TB-19.200MBD-T Equivalent & Substitute Parts

Part Overview

The TB-19.200MBD-T is a MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION, operating at 19.2 MHz with CMOS output and 3.3V supply voltage. This component features Enable/Disable functionality and is housed in a compact 4-SMD, No Lead package measuring 5.00mm x 3.20mm.

The TB-19.200MBD-T is classified as Obsolete. Locating equivalent or substitute components is necessary to support ongoing production requirements, maintenance operations, and system redesigns where this oscillator is specified in existing designs.

Substiute Parts

TB-19.200MBD-T

TXC CORPORATIONIn Stock: 917TB-19.200MBD-T Datasheet

Current PartRFQ

NSC5118S-19M2

NDK America, Inc.In Stock: 1283NSC5118S-19M2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TB-19.200MBD-T is evaluated based on the following critical parameters that must align for functional compatibility:

Mandatory Matching Parameters:

• Frequency: 19.2 MHz
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable capability
• Mounting Type: Surface Mount
• Package Dimensions: 5.00mm x 3.20mm footprint

Allowable Variation Parameters:

• Oscillator Type: XO (Standard) to VCTCXO substitution is permitted when frequency stability and temperature range requirements are met or exceeded
• Base Resonator: MEMS to Crystal substitution is permitted when all electrical specifications are satisfied
• Package Configuration: 4-SMD to 10-SMD substitution is permitted when footprint dimensions remain compatible
• Frequency Stability: Tighter stability specifications (lower ppm values) represent acceptable substitutions
• Operating Temperature Range: Extended temperature ranges represent acceptable substitutions
• Maximum Supply Current: Lower current consumption represents an acceptable substitution
• Moisture Sensitivity Level: Lower MSL ratings represent acceptable substitutions
• Product Status: Active status substitutes for Obsolete status

Parameter Comparison

Engineering Selection Recommendations

The NSC5118S-19M2 manufactured by NDK America, Inc. is a functional substitute for the TB-19.200MBD-T based on the following engineering criteria:

Electrical Compatibility: The NSC5118S-19M2 maintains identical frequency (19.2 MHz), output type (CMOS), supply voltage (3.3V), and Enable/Disable function. These parameters ensure direct functional equivalence in circuit operation.

Performance Advantages: The substitute part provides superior frequency stability (±4.6ppm versus ±25ppm), extended operating temperature range (-40°C ~ 105°C versus -40°C ~ 85°C), and reduced maximum supply current (6mA versus 25mA). These characteristics represent improvements over the original specification.

Physical Compatibility: Both components share identical footprint dimensions (5.00mm x 3.20mm), enabling direct placement on existing PCB layouts. The increase in seated height (2.10mm versus 0.80mm) must be evaluated against available vertical clearance in the target application.

Package Configuration: The NSC5118S-19M2 uses a 10-SMD, No Lead package compared to the 4-SMD, No Lead configuration of the TB-19.200MBD-T. This difference reflects the VCTCXO architecture and does not affect PCB footprint compatibility.

Product Status and Compliance: The NSC5118S-19M2 carries Active product status, ensuring ongoing availability and supply chain support. RoHS Compliance certification is provided for the substitute part.

Moisture Sensitivity Consideration: The substitute part carries MSL 3 (168 Hours) rating compared to MSL 1 (Unlimited) for the original part. This represents a more stringent moisture handling requirement during storage and assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the NSC5118S-19M2 be used as a direct replacement for the TB-19.200MBD-T?

A: The NSC5118S-19M2 is electrically and functionally compatible with the TB-19.200MBD-T. Both components operate at 19.2 MHz with CMOS output, 3.3V supply, and Enable/Disable functionality. The footprint dimensions are identical (5.00mm x 3.20mm), supporting direct PCB placement. However, the increase in seated height (2.10mm versus 0.80mm) requires verification of available vertical clearance in the target assembly.

Q: What are the key differences between these two oscillators?

A: The primary differences are: (1) Oscillator type—the TB-19.200MBD-T is an XO (Standard) with MEMS resonator, while the NSC5118S-19M2 is a VCTCXO with crystal resonator; (2) Frequency stability—±25ppm versus ±4.6ppm; (3) Operating temperature range—-40°C ~ 85°C versus -40°C ~ 105°C; (4) Supply current—25mA maximum versus 6mA maximum; (5) Package configuration—4-SMD versus 10-SMD; (6) Moisture sensitivity—MSL 1 versus MSL 3; (7) Product status—Obsolete versus Active.

Q: Does the NSC5118S-19M2 require different handling procedures?

A: The NSC5118S-19M2 carries MSL 3 (168 Hours) moisture sensitivity rating, which is more restrictive than the MSL 1 (Unlimited) rating of the TB-19.200MBD-T. This requires adherence to moisture control protocols during storage, handling, and assembly operations. Moisture bake-out procedures may be necessary if the component is exposed to humidity levels exceeding specified limits.

Q: Are there any circuit design considerations when substituting these parts?

A: Both components share identical electrical specifications for frequency, output type, supply voltage, and Enable/Disable function. No circuit modifications are required. The VCTCXO architecture of the NSC5118S-19M2 provides voltage-controlled frequency adjustment capability, which is not present in the XO design of the TB-19.200MBD-T. This additional functionality does not interfere with standard XO operation when the control voltage input is not utilized.

Q: What is the significance of the different package types (4-SMD versus 10-SMD)?

A: The package type difference reflects the internal architecture of each oscillator. The 4-SMD configuration of the TB-19.200MBD-T is typical for MEMS-based XO designs, while the 10-SMD configuration of the NSC5118S-19M2 accommodates the additional circuitry required for VCTCXO operation. Both packages maintain the same footprint dimensions (5.00mm x 3.20mm), ensuring PCB compatibility. The increase in seated height must be considered for vertical clearance.

Q: Is the NSC5118S-19M2 available in the same packaging format (Cut Tape versus Tape & Reel)?

A: The TB-19.200MBD-T is supplied in Cut Tape (CT) packaging, while the NSC5118S-19M2 is supplied in Tape & Reel (TR) packaging. These represent different distribution formats and do not affect component functionality or performance. Procurement and inventory management processes may require adjustment to accommodate the different packaging format.

Q: What is the impact of the lower supply current specification of the NSC5118S-19M2?

A: The NSC5118S-19M2 maximum supply current of 6mA is significantly lower than the 25mA specification of the TB-19.200MBD-T. This represents a power consumption advantage and may reduce thermal management requirements in the target application. No circuit modifications are necessary to accommodate this difference.

Q: Are both parts compliant with the same regulatory standards?

A: Both components carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. The NSC5118S-19M2 provides explicit RoHS Compliance certification. The TB-19.200MBD-T RoHS status is not specified in the provided data.