FN2500175 Equivalent & Substitute Parts

Part Overview

The FN2500175 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 2.5V with enable/disable functionality and is housed in a 4-SMD, No Lead package. The device is Active status and ROHS3 compliant, making it suitable for applications requiring stable frequency generation with low power consumption in disabled mode.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Substiute Parts

FN2500175

Diodes IncorporatedIn Stock: 1062FN2500175 Datasheet

Current PartRFQ

FN2500155

Diodes IncorporatedIn Stock: 855FN2500155 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The FN2500155 is identified as a manufacturer-recommended substitute for the FN2500175. Substitution is valid based on the following matching parameters:

• Frequency: 25 MHz (identical)
• Output Type: CMOS (identical)
• Supply Voltage: 2.5V (identical)
• Function: Enable/Disable (identical)
• Frequency Stability: ±25ppm (identical)
• Package / Case: 4-SMD, No Lead (identical)
• Mounting Type: Surface Mount (identical)
• Current - Supply (Max): 15mA (identical)
• Current - Supply (Disable) (Max): 10µA (identical)
• RoHS Status: ROHS3 Compliant (identical)

The primary difference is the operating temperature range. The FN2500155 operates from -20°C to 70°C, compared to the FN2500175 range of -40°C to 85°C. This difference defines the substitution boundary: the FN2500155 is suitable only for applications within the narrower temperature window.

Parameter Comparison

Engineering Selection Recommendations

Both the FN2500175 and FN2500155 are Active status products from Diodes Incorporated with identical ROHS3 compliance and REACH unaffected status. Selection between these parts is determined by application temperature requirements:

Use FN2500175 for applications requiring the full extended temperature range of -40°C to 85°C, including industrial and automotive environments with extreme temperature exposure.

Use FN2500155 for applications operating within the -20°C to 70°C range, including commercial and consumer electronics with standard temperature specifications.

Both devices maintain identical electrical performance, frequency stability, and physical package dimensions, ensuring direct substitution within their respective temperature operating windows.

Frequently Asked Questions (FAQ)

Q: Can FN2500155 replace FN2500175 in all applications?

A: No. The FN2500155 is suitable only for applications operating within -20°C to 70°C. Applications requiring operation below -20°C or above 70°C must use the FN2500175.

Q: Are the physical packages identical?

A: Yes. Both parts use the 4-SMD, No Lead package with identical dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) and maximum seated height of 0.071" (1.80mm). PCB layout and footprints are interchangeable.

Q: Do the parts have identical electrical specifications?

A: Yes, within their respective operating temperature ranges. Both provide 25 MHz CMOS output at 2.5V with ±25ppm frequency stability, 15mA maximum supply current, and 10µA maximum disable current.

Q: What is the significance of the operating temperature difference?

A: The FN2500175 supports extended low-temperature operation to -40°C and extended high-temperature operation to 85°C. The FN2500155 is rated for standard commercial temperature range -20°C to 70°C. This difference reflects the thermal design and qualification testing of each variant.

Q: Are both parts ROHS3 compliant?

A: Yes. Both FN2500175 and FN2500155 are ROHS3 compliant with MSL rating of 1 (Unlimited) and REACH unaffected status.