FD3680001 Equivalent & Substitute Parts

Part Overview

The FD3680001 is a 36.864 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 precise frequency generation in a compact 4-SMD, No Lead package. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same frequency, output type, and package configuration.

Substiute Parts

FD3680001

Diodes IncorporatedIn Stock: 980FD3680001 Datasheet

Current PartRFQ

FD3680003

Diodes IncorporatedIn Stock: 1185FD3680003 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FD3680001 is based on strict equivalence of the following critical parameters:

• Frequency: 36.864 MHz (exact match required)
• Output Type: CMOS (electrical interface compatibility)
• Supply Voltage: 3.3V (power supply compatibility)
• Function: Enable/Disable (operational feature match)
• Package / Case: 4-SMD, No Lead (mechanical and PCB footprint compatibility)
• Size / Dimension: 0.197" L x 0.126" W (5.00mm x 3.20mm) (board layout compatibility)
• Frequency Stability: ±50ppm (timing accuracy specification)

The FD3680003 qualifies as a manufacturer-recommended substitute because it maintains all critical electrical and mechanical parameters while offering extended operating temperature range and alternative packaging option (Bulk vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

Both FD3680001 and FD3680003 are Active status products from Diodes Incorporated with identical ROHS3 compliance and REACH status. Selection between these parts should be based on application operating temperature requirements. The FD3680001 operates within -20°C to 70°C, while the FD3680003 extends this range to -40°C to 85°C. For applications requiring operation beyond the FD3680001 temperature envelope, the FD3680003 provides equivalent electrical performance with expanded thermal capability. Both parts maintain identical frequency stability, current consumption, and package footprint specifications, ensuring direct substitution at the PCB level.

Frequently Asked Questions (FAQ)

Q: Can FD3680003 replace FD3680001 in all applications? A: Yes, for applications operating within -20°C to 70°C. The FD3680003 maintains all critical electrical and mechanical parameters. For applications requiring extended temperature operation beyond 70°C, the FD3680003 is the appropriate selection.

Q: Are the package footprints identical between FD3680001 and FD3680003? A: Yes. Both parts use 4-SMD, No Lead package with identical dimensions of 0.197" L x 0.126" W (5.00mm x 3.20mm) and maximum seated height of 0.051" (1.30mm). PCB layout and reflow profiles remain unchanged.

Q: What is the difference between the two part numbers? A: The primary difference is operating temperature range. FD3680001 operates -20°C to 70°C, while FD3680003 operates -40°C to 85°C. Packaging format differs (standard vs. Bulk), but electrical specifications and physical dimensions are identical.

Q: Are both parts ROHS3 compliant? A: Yes. Both FD3680001 and FD3680003 are ROHS3 compliant with MSL rating of 1 (Unlimited) and REACH Unaffected status.

Q: What frequency stability should be expected from either part? A: Both parts maintain ±50ppm frequency stability across their respective operating temperature ranges.