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

Part Overview

The ASFLMB-14.7456MHZ-LR-T is a MEMS-based XO (Standard) oscillator manufactured by Abracon LLC, operating at 14.7456 MHz with LVCMOS output. This component is designed for applications requiring a stable frequency reference with low power consumption and standby capability. The device operates across a 1.8V to 3.3V supply range and maintains frequency stability of ±25ppm across the -40°C to 85°C operating temperature range. As an active product with full RoHS3 compliance and unlimited moisture sensitivity rating, substitute parts may be required due to inventory constraints, design optimization for improved frequency stability, or supply chain considerations.

Substiute Parts

ASFLMB-14.7456MHZ-LR-T

Abracon LLCIn Stock: 1753ASFLMB-14.7456MHZ-LR-T Datasheet

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ASFLMB-14.7456MHZ-LY-T

Abracon LLCIn Stock: 1175ASFLMB-14.7456MHZ-LY-T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The ASFLMB-14.7456MHZ-LY-T qualifies as a direct substitute for the ASFLMB-14.7456MHZ-LR-T based on the following substitution criteria:

Critical Parameters (Must Match):

• Frequency: 14.7456 MHz
• Output Type: LVCMOS
• Voltage Supply Range: 1.8V ~ 3.3V
• Operating Temperature Range: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, No Lead
• Physical Dimensions: 0.197" L x 0.126" W (5.00mm x 3.20mm)
• Height - Seated (Max): 0.035" (0.90mm)
• Current - Supply (Max): 16mA
• Current - Supply (Disable) (Max): 15µA
• Base Resonator: MEMS
• Type: XO (Standard)
• Function: Standby (Power Down)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• Frequency Stability: ±25ppm (main part) vs. ±10ppm (substitute) — the substitute provides improved frequency stability, representing an upgrade within the same product family.

Both parts are manufactured by Abracon LLC within the ASFLMB Pure Silicon™ series and maintain identical electrical and mechanical specifications except for the frequency stability parameter, where the substitute offers tighter tolerance.

Parameter Comparison

Engineering Selection Recommendations

Both the ASFLMB-14.7456MHZ-LR-T and ASFLMB-14.7456MHZ-LY-T are active products with full RoHS3 compliance and REACH unaffected status, making them suitable for current design implementations. The ASFLMB-14.7456MHZ-LY-T provides improved frequency stability at ±10ppm compared to the ±25ppm specification of the ASFLMB-14.7456MHZ-LR-T, while maintaining identical electrical performance, power consumption, and physical form factor. Selection between these parts should be based on application-specific frequency stability requirements and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the ASFLMB-14.7456MHZ-LY-T be used as a direct replacement for the ASFLMB-14.7456MHZ-LR-T?

A: Yes. Both parts share identical frequency, output type, supply voltage range, operating temperature range, package dimensions, and power consumption specifications. The ASFLMB-14.7456MHZ-LY-T is a direct substitute with improved frequency stability.

Q: What is the difference between these two oscillators?

A: The primary difference is frequency stability. The ASFLMB-14.7456MHZ-LR-T maintains ±25ppm stability, while the ASFLMB-14.7456MHZ-LY-T maintains ±10ppm stability. All other electrical and mechanical parameters are identical.

Q: Are both parts compatible with 1.8V and 3.3V supply voltages?

A: Yes. Both oscillators operate across the 1.8V to 3.3V supply range and are suitable for mixed-voltage system designs.

Q: Do these oscillators require any special handling or storage considerations?

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both oscillators maintain specifications across the -40°C to 85°C operating temperature range.

Q: Can these oscillators be used in applications requiring standby or power-down modes?

A: Yes. Both parts include standby (power down) functionality with a maximum disable current of 15µA, suitable for low-power applications.