FN2500187 Equivalent & Substitute Parts

Part Overview

The FN2500187 is a 25 MHz XO (Standard) CMOS oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FN 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 part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching core electrical specifications and mechanical compatibility within the same package class.

Substiute Parts

FN2500187

Diodes IncorporatedIn Stock: 1169FN2500187 Datasheet

Current PartRFQ

FN2500161

Diodes IncorporatedIn Stock: 1093FN2500161 Datasheet

MFR RecommendedRFQ

FN2500171

Diodes IncorporatedIn Stock: 924FN2500171 Datasheet

MFR RecommendedRFQ

FNETHE025

Diodes IncorporatedIn Stock: 10061FNETHE025 Datasheet

MFR RecommendedRFQ

SXO75C3C271-25.000M

Suntsu Electronics, Inc.In Stock: 11826SXO75C3C271-25.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FN2500187 are qualified based on the following critical parameters:

• Frequency: 25 MHz (exact match required)
• Output Type: CMOS (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Size / Dimension: 0.276" L x 0.197" W (7.00mm x 5.00mm) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• RoHS Status: ROHS3 Compliant (compliance requirement)

Substitutes are grouped into two categories: Diodes Incorporated direct equivalents (same manufacturer, same series or compatible series) and cross-manufacturer alternatives (Suntsu Electronics) that meet all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are Active status components with ROHS3 compliance and MSL 1 rating, meeting regulatory and environmental requirements equivalent to the FN2500187.

Diodes Incorporated Direct Equivalents (FN2500161, FN2500171, FNETHE025): These parts maintain manufacturer continuity within the SaRonix-eCera™ series. FN2500171 matches the FN2500187 in frequency stability (±25ppm) and operating temperature range (-20°C ~ 70°C), providing direct functional equivalence. FN2500161 operates across an extended temperature range (-40°C ~ 85°C) with relaxed frequency stability (±50ppm), suitable for applications with broader environmental requirements. FNETHE025 is packaged in Tape & Reel format with identical electrical specifications to FN2500187, differing only in packaging configuration and seated height (0.061" vs 0.071").

Cross-Manufacturer Alternative (SXO75C3C271-25.000M): The Suntsu Electronics SXO75C series part meets all core electrical and mechanical specifications with ±25ppm frequency stability and -20°C ~ 70°C operating range. Maximum supply current is 16mA (1mA higher than FN2500187). This part is suitable for applications where cross-manufacturer sourcing is acceptable and provides high inventory availability.

Frequently Asked Questions (FAQ)

Q: Can FN2500161 replace FN2500187 in all applications?

A: FN2500161 is electrically compatible but operates with ±50ppm frequency stability versus the FN2500187's ±25ppm. Applications requiring tighter frequency tolerance must use FN2500171 or FNETHE025 instead.

Q: What is the difference between FN2500187 and FNETHE025?

A: Both parts are Diodes Incorporated 25 MHz CMOS oscillators with identical electrical specifications (±25ppm stability, -20°C ~ 70°C operating range). The primary difference is packaging: FN2500187 is supplied in Bulk, while FNETHE025 is supplied in Tape & Reel (TR). FNETHE025 has a lower seated height (0.061" vs 0.071"), which may affect PCB clearance in space-constrained designs.

Q: Is the Suntsu SXO75C3C271-25.000M a direct replacement?

A: Yes, the SXO75C3C271-25.000M meets all critical electrical and mechanical specifications: 25 MHz frequency, CMOS output, 3.3V supply, enable/disable function, ±25ppm stability, and 4-SMD package. Maximum supply current is 16mA (1mA higher). This part is suitable for cross-manufacturer applications where Suntsu qualification is acceptable.

Q: Does operating temperature range affect substitution?

A: Operating temperature range is a design constraint. FN2500187 and FNETHE025 operate from -20°C ~ 70°C. FN2500161 and FN2500171 extend to -40°C ~ 85°C. Select based on application thermal requirements; extended range parts are suitable for all FN2500187 applications but may not be necessary for limited temperature environments.

Q: What packaging considerations apply to these substitutes?

A: All parts use identical 4-SMD, No Lead packages with 7.00mm x 5.00mm footprints. Height differences are minor: FN2500187 (1.80mm), FN2500171 (1.80mm), FN2500161 (1.80mm), FNETHE025 (1.55mm), and SXO75C3C271-25.000M (1.60mm). Verify PCB clearance for FNETHE025 if space is constrained.