FD1200028 Equivalent & Substitute Parts

Part Overview

The FD1200028 is a 12 MHz crystal oscillator manufactured by Diodes Incorporated, designed for applications requiring a standard XO (Standard) CMOS output with Enable/Disable functionality. This Surface Mount device operates at 3.3V supply voltage and is housed in a compact 4-SMD, No Lead package measuring 5.00mm x 3.20mm. The part is currently Active in product status and maintains ROHS3 compliance with MSL 1 rating, indicating unlimited moisture sensitivity tolerance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter set.

Substiute Parts

FD1200028

Diodes IncorporatedIn Stock: 1262FD1200028 Datasheet

Current PartRFQ

SXO53C3A271-12.000M

Suntsu Electronics, Inc.In Stock: 2893SXO53C3A271-12.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FD1200028 is permissible when the alternative part maintains the following critical parameters: 12 MHz frequency output, CMOS logic level, 3.3V supply voltage operation, Enable/Disable control function, ±50ppm frequency stability, -20°C to 70°C operating temperature range, 4-SMD No Lead package configuration, and 5.00mm x 3.20mm footprint dimensions. The SXO53C3A271-12.000M from Suntsu Electronics, Inc. satisfies all these requirements and qualifies as a direct substitute based on electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the FD1200028 and SXO53C3A271-12.000M are Active products with ROHS3 compliance and EAR99 ECCN classification. Selection between these parts should be based on availability and supply chain requirements. The SXO53C3A271-12.000M demonstrates marginally higher maximum supply current (16mA versus 15mA) and seated height (1.40mm versus 1.30mm), both within acceptable tolerance for standard PCB assembly processes. No electrical performance degradation results from either substitution direction. Both parts carry identical frequency stability and temperature operating specifications required for timing-critical applications.

Frequently Asked Questions (FAQ)

Q: Can the SXO53C3A271-12.000M replace the FD1200028 in existing designs? A: Yes. Both parts share identical frequency, output type, supply voltage, control function, frequency stability, operating temperature range, and package footprint. The 1mA increase in maximum supply current and 0.10mm increase in seated height do not impact standard circuit operation.

Q: Are there any PCB layout considerations when switching between these parts? A: No. Both oscillators use the identical 4-SMD, No Lead package with 5.00mm x 3.20mm footprint. PCB land patterns and assembly processes remain unchanged.

Q: Do both parts meet the same compliance standards? A: Yes. Both the FD1200028 and SXO53C3A271-12.000M are ROHS3 compliant with EAR99 ECCN classification and carry identical regulatory status.

Q: What is the significance of the Enable/Disable function in these oscillators? A: The Enable/Disable function allows the oscillator output to be gated on or off via a control signal, enabling power management in applications where the 12 MHz clock is not continuously required.

Q: Are there differences in moisture sensitivity between these parts? A: The FD1200028 specifies MSL 1 (Unlimited). The SXO53C3A271-12.000M does not provide MSL data in the supplied parameters. Both parts are suitable for standard PCB assembly and storage conditions.