FN5000110 Equivalent & Substitute Parts

Part Overview

The FN5000110 is a 50 MHz crystal oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FN series. This CMOS oscillator operates at 3.3V with enable/disable functionality and is housed in a 4-SMD, No Lead package. The device is actively produced and widely stocked, with 1704 units available in bulk packaging. Substitute parts are identified when equivalent frequency, voltage supply, mounting type, and package specifications are required for design flexibility, inventory management, or supply chain optimization.

Key Parameters

Parameter	Value
Frequency	50 MHz
Output Type	CMOS
Voltage Supply	3.3V
Function	Enable/Disable
Frequency Stability	±50ppm
Operating Temperature Range	-40°C ~ 85°C
Current Supply (Max)	25mA
Mounting Type	Surface Mount
Package	4-SMD, No Lead
Size	7.00mm x 5.00mm
Height (Max)	1.80mm
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the FN5000110 are qualified based on the following critical parameters:

Frequency Match: 50 MHz (exact)
Voltage Supply: 3.3V (exact)
Package Type: 4-SMD, No Lead (exact)
Mounting Type: Surface Mount (exact)
Function: Enable/Disable capability (exact)
Physical Dimensions: 7.00mm x 5.00mm footprint (exact)

The FN5000109 qualifies as a manufacturer-recommended substitute despite output type variation (LVCMOS vs. CMOS) and improved frequency stability (±25ppm). The SXO75C3A481-50.000M qualifies as a direct substitute from an alternative manufacturer with identical CMOS output and frequency stability specifications.

Parameter Comparison

Parameter	FN5000110	FN5000109	SXO75C3A481-50.000M
Manufacturer	Diodes Incorporated	Diodes Incorporated	Suntsu Electronics, Inc.
Frequency	50 MHz	50 MHz	50 MHz
Output Type	CMOS	LVCMOS	CMOS
Voltage Supply	3.3V	3.3V	3.3V
Function	Enable/Disable	Enable/Disable	Enable/Disable
Frequency Stability	±50ppm	±25ppm	±50ppm
Operating Temperature	-40°C ~ 85°C	-20°C ~ 70°C	-40°C ~ 85°C
Current Supply (Max)	25mA	25mA	25mA
Current Supply (Disable) (Max)	100µA	10µA	Not specified
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size	7.00mm x 5.00mm	7.00mm x 5.00mm	7.00mm x 5.00mm
Height (Max)	1.80mm	1.80mm	1.60mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
Packaging	Bulk	Tape & Reel (TR)	Bulk

Engineering Selection Recommendations

FN5000109 (Manufacturer-Recommended Substitute)

The FN5000109 is designated as the manufacturer-recommended alternative. Both devices are produced by Diodes Incorporated and share identical mechanical and electrical specifications except for output type (LVCMOS vs. CMOS) and frequency stability. The FN5000109 offers superior frequency stability at ±25ppm and reduced disable-mode current consumption (10µA vs. 100µA). Operating temperature range is narrower (-20°C ~ 70°C vs. -40°C ~ 85°C). Selection of this substitute is appropriate when the narrower temperature range and LVCMOS output are compatible with system requirements.

SXO75C3A481-50.000M (Direct Substitute)

The SXO75C3A481-50.000M from Suntsu Electronics, Inc. provides direct substitution with identical CMOS output, frequency stability (±50ppm), and operating temperature range (-40°C ~ 85°C). Physical dimensions match exactly at 7.00mm x 5.00mm, with a slightly reduced maximum height of 1.60mm. All compliance certifications (ROHS3, EAR99) align with the primary part. This substitute is suitable for applications requiring extended temperature operation and CMOS output compatibility.

Frequently Asked Questions (FAQ)

Q: Can FN5000109 replace FN5000110 in all applications?

A: The FN5000109 is electrically compatible for most applications due to identical frequency, voltage, and package specifications. However, the operating temperature range is restricted to -20°C ~ 70°C compared to -40°C ~ 85°C for the FN5000110. Applications requiring operation below -20°C or above 70°C must use the FN5000110 or SXO75C3A481-50.000M. LVCMOS output is compatible with standard CMOS input receivers.

Q: What is the difference between CMOS and LVCMOS output?

A: Both output types are compatible with 3.3V logic systems. LVCMOS (Low Voltage CMOS) is optimized for lower voltage operation and typically exhibits lower power consumption. The FN5000109 (LVCMOS) demonstrates this with reduced disable-mode current (10µA vs. 100µA).

Q: Are the physical dimensions identical across all three parts?

A: The footprint dimensions are identical at 7.00mm x 5.00mm for all three parts. The SXO75C3A481-50.000M has a maximum seated height of 1.60mm compared to 1.80mm for both Diodes Incorporated parts. This 0.20mm difference is negligible for most PCB assembly applications.

Q: Which substitute should be selected for high-temperature applications?

A: For applications requiring operation above 70°C, select either the FN5000110 or SXO75C3A481-50.000M, both rated to 85°C maximum. The FN5000109 is limited to 70°C and is not suitable for extended high-temperature operation.

Q: Are all three parts RoHS compliant?

A: Yes, all three parts are ROHS3 compliant and carry EAR99 ECCN classification, meeting regulatory requirements for commercial electronics applications.

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