DSC1001DI2-033.3333B MEMS Oscillator Equivalent & Substitute Parts

Part Overview

The DSC1001DI2-033.3333B is a 33.3333 MHz MEMS-based XO (Standard) oscillator manufactured by Microchip Technology. This component operates across a 1.8V to 3.3V supply range with CMOS output, designed for applications requiring stable frequency generation with low power consumption. The device features Standby (Power Down) functionality, enabling reduced current draw during inactive periods. Currently in Active product status with AEC-Q100 automotive-grade qualification, this oscillator is widely used in timing-critical applications. Identifying equivalent and substitute parts is essential for supply chain flexibility, inventory optimization, and ensuring design continuity across manufacturing batches.

Substiute Parts

DSC1001DI2-033.3333B

Microchip TechnologyIn Stock: 1136DSC1001DI2-033.3333B Datasheet

Current PartRFQ

DSC1001DI2-033.3333T

Microchip TechnologyIn Stock: 2188DSC1001DI2-033.3333T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DSC1001DI2-033.3333B is determined by strict equivalence across the following critical parameters:

• Frequency: Must be exactly 33.3333 MHz
• Output Configuration: Must be CMOS
• Supply Voltage Range: Must support 1.8V ~ 3.3V operation
• Frequency Stability: Must meet ±25ppm specification
• Operating Temperature Range: Must cover -40°C ~ 85°C
• Package Type: Must be 4-VDFN with identical physical dimensions (2.50mm x 2.00mm)
• Power Characteristics: Must maintain 7.2mA maximum supply current and 15µA disable current
• Base Resonator Technology: Must utilize MEMS technology
• Functional Capability: Must include Standby (Power Down) functionality
• Compliance Standards: Must maintain AEC-Q100 qualification and ROHS3 compliance

The DSC1001DI2-033.3333T qualifies as a parametric equivalent because it matches all critical electrical and mechanical specifications. The only difference is packaging format (Tape & Reel versus standard packaging), which does not affect electrical performance or functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The DSC1001DI2-033.3333T is a direct parametric equivalent to the DSC1001DI2-033.3333B. Both components are manufactured by Microchip Technology, maintain Active product status, and carry identical electrical specifications, frequency accuracy, and compliance certifications (AEC-Q100, ROHS3).

The distinction between these parts is packaging format only. The DSC1001DI2-033.3333B is supplied in standard packaging, while the DSC1001DI2-033.3333T is supplied in Tape & Reel (TR) format. This difference affects procurement and assembly processes but does not impact electrical performance, functional capability, or circuit compatibility.

Selection between these equivalents should be based on:

• Manufacturing process requirements: Tape & Reel format is optimized for automated pick-and-place assembly
• Inventory management: Standard packaging may be preferred for manual assembly or small-volume applications
• Supply chain availability: Current inventory levels (DSC1001DI2-033.3333B: 1074 Pcs; DSC1001DI2-033.3333T: 2121 Pcs) may influence procurement decisions
• Cost considerations: Packaging format may affect unit pricing

Both parts are suitable for direct substitution in circuit designs without modification to PCB layout, schematic connections, or firmware timing parameters.

Frequently Asked Questions (FAQ)

Q: Can DSC1001DI2-033.3333T replace DSC1001DI2-033.3333B in an existing design?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, frequency output, supply voltage requirements, and package dimensions. The only difference is packaging format (Tape & Reel versus standard). No circuit modifications are required.

Q: What is the difference between the two part numbers?

A: The suffix "T" in DSC1001DI2-033.3333T indicates Tape & Reel packaging format, optimized for automated assembly. The DSC1001DI2-033.3333B uses standard packaging. All electrical and functional characteristics are identical.

Q: Are both parts AEC-Q100 qualified?

A: Yes. Both DSC1001DI2-033.3333B and DSC1001DI2-033.3333T carry AEC-Q100 automotive-grade qualification and ROHS3 compliance certification.

Q: Will substitution affect PCB layout or assembly?

A: No electrical or mechanical changes are required. Both parts use the same 4-VDFN package with identical 2.50mm x 2.00mm x 0.90mm dimensions. PCB footprints, schematic connections, and timing parameters remain unchanged. Assembly process may differ only if transitioning between manual and automated pick-and-place operations.

Q: What is the frequency stability specification for both parts?

A: Both parts maintain ±25ppm frequency stability across the -40°C to 85°C operating temperature range.

Q: Are there any supply voltage or current differences?

A: No. Both parts operate identically across 1.8V to 3.3V supply range, draw maximum 7.2mA during operation, and consume 15µA in Standby (Power Down) mode.

Q: Which part should be selected for new designs?

A: Selection depends on manufacturing requirements. For automated assembly lines, DSC1001DI2-033.3333T (Tape & Reel) is standard. For manual assembly or low-volume production, DSC1001DI2-033.3333B may be more practical. Both are equally suitable from an electrical and reliability standpoint.