TD-7.3728MBE-T MEMS Oscillator Equivalent & Substitute Parts

Part Overview

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

Substiute Parts

TD-7.3728MBE-T

TXC CORPORATIONIn Stock: 1082TD-7.3728MBE-T Datasheet

Current PartRFQ

TD-7.3728MBD-T

TXC CORPORATIONIn Stock: 5732TD-7.3728MBD-T Datasheet

UpgradeRFQ

625L3I007M37280

CTS-Frequency ControlsIn Stock: 19589625L3I007M37280 Datasheet

DirectRFQ

ECS-2033-073-BN

ECS Inc.In Stock: 6142ECS-2033-073-BN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TD-7.3728MBE-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
• Package / Case: 4-SMD, No Lead
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C ~ 85°C
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Frequency Stability: ±50ppm or better (lower values acceptable)
• Current - Supply (Max): 25mA or lower (lower values acceptable)
• Height - Seated (Max): 0.031" (0.80mm) or lower (lower values acceptable)
• Base Resonator: MEMS or Crystal (both acceptable for this application)

All identified substitute parts meet these criteria and are therefore electrically and mechanically compatible with the original TD-7.3728MBE-T component.

Parameter Comparison

Engineering Selection Recommendations

TD-7.3728MBD-T (TXC CORPORATION Upgrade)

The TD-7.3728MBD-T represents an upgrade path within the same manufacturer's product line. This part maintains identical electrical and mechanical specifications to the TD-7.3728MBE-T while offering improved frequency stability (±25ppm versus ±50ppm). Both parts are classified as Obsolete; however, the TD-7.3728MBD-T provides superior frequency accuracy for applications requiring tighter tolerance control. Packaging is Tape & Reel (TR), suitable for automated assembly processes.

625L3I007M37280 (CTS-Frequency Controls Direct Substitute)

The 625L3I007M37280 is an Active product from CTS-Frequency Controls, providing long-term availability and supply chain stability. This crystal-based oscillator meets all mandatory electrical and mechanical parameters. Current consumption is reduced to 15mA maximum, and disable current is specified at 10µA. Height is 0.039" (1.00mm), which is within acceptable tolerance for most PCB layouts. RoHS3 and REACH compliance certifications are provided.

ECS-2033-073-BN (ECS Inc. Direct Substitute)

The ECS-2033-073-BN is an Active product from ECS Inc., offering the lowest current consumption at 7mA maximum with 10µA disable current. This crystal-based oscillator meets all mandatory specifications and provides the most power-efficient operation. Height is 0.035" (0.90mm). RoHS3 and REACH compliance certifications are provided.

Selection Criteria:

For applications requiring MEMS-based oscillators, the TD-7.3728MBD-T is the appropriate selection. For applications where Active product status and long-term availability are priorities, both 625L3I007M37280 and ECS-2033-073-BN are suitable. The ECS-2033-073-BN is recommended for power-constrained applications due to its lowest current consumption specification.

Frequently Asked Questions (FAQ)

Q: Can the TD-7.3728MBE-T be directly replaced with the TD-7.3728MBD-T?

A: Yes. Both parts are manufactured by TXC CORPORATION and share identical electrical and mechanical specifications. The TD-7.3728MBD-T offers improved frequency stability (±25ppm versus ±50ppm). Packaging differs only in format (Tape & Reel for the MBD-T variant).

Q: What is the difference between MEMS and Crystal-based oscillators in this comparison?

A: The TD-7.3728MBE-T and TD-7.3728MBD-T use MEMS resonators, while the 625L3I007M37280 and ECS-2033-073-BN use crystal resonators. Both technologies meet the specified electrical and mechanical parameters for this application. Crystal-based oscillators in this comparison offer Active product status and lower current consumption.

Q: Are there height restrictions for PCB layout compatibility?

A: The original TD-7.3728MBE-T specifies a maximum seated height of 0.031" (0.80mm). The TD-7.3728MBD-T matches this specification. The 625L3I007M37280 is 0.039" (1.00mm) and the ECS-2033-073-BN is 0.035" (0.90mm). Verify PCB clearance requirements before selection.

Q: Which substitute part offers the best long-term availability?

A: Both the 625L3I007M37280 (CTS-Frequency Controls) and ECS-2033-073-BN (ECS Inc.) are classified as Active products, indicating ongoing manufacturing and support. The original TD-7.3728MBE-T and TD-7.3728MBD-T are both Obsolete.

Q: What is the significance of the ±25ppm frequency stability improvement in the TD-7.3728MBD-T?

A: The TD-7.3728MBD-T provides tighter frequency tolerance (±25ppm) compared to the original part (±50ppm). This improvement is relevant for applications with strict frequency accuracy requirements. The 625L3I007M37280 and ECS-2033-073-BN maintain the ±50ppm specification.

Q: Are all substitute parts RoHS and REACH compliant?

A: The 625L3I007M37280 and ECS-2033-073-BN are certified as RoHS3 Compliant and REACH Unaffected. Compliance information for the TD-7.3728MBE-T and TD-7.3728MBD-T is not provided in the available data.

Q: What is the current consumption difference between these parts?

A: The TD-7.3728MBE-T and TD-7.3728MBD-T specify 25mA maximum supply current. The 625L3I007M37280 specifies 15mA maximum. The ECS-2033-073-BN specifies 7mA maximum. For power-constrained applications, the ECS-2033-073-BN offers the lowest consumption. Disable current is specified as 10µA for the CTS and ECS parts.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided that PCB layout accommodates the height variations noted in the parameter comparison table. All parts share identical frequency, voltage, function, package type, and mounting specifications. Verify height clearance and current budget requirements before implementation.