TA-7.3728MBE-T Equivalent & Substitute Parts

Part Overview

The TA-7.3728MBE-T is a 7.3728 MHz MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION. This component operates at 3.3V with CMOS output, Enable/Disable function, and is housed in a 4-SMD, No Lead surface mount package. The part is currently classified as Obsolete, making identification of compatible substitute components essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Frequency	7.3728 MHz
Output Type	CMOS
Supply Voltage	3.3V
Function	Enable/Disable
Frequency Stability	±50ppm
Operating Temperature Range	-40°C ~ 85°C
Current - Supply (Max)	25mA
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	0.276" L x 0.197" W (7.00mm x 5.00mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TA-7.3728MBE-T is based on strict electrical and mechanical parameter matching. The following criteria determine functional equivalence:

Critical Matching Parameters:

Frequency: 7.3728 MHz (exact match required)
Output Type: CMOS
Supply Voltage: 3.3V
Function: Enable/Disable capability
Frequency Stability: ±50ppm
Operating Temperature Range: -40°C ~ 85°C
Current - Supply (Max): 25mA
Package / Case: 4-SMD, No Lead
Footprint Dimensions: 0.276" L x 0.197" W (7.00mm x 5.00mm)
MSL Rating: 1 (Unlimited)

The identified substitute parts are manufactured by Cardinal Components Inc. under the FIPO™ CPP series. Both substitutes utilize crystal-based resonators rather than MEMS technology but maintain electrical and mechanical compatibility with the original specification.

Parameter Comparison

Parameter	TA-7.3728MBE-T (TXC)	CPPC7LT-A7BP-7.3728TS (Cardinal)	CPPC7LZ-A7BP-7.3728TS (Cardinal)
Frequency	7.3728 MHz	7.3728 MHz	7.3728 MHz
Base Resonator	MEMS	Crystal	Crystal
Type	XO (Standard)	XO (Standard)	XO (Standard)
Output	CMOS	CMOS	CMOS
Voltage - Supply	3.3V	3.3V	3.3V
Function	Enable/Disable	Enable/Disable	Enable/Disable
Frequency Stability	±50ppm	±50ppm	±50ppm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Current - Supply (Max)	25mA	25mA	25mA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension	0.276" L x 0.197" W (7.00mm x 5.00mm)	0.276" L x 0.197" W (7.00mm x 5.00mm)	0.276" L x 0.197" W (7.00mm x 5.00mm)
Height - Seated (Max)	0.039" (1.00mm)	0.075" (1.90mm)	0.075" (1.90mm)
Current - Supply (Disable) (Max)	Not specified	50µA	50µA
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
REACH Status	Not specified	REACH Unaffected	REACH Unaffected
Packaging	Not specified	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Both Cardinal Components FIPO™ CPP series oscillators (CPPC7LT-A7BP-7.3728TS and CPPC7LZ-A7BP-7.3728TS) are functionally equivalent substitutes for the obsolete TA-7.3728MBE-T. Selection between the two Cardinal options is based on product availability and supply chain requirements, as both maintain identical electrical specifications and package dimensions.

Key Considerations:

The substitute parts are classified as Active products with current manufacturing status, ensuring long-term availability compared to the Obsolete TA-7.3728MBE-T. Both substitutes carry ROHS3 compliance and REACH Unaffected status, meeting modern regulatory requirements.

Height difference: The substitute parts measure 0.075" (1.90mm) seated height compared to the original 0.039" (1.00mm). This dimensional variance requires PCB layout verification to confirm clearance in existing designs.

Current consumption during disable mode is specified for the substitute parts at 50µA maximum, providing additional power management data not available for the original component.

Frequently Asked Questions (FAQ)

Q: Can CPPC7LT-A7BP-7.3728TS and CPPC7LZ-A7BP-7.3728TS be used interchangeably with TA-7.3728MBE-T?

A: Both Cardinal Components oscillators meet all critical electrical parameters: 7.3728 MHz frequency, 3.3V supply, CMOS output, Enable/Disable function, ±50ppm stability, and -40°C to 85°C operating range. Footprint dimensions are identical at 7.00mm x 5.00mm. PCB layout verification is required due to increased seated height (1.90mm vs. 1.00mm).

Q: What is the primary difference between the two Cardinal substitute parts?

A: CPPC7LT-A7BP-7.3728TS and CPPC7LZ-A7BP-7.3728TS are both FIPO™ CPP series oscillators with identical electrical and mechanical specifications. Selection is based on inventory availability and supply chain logistics rather than technical differentiation.

Q: Does the height difference affect PCB compatibility?

A: The substitute parts are 0.90mm taller than the original (1.90mm vs. 1.00mm seated height). Designs with tight vertical clearance constraints require layout review. Horizontal footprint dimensions remain unchanged at 7.00mm x 5.00mm.

Q: Are the substitute parts RoHS and REACH compliant?

A: Both Cardinal Components oscillators are ROHS3 Compliant and REACH Unaffected, meeting current regulatory standards. The original TA-7.3728MBE-T compliance status is not specified in available documentation.

Q: What is the disable mode current consumption?

A: The substitute parts specify 50µA maximum current during disable mode. The original component does not provide this specification. This parameter is relevant for power-sensitive applications utilizing the Enable/Disable function.

Q: Is packaging format a consideration for substitution?

A: The substitute parts are supplied in Tape & Reel (TR) format. Original packaging format for TA-7.3728MBE-T is not specified. Verify packaging requirements for your procurement and assembly processes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message