TA-7.3728MBD-T MEMS Oscillator Equivalent & Substitute Parts

Part Overview

The TA-7.3728MBD-T is a 7.3728 MHz MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION. This component operates at 3.3V with CMOS output and integrated Enable/Disable functionality in a 4-SMD, No Lead surface mount package. The part is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity.

Substiute Parts

TA-7.3728MBD-T

TXC CORPORATIONIn Stock: 1116TA-7.3728MBD-T Datasheet

Current PartRFQ

CPPC7LT-A5BR-7.3728TS

Cardinal Components Inc.In Stock: 949CPPC7LT-A5BR-7.3728TS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TA-7.3728MBD-T is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 7.3728 MHz (exact match required)
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable capability
• Frequency Stability: ±25ppm
• Package Type: 4-SMD, No Lead
• Physical Footprint: 7.00mm x 5.00mm

Acceptable Variation Parameters:

• Operating Temperature Range: Substitute may have narrower range than -40°C ~ 85°C
• Maximum Seated Height: Substitute may exceed 1.00mm if PCB layout permits
• Base Resonator Technology: MEMS or Crystal resonator types are functionally equivalent at specified frequency and stability
• Packaging Format: Tape & Reel acceptable for equivalent loose component specifications

The CPPC7LT-A5BR-7.3728TS from Cardinal Components Inc. meets all mandatory matching criteria and qualifies as a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CPPC7LT-A5BR-7.3728TS

The CPPC7LT-A5BR-7.3728TS qualifies as a direct functional substitute for the obsolete TA-7.3728MBD-T based on electrical parameter equivalence. Both components deliver identical frequency, output type, supply voltage, enable/disable functionality, and frequency stability specifications. The 4-SMD, No Lead package footprint is identical, ensuring PCB layout compatibility.

Operational Considerations:

The substitute component operates within a narrower temperature range (-20°C ~ 70°C versus -40°C ~ 85°C). Applications requiring the full original temperature range must verify that operating conditions remain within the substitute's specified limits.

The substitute component has a maximum seated height of 1.90mm compared to the original 1.00mm. PCB clearance and component stacking configurations must be evaluated to confirm physical compatibility in the target assembly.

Compliance Status:

The CPPC7LT-A5BR-7.3728TS carries active product status with RoHS3 compliance and REACH unaffected designation. The original TA-7.3728MBD-T is classified as Obsolete. Selection of the active substitute ensures long-term supply chain availability and regulatory compliance for new production runs.

Resonator Technology Difference:

The original component uses MEMS resonator technology while the substitute uses crystal resonator technology. Both technologies deliver the specified frequency stability of ±25ppm and are functionally equivalent for this application. No circuit modifications are required.

Frequently Asked Questions (FAQ)

Q: Can the CPPC7LT-A5BR-7.3728TS be used as a direct replacement for the TA-7.3728MBD-T without circuit modifications?

A: Yes. Both components share identical electrical specifications including frequency, output type, supply voltage, enable/disable function, and frequency stability. The 4-SMD, No Lead package footprint is identical. No circuit modifications are required for electrical compatibility.

Q: What is the impact of the narrower operating temperature range of the substitute?

A: The substitute operates from -20°C to 70°C compared to the original -40°C to 85°C range. Applications must verify that actual operating conditions remain within the substitute's specified limits. If the application requires operation below -20°C or above 70°C, the substitute is not suitable.

Q: Does the increased height of the substitute component affect PCB assembly?

A: The substitute has a maximum seated height of 1.90mm versus 1.00mm for the original. PCB layout must be reviewed to confirm adequate clearance above the component. If the assembly has height constraints or component stacking requirements, physical compatibility must be verified before implementation.

Q: Are there differences in supply current characteristics between the two components?

A: Both components specify a maximum supply current of 25mA during normal operation. The substitute specifies a maximum disable current of 50µA, which is not specified for the original component. This additional specification provides better power management data for the substitute.

Q: What is the significance of the different resonator technologies?

A: The original uses MEMS resonator technology while the substitute uses crystal resonator technology. Both achieve the specified ±25ppm frequency stability. The technologies are functionally equivalent for this application and no performance difference is expected at the specified operating conditions.

Q: Is the substitute available in the same packaging format as the original?

A: The substitute is supplied in Tape & Reel (TR) format while the original packaging format is not specified in the provided data. Both components use identical 4-SMD, No Lead package types suitable for automated assembly. Tape & Reel format is standard for surface mount component distribution.

Q: What compliance certifications does the substitute carry?

A: The CPPC7LT-A5BR-7.3728TS is RoHS3 compliant and REACH unaffected. Both components carry EAR99 export classification and 8542.39.0001 HTSUS code. The substitute's active product status ensures ongoing regulatory compliance support.

Q: Can the substitute be used in applications requiring the full -40°C to 85°C temperature range?

A: No. The substitute's operating range is limited to -20°C to 70°C. Applications requiring operation outside this range must identify alternative components or verify that actual operating conditions remain within the substitute's specified limits.