SIT8225AI-2F-18E-25.000000X Equivalent & Substitute Parts

Part Overview

The SIT8225AI-2F-18E-25.000000X is a 25 MHz MEMS-based XO (Standard) oscillator manufactured by SiTime, designed for applications requiring 1.8V supply with Enable/Disable functionality. The device outputs LVCMOS and LVTTL logic levels and operates across the -40°C to 85°C temperature range. This part carries a "Not For New Designs" product status, making identification of active equivalent alternatives essential for ongoing production and new design initiatives.

Substiute Parts

SIT8225AI-2F-18E-25.000000X

SiTimeIn Stock: 1037SIT8225AI-2F-18E-25.000000X Datasheet

Current PartRFQ

SIT8208AI-2F-18E-25.000000X

SiTimeIn Stock: 812SIT8208AI-2F-18E-25.000000X Datasheet

SimilarRFQ

SIT8208AI-2F-18E-25.000000T

SiTimeIn Stock: 788SIT8208AI-2F-18E-25.000000T Datasheet

Parametric EquivalentRFQ

SIT8208AI-2F-18E-25.000000Y

SiTimeIn Stock: 1118SIT8208AI-2F-18E-25.000000Y Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SIT8225AI-2F-18E-25.000000X is determined by strict equivalence across the following critical parameters:

• Frequency: 25 MHz
• Output Type: LVCMOS, LVTTL
• Voltage - Supply: 1.8V
• Frequency Stability: ±10ppm
• Operating Temperature: -40°C ~ 85°C
• Current - Supply (Max): 31mA
• Current - Supply (Disable) (Max): 30mA
• Function: Enable/Disable
• Package / Case: 4-SMD, No Lead
• Size / Dimension: 0.126" L x 0.098" W (3.20mm x 2.50mm)
• Height - Seated (Max): 0.031" (0.80mm)
• Mounting Type: Surface Mount
• Base Resonator: MEMS
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

All substitute parts listed below meet these electrical and mechanical specifications. The primary distinction between the main part and substitutes is product status and packaging variant designation.

Parameter Comparison

Engineering Selection Recommendations

The SIT8225AI-2F-18E-25.000000X carries a "Not For New Designs" product status. For new design initiatives and ongoing production requiring 25 MHz MEMS oscillators with 1.8V supply, Enable/Disable functionality, and LVCMOS/LVTTL output, the SiT8208 series alternatives are recommended. All three substitute parts—SIT8208AI-2F-18E-25.000000X, SIT8208AI-2F-18E-25.000000T, and SIT8208AI-2F-18E-25.000000Y—maintain Active product status and provide identical electrical and mechanical specifications.

All substitute parts are ROHS3 Compliant and REACH Unaffected, meeting regulatory requirements equivalent to the original part. Selection among the three SiT8208 variants should be based on packaging availability and inventory requirements, as electrical performance and physical dimensions are identical.

Frequently Asked Questions (FAQ)

Q: Can SIT8208AI-2F-18E-25.000000X, SIT8208AI-2F-18E-25.000000T, and SIT8208AI-2F-18E-25.000000Y be used interchangeably with SIT8225AI-2F-18E-25.000000X?

A: Yes. All three SiT8208 variants are parametric equivalents meeting identical electrical specifications (25 MHz frequency, ±10ppm stability, 1.8V supply, 31mA maximum supply current, Enable/Disable function, LVCMOS/LVTTL output) and mechanical specifications (4-SMD No Lead package, 3.20mm x 2.50mm footprint, 0.80mm maximum height). The differences are limited to packaging variant designations and product status.

Q: What is the difference between the packaging variants (X, T, Y) in the SiT8208 series?

A: The designations X, T, and Y represent different packaging variants within the SiT8208 series. All variants are supplied in Tape & Reel (TR) format and maintain identical electrical and mechanical specifications. Selection should be based on supply chain availability and inventory requirements.

Q: Why is the SIT8225AI-2F-18E-25.000000X marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that SiTime has transitioned this product line. The SiT8208 series represents the active equivalent platform. For new designs and ongoing production, SiT8208 variants are the recommended selection.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All substitute parts are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the original SIT8225AI-2F-18E-25.000000X.

Q: What is the Moisture Sensitivity Level (MSL) for these oscillators?

A: All parts, including the original and substitutes, carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.