ASEMPC-48.000MHZ-LR-T MEMS Oscillator Equivalent & Substitute Parts

Part Overview

The ASEMPC-48.000MHZ-LR-T is a 48 MHz MEMS-based XO (Standard) oscillator manufactured by Abracon LLC. This component operates as a CMOS output device with enable/disable functionality, designed for applications requiring stable frequency generation in the 2.25V to 3.6V supply range. The part maintains Active product status and is available in high volume (1404 pcs in stock). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within the specified parameter tolerances.

Key Parameters

Parameter	Value
Frequency	48 MHz
Output Type	CMOS
Supply Voltage Range	2.25V ~ 3.6V
Frequency Stability	±25ppm
Operating Temperature Range	-40°C ~ 85°C
Maximum Supply Current	35mA
Package Type	6-SMD, No Lead
Physical Dimensions	3.20mm L x 2.50mm W x 0.90mm H (max)
Mounting Type	Surface Mount
Base Resonator	MEMS
Function	Enable/Disable

Substitute Part Grouping Explanation

Substitution eligibility for the ASEMPC-48.000MHZ-LR-T is determined by the following critical parameters:

Frequency Match: 48 MHz (exact)
Output Configuration: CMOS output with enable/disable function
Supply Voltage Compatibility: 2.25V ~ 3.6V operating range
Package Compatibility: 6-SMD, No Lead form factor with identical physical dimensions (3.20mm x 2.50mm x 0.90mm max)
Mounting Type: Surface Mount
Base Resonator Technology: MEMS

The substitute part ASEMPC-48.000MHZ-Z-T meets all critical substitution criteria. Variations in frequency stability and operating temperature range do not preclude substitution when the application requirements fall within the substitute part's specifications.

Parameter Comparison

Parameter	ASEMPC-48.000MHZ-LR-T (Main)	ASEMPC-48.000MHZ-Z-T (Substitute)
Manufacturer	Abracon LLC	Abracon LLC
Series	ASEMP, Pure Silicon™	ASEMP, Pure Silicon™
Frequency	48 MHz	48 MHz
Output Type	CMOS	CMOS
Supply Voltage Range	2.25V ~ 3.6V	2.25V ~ 3.6V
Frequency Stability	±25ppm	±50ppm
Operating Temperature Range	-40°C ~ 85°C	-55°C ~ 125°C
Maximum Supply Current	35mA	35mA
Disable Mode Current (Max)	26mA	26mA
Package / Case	6-SMD, No Lead	6-SMD, No Lead
Physical Dimensions	3.20mm x 2.50mm	3.20mm x 2.50mm
Height - Seated (Max)	0.90mm	0.90mm
Mounting Type	Surface Mount	Surface Mount
Base Resonator	MEMS	MEMS
Function	Enable/Disable	Enable/Disable
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

Both the ASEMPC-48.000MHZ-LR-T and ASEMPC-48.000MHZ-Z-T maintain Active product status and identical compliance certifications (ROHS3, REACH Unaffected, EAR99). Selection between these parts depends on application-specific requirements:

The ASEMPC-48.000MHZ-LR-T provides tighter frequency stability (±25ppm) within a standard industrial temperature range (-40°C to 85°C). This configuration is suitable for applications with moderate thermal environments and standard frequency tolerance requirements.

The ASEMPC-48.000MHZ-Z-T extends the operating temperature range to -55°C to 125°C with relaxed frequency stability (±50ppm). This configuration accommodates extended thermal operating conditions and applications where broader temperature performance is required.

Both parts share identical electrical characteristics (supply voltage, current consumption, output type, enable/disable function) and mechanical compatibility (package, dimensions, mounting type), ensuring direct substitution within the specified parameter boundaries.

Frequently Asked Questions (FAQ)

Q: Can ASEMPC-48.000MHZ-Z-T replace ASEMPC-48.000MHZ-LR-T in existing designs?

A: Yes, when application requirements fall within the substitute part's specifications. The substitute part maintains identical supply voltage range, output type, current consumption, package dimensions, and mounting configuration. Verify that the application's frequency stability requirement does not exceed ±50ppm and that the operating temperature range does not exceed -55°C to 125°C.

Q: What is the primary difference between these two parts?

A: The ASEMPC-48.000MHZ-LR-T specifies ±25ppm frequency stability over -40°C to 85°C. The ASEMPC-48.000MHZ-Z-T specifies ±50ppm frequency stability over -55°C to 125°C. Both parts are electrically and mechanically compatible.

Q: Are the physical packages identical?

A: Yes. Both parts use 6-SMD, No Lead packaging with identical dimensions (3.20mm x 2.50mm) and maximum seated height (0.90mm). PCB layout and reflow profiles remain unchanged.

Q: Do both parts require identical supply voltage?

A: Yes. Both parts operate within the 2.25V to 3.6V supply voltage range with identical maximum current consumption (35mA active, 26mA disable mode).

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical compliance status: ROHS3 Compliant, REACH Unaffected, MSL 1 (Unlimited), and ECCN EAR99 classification.

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