SG-310SCF 33.3333MM XTAL OSC XO Equivalent & Substitute Parts

Part Overview

The SG-310SCF 33.3333MM is a 33.3333 MHz XO (Standard) CMOS oscillator manufactured by EPSON, designed for 3.3V supply applications with standby power-down functionality. This part operates across the industrial temperature range of -40°C to 85°C and is packaged in a 4-SMD, No Lead surface mount configuration with dimensions of 3.20mm x 2.50mm.

The SG-310SCF is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this oscillator frequency and electrical specification.

Substiute Parts

SG-310SCF 33.3333MM

EPSONIn Stock: 726SG-310SCF 33.3333MM Datasheet

Current PartRFQ

SG-8018CE 33.3333M-TJHSA0

EPSONIn Stock: 1088SG-8018CE 33.3333M-TJHSA0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SG-8018CE 33.3333M-TJHSA0 qualifies as a direct substitute for the SG-310SCF 33.3333MM based on the following critical parameters:

Matching Parameters:

• Frequency: 33.3333 MHz (identical)
• Output Type: CMOS (identical)
• Package / Case: 4-SMD, No Lead (identical)
• Size / Dimension: 3.20mm x 2.50mm (identical)
• Mounting Type: Surface Mount (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Allowable Variations:

• Voltage - Supply: SG-310SCF operates at fixed 3.3V; SG-8018CE operates across 1.62V ~ 3.63V range. The substitute encompasses the original specification.
• Operating Temperature Range: SG-310SCF operates -40°C ~ 85°C; SG-8018CE operates -40°C ~ 105°C. The substitute provides extended upper temperature capability.
• Frequency Stability: SG-310SCF ±100ppm; SG-8018CE ±50ppm. The substitute provides improved stability.
• Current - Supply (Max): SG-310SCF 4.5mA; SG-8018CE 8.1mA. The substitute has higher maximum supply current.
• Function: SG-310SCF has Standby (Power Down); SG-8018CE has Enable/Disable with Current - Supply (Disable) of 4.6mA.

Parameter Comparison

Engineering Selection Recommendations

The SG-8018CE 33.3333M-TJHSA0 is the appropriate substitute for the obsolete SG-310SCF 33.3333MM. Both parts are manufactured by EPSON and maintain identical physical package dimensions, frequency specification, and CMOS output characteristics. Both parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings.

The SG-8018CE is currently in active production status, ensuring supply chain availability and long-term sourcing capability. The substitute part's wider supply voltage range (1.62V ~ 3.63V) encompasses the original 3.3V specification, and the extended operating temperature range (-40°C ~ 105°C) provides additional thermal margin. The improved frequency stability (±50ppm versus ±100ppm) offers enhanced performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the SG-8018CE 33.3333M-TJHSA0 be used as a direct replacement for the SG-310SCF 33.3333MM?

A: Yes. Both parts share identical frequency (33.3333 MHz), CMOS output, 4-SMD No Lead package, and physical dimensions (3.20mm x 2.50mm). The substitute operates within the original 3.3V specification and maintains equivalent compliance certifications.

Q: What are the key differences between these two oscillators?

A: The primary differences are product status (obsolete versus active), supply voltage range (fixed 3.3V versus 1.62V ~ 3.63V), operating temperature range (-40°C ~ 85°C versus -40°C ~ 105°C), frequency stability (±100ppm versus ±50ppm), and control function (Standby Power Down versus Enable/Disable). The substitute provides improved specifications across multiple parameters.

Q: Are the physical dimensions compatible for PCB layout?

A: Yes. Both parts use identical package dimensions of 3.20mm x 2.50mm. The SG-8018CE has a slightly lower seated height (1.05mm versus 1.20mm), which provides additional clearance margin for PCB assembly.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SG-310SCF and SG-8018CE are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8542.39.0001.

Q: What is the impact of the higher maximum supply current in the substitute part?

A: The SG-8018CE has a maximum supply current of 8.1mA compared to the SG-310SCF's 4.5mA. Design power budgets must account for this increased current draw. However, the SG-8018CE offers a disable mode with 4.6mA supply current, enabling power management strategies not available in the original part.