FK0180004 XTAL OSC XO 1.8430MHZ CMOS SMD Equivalent & Substitute Parts

Part Overview

The FK0180004 is a 1.843 MHz XO (Standard) CMOS Oscillator manufactured by Diodes Incorporated as part of the SaRonix-eCera™ FK series. This surface mount crystal oscillator operates at 3.3V with Enable/Disable functionality and delivers CMOS-level output. The device is currently in active production status with 838 units in stock. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across the product line.

Substiute Parts

FK0180004

Diodes IncorporatedIn Stock: 926FK0180004 Datasheet

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FK0180005

Diodes IncorporatedIn Stock: 941FK0180005 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The FK0180005 qualifies as a direct substitute for the FK0180004 based on the following critical parameters:

Electrical Equivalence: Both parts operate at identical frequency (1.843 MHz), output type (CMOS), supply voltage (3.3V), and functional capability (Enable/Disable). Maximum supply current and disable current specifications are identical.

Mechanical Compatibility: Both parts share the same package type (4-SMD, No Lead) and physical dimensions (3.20mm x 2.50mm x 1.15mm max height), ensuring PCB layout and assembly compatibility.

Environmental & Compliance: Both parts maintain identical operating temperature range (-20°C ~ 70°C), RoHS3 compliance, MSL rating (1), REACH status, and ECCN classification.

Differentiation: The FK0180005 provides improved frequency stability (±25ppm versus ±50ppm), representing a performance upgrade while maintaining full backward compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both FK0180004 and FK0180005 are active production parts from Diodes Incorporated with full ROHS3 compliance and REACH unaffected status. Selection between these parts depends on application frequency stability requirements. The FK0180004 meets applications requiring ±50ppm stability, while the FK0180005 is suitable for applications demanding tighter ±25ppm stability. Both parts maintain identical electrical interfaces, thermal characteristics, and compliance certifications, enabling direct substitution without circuit redesign. Inventory availability should be evaluated based on procurement lead times and project schedules.

Frequently Asked Questions (FAQ)

Q: Can FK0180005 replace FK0180004 in existing designs? A: Yes. The FK0180005 is a direct mechanical and electrical substitute. Identical package dimensions, pinout, supply voltage, output type, and operating temperature range ensure compatibility without PCB modifications.

Q: What is the primary difference between these parts? A: Frequency stability specification differs. FK0180004 provides ±50ppm stability, while FK0180005 provides ±25ppm stability. All other electrical and mechanical parameters are identical.

Q: Are there any compliance or certification differences? A: No. Both parts maintain identical RoHS3 compliance, MSL rating (1), REACH status, and ECCN classification.

Q: Does the improved stability of FK0180005 affect power consumption? A: No. Maximum supply current (10mA) and disable current (10µA) specifications are identical between both parts.

Q: Are these parts available in different packaging options? A: Both parts use 4-SMD, No Lead surface mount packaging with identical physical dimensions (3.20mm x 2.50mm x 1.15mm max height). Packaging format differs only in inventory handling (FK0180004 standard packaging versus FK0180005 bulk packaging).