FDC500019 Equivalent & Substitute Parts

Part Overview

The FDC500019 is a 125 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 and is housed in a 4-SMD, No Lead package. The device is actively produced and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, design flexibility, or application-specific performance needs.

Substiute Parts

FDC500019

Diodes IncorporatedIn Stock: 766FDC500019 Datasheet

Current PartRFQ

FDC500020

Diodes IncorporatedIn Stock: 875FDC500020 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FDC500019 is determined by the following critical parameters:

• Frequency: Must be 125 MHz (exact match required)
• Output Type: Must be CMOS
• Supply Voltage: Must be 3.3V
• Function: Must support Enable/Disable
• Package Type: Must be 4-SMD, No Lead
• Physical Dimensions: Must match 5.00mm x 3.20mm x 1.30mm (Max)
• Mounting Type: Must be Surface Mount
• RoHS Compliance: Must be ROHS3 Compliant

The FDC500020 qualifies as a direct substitute based on these core parameters. Variations in frequency stability and operating temperature range do not preclude substitution when the application requirements fall within the substitute's specified limits.

Parameter Comparison

Engineering Selection Recommendations

Both FDC500019 and FDC500020 are active products from Diodes Incorporated with identical ROHS3 compliance and REACH unaffected status. Selection between these parts depends on application-specific requirements:

FDC500019 is suitable for applications requiring tighter frequency stability (±20ppm) within the -20°C to 70°C operating range.

FDC500020 is suitable for applications requiring extended operating temperature range (-40°C to 85°C) where the wider frequency stability tolerance (±50ppm) is acceptable. This part offers broader environmental performance capability.

Both parts are electrically and mechanically interchangeable in 4-SMD surface-mount implementations. Selection should be based on the specific frequency stability and temperature range requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can FDC500020 replace FDC500019 in any application?

A: FDC500020 is mechanically and electrically compatible with FDC500019 in terms of pinout, package footprint, and core functionality. However, the substitute has wider frequency stability tolerance (±50ppm vs. ±20ppm) and extended operating temperature range (-40°C to 85°C vs. -20°C to 70°C). Verify that your application can tolerate these specification differences before substitution.

Q: What are the key differences between these parts?

A: The primary differences are frequency stability and operating temperature range. FDC500019 offers tighter frequency stability, while FDC500020 provides extended temperature operation. All other electrical and mechanical parameters are identical.

Q: Are both parts available in the same packaging?

A: Yes. Both FDC500019 and FDC500020 use identical 4-SMD, No Lead surface-mount packaging with dimensions of 5.00mm x 3.20mm x 1.30mm (Max). They are footprint-compatible and require no PCB layout modifications.

Q: What is the moisture sensitivity level for these oscillators?

A: Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements.

Q: Are these parts RoHS compliant?

A: Yes. Both FDC500019 and FDC500020 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.