

Diodes IncorporatedIn Stock: 1900FN5000109 Datasheet

Current PartRFQ

FN5000110

Diodes IncorporatedIn Stock: 1754FN5000110 Datasheet

MFR RecommendedRFQ

CWX813-050.0M

Connor WinfieldIn Stock: 1131CWX813-050.0M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FN5000109 are qualified based on the following critical parameters:

• Frequency: 50 MHz (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 7.00mm x 5.00mm footprint (exact match required)
• Function: Enable/Disable capability (exact match required)
• RoHS Compliance: ROHS3 Compliant (required for regulatory compatibility)

The FN5000110 qualifies as a manufacturer-recommended substitute despite output type variation (CMOS vs. LVCMOS) due to electrical compatibility at the 3.3V supply level and identical package specifications. The CWX813-050.0M from Connor Winfield qualifies as a direct substitute with matching LVCMOS output, identical frequency, voltage, and package specifications.

Parameter Comparison

Engineering Selection Recommendations

FN5000110 (Manufacturer-Recommended Substitute): This Diodes Incorporated part maintains identical package, frequency, and voltage specifications. The output type differs (CMOS vs. LVCMOS), but both are compatible at 3.3V supply levels. The FN5000110 offers extended operating temperature range (-40°C ~ 85°C) compared to the FN5000109 (-20°C ~ 70°C), making it suitable for applications requiring broader thermal performance. Frequency stability is ±50ppm versus ±25ppm on the primary part. Both parts are ROHS3 compliant and REACH unaffected. Selection depends on application temperature requirements and acceptable frequency stability tolerance.

CWX813-050.0M (Direct Substitute): This Connor Winfield oscillator provides identical LVCMOS output, frequency, voltage, and package specifications to the FN5000109. Frequency stability matches at ±25ppm. The CWX813-050.0M features a lower seated height (1.30mm vs. 1.80mm), which may provide advantages in space-constrained designs. All regulatory certifications (ROHS3, REACH unaffected) align with the primary part. This substitute is suitable for applications requiring exact output type matching and identical thermal operating range.

Frequently Asked Questions (FAQ)

Q: Can FN5000110 replace FN5000109 in all applications? A: The FN5000110 is electrically compatible at 3.3V supply, but the output type differs (CMOS vs. LVCMOS). Verify that your circuit design accepts CMOS output levels. The extended temperature range (-40°C ~ 85°C) and relaxed frequency stability (±50ppm) must be evaluated against application requirements.

Q: What is the difference between LVCMOS and CMOS output at 3.3V? A: Both output types are compatible at 3.3V supply voltage. LVCMOS (Low Voltage CMOS) is optimized for lower voltage operation, while CMOS is a broader classification. At 3.3V, both provide compatible logic levels for standard digital circuits.

Q: Is CWX813-050.0M a direct pin-for-pin replacement? A: Yes. The CWX813-050.0M matches the FN5000109 in package type (4-SMD, No Lead), footprint (7.00mm x 5.00mm), frequency (50 MHz), supply voltage (3.3V), output type (LVCMOS), and function (Enable/Disable). The lower seated height (1.30mm vs. 1.80mm) does not affect electrical compatibility.

Q: Why does FN5000110 have higher disable current (100µA vs. 10µA)? A: The FN5000110 specification shows 100µA maximum disable current compared to 10µA for the FN5000109. This parameter difference should be evaluated if power consumption during disable mode is critical to your application.

Q: Are all three parts ROHS3 compliant? A: Yes. FN5000109, FN5000110, and CWX813-050.0M are all ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What packaging options are available? A: FN5000109 and CWX813-050.0M are supplied in Tape & Reel (TR) packaging. FN5000110 is available in Bulk packaging. Select based on your procurement and assembly requirements.