DSC1001CI2-100.0000B Equivalent & Substitute Parts

Part Overview

The DSC1001CI2-100.0000B is a 100 MHz MEMS-based XO (Standard) oscillator manufactured by Microchip Technology. This CMOS oscillator operates across a 1.8V to 3.3V supply range and includes standby (power down) functionality. The device is packaged in a 4-VDFN surface mount package with dimensions of 3.20mm x 2.50mm and a maximum seated height of 0.90mm. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

DSC1001CI2-100.0000B

Microchip TechnologyIn Stock: 914DSC1001CI2-100.0000B Datasheet

Current PartRFQ

ASEMB-100.000MHZ-LY-T

Abracon LLCIn Stock: 4140ASEMB-100.000MHZ-LY-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DSC1001CI2-100.0000B is determined by the following critical parameters:

• Frequency: 100 MHz (exact match required)
• Output Type: CMOS (exact match required)
• Supply Voltage Range: 1.8V ~ 3.3V (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Base Resonator: MEMS (exact match required)
• Function: Standby (Power Down) capability (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 3.20mm x 2.50mm footprint (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: MSL 1 (exact match required)

The ASEMB-100.000MHZ-LY-T from Abracon LLC meets all critical substitution criteria. While the package designation differs (4-SMD, No Lead versus 4-VDFN), both packages share identical physical dimensions and surface mount footprints, ensuring mechanical and electrical compatibility in PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

Both the DSC1001CI2-100.0000B and ASEMB-100.000MHZ-LY-T are active production parts with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on the following factors:

The DSC1001CI2-100.0000B offers lower maximum supply current (8.7mA versus 16mA), making it preferable for power-constrained applications. The ASEMB-100.000MHZ-LY-T provides tighter frequency stability (±10ppm versus ±25ppm), suitable for applications requiring enhanced frequency accuracy. Both parts maintain identical supply voltage ranges, operating temperature specifications, and physical footprints. The choice between 4-VDFN and 4-SMD, No Lead packages depends on PCB design requirements and manufacturing capabilities, as both packages are mechanically and electrically compatible for this application.

Frequently Asked Questions (FAQ)

Q: Can the ASEMB-100.000MHZ-LY-T directly replace the DSC1001CI2-100.0000B on existing PCBs?

A: Yes. Both parts share identical physical dimensions (3.20mm x 2.50mm x 0.90mm max height) and surface mount footprints. The 4-VDFN and 4-SMD, No Lead package designations refer to the same physical form factor and pin configuration, ensuring direct PCB compatibility without layout modifications.

Q: What is the difference in frequency stability between these parts?

A: The DSC1001CI2-100.0000B specifies ±25ppm frequency stability, while the ASEMB-100.000MHZ-LY-T specifies ±10ppm. The Abracon part provides tighter frequency tolerance. Selection depends on application requirements for frequency accuracy.

Q: Are there differences in power consumption between these oscillators?

A: Yes. The DSC1001CI2-100.0000B has a maximum supply current of 8.7mA, while the ASEMB-100.000MHZ-LY-T has a maximum supply current of 16mA. Both maintain identical disable current specifications of 15µA. For battery-powered or power-sensitive applications, the Microchip part is preferable.

Q: Do both parts support the same supply voltage range?

A: Yes. Both the DSC1001CI2-100.0000B and ASEMB-100.000MHZ-LY-T operate across 1.8V to 3.3V supply voltage ranges and support standby (power down) functionality.

Q: Are both parts compliant with environmental and regulatory standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both maintain MSL 1 (unlimited) moisture sensitivity ratings.