FN4800071 Equivalent & Substitute Parts

Part Overview

The FN4800071 is a 48 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 surface mount package. The device is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the critical operating parameters that define this oscillator category.

Substiute Parts

FN4800071

Diodes IncorporatedIn Stock: 658FN4800071 Datasheet

Current PartRFQ

FN4800068

Diodes IncorporatedIn Stock: 2114FN4800068 Datasheet

MFR RecommendedRFQ

SXO75C3C271-48.000M

Suntsu Electronics, Inc.In Stock: 4471SXO75C3C271-48.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FN4800071 is determined by matching the following critical parameters:

• Frequency: 48 MHz (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Physical Dimensions: 7.00mm x 5.00mm (exact match required)
• Function: Enable/Disable (exact match required)
• Operating Temperature Range: -20°C ~ 70°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Substitute parts are grouped into two categories based on output type compatibility:

Category 1 - CMOS Output (Direct Equivalent): Parts maintaining CMOS output specification with identical frequency stability (±25ppm).

Category 2 - LVCMOS Output (Functional Equivalent): Parts with LVCMOS output that maintain all other critical parameters. LVCMOS is a low-voltage variant of CMOS logic and operates within the same 3.3V supply specification.

Parameter Comparison

Engineering Selection Recommendations

FN4800068 (Diodes Incorporated - LVCMOS Output)

This part is manufacturer-recommended and maintains all critical electrical and mechanical parameters. The LVCMOS output is compatible with 3.3V logic systems. The frequency stability specification of ±50ppm is wider than the main part (±25ppm). Selection of this substitute is appropriate when LVCMOS output compatibility is confirmed in the receiving circuit and the relaxed frequency stability tolerance is acceptable for the application.

SXO75C3C271-48.000M (Suntsu Electronics, Inc. - CMOS Output)

This part maintains identical CMOS output specification and frequency stability (±25ppm) as the main part. All critical electrical parameters and package dimensions are equivalent. The maximum seated height is 1.63mm, which is 0.17mm lower than the main part. Selection of this substitute is appropriate when direct CMOS output equivalence is required and the reduced height profile is compatible with PCB assembly constraints.

Both substitute parts maintain ROHS3 compliance and operate within the specified temperature range. Component selection should be based on output type requirements and frequency stability tolerance of the target application.

Frequently Asked Questions (FAQ)

Q: Can FN4800068 replace FN4800071 directly?

A: FN4800068 is electrically compatible as a substitute. Both operate at 48 MHz, 3.3V, with Enable/Disable function in identical 4-SMD, No Lead packages. The primary difference is output type (LVCMOS vs. CMOS) and frequency stability (±50ppm vs. ±25ppm). Substitution is valid when the receiving circuit accepts LVCMOS logic levels and the wider frequency tolerance is acceptable.

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

A: LVCMOS is a low-voltage variant of CMOS logic. Both operate at 3.3V supply voltage in this product category. LVCMOS typically features reduced output swing and lower power consumption. Compatibility depends on the input specifications of the receiving circuit.

Q: Can SXO75C3C271-48.000M replace FN4800071?

A: Yes. SXO75C3C271-48.000M maintains identical frequency (48 MHz), output type (CMOS), supply voltage (3.3V), frequency stability (±25ppm), and package specifications. The seated height is 0.17mm lower (1.63mm vs. 1.80mm), which may be advantageous for compact PCB designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. FN4800071, FN4800068, and SXO75C3C271-48.000M are all ROHS3 compliant.

Q: What is the impact of frequency stability differences?

A: FN4800071 and SXO75C3C271-48.000M specify ±25ppm stability, while FN4800068 specifies ±50ppm. The wider tolerance in FN4800068 may affect timing-critical applications. Selection should be based on the frequency accuracy requirements of the target system.

Q: Are there packaging differences between substitutes?

A: FN4800071 is specified as 4-SMD, No Lead with no packaging detail. FN4800068 is supplied in Tape & Reel (TR) packaging. SXO75C3C271-48.000M is supplied in Bulk packaging. All three use identical 4-SMD, No Lead component packages suitable for surface mount assembly.