FD5000034 Equivalent & Substitute Parts

Part Overview

The FD5000034 is a 50 MHz crystal oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FD series. This CMOS oscillator operates at 3.3V with Enable/Disable functionality in a 4-SMD, No Lead surface mount package. The device is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the primary part experiences supply constraints, discontinuation, or when design requirements allow for alternative manufacturers meeting equivalent electrical and mechanical specifications.

Key Parameters

Parameter	Value
Frequency	50.0000 MHz
Output Type	CMOS
Supply Voltage	3.3V
Function	Enable/Disable
Package Type	4-SMD, No Lead
Mounting Type	Surface Mount
Operating Temperature Range	-40°C ~ 85°C
Frequency Stability	±50ppm
Supply Current (Max)	25mA
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the FD5000034 is determined by the following critical parameters:

Primary Matching Criteria:

Frequency: 50.0000 MHz (exact match required)
Output: CMOS
Supply Voltage: 3.3V
Function: Enable/Disable
Package: 4-SMD, No Lead
Mounting: Surface Mount

Secondary Compatibility Parameters:

Operating Temperature Range: -40°C ~ 85°C (minimum requirement)
Frequency Stability: ±50ppm or better
Supply Current: 25mA or lower
RoHS Compliance: ROHS3 Compliant

Three substitute parts meet these criteria across different manufacturers, each maintaining electrical equivalence while offering alternative sourcing options.

Parameter Comparison

Parameter	FD5000034 (Diodes)	FD5000033 (Diodes)	LFSPXO024589BULK (IQD)	SXO53C3A481-50.000M (Suntsu)
Manufacturer	Diodes Incorporated	Diodes Incorporated	IQD Frequency Products	Suntsu Electronics, Inc.
Frequency	50 MHz	50 MHz	50 MHz	50 MHz
Output Type	CMOS	CMOS	CMOS	CMOS
Supply Voltage	3.3V	3.3V	3.3V	3.3V
Function	Enable/Disable	Enable/Disable	Enable/Disable	Enable/Disable
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension	5.00mm x 3.20mm	5.00mm x 3.20mm	5.20mm x 3.40mm	5.00mm x 3.20mm
Height - Seated (Max)	1.30mm	1.30mm	1.30mm	1.40mm
Operating Temperature	-40°C ~ 85°C	-20°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C
Frequency Stability	±50ppm	±25ppm	±50ppm	±50ppm
Supply Current (Max)	25mA	25mA	30mA	25mA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Discontinued at DiGi Electronics	Active

Engineering Selection Recommendations

FD5000033 (Diodes Incorporated) - MFR Recommended Substitute

This part is the manufacturer-recommended alternative from Diodes Incorporated. It maintains identical package dimensions, supply current, and mounting specifications. The operating temperature range is narrower (-20°C ~ 70°C versus -40°C ~ 85°C), and frequency stability is improved at ±25ppm. Selection of FD5000033 is appropriate when the narrower temperature range satisfies application requirements and improved frequency stability is beneficial.

LFSPXO024589BULK (IQD Frequency Products) - Direct Manufacturer Alternative

This IQD part provides electrical equivalence with matching frequency, output type, supply voltage, and function. Operating temperature range and frequency stability match the FD5000034 specification. Physical dimensions are slightly larger (5.20mm x 3.40mm versus 5.00mm x 3.20mm), and maximum supply current is 30mA versus 25mA. This part is discontinued at DiGi Electronics, limiting availability for new designs.

SXO53C3A481-50.000M (Suntsu Electronics, Inc.) - Direct Manufacturer Alternative

This Suntsu part meets all primary electrical specifications with 50 MHz frequency, CMOS output, 3.3V supply, and Enable/Disable function. Package footprint matches the FD5000034 at 5.00mm x 3.20mm. Seated height is 1.40mm versus 1.30mm maximum. All parts maintain ROHS3 compliance and equivalent regulatory status.

Frequently Asked Questions (FAQ)

Q: Can FD5000033 be used as a direct replacement for FD5000034?

A: FD5000033 is electrically compatible for applications operating within -20°C ~ 70°C. The narrower operating temperature range is the primary design consideration. Frequency stability is improved at ±25ppm. Verify application temperature requirements before substitution.

Q: What are the physical compatibility considerations for LFSPXO024589BULK?

A: LFSPXO024589BULK has slightly larger footprint dimensions (5.20mm x 3.40mm versus 5.00mm x 3.20mm) and maximum supply current of 30mA versus 25mA. PCB layout and power delivery must accommodate these differences. This part is discontinued at DiGi Electronics, affecting long-term availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. FD5000034, FD5000033, LFSPXO024589BULK, and SXO53C3A481-50.000M are all ROHS3 compliant with REACH Unaffected status.

Q: What is the primary difference between FD5000034 and SXO53C3A481-50.000M?

A: Both parts are electrically equivalent at 50 MHz CMOS output with 3.3V supply and Enable/Disable function. The SXO53C3A481-50.000M has maximum seated height of 1.40mm versus 1.30mm. Footprint dimensions are identical at 5.00mm x 3.20mm.

Q: Which substitute offers the best frequency stability?

A: FD5000033 provides ±25ppm frequency stability, superior to the ±50ppm specification of FD5000034, LFSPXO024589BULK, and SXO53C3A481-50.000M. Selection depends on application frequency accuracy requirements.

Q: Can these parts be used interchangeably in production?

A: Substitution requires verification of operating temperature range, frequency stability tolerance, supply current budget, and physical clearance for seated height and footprint dimensions. All parts maintain identical package type (4-SMD, No Lead) and mounting method (Surface Mount).

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