ASFLMB-14.7456MHZ-LC-T Equivalent & Substitute Parts

Part Overview

The ASFLMB-14.7456MHZ-LC-T is a 14.7456 MHz MEMS oscillator manufactured by Abracon LLC, featuring LVCMOS output and operating across 1.8V to 3.3V supply voltage range. This XO (Standard) oscillator includes standby power-down functionality and is housed in a 4-SMD, No Lead package measuring 5.00mm × 3.20mm. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when electrical performance parameters and mechanical compatibility remain within acceptable tolerances for the application, particularly frequency stability, supply current characteristics, and package dimensions.

Key Parameters

Parameter	Value
Frequency	14.7456 MHz
Output Type	LVCMOS
Supply Voltage Range	1.8V ~ 3.3V
Frequency Stability	±50ppm
Operating Temperature	-40°C ~ 85°C
Current - Supply (Max)	16mA
Current - Supply (Disable) (Max)	15µA
Package / Case	4-SMD, No Lead
Size / Dimension	5.00mm × 3.20mm
Height - Seated (Max)	0.90mm
Base Resonator	MEMS
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ASFLMB-14.7456MHZ-LC-T are qualified based on the following criteria:

Electrical Compatibility Requirements:

Identical frequency: 14.7456 MHz
Identical output type: LVCMOS
Identical supply voltage range: 1.8V ~ 3.3V
Identical operating temperature range: -40°C ~ 85°C
Identical maximum supply current: 16mA
Identical disable current: 15µA
Identical base resonator type: MEMS

Mechanical Compatibility Requirements:

Identical package type: 4-SMD, No Lead
Identical dimensions: 5.00mm × 3.20mm
Identical maximum seated height: 0.90mm

Allowable Variation:

Frequency stability may improve (tighter tolerance) without affecting substitution eligibility
Packaging format (bulk vs. Tape & Reel) does not affect electrical or mechanical compatibility

The ASFLMB-14.7456MHZ-LR-T and ASFLMB-14.7456MHZ-LY-T meet all electrical and mechanical compatibility requirements, with improved frequency stability specifications compared to the base part.

Parameter Comparison

Parameter	ASFLMB-14.7456MHZ-LC-T	ASFLMB-14.7456MHZ-LR-T	ASFLMB-14.7456MHZ-LY-T
Frequency	14.7456 MHz	14.7456 MHz	14.7456 MHz
Output Type	LVCMOS	LVCMOS	LVCMOS
Supply Voltage Range	1.8V ~ 3.3V	1.8V ~ 3.3V	1.8V ~ 3.3V
Frequency Stability	±50ppm	±25ppm	±10ppm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Current - Supply (Max)	16mA	16mA	16mA
Current - Supply (Disable) (Max)	15µA	15µA	15µA
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension	5.00mm × 3.20mm	5.00mm × 3.20mm	5.00mm × 3.20mm
Height - Seated (Max)	0.90mm	0.90mm	0.90mm
Base Resonator	MEMS	MEMS	MEMS
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts maintain Active product status and full RoHS3 compliance with identical regulatory certifications (REACH Unaffected, ECCN EAR99, HTSUS 8542.39.0001). Selection between the ASFLMB-14.7456MHZ-LC-T and its substitutes depends on application frequency stability requirements:

ASFLMB-14.7456MHZ-LC-T provides ±50ppm frequency stability and is suitable for applications with standard timing tolerance requirements.

ASFLMB-14.7456MHZ-LR-T offers improved ±25ppm frequency stability, providing tighter frequency control for applications requiring enhanced timing accuracy.

ASFLMB-14.7456MHZ-LY-T delivers the tightest ±10ppm frequency stability, appropriate for precision timing applications demanding superior frequency accuracy.

All parts share identical electrical performance in supply current, output characteristics, and operating conditions. Packaging format differences (bulk vs. Tape & Reel) do not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can ASFLMB-14.7456MHZ-LR-T and ASFLMB-14.7456MHZ-LY-T be used as direct replacements for ASFLMB-14.7456MHZ-LC-T?

A: Yes. Both parts are electrically and mechanically compatible. They share identical frequency, output type, supply voltage range, operating temperature, current specifications, and package dimensions. The primary difference is improved frequency stability, which does not prevent substitution.

Q: What is the difference between these three oscillators?

A: The three parts are differentiated by frequency stability specification. ASFLMB-14.7456MHZ-LC-T specifies ±50ppm, ASFLMB-14.7456MHZ-LR-T specifies ±25ppm, and ASFLMB-14.7456MHZ-LY-T specifies ±10ppm. All other electrical and mechanical parameters are identical.

Q: Does packaging format affect compatibility?

A: No. The ASFLMB-14.7456MHZ-LC-T is supplied in bulk packaging, while ASFLMB-14.7456MHZ-LR-T and ASFLMB-14.7456MHZ-LY-T are supplied in Tape & Reel format. Packaging format does not affect electrical performance or mechanical fit.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts are RoHS3 Compliant with identical regulatory status (REACH Unaffected, ECCN EAR99).

Q: What determines whether a part can substitute for the ASFLMB-14.7456MHZ-LC-T?

A: Substitution is determined by matching frequency, output type, supply voltage range, operating temperature range, maximum supply current, disable current, base resonator type, package type, and physical dimensions. Frequency stability may improve without affecting substitution eligibility.

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