DSC1003CI5-025.0000 Equivalent & Substitute Parts

Part Overview

The DSC1003CI5-025.0000 is a 25 MHz MEMS-based XO (Standard) CMOS oscillator manufactured by Microchip Technology. This surface-mount component operates across a 1.7V to 3.6V supply range with integrated standby (power down) functionality, making it suitable for applications requiring low-power clock generation. The part is Active in product status and carries AEC-Q100 automotive-grade qualification. Substitute parts are identified when equivalent electrical performance, frequency, output type, and physical packaging can be maintained within specified tolerance ranges.

Substiute Parts

DSC1003CI5-025.0000

Microchip TechnologyIn Stock: 1078DSC1003CI5-025.0000 Datasheet

Current PartRFQ

ASEMB-25.000MHZ-LY-T

Abracon LLCIn Stock: 8419ASEMB-25.000MHZ-LY-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DSC1003CI5-025.0000 is determined by the following critical parameters:

• Frequency Match: 25 MHz (exact)
• Resonator Technology: MEMS-based
• Oscillator Classification: XO (Standard)
• Output Logic: CMOS
• Frequency Stability: ±10ppm
• Operating Temperature Range: -40°C ~ 85°C minimum coverage
• Standby Function: Power down capability required
• Package Classification: 4-lead surface-mount (VDFN or SMD, No Lead variants acceptable)
• Physical Footprint: 3.20mm x 2.50mm base dimensions
• Compliance: RoHS3 and MSL 1 rating

The ASEMB-25.000MHZ-LY-T from Abracon LLC meets these substitution criteria. While the supply voltage range differs (1.8V ~ 3.3V versus 1.7V ~ 3.6V), this represents a subset of the original specification and is acceptable for applications operating within the narrower 1.8V ~ 3.3V window. Both parts share identical frequency, stability, temperature range, package footprint, and standby functionality.

Parameter Comparison

Engineering Selection Recommendations

Both the DSC1003CI5-025.0000 and ASEMB-25.000MHZ-LY-T are Active products with full RoHS3 compliance and MSL 1 ratings, ensuring long-term availability and environmental regulatory alignment.

Primary Selection Criteria:

• Supply Voltage Requirement: If the application operates exclusively within 1.8V ~ 3.3V, the Abracon ASEMB-25.000MHZ-LY-T is a direct substitute. If the design requires operation below 1.8V or above 3.3V, the Microchip DSC1003CI5-025.0000 must be retained.

• Power Budget: The Microchip part specifies 6mA maximum supply current versus 16mA for the Abracon part. Applications with strict power constraints should prioritize the DSC1003CI5-025.0000.

• Package Handling: Both parts use identical 3.20mm x 2.50mm footprints and 0.90mm maximum height. The 4-VDFN (Microchip) and 4-SMD, No Lead (Abracon) packages are mechanically and electrically interchangeable for PCB layout purposes.

• Automotive Qualification: The Microchip DSC1003CI5-025.0000 carries AEC-Q100 certification. Applications requiring automotive-grade components should confirm equivalent qualification status for the Abracon substitute.

Frequently Asked Questions (FAQ)

Q: Can the ASEMB-25.000MHZ-LY-T replace the DSC1003CI5-025.0000 in all applications?

A: Substitution is valid only when the application's supply voltage operates within 1.8V ~ 3.3V. If the design requires operation at 1.7V or below, or above 3.3V, the original Microchip part must be used. Additionally, if AEC-Q100 automotive qualification is mandatory, verify the Abracon part's certification status before substitution.

Q: What is the difference between 4-VDFN and 4-SMD, No Lead packages?

A: Both packages share identical external dimensions (3.20mm x 2.50mm x 0.90mm) and lead configurations, making them footprint-compatible. VDFN (Very Thin Dual Flat No-Lead) and SMD, No Lead are equivalent package classifications for this frequency range. PCB layout and reflow profiles remain unchanged.

Q: Why does the Abracon part have higher maximum supply current (16mA vs. 6mA)?

A: Supply current specifications reflect worst-case operating conditions and internal circuit design differences between manufacturers. The Abracon specification provides a conservative upper limit. Actual operating current in typical applications may be significantly lower. For power-critical designs, request typical operating current data from the manufacturer.

Q: Are both parts suitable for industrial temperature ranges?

A: Both parts specify -40°C ~ 85°C operating temperature, which covers industrial and commercial applications. Neither part is rated for extended military temperature ranges (-55°C or below). Confirm temperature requirements against application specifications before selection.

Q: What does MSL 1 (Unlimited) mean for component handling?

A: MSL 1 indicates Moisture Sensitivity Level 1, meaning the component has unlimited shelf life and requires no special moisture control during storage or handling. Standard ESD precautions apply, but no baking or desiccant storage is required.

Q: Can these oscillators be used interchangeably in designs requiring frequency stability of ±10ppm?

A: Yes. Both parts specify ±10ppm frequency stability across the -40°C ~ 85°C operating range, meeting this requirement identically. Frequency stability is a primary substitution criterion and is matched between these parts.