TC-76.800MBD-T Equivalent & Substitute Parts

Part Overview

The TC-76.800MBD-T is a 76.8 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 package measuring 3.20mm x 2.50mm. The product is classified as Obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and procurement continuity.

Substiute Parts

TC-76.800MBD-T

TXC CORPORATIONIn Stock: 943TC-76.800MBD-T Datasheet

Current PartRFQ

7X-76.800MBD-T

TXC CORPORATIONIn Stock: 10317X-76.800MBD-T Datasheet

DirectRFQ

ASEMPC-76.800MHZ-LR-T

Abracon LLCIn Stock: 1109ASEMPC-76.800MHZ-LR-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the TC-76.800MBD-T are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Parameters for Substitution:

• Frequency: 76.8 MHz (exact match required)
• Output Type: CMOS
• Function: Enable/Disable capability
• Operating Temperature Range: -40°C ~ 85°C (minimum)
• Frequency Stability: ±25ppm (minimum acceptable)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

Acceptable Parameter Variations:

• Supply Voltage: Components rated for 3.3V or wider voltage ranges (2.25V ~ 3.6V) that include 3.3V operation
• Maximum Supply Current: Substitute components may have different current specifications provided they meet circuit requirements
• Base Resonator Type: Both MEMS and Crystal resonator types are acceptable if all other parameters align
• Package Configuration: 4-SMD and 6-SMD packages are both acceptable for surface mount applications with identical footprint dimensions

Parameter Comparison

Engineering Selection Recommendations

7X-76.800MBD-T (TXC CORPORATION): This substitute maintains identical electrical specifications and package configuration to the main part. The 7X series uses a Crystal resonator instead of MEMS technology. Product status is Active with RoHS Compliance and REACH Unaffected certification. Maximum supply current is reduced to 15mA compared to the original 30mA specification. Seated height increases to 1.10mm. This component is recommended for applications where TXC CORPORATION component continuity is required and the reduced current draw is acceptable.

ASEMPC-76.800MHZ-LR-T (Abracon LLC): This substitute provides equivalent electrical performance with expanded supply voltage range (2.25V ~ 3.6V), accommodating the original 3.3V requirement. The component uses MEMS resonator technology matching the main part. Product status is Active with ROHS3 Compliance and REACH Unaffected certification. Package configuration is 6-SMD, No Lead with identical footprint dimensions (3.20mm x 2.50mm) but increased seated height to 0.90mm. Maximum supply current is 35mA with disable current specification of 26mA. This component is recommended for applications requiring broader voltage tolerance and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can the 7X-76.800MBD-T replace the TC-76.800MBD-T in all applications?

A: The 7X-76.800MBD-T is electrically compatible for applications where the reduced maximum supply current (15mA versus 30mA) meets circuit requirements. The increased seated height (1.10mm versus 0.80mm) must be verified against PCB clearance constraints. Both components share identical frequency, output type, operating temperature range, and package footprint dimensions.

Q: What is the difference between MEMS and Crystal resonator types in these oscillators?

A: Both the TC-76.800MBD-T and ASEMPC-76.800MHZ-LR-T use MEMS resonators, while the 7X-76.800MBD-T uses Crystal resonator technology. All three components meet the ±25ppm frequency stability specification and are functionally equivalent for the specified operating conditions.

Q: Is the ASEMPC-76.800MHZ-LR-T compatible with 3.3V circuits?

A: Yes. The ASEMPC-76.800MHZ-LR-T is rated for 2.25V ~ 3.6V supply voltage, which includes the 3.3V requirement of the original TC-76.800MBD-T. The wider voltage range provides additional design flexibility.

Q: What are the package differences between the substitute parts?

A: The TC-76.800MBD-T and 7X-76.800MBD-T both use 4-SMD, No Lead packages. The ASEMPC-76.800MHZ-LR-T uses a 6-SMD, No Lead package. All three components share identical footprint dimensions (3.20mm x 2.50mm), but seated heights vary: 0.80mm (TC), 1.10mm (7X), and 0.90mm (ASEMPC).

Q: Are there compliance differences between the substitute parts?

A: The 7X-76.800MBD-T is RoHS Compliant and REACH Unaffected. The ASEMPC-76.800MHZ-LR-T is ROHS3 Compliant and REACH Unaffected. The original TC-76.800MBD-T does not specify RoHS or REACH status. Both substitutes meet current regulatory requirements.

Q: What is the significance of the Enable/Disable function?

A: The Enable/Disable function allows the oscillator output to be controlled via an external signal, enabling power management in the host circuit. All three components (main part and substitutes) provide this functionality.

Q: Can I use the ASEMPC-76.800MHZ-LR-T if my circuit is designed for 4-SMD packages?

A: The ASEMPC-76.800MHZ-LR-T uses a 6-SMD package configuration. However, since all three components share identical footprint dimensions (3.20mm x 2.50mm), PCB layout compatibility depends on specific pad configuration and clearance requirements. Physical dimensions must be verified against your PCB design.