ASD3-27.000MHZ-LCS-T Equivalent & Substitute Parts

Part Overview

The ASD3-27.000MHZ-LCS-T is a 27 MHz XO (Standard) HCMOS oscillator manufactured by Abracon LLC. This surface mount crystal oscillator operates at 1.8V with Enable/Disable functionality and is housed in a 4-SMD, No Lead package. The device is currently in Active product status with 1216 units available in inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including frequency, output type, supply voltage, operating temperature range, and package configuration. Alternative sources provide design flexibility, supply chain redundancy, and procurement options while maintaining functional equivalence.

Key Parameters

Parameter	Value
Frequency	27 MHz
Output Type	HCMOS
Supply Voltage	1.8V
Function	Enable/Disable
Operating Temperature Range	-40°C ~ 85°C
Frequency Stability	±50ppm
Package Type	4-SMD, No Lead
Package Dimensions	0.098" L x 0.079" W (2.50mm x 2.00mm)
Height - Seated (Max)	0.039" (1.00mm)
Mounting Type	Surface Mount
Base Resonator	Crystal
Type	XO (Standard)

Substitute Part Grouping Explanation

Substitution eligibility for the ASD3-27.000MHZ-LCS-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Frequency: 27 MHz
Output Type: HCMOS
Supply Voltage: 1.8V
Function: Enable/Disable
Operating Temperature Range: -40°C ~ 85°C
Frequency Stability: ±50ppm
Package Type: 4-SMD, No Lead
Package Dimensions: 0.098" L x 0.079" W (2.50mm x 2.00mm)
Height - Seated (Max): 0.039" (1.00mm)
Mounting Type: Surface Mount
Base Resonator: Crystal
Type: XO (Standard)

The substitute part CTS-Frequency Controls 625M3I027M00000 meets all mandatory matching parameters and is therefore classified as a parametric equivalent. Variations in current consumption, packaging format (Tape & Reel vs. Cut Tape), and moisture sensitivity level do not affect functional substitution in applications where the main part specifications are required.

Parameter Comparison

Parameter	ASD3-27.000MHZ-LCS-T (Abracon LLC)	625M3I027M00000 (CTS-Frequency Controls)	Match Status
Frequency	27 MHz	27 MHz	Equivalent
Output Type	HCMOS	HCMOS	Equivalent
Supply Voltage	1.8V	1.8V	Equivalent
Function	Enable/Disable	Enable/Disable	Equivalent
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	Equivalent
Frequency Stability	±50ppm	±50ppm	Equivalent
Package Type	4-SMD, No Lead	4-SMD, No Lead	Equivalent
Package Dimensions	0.098" L x 0.079" W (2.50mm x 2.00mm)	0.098" L x 0.079" W (2.50mm x 2.00mm)	Equivalent
Height - Seated (Max)	0.039" (1.00mm)	0.039" (1.00mm)	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Current - Supply (Max)	4mA	7mA	Non-Critical Variation
Current - Supply (Disable) (Max)	20µA	15µA	Non-Critical Variation
Packaging Format	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Procurement Variation
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
ECCN	EAR99	EAR99	Equivalent

Engineering Selection Recommendations

Both the ASD3-27.000MHZ-LCS-T and 625M3I027M00000 are Active product status components with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use.

Selection between these parts is based on:

Abracon LLC ASD3-27.000MHZ-LCS-T: Available in Cut Tape (CT) and Digi-Reel® packaging formats. Current supply specification of 4mA maximum. Moisture Sensitivity Level not applicable. Suitable for applications requiring flexible packaging options or lower supply current operation.

CTS-Frequency Controls 625M3I027M00000: Available in Tape & Reel (TR) format. Current supply specification of 7mA maximum. Moisture Sensitivity Level 1 (Unlimited). Suitable for high-volume production environments and applications where moisture sensitivity is not a constraint.

Both parts maintain identical electrical performance across frequency, output type, supply voltage, function, operating temperature, and frequency stability specifications. Mechanical compatibility is confirmed through equivalent package dimensions and mounting characteristics.

Frequently Asked Questions (FAQ)

Q: Can the CTS-Frequency Controls 625M3I027M00000 directly replace the Abracon LLC ASD3-27.000MHZ-LCS-T in existing designs?

A: Yes. Both parts are parametric equivalents with identical frequency (27 MHz), output type (HCMOS), supply voltage (1.8V), function (Enable/Disable), operating temperature range (-40°C ~ 85°C), frequency stability (±50ppm), and package configuration (4-SMD, No Lead with 2.50mm x 2.00mm dimensions). Pin-to-pin compatibility and electrical performance are equivalent.

Q: What is the difference in current consumption between these parts?

A: The Abracon part specifies 4mA maximum supply current, while the CTS part specifies 7mA maximum. The CTS part also specifies 15µA maximum disable current compared to 20µA for the Abracon part. These variations do not affect functional substitution in standard applications.

Q: Are there packaging format differences between these parts?

A: Yes. The Abracon ASD3-27.000MHZ-LCS-T is available in Cut Tape (CT) and Digi-Reel® formats, while the CTS 625M3I027M00000 is supplied in Tape & Reel (TR) format. Both formats are standard for surface mount component procurement and do not affect circuit performance.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use in regulated markets.

Q: What is the Moisture Sensitivity Level difference?

A: The Abracon part lists Moisture Sensitivity Level as Not Applicable, while the CTS part specifies MSL 1 (Unlimited). This indicates the CTS part has no moisture sensitivity constraints during storage and handling.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical package dimensions of 0.098" L x 0.079" W (2.50mm x 2.00mm) and maximum seated height of 0.039" (1.00mm), confirming mechanical compatibility for PCB layout and assembly.

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