ASFLMB-48.000MHZ-LR-T Equivalent & Substitute Parts

Part Overview

The ASFLMB-48.000MHZ-LR-T is a 48 MHz MEMS oscillator manufactured by Abracon LLC, designed for applications requiring a standard XO (crystal oscillator) with LVCMOS output. This component operates across a 1.8V to 3.3V supply voltage range and includes standby (power down) functionality. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when design requirements allow for variations in specific electrical parameters while maintaining core functional compatibility, package specifications, and compliance certifications.

Substiute Parts

ASFLMB-48.000MHZ-LR-T

Abracon LLCIn Stock: 861ASFLMB-48.000MHZ-LR-T Datasheet

Current PartRFQ

ASFLMB-48.000MHZ-LC-T

Abracon LLCIn Stock: 1448ASFLMB-48.000MHZ-LC-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ASFLMB-48.000MHZ-LC-T is identified as a manufacturer-recommended substitute for the ASFLMB-48.000MHZ-LR-T. Both parts share identical specifications across the following critical parameters that determine substitution eligibility:

• Frequency: 48 MHz
• Output Type: LVCMOS
• Supply Voltage Range: 1.8V ~ 3.3V
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 4-SMD, No Lead
• Package Dimensions: 5.00mm x 3.20mm
• Maximum Seated Height: 0.90mm
• Mounting Type: Surface Mount
• Function: Standby (Power Down)
• Current Supply (Max): 16mA
• Current Supply (Disable) (Max): 15µA
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The substitution is valid because both parts maintain identical electrical performance requirements and physical form factors required for PCB integration.

Parameter Comparison

Engineering Selection Recommendations

Both the ASFLMB-48.000MHZ-LR-T and ASFLMB-48.000MHZ-LC-T are active production components with full regulatory compliance. The primary difference between these parts is frequency stability: the LR-T variant provides ±25ppm stability, while the LC-T variant provides ±50ppm stability.

Selection between these parts depends on application-specific frequency stability requirements. Applications with tighter frequency tolerance specifications require the LR-T variant. Applications where ±50ppm stability is acceptable may use the LC-T variant. Both parts maintain identical compliance certifications (ROHS3, REACH Unaffected) and are suitable for the same PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can ASFLMB-48.000MHZ-LC-T replace ASFLMB-48.000MHZ-LR-T in existing designs?

A: Substitution is possible only if the application design allows for the reduced frequency stability specification (±50ppm versus ±25ppm). All other electrical and mechanical parameters are identical, ensuring physical and functional compatibility.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the same 4-SMD, No Lead package with dimensions of 5.00mm x 3.20mm and maximum seated height of 0.90mm. No PCB layout modifications are required for substitution.

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

A: Yes. Both the ASFLMB-48.000MHZ-LR-T and ASFLMB-48.000MHZ-LC-T operate across 1.8V to 3.3V supply voltage and maintain identical current consumption specifications (16mA maximum supply current, 15µA maximum disable current).

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

A: The ASFLMB-48.000MHZ-LR-T provides ±25ppm frequency stability, while the ASFLMB-48.000MHZ-LC-T provides ±50ppm frequency stability. This is the only electrical parameter difference between the two parts.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can these parts be used interchangeably in high-precision timing applications?

A: Interchangeability depends on the specific frequency stability tolerance required by the application. Applications requiring ±25ppm or tighter stability must use the ASFLMB-48.000MHZ-LR-T. Applications tolerating ±50ppm stability may use either part.