SG-310SCF 33.3330MB Equivalent & Substitute Parts

Part Overview

The SG-310SCF 33.3330MB is a 33.333 MHz XO (Standard) CMOS oscillator manufactured by EPSON, designed for 3.3V supply applications with standby power-down functionality. This component operates across the -20°C to 70°C temperature range and delivers a maximum supply current of 4.5mA. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

SG-310SCF 33.3330MB

EPSONIn Stock: 807SG-310SCF 33.3330MB Datasheet

Current PartRFQ

SG-8018CE 33.3333M-TJHSA0

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SG-310SCF 33.3330MB is determined by the following critical parameters:

Frequency Compatibility: The substitute must operate at 33.333 MHz or 33.3333 MHz, maintaining the same functional frequency within the oscillator's stability specification of ±50ppm.

Package and Mechanical Compatibility: The substitute must use the 4-SMD, No Lead package with identical footprint dimensions (0.126" L x 0.098" W / 3.20mm x 2.50mm) to ensure direct PCB placement compatibility.

Output Type: The substitute must provide CMOS output to maintain signal integrity with existing receiver circuits.

Supply Voltage Range: The substitute must operate within or encompass the 3.3V supply requirement. Substitutes with wider voltage ranges (1.62V ~ 3.63V) remain compatible as they include the 3.3V operating point.

Frequency Stability: The substitute must maintain ±50ppm frequency stability to preserve timing accuracy in the application.

Environmental and Compliance Requirements: The substitute must meet ROHS3 compliance and maintain MSL 1 rating for storage and handling compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SG-8018CE 33.3333M-TJHSA0 serves as a direct substitute for the obsolete SG-310SCF 33.3330MB based on the following engineering criteria:

Frequency Alignment: Both components operate at nominally equivalent frequencies (33.333 MHz vs. 33.3333 MHz) with identical ±50ppm stability specifications, ensuring timing accuracy is preserved across the substitution.

Mechanical and Electrical Compatibility: Identical 4-SMD, No Lead package footprints (3.20mm x 2.50mm) enable direct PCB placement without layout modifications. Both components provide CMOS output and maintain the same signal interface requirements.

Supply Voltage Compatibility: The SG-8018CE operates across 1.62V ~ 3.63V, which encompasses the original 3.3V supply requirement. This wider voltage range provides additional design flexibility without compromising the original application.

Compliance and Reliability: Both components are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent handling, storage, and environmental performance.

Product Status Advantage: The SG-8018CE is classified as active, providing long-term availability and supply chain continuity compared to the obsolete SG-310SCF.

Operational Considerations: The SG-8018CE supports an extended operating temperature range (-40°C ~ 105°C) compared to the original (-20°C ~ 70°C), offering broader environmental capability. Maximum supply current increases from 4.5mA to 8.1mA; applications must confirm power budget accommodation.

Frequently Asked Questions (FAQ)

Q: Can the SG-8018CE 33.3333M-TJHSA0 directly replace the SG-310SCF 33.3330MB without PCB modifications?

A: Yes. Both components use identical 4-SMD, No Lead packages with matching footprint dimensions (3.20mm x 2.50mm). Direct PCB placement is possible without layout changes.

Q: Are the frequency specifications equivalent between these two oscillators?

A: The frequencies are nominally equivalent (33.333 MHz vs. 33.3333 MHz) and both maintain ±50ppm stability. This difference is within the tolerance specification and does not affect timing-critical applications.

Q: What is the impact of the increased maximum supply current (4.5mA to 8.1mA)?

A: Applications must verify that the power supply and current delivery paths can accommodate the higher current draw of the SG-8018CE. If the original design operates at or near its power budget limit, current consumption must be evaluated.

Q: Does the wider supply voltage range (1.62V ~ 3.63V) of the SG-8018CE affect compatibility?

A: No. The wider voltage range is a superset of the original 3.3V requirement and provides additional design flexibility. The component operates correctly at 3.3V.

Q: Are there any compliance or certification differences between the two parts?

A: Both components are ROHS3 compliant with MSL 1 (Unlimited) ratings. No compliance differences exist that would affect substitution.

Q: What is the significance of the extended operating temperature range in the SG-8018CE?

A: The SG-8018CE supports -40°C ~ 105°C compared to the original -20°C ~ 70°C. If the application operates within the original temperature range, this difference has no impact. Applications requiring extended temperature operation benefit from the broader capability.

Q: Is the SG-8018CE available in the same packaging format (Tape & Reel)?

A: The SG-8018CE is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.