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

Part Overview

The SIT8225AI-2F-18E-25.000000T is a 25 MHz XO (Standard) LVCMOS/LVTTL oscillator manufactured by SiTime, featuring 1.8V supply with Enable/Disable functionality in a 4-SMD, No Lead package. This part is classified as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and design updates. The SiT8208 series provides direct functional equivalents with Active product status.

Key Parameters

Parameter	Value
Manufacturer Part Number	SIT8225AI-2F-18E-25.000000T
Manufacturer	SiTime
Series	SiT8225
Frequency	25 MHz
Output Type	LVCMOS, LVTTL
Supply Voltage	1.8V
Frequency Stability	±10ppm
Operating Temperature Range	-40°C to 85°C
Package Type	4-SMD, No Lead
Package Dimensions	3.20mm x 2.50mm x 0.80mm (Max Height)
Current Supply (Max)	31mA
Current Supply (Disable)	30mA
Base Resonator	MEMS
Function	Enable/Disable
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Not For New Designs

Substitute Part Grouping Explanation

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

Frequency: 25 MHz
Output Configuration: LVCMOS, LVTTL
Supply Voltage: 1.8V
Frequency Stability: ±10ppm
Operating Temperature Range: -40°C to 85°C
Package Type: 4-SMD, No Lead
Package Dimensions: 3.20mm x 2.50mm
Enable/Disable Function: Present
Current Supply Specifications: 31mA (Max), 30mA (Disable)
Base Resonator Technology: MEMS

The SiT8208 series (SIT8208AI-2F-18E-25.000000T, SIT8208AI-2F-18E-25.000000X, SIT8208AI-2F-18E-25.000000Y) meets all electrical and mechanical parameters. The primary distinction is product status: SiT8208 variants are Active, whereas SIT8225AI-2F-18E-25.000000T is Not For New Designs. Packaging suffix variations (T, X, Y) indicate different tape and reel configurations and do not affect electrical performance or pin compatibility.

Parameter Comparison

Parameter	SIT8225AI-2F-18E-25.000000T	SIT8208AI-2F-18E-25.000000T	SIT8208AI-2F-18E-25.000000X	SIT8208AI-2F-18E-25.000000Y
Frequency	25 MHz	25 MHz	25 MHz	25 MHz
Output Type	LVCMOS, LVTTL	LVCMOS, LVTTL	LVCMOS, LVTTL	LVCMOS, LVTTL
Supply Voltage	1.8V	1.8V	1.8V	1.8V
Frequency Stability	±10ppm	±10ppm	±10ppm	±10ppm
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Package Type	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Package Dimensions	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm
Height (Max)	0.80mm	0.80mm	0.80mm	0.80mm
Current Supply (Max)	31mA	31mA	31mA	31mA
Current Supply (Disable)	30mA	30mA	30mA	30mA
Enable/Disable Function	Yes	Yes	Yes	Yes
Base Resonator	MEMS	MEMS	MEMS	MEMS
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Not For New Designs	Active	Active	Active

Engineering Selection Recommendations

For applications currently using SIT8225AI-2F-18E-25.000000T, transition to SiT8208 series alternatives is supported by:

Identical electrical specifications across all critical parameters
Identical mechanical package footprint and dimensions
Active product status of SiT8208 variants ensures long-term availability and manufacturing support
ROHS3 compliance and MSL 1 rating maintained across all variants
All substitute parts carry equivalent regulatory certifications (REACH Unaffected, EAR99 classification)

Selection among SIT8208AI-2F-18E-25.000000T, SIT8208AI-2F-18E-25.000000X, and SIT8208AI-2F-18E-25.000000Y is determined by tape and reel packaging requirements for procurement and assembly processes. Electrical and functional performance is identical across all three variants.

Frequently Asked Questions (FAQ)

Q: Can SIT8208AI-2F-18E-25.000000T directly replace SIT8225AI-2F-18E-25.000000T in existing designs?

A: Yes. Both parts share identical pin configuration, package footprint (3.20mm x 2.50mm, 4-SMD No Lead), electrical specifications (25 MHz, 1.8V, ±10ppm, -40°C to 85°C), and functional characteristics (LVCMOS/LVTTL output, Enable/Disable control). No circuit modifications are required.

Q: What is the difference between SIT8208AI-2F-18E-25.000000T, SIT8208AI-2F-18E-25.000000X, and SIT8208AI-2F-18E-25.000000Y?

A: The suffix letters (T, X, Y) designate different tape and reel packaging configurations used during component procurement and automated assembly. Electrical performance and pin compatibility are identical. Selection depends on your assembly equipment and procurement specifications.

Q: Why is SIT8225AI-2F-18E-25.000000T marked as Not For New Designs?

A: This designation indicates the part has been superseded by newer product lines. SiTime recommends SiT8208 series for new designs. Existing inventory remains available for legacy system support.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. SIT8225AI-2F-18E-25.000000T and all SiT8208 variants (SIT8208AI-2F-18E-25.000000T, SIT8208AI-2F-18E-25.000000X, SIT8208AI-2F-18E-25.000000Y) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I mix different packaging variants (T, X, Y) in the same production run?

A: Yes, provided your assembly process accommodates the specific tape and reel format of each variant. All three variants are electrically and functionally identical, allowing interchangeability at the circuit level.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message