FD4800048 Equivalent & Substitute Parts

Part Overview

The FD4800048 is a 48 MHz XO (Standard) CMOS oscillator manufactured by Diodes Incorporated, designed for applications requiring a stable crystal oscillator with enable/disable functionality. This Surface Mount Device (SMD) operates at 3.3V supply voltage with ±50ppm frequency stability across an operating temperature range of -40°C to 85°C. The part is Active status and ROHS3 compliant, making it suitable for modern electronic applications. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

FD4800048

Diodes IncorporatedIn Stock: 1076FD4800048 Datasheet

Current PartRFQ

FD4800047

Diodes IncorporatedIn Stock: 1159FD4800047 Datasheet

MFR RecommendedRFQ

SXO53C3A481-48.000M

Suntsu Electronics, Inc.In Stock: 2736SXO53C3A481-48.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FD4800048 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Core Compatibility Criteria:

• Frequency: 48 MHz (exact match required)
• Output Type: CMOS (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Size / Dimension: 0.197" L x 0.126" W (5.00mm x 3.20mm) (exact match required)
• Mounting Type: Surface Mount (exact match required)

Allowable Parameter Variations:

• Frequency Stability: ±50ppm or tighter (±25ppm acceptable)
• Operating Temperature Range: -40°C ~ 85°C or wider range acceptable
• Current - Supply (Max): 15mA or higher acceptable
• Height - Seated (Max): 0.051" (1.30mm) or lower acceptable

Parameter Comparison

Engineering Selection Recommendations

FD4800047 (Diodes Incorporated): This part is a direct manufacturer equivalent from Diodes Incorporated with improved frequency stability (±25ppm versus ±50ppm). The operating temperature range is narrower (-20°C ~ 70°C), which may limit use in applications requiring the full -40°C ~ 85°C range. Selection of FD4800047 is appropriate for applications operating within the -20°C ~ 70°C window where tighter frequency tolerance is beneficial. Both parts share identical electrical specifications for supply voltage, current consumption, and package dimensions. ROHS3 compliance and Active product status are maintained.

SXO53C3A481-48.000M (Suntsu Electronics, Inc.): This cross-manufacturer substitute from Suntsu Electronics maintains all critical electrical parameters and the full operating temperature range (-40°C ~ 85°C). Maximum supply current is higher at 25mA compared to 15mA for the Diodes parts, which may impact power budget calculations in current-limited applications. Physical height is slightly greater (0.055" versus 0.051"), which requires verification against PCB clearance constraints. ROHS3 compliance and Active product status are maintained. This part is suitable for applications requiring the extended temperature range and can tolerate the increased current specification.

Frequently Asked Questions (FAQ)

Q: Can FD4800047 be used as a direct replacement for FD4800048? A: FD4800047 is electrically compatible within the overlapping operating temperature range of -20°C ~ 70°C. If your application operates within this temperature window, FD4800047 provides superior frequency stability (±25ppm). For applications requiring operation below -20°C or above 70°C, FD4800048 is required.

Q: What are the key differences between the Diodes and Suntsu oscillators? A: Both manufacturers provide 48 MHz CMOS oscillators in identical 4-SMD packages with matching electrical specifications. The Suntsu SXO53C3A481-48.000M has higher maximum supply current (25mA) and slightly greater physical height (0.055" versus 0.051"). Frequency stability is identical at ±50ppm for both the FD4800048 and SXO53C3A481-48.000M.

Q: Are there any PCB layout considerations when substituting with SXO53C3A481-48.000M? A: The Suntsu part has a maximum seated height of 0.055" compared to 0.051" for Diodes parts. Verify that PCB clearance above the component accommodates the additional 0.004" height to prevent interference with overlying components or enclosure constraints.

Q: Which substitute part should I select for cost optimization? A: Part selection should be based on application requirements rather than cost alone. Verify inventory availability, lead times, and pricing through your supplier. All three parts are Active status with ROHS3 compliance and suitable for modern electronic applications.

Q: Can these oscillators be used interchangeably in high-temperature applications? A: FD4800048 and SXO53C3A481-48.000M both support the full -40°C ~ 85°C operating range. FD4800047 is limited to -20°C ~ 70°C and is not suitable for applications requiring operation above 70°C or below -20°C.