ASFLMB-27.000MHZ-LR-T Equivalent & Substitute Parts

Part Overview

The ASFLMB-27.000MHZ-LR-T is a 27 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 actively produced and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when packaging format changes necessitate alternative part selection while maintaining electrical and mechanical compatibility within the ASFLMB series.

Substiute Parts

ASFLMB-27.000MHZ-LR-T
Abracon LLCIn Stock: 752ASFLMB-27.000MHZ-LR-T Datasheet
ASFLMB-27.000MHZ-LR-T
Current Part
ASFLMB-27.000MHZ-LC-T
Abracon LLCIn Stock: 3903ASFLMB-27.000MHZ-LC-T Datasheet
ASFLMB-27.000MHZ-LC-T
MFR Recommended

Key Parameters

Parameter Value
Frequency 27 MHz
Output Type LVCMOS
Supply Voltage Range 1.8V ~ 3.3V
Operating Temperature -40°C ~ 85°C
Package Type 4-SMD, No Lead
Physical Dimensions 5.00mm L x 3.20mm W x 0.90mm H (max)
Base Resonator MEMS
Function Standby (Power Down)
Current Supply (Max) 16mA
Current Supply (Disable) 15µA (Max)
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited)

Substitute Part Grouping Explanation

The ASFLMB-27.000MHZ-LC-T is classified as a direct substitute based on the following criteria:

Matching Parameters (Substitution Basis):

  • Identical frequency: 27 MHz
  • Identical output type: LVCMOS
  • Identical supply voltage range: 1.8V ~ 3.3V
  • Identical operating temperature range: -40°C ~ 85°C
  • Identical package type: 4-SMD, No Lead
  • Identical physical dimensions: 5.00mm x 3.20mm x 0.90mm (max)
  • Identical base resonator technology: MEMS
  • Identical function: Standby (Power Down)
  • Identical current supply (max): 16mA
  • Identical current supply (disable): 15µA (max)
  • Identical RoHS and REACH compliance status
  • Identical MSL rating: 1 (Unlimited)

Differing Parameter:

  • Frequency Stability: ASFLMB-27.000MHZ-LR-T specifies ±25ppm; ASFLMB-27.000MHZ-LC-T specifies ±50ppm
  • Packaging Format: ASFLMB-27.000MHZ-LR-T supplied in Tape & Reel (TR); ASFLMB-27.000MHZ-LC-T supplied in Cut Tape (CT) & Digi-Reel®

Parameter Comparison

Parameter ASFLMB-27.000MHZ-LR-T ASFLMB-27.000MHZ-LC-T
Manufacturer Abracon LLC Abracon LLC
Series ASFLMB, Pure Silicon™ ASFLMB, Pure Silicon™
Frequency 27 MHz 27 MHz
Output Type LVCMOS LVCMOS
Supply Voltage 1.8V ~ 3.3V 1.8V ~ 3.3V
Frequency Stability ±25ppm ±50ppm
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Current Supply (Max) 16mA 16mA
Current Supply (Disable) 15µA 15µA
Package Type 4-SMD, No Lead 4-SMD, No Lead
Dimensions 5.00mm x 3.20mm x 0.90mm (max) 5.00mm x 3.20mm x 0.90mm (max)
Packaging Format Tape & Reel (TR) Cut Tape (CT) & Digi-Reel®
Product Status Active Active
RoHS Status ROHS3 Compliant ROHS3 Compliant
MSL Rating 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

Both parts maintain identical electrical specifications, mechanical compatibility, and regulatory compliance. Selection between ASFLMB-27.000MHZ-LR-T and ASFLMB-27.000MHZ-LC-T is determined by packaging and procurement requirements:

  • ASFLMB-27.000MHZ-LR-T is appropriate for high-volume production requiring Tape & Reel (TR) packaging format.
  • ASFLMB-27.000MHZ-LC-T is appropriate for applications requiring Cut Tape (CT) or Digi-Reel® packaging formats, or when lower frequency stability tolerance (±50ppm) is acceptable.

Both parts are Active products with full RoHS3 compliance, REACH unaffected status, and identical MSL ratings. No functional or thermal performance differences exist between these parts when applied within specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can ASFLMB-27.000MHZ-LC-T replace ASFLMB-27.000MHZ-LR-T in production?

A: Yes, provided the application tolerates ±50ppm frequency stability. The electrical performance, thermal range, supply voltage, output type, and physical dimensions are identical. Packaging format is the primary differentiator.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel (TR) is standard for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® formats are used for lower-volume orders or when component feeders require alternative tape configurations. Both formats contain identical components.

Q: Does frequency stability difference affect circuit performance?

A: Frequency stability tolerance depends on application requirements. ASFLMB-27.000MHZ-LR-T provides ±25ppm stability, while ASFLMB-27.000MHZ-LC-T provides ±50ppm stability. Applications with strict frequency accuracy requirements should specify the tighter tolerance part.

Q: Are both parts suitable for the same PCB assembly process?

A: Yes. Both parts use identical 4-SMD, No Lead package type with matching physical dimensions (5.00mm x 3.20mm x 0.90mm max height). No PCB layout or assembly process modifications are required when substituting between these parts.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. ECCN classification is EAR99 for both parts.

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