FN2700078 Equivalent & Substitute Parts

Part Overview

The FN2700078 is a 27 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 currently in active production status with 1088 units in stock. Alternative equivalent parts may be required due to supply constraints, design flexibility, or procurement preferences across different manufacturing sources.

Substiute Parts

FN2700078

Diodes IncorporatedIn Stock: 1186FN2700078 Datasheet

Current PartRFQ

SXO75C3A271-27.000M

Suntsu Electronics, Inc.In Stock: 2186SXO75C3A271-27.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The FN2700078 has one identified equivalent substitute: SXO75C3A271-27.000M from Suntsu Electronics, Inc. This substitution is valid based on the following critical parameters that must remain constant:

• Frequency: 27 MHz (exact match required)
• Output Type: CMOS (functional equivalence)
• Supply Voltage: 3.3V (electrical compatibility)
• Enable/Disable Function: Present in both devices
• Frequency Stability: ±50ppm (performance specification match)
• Operating Temperature Range: -20°C ~ 70°C (identical)
• Package Type: 4-SMD, No Lead (mechanical compatibility)
• Physical Dimensions: 7.00mm x 5.00mm (PCB layout compatibility)
• RoHS3 Compliance: Both devices meet this regulatory requirement

Parameter Comparison

Engineering Selection Recommendations

Both the FN2700078 and SXO75C3A271-27.000M are active production devices with ROHS3 compliance and identical core electrical specifications. The SXO75C3A271-27.000M offers a lower seated height (1.60mm vs 1.80mm), which may provide advantages in space-constrained applications. The maximum supply current of the Suntsu device is 1mA higher (16mA vs 15mA), which remains within acceptable design margins for most 3.3V systems. Both devices carry MSL 1 or equivalent moisture sensitivity ratings, indicating minimal handling restrictions. Selection between these parts should be based on availability, procurement lead times, and specific design requirements regarding board height constraints.

Frequently Asked Questions (FAQ)

Q: Can SXO75C3A271-27.000M be used as a direct replacement for FN2700078?

A: Yes. Both devices share identical frequency (27 MHz), output type (CMOS), supply voltage (3.3V), enable/disable functionality, frequency stability (±50ppm), operating temperature range (-20°C ~ 70°C), and package dimensions (7.00mm x 5.00mm, 4-SMD No Lead). The 1mA difference in maximum supply current and 0.2mm difference in seated height do not prevent direct substitution in standard applications.

Q: Are there any physical differences that affect PCB layout?

A: Both parts use identical package dimensions (7.00mm x 5.00mm) and the same 4-SMD, No Lead footprint. The SXO75C3A271-27.000M has a lower maximum seated height (1.60mm vs 1.80mm), which is beneficial for compact designs and does not create compatibility issues.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both FN2700078 and SXO75C3A271-27.000M are ROHS3 compliant and carry EAR99 ECCN classification. Both are classified under HTSUS code 8542.39.0001.

Q: What is the difference in supply current specifications?

A: The FN2700078 specifies a maximum supply current of 15mA, while the SXO75C3A271-27.000M specifies 16mA. This 1mA difference is negligible for most 3.3V power supply designs and does not affect substitution feasibility.

Q: Are moisture sensitivity levels equivalent?

A: The FN2700078 carries MSL 1 (Unlimited), indicating minimal moisture sensitivity. The SXO75C3A271-27.000M does not specify MSL in the provided data but is suitable for standard handling and storage conditions typical of active production components.