FD2000048 Equivalent & Substitute Parts

Part Overview

The FD2000048 is a 20 MHz XO (Standard) CMOS oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FD series. This surface mount crystal oscillator operates at 3.3V with enable/disable functionality, designed for applications requiring stable frequency generation in a compact 4-SMD, No Lead package. The part is currently active in production with 1129 units in stock. Substitute parts are necessary to address supply chain continuity, inventory optimization, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

FD2000048

Diodes IncorporatedIn Stock: 1159FD2000048 Datasheet

Current PartRFQ

FD2000046

Diodes IncorporatedIn Stock: 1150FD2000046 Datasheet

MFR RecommendedRFQ

SXO53C3A481-20.000M

Suntsu Electronics, Inc.In Stock: 3828SXO53C3A481-20.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FD2000048 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 20 MHz
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable
• Package / Case: 4-SMD, No Lead
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Operating Temperature Range: Substitutes may have narrower ranges provided they encompass the application's required operating window
• Current - Supply (Max): Substitutes with equal or lower maximum supply current are acceptable
• Height - Seated (Max): Minor dimensional variations within assembly tolerance are permissible
• Frequency Stability: ±50ppm specification must be met or exceeded

The FD2000046 (Diodes Incorporated) and SXO53C3A481-20.000M (Suntsu Electronics) meet all mandatory matching criteria and are classified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

FD2000046 (Diodes Incorporated): This part is manufacturer-recommended and maintains identical electrical specifications to the FD2000048. Both parts are from the same manufacturer and series. The primary distinction is the operating temperature range: FD2000046 operates from -20°C to 70°C, compared to FD2000048's -40°C to 85°C. Selection of FD2000046 is appropriate for applications operating within the -20°C to 70°C window. Both parts carry ROHS3 compliance and MSL 1 rating.

SXO53C3A481-20.000M (Suntsu Electronics, Inc.): This part provides cross-manufacturer substitution with identical electrical performance and the same extended operating temperature range (-40°C to 85°C) as the FD2000048. Maximum supply current is 16mA versus 15mA for the primary part, which is acceptable for applications designed for the FD2000048. Height dimension is 1.40mm compared to 1.30mm, a 0.10mm increase that remains within typical PCB assembly tolerances. ROHS3 compliance is confirmed. This part is suitable for applications requiring supply chain diversification or alternative sourcing.

Frequently Asked Questions (FAQ)

Q: Can FD2000046 be used in all applications where FD2000048 is specified?

A: FD2000046 is suitable for applications operating within its temperature range of -20°C to 70°C. If your application requires operation below -20°C or above 70°C, FD2000046 is not appropriate. Both parts are electrically identical in all other parameters.

Q: What is the significance of the 0.10mm height difference between FD2000048 and SXO53C3A481-20.000M?

A: The SXO53C3A481-20.000M has a maximum seated height of 1.40mm versus 1.30mm for FD2000048. This 0.10mm difference is within standard PCB assembly tolerances and does not affect electrical performance or mechanical fit in standard surface mount applications.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 4-SMD, No Lead package with identical footprint dimensions of 5.00mm x 3.20mm. Pin configuration and electrical interface are identical.

Q: What is the difference in supply current between these parts?

A: FD2000048 and FD2000046 both specify 15mA maximum supply current. SXO53C3A481-20.000M specifies 16mA maximum. This 1mA difference is negligible for most applications and does not affect compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. FD2000048, FD2000046, and SXO53C3A481-20.000M are all ROHS3 compliant.

Q: Can I use SXO53C3A481-20.000M in applications requiring the full -40°C to 85°C temperature range?

A: Yes. SXO53C3A481-20.000M operates across the full -40°C to 85°C temperature range, matching the FD2000048 specification.